Yongxin 21-Year Manufacturer | 15-60 CPM Output | 0.25-20L Can Range | 86 Patents | Export to 20+ Countries
For manufacturers sourcing a 3 piece can making machine from China, Jiujiang Yongxin Can Equipment Co., Ltd. (九江市永信制罐设备有限公司) supplies complete three-piece tinplate can production lines ranging from 0.25L food cans to 20L industrial pails. Founded in 2005 with 21 years of dedicated can-making equipment R&D, Yongxin operates a 47-person engineering team, holds 86 patents plus 6 software copyrights, and delivers turnkey lines with output speeds from 15 to 60 cans per minute (CPM). Our 3-piece can production lines are built for round, square, F-style, and oval can formats used across paint, lubricant, chemical, food, and aerosol packaging.
What Is a 3 Piece Can Making Machine?
A three-piece can consists of three separate tinplate components joined together: a rolled and welded can body, a seamed bottom lid, and a top lid (or open-top rim ready for filling). A 3 piece can making machine is the sequenced production line that converts flat tinplate sheets into finished cans through cutting, forming, welding, flanging, necking, and seaming stages.
Unlike two-piece drawn cans (limited to shallow round shapes), three-piece cans support:
- Any diameter from 52 mm to 300 mm (0.25L to 20L capacity)
- Multiple can shapes: round, square, rectangular, oval, F-style pail
- Higher can heights up to 460 mm without wall thinning
- Lower tooling cost — a single line can produce dozens of can sizes with mold changes
This flexibility makes three-piece can technology the preferred choice for small- and mid-volume metal packaging producers across paint, lubricant, chemical, edible oil, food, and specialty industries.
3 Piece vs 2 Piece: Which Process Fits Your Product?
| Factor | 3 Piece Can Making | 2 Piece (Draw & Iron) |
|---|---|---|
| Can shapes supported | Round, square, oval, F-style, rectangular | Round only (shallow) |
| Diameter range | 52-300 mm | Typically 50-100 mm |
| Height range | Up to 460 mm | Limited (aspect ratio) |
| Tooling investment | Lower — single line, multiple molds | Very high per SKU |
| Best for | Paint, lubricant, chemical, aerosol, gift tins | Beverage, food only |
| Line output (CPM) | 15-60 CPM (Yongxin range) | 200-1500 CPM |
| Wall thickness | 0.16-0.42 mm tinplate | Thinned during draw |
| Changeover time | 5-30 minutes | Hours |
For manufacturers targeting industrial packaging (0.25-20L), the 3 piece can making machine offers the best balance of flexibility, capital cost, and per-unit economics. This is the same equipment class covered in our recent guides on the paint can making machine and the lubricant bucket production line.
Complete 3 Piece Can Production Workflow
Yongxin three-piece lines integrate 10 sequential process stages. Each stage is controlled by PLC + servo motors with in-line sensors for jam detection and quality checks.
Stage 1: Sheet Shearing (Slitting)
Flat tinplate sheets (max 1050×1300 mm, thickness 0.16-0.45 mm) enter an automatic slitting machine. Yongxin’s automatic slitter runs 20-24 sheets/minute with 8 cutter modules producing precisely sized can body blanks.
Stage 2: Printing & Coating (Optional Upstream)
For decorated cans, blanks are pre-printed with 4-6 color lithography and coated with food-grade or industrial lacquer before entering the can-making line. Yongxin’s line accepts pre-printed sheets from any standard tinplate printing press.
Stage 3: Slitting to Body Blank
Slit strips are further cut into individual body blanks matched to the target can height (65-460 mm).
Stage 4: Body Rolling (Rounding)
The rounding machine curves the flat blank into a cylinder, positioning the seam edges precisely for welding.
Stage 5: Seam Welding (Resistance Welