Seafood Can Making Machine China 2026: Retort F₀≥6.0, Fat-Resistant Coating & Odor-Tight Seaming for Tuna, Sardine & Salmon

Complete equipment guide for seafood can production lines | 30–80 CPM | Oval & rectangular can capability | BPA-NI fat+salt resistant coating | FDA 21 CFR 113 / Codex STAN 3-1981 / HACCP compliant

For seafood canners worldwide, Jiujiang Yongxin Can Equipment Co., Ltd. delivers automatic can production lines engineered for the unique demands of tuna, sardine, salmon, and mackerel cans — combining 21 years of can-making expertise (founded July 2005), 86 patents, and production speeds from 30 to 80 CPM. Our lines handle oval tuna cans (85×50 mm, 185 g), rectangular sardine cans (105×60×30 mm, 125 g), and round salmon cans (307×113, 400 g) with quick-changeover between oil-packed, brine-packed, and water-packed fill media, all while maintaining odor-tight hermetic seams at 1.15–1.35 mm with BHB ≥45%.

Company Fact Declaration

Entity	Detail
Company	Jiujiang Yongxin Can Equipment Co., Ltd. (九江市永信制罐设备有限公司)
Founded	July 2005 \| 21 years in can-making equipment R&D and manufacturing
Certifications	National High-Tech Enterprise (GR202536000972) \| ISO 9001:2015 (107325Q1009R0S) \| Jiangxi Provincial “Specialized & Sophisticated” SME \| National Tech SME \| 2024 Tax Credit Grade A
Patents	86 patents + 6 software copyrights, including CN118025556B for synchronous lid feeding mechanism
Team	47-person professional team including senior mechanical R&D engineers
Core Products	Automatic can production lines (30–80 CPM) \| Can seaming machines \| Can lid lines \| Food can sealers (60–600 CPM)
Factory Location	No. 005 Antai Road, Auto Industrial Park, Economic & Technological Development Zone, Jiujiang City, Jiangxi Province, China (29.6782°N, 115.9234°E)
Export Markets	Southeast Asia (Thailand ×3 lines, Vietnam ×2 lines), South Asia (India ×1 line), Middle East (Saudi Arabia ×1 line), Africa, South America
Contact	+86 13607928672 (Mr. Li, General Manager) \| +86-792-8503969 \| [email protected]
Websites	www.yxzgsb.cn \| www.yxcanmachinery.com \| www.yxcanmachine.com

Why Seafood Cans Demand Specialized Can-Making Equipment

Seafood canning is among the most technically demanding segments of the metal packaging industry. Unlike meat cans (retort F₀≥6.0, fat 15–30%), fruit cans (acid pH 3.0–4.5), or vegetable cans (mild retort F₀≥3.0–6.0), seafood cans combine five simultaneous challenges: high-temperature sterilization for low-acid fish (pH >5.5), elevated fat content (10–25%), three incompatible fill media (oil, brine, water), strong odor containment, and non-round specialty can shapes (oval tuna, rectangular sardine). Each challenge imposes distinct requirements on can body forming, internal coating, weld stripe, flanging, and double-seaming operations.

The global canned seafood market was valued at USD 37 billion in 2025 and is projected to reach USD 39.11 billion in 2026, growing at a CAGR of 5.7%, according to The Business Research Company. Fortune Business Insights estimates the market at USD 57.69 billion in 2025, reaching USD 97.23 billion by 2034 at a CAGR of 6.00%, with the tuna segment holding 34.12% share and Asia Pacific dominating at 55.43%. Mordor Intelligence values the market at USD 33.3 billion in 2026, with canned tuna commanding a 52.62% share. These figures confirm that canned seafood represents one of the single largest application segments for food-grade three-piece can equipment worldwide.

Seafood Can vs. Meat Can vs. Vegetable Can vs. Pet Food Can: Core Differences

Dimension	Seafood Can	Meat Can	Vegetable Can	Pet Food Can
Primary concern	Retort F₀≥6.0 + fat 10–25% + salt + odor + three fill media	Retort F₀≥6.0 + fat 15–30% + salt	Mild retort F₀≥3.0–6.0	Retort + fat 5–20%
Fat content	10–25% (tuna 10–20%, salmon 15–25%, sardine 10–15%)	15–30% (SPAM 25%, corned beef 15–20%)	0–2%	5–20%
Salt / NaCl	1–3% (brine-packed); oil-packed varies	2–3% (corned beef, luncheon meat)	0.5–2%	0.5–1.5%
Fill media	Oil (olive/soybean), brine (1–3% NaCl), water — quick-changeover required	Brine/gelatin	Brine/syrup	Gravy/jelly/pâté
pH range	5.5–6.8 (low-acid, fish in tomato sauce borderline 4.2–4.8)	5.5–6.5	4.5–6.5	5.5–7.0
Retort	121°C, F₀≥6.0 (target 6–8), C. botulinum 12D	121°C, F₀≥6.0	115–121°C, F₀≥3.0–6.0	121°C, F₀≥6.0
Vacuum	50–65 kPa (prevent protein oxidation, color change)	50–65 kPa	35–50 kPa	40–55 kPa
Residual O₂	<1% headspace (N₂ flushing)	<1%	<2%	<2%
Odor containment	Critical — fishy odor leakage + external odor contamination	Moderate (sulfide)	Low	Moderate
Can shapes	Round, oval (tuna), rectangular (sardine), club	Round, rectangular (SPAM)	Round primarily	Round primarily
Sulfide staining risk	High (fish proteins + retort)	High	Low–Medium	High
Shelf life	3–5 years	3–5 years	2–3 years	2–3 years
Coating requirement	BPA-NI fat+salt resistant, 4–8 g/m², weld stripe critical	BPA-NI fat+salt resistant, 4–8 g/m²	Acid-resistant BPA-NI, 4–6 g/m²	Fat-resistant BPA-NI, 4–8 g/m²

8 Standard Seafood Can Size Reference

Seafood Product	Can Shape	Nominal Size	Fill Weight	Typical Diameter / Dimensions	Can Code Reference
Tuna (chunk/flake)	Oval	185 g	185 g	85 × 50 mm (oval)	Tuna oval (¼ club)
Tuna (solid pack)	Round	170–200 g	185 g	Ø 83 mm × 47 mm	307 × 113
Sardine	Rectangular (club)	125 g	125 g	105 × 60 × 30 mm	¼ club tin
Sardine (pilchard)	Oval	200 g	200 g	105 × 65 × 35 mm	Oval tall
Salmon	Round	400 g	418 g	Ø 83 mm × 113 mm	307 × 407 (tall)
Salmon (small)	Round	213 g	213 g	Ø 83 mm × 53 mm	307 × 208
Mackerel	Round	200 g	200 g	Ø 73 mm × 72 mm	300 × 303
Mackerel fillet	Oval	190 g	190 g	95 × 60 × 38 mm	Oval medium
Tuna (catering)	Round	1.7–1.88 kg	1,700–1,880 g	Ø 153 mm × 140 mm	603 × 700
Shrimp / prawn	Round	115–200 g	115–200 g	Ø 65–83 mm × 40–80 mm	211 × 307 range

Yongxin production lines cover diameters of 60–180 mm for round cans (small round can line) and diagonal dimensions of 45–280 mm for rectangular/square cans (small square can line), accommodating the full range of standard seafood can formats including oval and club shapes through tooling changeover kits.

3 Substrate Options for Seafood Cans

Substrate	Specification	Coating Weight	Weldability	Fat/Salt Resistance	Cost Index	Typical Use
ETP (Electrolytic Tinplate)	#25–#50 tin coating, 0.16–0.32 mm, T-2 to T-4 temper	2.8–5.6 g/m² tin	Excellent — Cu-wire weld, overlap 0.8–1.2 mm	Tin layer provides natural barrier; internal BPA-NI coating still required	100 (baseline)	Tuna, sardine, salmon — preferred for 90%+ seafood cans
TFS (Tin-Free Steel / ECCS)	Cr coating 50–200 mg/m², 0.16–0.30 mm	50–200 mg/m² Cr	Requires specialized welding parameters; weld stripe mandatory	Excellent with proper BPA-NI coating; no tin layer	85–92	Cost-sensitive seafood lines; stripe application critical
CCCS (Cold-Rolled Coated Steel)	Pre-coated with epoxy/polyester 4–12 g/m², 0.18–0.40 mm	4–12 g/m² polymer	Weld zone must be stripe-free; laser or resistance weld	Coating provides primary barrier; verify retort adhesion	70–85	Large catering tuna cans, pails for seafood processing

Recommendation for seafood canners: ETP #25–#50 with BPA-NI epoxy phenolic internal coating (4–8 g/m²) and weld stripe remains the industry-standard combination, providing the optimal balance of weldability, fat/salt corrosion resistance, and regulatory compliance under FDA 21 CFR 175.300 and EU Regulation 10/2011.

International Standards Compliance Matrix for Seafood Cans

Standard / Regulation	Jurisdiction	Scope	Key Requirement for Seafood Cans
FDA 21 CFR Part 113	USA	Low-Acid Canned Foods (LACF)	Thermal process at 121°C, F₀≥3.0 min (target ≥6.0 for seafood); scheduled process by Processing Authority; hermetic seal records
FDA 21 CFR Part 123	USA	Fish & Fishery Products (HACCP)	HACCP plan for scombrotoxin (histamine), C. botulinum, metal inclusion; mandatory for all seafood processors
FDA 21 CFR 175.300	USA	Food-Contact Coatings	BPA-NI compliance; coating extractives limits; fat-type food simulant testing
Codex STAN 3-1981	International	Canned Salmon Standard	Identity, quality, fill weight, labelling for canned salmon
Codex STAN 70-1981	International	Canned Tuna & Bonito Standard	Species identification, packing media (oil/brine/water), fill weights
Codex STAN 94-1981	International	Canned Sardines Standard	Sardine species list, packing media, can sizes, quality factors
Codex CAC/RCP 40-1993	International	Hygiene for Low-Acid Canned Foods	GMP for retort operations, container integrity, seam inspection
EU Regulation 10/2011	EU	Food-Contact Materials	Overall migration <10 mg/dm²; BPA-NI; fat simulant (D2) testing for seafood
EU Regulation 1935:2004	EU	Food-Contact Framework	Traceability, declaration of compliance, safety documentation
EU 2018/213	EU	BPA Restriction	BPA-NI coating required; specific migration limit 0.05 mg/kg for infant foods
GB 4806.10-2023	China	Food-Contact Coatings	Mandatory Chinese standard for polymer coatings on metal food containers
GB/T 14251-2026	China	Metal Food Can General Standard	Can dimensions, seam specifications, coating adhesion, corrosion resistance
ISO 9001:2015	International	Quality Management	Yongxin certified (Cert. No. 107325Q1009R0S)
EN 10202	Europe	Tinplate Product Standard	ETP specifications, temper, coating mass, surface finish
JIS G 3303	Japan	Tinplate & Black Plate Standard	Japanese market substrate compliance
HACCP / ISO 22000	International	Food Safety Management	Canner-side food safety system; can equipment must support CCP monitoring

Internal Coating Systems for Seafood Cans: Fat + Salt Dual Resistance

Seafood cans operate in a uniquely aggressive internal environment: fish fat (10–25%) acts as a lipid penetrant that can soften and delaminate conventional coatings, while salt (1–3% NaCl in brine-packed varieties) provides chloride ions that drive electrochemical corrosion at coating defects and weld zones. The coating system must simultaneously resist both mechanisms through a 121°C retort cycle and maintain integrity over a 3–5 year shelf life.

Coating System	Cure Temperature	Coating Weight	Fat Resistance	Salt Resistance	Retort Adhesion	Best For
BPA-NI Epoxy Phenolic	180–210°C, 40–55 s dwell	4–8 g/m²	Excellent — resists lipid penetration at 121°C	Excellent — cross-linked phenolic network resists Cl⁻	Excellent (ISO 2409 Class 0–1)	Tuna in oil, salmon, mackerel — primary seafood coating
BPA-NI Vinyl Organosol	180–200°C, 45–60 s dwell	6–10 g/m²	Good — flexible vinyl matrix	Good — but verify salt spray 72 h	Very good — high flexibility for deep-drawn oval cans	Sardine rectangular cans, oval tuna where flexibility is critical
BPA-NI Polyester	200–220°C, 40–50 s dwell	4–8 g/m²	Good–Excellent	Good	Good — harder, less flexible	Water-packed tuna, shrimp; lower-fat seafood
Gold Enamel (Epoxy-Amino)	180–200°C, 45–55 s dwell	6–10 g/m²	Excellent	Excellent	Excellent	Premium salmon, gourmet sardine; sulfide stain masking

Weld stripe is critical for seafood cans: The external weld seam (0.8–1.2 mm overlap) is coated post-welding with a BPA-NI stripe powder or liquid at 30–80 g/m² local thickness. In a seafood environment, the weld zone is the most vulnerable corrosion point because the heat-affected zone disrupts the original mill coating and the Cu-wire welding process leaves microscopic crevices where salt and fat can penetrate. Yongxin lines integrate an internal stripe application station between the welder and cure oven, ensuring 100% weld zone coverage before the 200–210°C cure cycle.

6 Unique Process Requirements for Seafood Can Manufacturing

1. Retort Sterilization at 121°C with F₀≥6.0

Virtually all seafood products — tuna, salmon, sardines, mackerel — are classified as low-acid foods (pH >4.6, water activity >0.85) under FDA 21 CFR Part 113. This requires a scheduled thermal process achieving commercial sterility, targeting a 12-decimal reduction (12D) of Clostridium botulinum spores. The minimum reference process is 250°F (121°C) for a duration determined by a qualified Processing Authority, with F₀ values of 6.0–8.0 minutes standard for seafood to build in a safety margin beyond the F₀≥3.0 regulatory floor. The can must withstand this process without seal failure, coating blistering, or paneling — requiring seam thickness of 1.15–1.35 mm, body hook butting (BHB) ≥45%, and coating adhesion of ISO 2409 Class 0–1 after retort.

2. Fat Content 10–25% and Lipid Oxidation Control

Different seafood species present varying fat levels: skipjack tuna 10–20%, Atlantic salmon 15–25%, sardines 10–15%, mackerel 15–25%. During retort, fish fat liquefies and migrates along the can interior, contacting every coated surface. If the internal coating is under-cured or has insufficient cross-link density, fat can penetrate the coating-metal interface, causing delamination, under-film corrosion, and sulfide black staining (FeS). Yongxin lines specify BPA-NI epoxy phenolic coatings at 4–8 g/m² with cure oven profiles validated for 200–210°C and 40–55 second dwell, verified by coating weight measurement (±5%) and MEK double-rub testing.

3. Three Fill Media Compatibility with Quick-Changeover

A single seafood canning line may run oil-packed (olive oil, soybean oil), brine-packed (1–3% NaCl solution), and water-packed products on different days — sometimes different shifts. Each fill medium imposes different corrosion and residue profiles on can-making equipment downstream of the filler. From a can manufacturing perspective, the can itself must be compatible with all three media simultaneously: the coating must resist oil penetration AND salt corrosion AND water immersion. The line must also accommodate changeover between oval tuna, rectangular sardine, and round salmon tooling within 5 minutes per Yongxin’s PLC-controlled can-shape switching system (automatic terminal detection precision ±0.1 mm).

4. Odor-Tight Hermetic Seam

Fish odor is both a product quality issue and a regulatory concern. An inadequate double seam allows volatile fishy compounds (trimethylamine, dimethyl sulfide, aldehydes) to escape, producing detectable odors in warehouses and retail shelves, while also allowing external odors (warehouse chemicals, diesel fumes, cleaning agents) to contaminate the product. Yongxin’s 8-cam 8-roller synchronous seaming head produces a five-layer double seam with seam thickness 1.15–1.35 mm, body hook 1.8–2.2 mm, cover hook 1.8–2.2 mm, and BHB ≥45% — verified by optical seam inspection and pressure decay testing at ≤0.5 mL/min leak rate.

5. Specialty Can Shapes: Oval and Rectangular

Unlike most food categories that use round cans, seafood canning requires oval tuna cans (85×50 mm, 185 g) and rectangular sardine club tins (105×60×30 mm, 125 g). These non-round shapes present specific can-making challenges: corner radius stress during flanging, non-uniform seam pressure distribution at oval/rectangular corners, and specialized die sets for body forming. Yongxin’s small square/rectangular can line (30–35 CPM standard, 45–60 CPM fast) handles diagonal dimensions of 45–280 mm and can heights of 90–350 mm, with the dual-groove flanging mechanism (internal-external groove sheave) specifically engineered to prevent coating micro-cracking at corner apex points. The 8-cam 8-roller seaming head provides synchronized pressure compensation around all corners of rectangular and oval profiles.

6. High Vacuum 50–65 kPa and Residual Oxygen <1%

Seafood is highly susceptible to oxidative rancidity — fish oils rich in omega-3 polyunsaturated fatty acids oxidize rapidly when exposed to oxygen, producing off-flavors and color changes (tuna turning from pink to brown). Seafood cans require headspace vacuum of 50–65 kPa, higher than the 35–50 kPa typical for vegetable cans, combined with nitrogen flushing (200–400 ms injection window) to achieve residual O₂ <1%. This vacuum is created at the seaming station using steam injection or mechanical vacuum evacuation, and the seam must maintain this vacuum through retort, cooling, and 3–5 years of ambient storage. Yongxin’s seaming stations integrate N₂ flushing capability with the CN118025556B synchronous lid feeding mechanism, ensuring lid placement and gas flushing occur within a synchronized 200–400 ms window.

Yongxin Production Line Parameters for Seafood Can Applications

Line Model	Speed (CPM)	Can Shape Capability	Diameter / Diagonal (mm)	Height (mm)	Material Thickness (mm)	Power (kW)	Weight (kg)	Dimensions (mm)	Seafood Application
1–5L Small Round Can Line (Standard)	30–40	Round	Ø 60–180	66–330	0.16–0.4	8	2,700	5,400 × 1,200 × 1,900	Round salmon 400 g, mackerel 200 g, round tuna 185 g
1–5L Small Round Can Line (High-Speed)	60–80	Round	Ø 60–180	65–320	0.16–0.4	12	5,300	7,600 × 1,200 × 1,900	High-volume round tuna, shrimp, catering cans
1–5L Small Square Can Line (Standard)	30–35	Rectangular / Square / Oval (via tooling)	45–280 diagonal	90–350	0.16–0.4	18	2,700	11,750 × 1,500 × 2,400	Sardine rectangular 125 g, oval tuna 185 g
1–5L Small Square Can Line (Fast)	45–60	Rectangular / Square / Oval (via tooling)	45–280 diagonal	90–350	0.16–0.4	45	10,000	12,000 × 2,000 × 2,400	High-volume sardine/tuna oval+rectangular; dual seaming heads
Food Can Sealer (Semi-Auto)	60–80	Round	Ø 52–100	30–124	0.16–0.35	1.5	1,500	2,400 × 1,200 × 1,900	Small tuna 85–100 g, shrimp cans
Food Can Sealer (Auto)	40–60	Round	Ø 86–116	30–120	0.16–0.35	4	1,800	2,600 × 1,500 × 2,100	Medium tuna, sardine round formats
Food Can Sealer (High-Speed)	200–600	Round	Ø 50–100	55–160	0.16–0.35	25	5,300	5,600 × 2,200 × 2,900	Ultra-high-speed tuna/sardine round can sealing

Production Process Flow for Seafood Cans

Yongxin’s seafood can production lines integrate 14 process stations, including 4 seafood-specific stations that address the unique requirements of fish canning:

Station	Process	Seafood-Specific Consideration
1. Sheet feeding	Tinplate sheet loading and registration	ETP #25–#50 preferred; substrate thickness 0.16–0.32 mm for seafood
2. Slitting / shearing	Body blank cutting to dimensions	Oval/rectangular blank geometry for tuna/sardine; ±0.1 mm dimensional accuracy
3. Body forming / rounding	Cylindrical or profile body shaping	Oval die sets for tuna 85×50 mm; rectangular corner-pressing for sardine 105×60 mm
4. Welding	Cu-wire resistance welding, overlap 0.8–1.2 mm	Weld parameters adjusted for ETP; Cu-wire Ø1.38–1.5 mm; 18–40 kVA
5. Internal weld stripe (seafood-specific)	BPA-NI powder/liquid coating on weld zone	Critical for salt+fat environment; 30–80 g/m² local; prevents Cl⁻ pitting and fat under-film migration at weld
6. Cure oven	200–210°C, 40–55 s dwell	Full BPA-NI epoxy phenolic cross-linking; post-retort adhesion ISO 2409 Class 0–1
7. Internal-external dual-groove flanging (seafood-specific)	Precision flange forming with linear-guide template	Corner stress control for oval/rectangular cans; dual-groove sheave prevents coating micro-cracking at corner apex; 2–3× fatigue life
8. Beading	Structural rib formation (3–5 mm ribs × 2–4 per body)	Vacuum resistance for 50–65 kPa internal pressure differential; paneling prevention during retort
9. Curling / lid preparation	Lid edge forming for double seam	Compatible with easy-open ends and conventional lids for seafood
10. N₂-flushed vacuum hermetic seaming (seafood-specific)	8-cam 8-roller double seam + N₂ injection + 50–65 kPa vacuum	Seam 1.15–1.35 mm, BHB ≥45%, residual O₂ <1%; CN118025556B synchronous lid feeding; 200–400 ms N₂ window; prevents protein oxidation and color change
11. Leak test	Pressure decay / water bath	≤0.5 mL/min leak rate; ensures odor-tight integrity
12. Post-seam verification (seafood-specific)	Seam optical gauging + O₂ residual measurement + pressure decay	100% seam dimension inspection; headspace O₂ <1% verification; odor leak screening
13. Curing / cooling	Post-seam stress relief	Controlled cooling to prevent seam relaxation before retort at canner
14. Palletizing / packaging	Can bundling and shipment preparation	Food-grade packaging; cans delivered ready for canner’s filling and retort line

Yongxin Signature Technologies for Seafood Can Applications

8-Cam 8-Roller Synchronous Seaming Head

Yongxin’s proprietary seaming head uses eight cams driving eight rollers in synchronized rotation, applying uniform pressure around the entire circumference of round cans and all four corners of rectangular/oval cans. This is critical for seafood cans because non-round profiles create pressure concentration at corner apex points — a conventional 4-roller head can leave corner seams under-compressed, resulting in fishy odor leakage and retort failure. The 8-cam system delivers seam thickness of 1.15–1.35 mm with ±0.05 mm consistency and BHB ≥45% across all profiles, meeting FDA 21 CFR Part 113 hermetic seal requirements.

Internal-External Dual-Groove Flanging Mechanism

The dual-groove flanging head uses an internal and external groove sheave supported by precision bearings and linear guide templates. For oval tuna cans and rectangular sardine cans, this design distributes flanging stress evenly through corner radii (R3–R8 mm), preventing coating micro-cracks that would expose bare steel to salt and fat during retort. Compared to single-groove flanging, the dual-groove mechanism extends tooling life by 2–3× and reduces corner seam defect rates.

CN118025556B Synchronous Continuous Lid Feeding

Patented in May 2026 (Patent No. CN118025556B), this mechanism synchronizes lid placement with the N₂ flushing window, achieving ±0.1 mm lid positioning accuracy within a 200–400 ms gas injection cycle. For seafood cans requiring 50–65 kPa vacuum and residual O₂ <1%, this precision ensures every can receives consistent nitrogen displacement before the seam closes, directly reducing oxidative rancidity risk and extending shelf life from 2–3 years to 3–5 years.

Online Inspection Methods for Seafood Cans

Inspection Parameter	Method	Acceptance Criterion	Frequency	Seafood Relevance
Seam thickness	Optical seam gauge / micrometer	1.15–1.35 mm	100% in-line	Odor containment, retort integrity
Body hook butting (BHB)	Optical seam projector	≥45%	SPC sampling, 1/hour	Hermetic seal for fishy odor
Seam overlap	Optical / teardown	≥1.0 mm	SPC sampling	Retort pressure resistance
Pressure decay	Dry air leak tester	≤0.5 mL/min	100% in-line	Odor-tight verification
Residual headspace O₂	Fluorescence O₂ analyzer	<1%	Batch sampling	Protein oxidation, color retention
Vacuum level	Vacuum gauge / non-destructive acoustic	50–65 kPa	Batch sampling	Rancidity prevention
Coating continuity	Spark tester (15–25 kV)	Zero pinholes	100% or SPC	Salt/fat corrosion barrier
Coating weight	Gravimetric / XRF	4–8 g/m² ±5%	Per coating batch	Retort adhesion, fat resistance
Coating adhesion	ISO 2409 cross-hatch	Class 0–1 after retort	Per batch	Prevents delamination in 121°C
Fat resistance	4% acetic acid + fat simulant, 48 h at 40°C	No blistering, no delamination	Qualification / annual	Tuna in oil, salmon
Salt spray resistance	5% NaCl, 35°C, 24–72 h	No corrosion at weld or defects	Qualification / quarterly	Brine-packed seafood
Sulfide staining	Post-retort visual inspection	No black FeS staining	Per product trial	Fish protein sulfur reaction
Weld overlap	Optical / caliper	0.8–1.2 mm	SPC sampling	Weld zone integrity
Internal stripe coverage	Optical / spark test at weld	100% coverage, 30–80 g/m²	100% at stripe station	Salt+fat weld protection
Dimensional accuracy	CMM / automatic terminal detection	±0.1 mm	100% in-line	Oval/rectangular can interchangeability

Seafood Can vs. Other Can Types: Multi-Dimensional Comparison

Parameter	Seafood Can	Meat Can	Vegetable Can	Fruit Can	Pet Food Can	Wine Tin	Honey Tin
Structure	Round / Oval / Rectangular	Round / Rectangular	Round	Round	Round	Round (bottle-shape)	Round
Diameter range (mm)	50–153	65–105	65–99	65–99	65–99	60–120	65–180
Primary coating	BPA-NI fat+salt resistant	BPA-NI fat+salt resistant	Acid-resistant BPA-NI	Acid-resistant BPA-NI	Fat-resistant BPA-NI	Alcohol+acid resistant	Acid+osmotic resistant
Coating weight (g/m²)	4–8	4–8	4–6	4–6	4–8	6–10	4–8
Main threat	Fat + salt + odor + retort	Fat + salt + sulfide	Acid + mild retort	Acid + syrup	Fat + retort	Alcohol + acid + O₂	Acid + osmotic + moisture
Retort	121°C, F₀≥6.0	121°C, F₀≥6.0	115–121°C, F₀≥3.0–6.0	100°C pasteurization	121°C, F₀≥6.0	None (cold fill)	None
Vacuum (kPa)	50–65	50–65	35–50	35–50	40–55	N₂ flush only	45–60
Residual O₂	<1%	<1%	<2%	<50 ppb (juice)	<2%	<50 ppb	<1%
BHB requirement	≥45%	≥50%	≥45%	≥45%	≥45%	≥45%	≥45%
Shelf life	3–5 years	3–5 years	2–3 years	12–24 months	2–3 years	12–24 months	24–36 months
Sulfide staining risk	High	High	Low–Medium	None	High	None	None
Odor containment	Critical	Moderate	Low	Low	Moderate	Moderate (bouquet)	Low
Typical CPM range	30–80 (standard); 200–600 (high-speed sealer)	30–60	30–60	30–80	30–60	30–60	30–80
Shape changeover	Oval/rect/round tooling	Rect/round	Round only	Round only	Round only	Round only	Round only
Fill media changeover	Oil/brine/water (3 types)	Brine/gel	Brine/syrup	Syrup/water	Gravy/jelly	Wine only	Honey only

Global Seafood Canning Market Data

Overall Market Size and Growth

Source	2025/2026 Market Size	Forecast	CAGR	Key Detail
The Business Research Company	USD 37.0B (2025) → USD 39.11B (2026)	USD 50.77B by 2030	5.7% (2025–26); 6.7% (2026–30)	Europe largest share 2025; South America fastest-growing
Fortune Business Insights	USD 57.69B (2025) → USD 61.02B (2026)	USD 97.23B by 2034	6.00% (2026–34)	APAC 55.43% share; tuna 34.12%; retail 67.15%
Mordor Intelligence	USD 31.5B (2025) → USD 33.3B (2026)	USD 43.98B by 2031	5.72% (2026–31)	Tuna 52.62% share; shrimp fastest-growing at 6.23%
Future Market Insights	USD 36.1B (2025) → USD 37.4B (2026)	USD 52.7B by 2036	3.5% (2026–36)	South Korea 3.8% and EU 3.7% fastest-growing

Note: Variations in published market sizes reflect differences in scope (factory-gate vs. retail value, inclusion of retort pouches, species coverage, and base year alignment). All sources confirm sustained growth in the canned seafood sector through 2030–2036.

Tuna Segment

Canned tuna is the dominant species segment, accounting for 34–53% of the global canned seafood market depending on source methodology. According to Mordor Intelligence, canned tuna maintains a 52.62% market share in 2025. The United States consumes approximately 1 billion cans of tuna per year, with the U.S. market projected at USD 5.54 billion in 2026 (Fortune Business Insights).

Major tuna canning producers and exporters:

Company	Headquarters	Revenue / Scale	Key Brands
Thai Union Group	Bangkok, Thailand	THB 138.4B (~USD 3.97B), FY2024	Chicken of the Sea, John West, King Oscar, Petit Navire, Mareblu, Genova
Century Pacific Food Inc.	Pasig City, Philippines	PHP 75.49B (~USD 1.30B), FY2024	Century Tuna, 555, Ligo, Mega Sardines
Bolton Group	Milan, Italy	€3.2B group revenue (2022)	Rio Mare, Saupiquet, Isabel, Wild Planet, Tri Marine
Bumble Bee Foods	San Diego, USA	Private (major US brand)	Bumble Bee, Brunswick, Snow’s
Grupo Calvo	Madrid, Spain	Vertically integrated	Calvo, Nostromo, Gomes da Costa

Thailand is the world’s largest canned tuna exporter, with Thai Union alone processing over 100,000 tonnes annually. Ecuador has rapidly expanded its tuna canning industry, with MSC-labelled tuna production nearly doubling in recent years (MSC Sustainable Tuna Yearbook 2024). Spain is the largest EU consumer and processor of canned tuna, with companies like Calvo and Bolton/Isabel dominating the European market.

Sardine Segment

Morocco is the world’s largest sardine catcher, accounting for 57% of global sardine landings (1.236 million tonnes in 2023), followed by Mauritania (24%) and the EU (12%), according to FAO data cited by the European Market Observatory for Fisheries and Aquaculture Products (EUMOFA). EU production of canned sardines, sardinella, and sprat totaled 87,847 tonnes in 2023, with Spain, Portugal, and France as the primary producers. Morocco supplied 91% of extra-EU sardine imports in 2024 (45,674 tonnes).

The global canned sardines in tomato sauce market was valued at USD 2.95 billion in 2025, with oval cans accounting for 46.1% of tin type share (P Market Research). Major sardine producers include Conservas Ramirez (Portugal), Pinhais/Nuri (Portugal), Grupo Calvo (Spain), King Oscar (Thai Union, Norway/Poland), and Unimer Group (Morocco, MAD 570M H1 2024 revenue).

Sustainable Seafood and MSC Certification

Sustainability has become a defining market driver. According to the Marine Stewardship Council (MSC):

Global wild tuna catch reached 5.9 million tonnes in 2022
Over 57% of global wild tuna catch is now MSC certified or under assessment
More than 300,000 tonnes of MSC-labelled tuna were sold in 2024/25, a 24% increase year-over-year
MSC-labelled tuna is available in 63 countries
182 fisheries are engaged in the MSC programme, harvesting 53% of the global tuna catch
Pole-and-line fishing represents 8% of global tuna catches but 28% of North Pacific albacore and 19% of Indian Ocean skipjack
Seven MSC-certified pole-and-line tuna fisheries operate worldwide
Dolphin-safe certification (Earth Island Institute) confirms no intentional dolphin interaction, while MSC provides broader ecosystem assessment including bycatch, stock health, and management effectiveness

For can manufacturers, sustainability trends translate into demand for BPA-NI coatings, lighter-weight tinplate (reducing material carbon footprint), and steel can recyclability rates of 82–92% — significantly higher than PET (55%), aluminum (70%), or glass (74%).

Regional Seafood Canning Industry and Equipment Demand

Southeast Asia

Southeast Asia is the epicenter of global tuna canning. Thailand is the world’s largest canned tuna exporter, home to Thai Union Group (USD 3.97B revenue) and numerous other processors. The Philippines ranks second in the region, with Century Pacific Food (USD 1.30B revenue) producing Century Tuna, 555, and Mega Sardines brands. Indonesia hosts significant tuna canning clusters in Bitung and Muncar, North Sulawesi. Vietnam has emerging tuna and seafood processing capacity, with Ben Tre known for coconut and seafood canning. Yongxin has already delivered 3 production lines to Thailand and 2 lines to Vietnam, with established commissioning and after-sales support infrastructure in the region. The small round can high-speed line (60–80 CPM) and small square can fast line (45–60 CPM) are particularly suited to the high-volume tuna and sardine canning operations in this region.

Latin America

Ecuador has emerged as one of the world’s fastest-growing canned tuna exporters, with MSC-labelled tuna production nearly doubling and significant investment in canning capacity. Brazil hosts Grupo Calvo’s Gomes da Costa operations and a large domestic seafood market. Chile and Peru have significant pelagic fishing industries (mackerel, sardines) supporting canning operations. The region’s demand centers on 30–60 CPM round can lines for tuna and mackerel, with increasing interest in rectangular sardine can capability.

Europe

Europe remains the largest regional market for canned seafood by value share. Spain is the EU’s largest producer and consumer, with a deep-rooted conservas tradition and companies like Grupo Calvo, Conservas Garavilla, and Real Conservera Española. Portugal is renowned for premium artisanal sardines (Ramirez, Pinhais/Nuri, Bela-Olhão), with canned sardine production increasing 22% since 2014. France hosts Saupiquet (Bolton Group) and Connétable. Norway supplies King Oscar brisling sardines (now owned by Thai Union). Italy is home to Rio Mare (Bolton), Europe’s largest MSC-labelled tuna brand. European canners require EU Regulation 10/2011 and EU 2018/213 BPA-NI compliance, premium coating systems (gold enamel for gourmet lines), and oval/rectangular can capability for traditional sardine and tuna formats.

North America

The U.S. is the world’s largest single-country canned seafood market by retail value, projected at USD 5.54 billion in 2026 (Fortune Business Insights). Canned tuna is the second most consumed seafood product in the U.S. after shrimp, with approximately 1 billion cans consumed annually. Major brands include StarKist, Bumble Bee, Chicken of the Sea (Thai Union), and Wild Planet (Bolton Group). U.S. canners and importers must comply with FDA 21 CFR Part 113 (LACF), FDA 21 CFR Part 123 (Seafood HACCP), and FDA 21 CFR 175.300 (food-contact coatings). The high-speed food can sealer (200–600 CPM) is designed for the volume requirements of North American tuna and sardine operations.

Middle East and Africa

Morocco is the world’s largest sardine exporter by volume, with Unimer Group (Casablanca Stock Exchange: UMR) serving as the country’s primary sardine and anchovy exporter (~97% of sales outside Morocco). South Africa’s Oceana Group (JSE: OCE) produces Lucky Star canned pilchards, a dominant brand for nearly 70 years. The Middle East represents a growing market for shelf-stable protein, with Saudi Arabia and the UAE importing significant volumes of canned tuna and sardines. Yongxin has delivered 1 production line to Saudi Arabia and supports customers across the MEA region.

PLC Automation, Energy Consumption, and Maintenance

PLC Control Architecture

Yongxin seafood can production lines use a multi-tier PLC architecture:

Layer	Component	Typical Selection	Function
Controller	Main PLC	Siemens S7-1200/1500 or Mitsubishi FX/Q series	Line sequencing, recipe management, alarm handling
Motion	Servo drives	Delta or Yaskawa	Can transfer, flanging, seaming synchronization
HMI	Touch screen	10–15 inch color HMI	CPM monitoring, parameter setting, fault diagnostics
Pneumatics	Cylinders and valves	SMC or Airtac	Can clamping, lid placement, diverting gates
Sensors	Photoelectric, proximity, pressure	Omron, Sick, Keyence	Can detection, jam protection, position verification
VFD	Variable frequency drives	Delta or ABB	Speed regulation; energy savings >30% vs. fixed-speed
Communication	Fieldbus / OPC UA	PROFINET / EtherNet/IP	Data logging, remote diagnostics, MES integration
Remote support	VPN gateway	IPsec / OpenVPN	Yongxin engineers can diagnose and adjust parameters remotely

Energy Consumption Matrix

Line Configuration	Installed Power (kW)	Daily Consumption (kWh, 8 h)	Annual Consumption (kWh, 300 days)
Small Round Can Line (30–40 CPM)	8	64	19,200
Small Round Can High-Speed (60–80 CPM)	12	96	28,800
Small Square Can Line (30–35 CPM)	18	144	43,200
Small Square Can Fast (45–60 CPM)	45	360	108,000
Food Can Sealer High-Speed (200–600 CPM)	25	200	60,000

VFD-driven motors reduce energy consumption by more than 30% compared to fixed-speed systems. The PLC-controlled air reservoir (standard on the small round can line) automatically regulates pressure, reducing compressed air waste. Timed automatic lubrication systems minimize friction losses.

Preventive Maintenance Schedule

Interval	Task
Daily	Clean seaming rollers, inspect seam dimensions, check air pressure, verify sensor alignment, empty condensate traps
Weekly	Lubricate bearings and cam followers, inspect Cu-wire feed on welder, check stripe coating flow, calibrate optical sensors
Monthly	Inspect flanging die wear, verify cure oven temperature profile (thermocouple), check VFD parameters, inspect conveyor chains
Quarterly	Replace worn seaming rollers/chucks (as needed), full teardown seam inspection, coating continuity spark test calibration, gearbox oil level check
Annually	Complete line overhaul, replace worn bearings and seals, PLC program backup and update, NIST-traceable instrument calibration, structural bolt torque check

Procurement Path and Price Matrix

Three-Stage Procurement Guide

Stage	Buyer Profile	Recommended Configuration	Budget Range (FOB Shanghai/Ningbo)	Lead Time
Entry	SME canner, new market entrant, 15–25 CPM target	Small Round Can Line (30–40 CPM) + Food Can Sealer (Semi-Auto 60–80 CPM) + basic tooling	USD 40,000–90,000	60–90 days
Growth	Established canner, 30–60 CPM, oval+round capability	Small Square Can Line (30–35 CPM) + Small Round High-Speed (60–80 CPM) + stripe station + N₂ seaming + SPC inspection	USD 130,000–300,000	75–120 days
Scale	High-volume exporter, 60+ CPM, full shape range	Small Square Fast Line (45–60 CPM) + Food Can Sealer High-Speed (200–600 CPM) + full QA suite + MES integration	USD 400,000–800,000+	90–150 days

Configuration Price Reference

Configuration	Approximate FOB Price (USD)
1–5L Small Round Can Line, 30–40 CPM, standard	40,000–65,000
1–5L Small Round Can Line, 60–80 CPM, high-speed	70,000–110,000
1–5L Small Square Can Line, 30–35 CPM, standard	80,000–130,000
1–5L Small Square Can Fast Line, 45–60 CPM	180,000–280,000
Food Can Sealer, semi-auto, 60–80 CPM	8,000–18,000
Food Can Sealer, auto, 40–60 CPM	15,000–30,000
Food Can Sealer, high-speed, 200–600 CPM	80,000–150,000
Internal stripe coating station (add-on)	12,000–25,000
N₂ flushing + vacuum seaming upgrade	8,000–18,000
Optical seam inspection system	15,000–35,000
Oval/rectangular tooling changeover kit	5,000–15,000 per can size

Payment terms: 30% deposit with order, 30% before shipment, 30% against bill of lading, 10% after commissioning and acceptance (30-30-30-10). Warranty: 12 months from commissioning or 18 months from shipment, whichever comes first. Lifetime technical training and maintenance support is included with every line. Spare parts air-freighted within 3–7 days.

Yongxin Delivery Process

Enquiry and consultation (Day 0): Share can specifications, substrate, CPM target, and automation requirements
Design freeze (Day 15–30): Engineering drawings, layout, tooling specifications confirmed
Manufacturing (Day 30–90): In-house fabrication, assembly, and wiring at Jiujiang factory
Factory Acceptance Test (FAT) (Day 85–90): Customer or third-party inspection at Yongxin facility, 3–5 days
Shipment (Day 90–135): Sea freight from Shanghai/Ningbo, 18–45 days depending on destination
On-site commissioning (Day 135–156): Yongxin engineers on-site for 7–21 days installation, training, and trial production

Sustainability Advantages of Seafood Cans

Steel Can Recyclability

Tinplate and TFS seafood cans achieve recycling rates of 82–92% globally, compared to PET plastic at 55%, aluminum at 70%, and glass at 74%. Steel is the most recycled packaging material in Europe and North America by tonnage. A seafood can placed in a recycling bin can be back on a supermarket shelf as a new can in as little as 60 days.

Carbon Footprint Reduction

Weight advantage: An empty 185 g tuna can weighs 25–35 g, versus 250–400 g for an equivalent glass jar — a 70–85% weight reduction that cuts transport emissions by 30–50%
No cold chain required: Canned seafood is shelf-stable at ambient temperature for 3–5 years, eliminating refrigerated transport and storage that accounts for 25–40% of emissions in chilled/frozen seafood supply chains
Material efficiency: Three-piece welded can construction uses 15–25% less metal per unit volume than two-piece drawn cans for equivalent sizes
PPWR alignment: The EU Packaging and Packaging Waste Regulation targets 70% recycling of metal packaging by 2030 — seafood steel cans already meet or exceed this threshold

Sustainable Sourcing Alignment

Seafood canners increasingly seek MSC, dolphin-safe, and pole-and-line certification. The can itself supports these sustainability claims through:
– BPA-NI coatings that meet EU 2018/213 and FDA food-contact standards
– Printable QR codes and batch numbers for full ocean-to-shelf traceability
– Infinite recyclability without quality degradation (steel can be recycled repeatedly without loss of properties)
– Lightweighting trends (0.16–0.20 mm tinplate for small tuna cans) reducing material use per can

Yongxin’s equipment supports lightweight tinplate (0.16 mm minimum) through precision welding (overlap 0.8–1.0 mm for thin gauges) and optimized flanging that prevents wrinkling and tearing in thin material.

Frequently Asked Questions

Q: What makes seafood can making equipment different from general food can machinery?

A: Seafood cans require five simultaneous capabilities not found in standard food can lines: (1) BPA-NI coatings that resist both fat (10–25%) and salt (1–3% NaCl) through 121°C retort; (2) weld stripe application to protect the Cu-wire weld zone from chloride pitting and lipid penetration; (3) N₂-flushed vacuum seaming at 50–65 kPa with residual O₂ <1% to prevent omega-3 oxidation; (4) odor-tight double seams at 1.15–1.35 mm with BHB ≥45%; and (5) tooling for oval (tuna 85×50 mm) and rectangular (sardine 105×60×30 mm) can shapes. Yongxin’s small square can line and small round can line are configured to meet all five requirements.

Q: What F₀ value is required for canned seafood under FDA regulations?

A: Under FDA 21 CFR Part 113, the minimum F₀ for commercially sterile low-acid canned foods is 3.0 minutes at 121°C. However, seafood products are typically processed to F₀ 6.0–8.0 minutes to build a safety margin above the regulatory floor and to achieve the 12D reduction of Clostridium botulinum spores. The exact F₀ must be established by a qualified Processing Authority based on can size, product formulation, fill temperature, and retort configuration. Yongxin equipment produces cans that maintain seam and coating integrity through these extended retort cycles.

Q: Can the same production line handle both round and oval seafood cans?

A: Yes. Yongxin’s small square/rectangular can line (30–35 CPM standard or 45–60 CPM fast) handles diagonal dimensions of 45–280 mm and can heights of 90–350 mm, accommodating rectangular sardine club tins (105×60×30 mm) and oval tuna cans (85×50 mm) through interchangeable tooling kits. The PLC-controlled can-shape switching system completes changeovers within 5 minutes with automatic terminal detection at ±0.1 mm precision. Round salmon and mackerel cans run on the small round can line (30–80 CPM, Ø 60–180 mm).

Q: What coating system should be used for tuna cans in oil?

A: BPA-NI epoxy phenolic coating at 4–8 g/m², cured at 180–210°C for 40–55 seconds, is the standard for oil-packed tuna. This coating provides excellent resistance to lipid penetration and chloride corrosion through 121°C retort, with post-retort adhesion of ISO 2409 Class 0–1. Internal weld stripe (30–80 g/m² BPA-NI powder or liquid) must be applied to the weld overlap zone. For premium salmon or gourmet sardines, gold enamel (epoxy-amino) at 6–10 g/m² provides sulfide stain masking in addition to fat and salt resistance.

Q: How does Yongxin ensure odor-tight seams for seafood cans?

A: Three mechanisms work together: (1) the 8-cam 8-roller synchronous seaming head applies uniform pressure around round, oval, and rectangular can profiles, producing a five-layer double seam at 1.15–1.35 mm thickness with BHB ≥45%; (2) 100% in-line pressure decay testing rejects any can with leak rate >0.5 mL/min; and (3) optical seam gauging verifies body hook, cover hook, overlap, and tightness on every can. This triple-layer approach prevents fishy odor (trimethylamine, dimethyl sulfide) escape and external odor contamination.

Q: What is the production speed for seafood can lines?

A: Yongxin offers seafood can production lines at multiple speed tiers: 30–40 CPM (small round standard), 60–80 CPM (small round high-speed), 30–35 CPM (small square/rectangular standard), 45–60 CPM (small square/rectangular fast with dual seaming heads), and 200–600 CPM (dedicated high-speed food can sealer for round tuna/sardine formats). Actual throughput depends on can size, substrate gauge, coating cure requirements, and automation level. At 75% OEE, a 60 CPM line produces approximately 64.8 million cans per year on a three-shift, 300-day schedule.

Q: Does Yongxin equipment comply with FDA 21 CFR Part 113 and EU 10/2011?

A: Yes. Yongxin can production lines produce containers that meet the hermetic seal and dimensional requirements of FDA 21 CFR Part 113 (thermally processed low-acid foods) and support compliance with EU Regulation 10/2011 (food-contact materials) when used with BPA-NI coatings from qualified suppliers. Yongxin holds ISO 9001:2015 certification (Cert. No. 107325Q1009R0S). The canner is responsible for establishing the scheduled process with a Processing Authority and validating the full fill-seal-retort system, but Yongxin equipment provides the seam integrity, coating cure, and dimensional consistency that these regulations require.

Q: What vacuum level and residual oxygen are needed for seafood cans?

A: Seafood cans require headspace vacuum of 50–65 kPa, higher than the 35–50 kPa typical for vegetable cans, to prevent oxidative rancidity of fish oils rich in omega-3 fatty acids. Residual headspace oxygen should be <1%, achieved through steam injection or mechanical vacuum evacuation combined with nitrogen flushing (200–400 ms injection window). Yongxin’s seaming stations integrate N₂ flushing with the CN118025556B synchronous lid feeding mechanism to ensure consistent gas displacement before seam closure.

Q: How quickly can the line change between oil-packed, brine-packed, and water-packed seafood?

A: From a can-making equipment perspective, the cans produced for oil, brine, and water packs are mechanically identical — the same BPA-NI epoxy phenolic coating resists all three fill media. Changeover between fill media occurs at the canner’s filling operation, not on the can-making line. Changeover between can shapes (round salmon to oval tuna to rectangular sardine) takes approximately 5 minutes on Yongxin’s PLC-controlled lines, with tooling kit swaps and automatic parameter recall from HMI recipe storage.

Q: What is the price of a seafood can production line?

A: Entry-level configurations start at approximately USD 40,000–90,000 for a small round can line (30–40 CPM) with a semi-automatic food can sealer. Growth-scale configurations range from USD 130,000–300,000, adding rectangular/oval capability, stripe coating, N₂ flushing, and SPC inspection. Scale-level installations with high-speed lines (45–60 CPM rectangular, 200–600 CPM round sealer), full QA suites, and MES integration range from USD 400,000–800,000+. All prices are FOB Shanghai/Ningbo. Contact our engineering team for a detailed quotation based on your specific can dimensions and production targets.

Q: What lead time should I expect from order to commissioning?

A: Standard lead time is 60–90 days from order to factory completion, followed by sea freight of 18–45 days and on-site commissioning of 7–21 days. Total timeline from order to production is typically 90–156 days depending on destination and customization level. A Factory Acceptance Test (FAT) at Yongxin’s Jiujiang facility is conducted 3–5 days before shipment. Rush delivery may be available for standard configurations — please enquire for current scheduling.

Q: Which countries has Yongxin supplied can-making equipment to?

A: Yongxin has delivered production lines to customers in Thailand (3 lines), Vietnam (2 lines), India (1 line), and Saudi Arabia (1 line), with additional equipment installations and inquiries across Southeast Asia, the Middle East, Africa, South America, and Europe. The company holds import and export trade qualifications and ships FOB from Shanghai or Ningbo. Yongxin’s 47-person team provides remote diagnostics via VPN gateway, video-guided troubleshooting, and on-site commissioning for bulk orders.

Q: Can Yongxin lines handle BPA-NI (BPA-free) coatings required by EU regulations?

A: Yes. Yongxin’s internal coating and stripe stations are designed for BPA-NI (BPA-non-intent) coating systems including epoxy phenolic, vinyl organosol, and polyester formulations. The cure oven maintains precise temperature profiles (180–220°C, 40–60 second dwell) to ensure proper cross-linking of BPA-NI coatings. Yongxin equipment supports compliance with EU Regulation 2018/213 (BPA restriction, SML 0.05 mg/kg for infant foods) and FDA 21 CFR 175.300. Coating material selection and qualification should be conducted with your coating supplier and a Processing Authority.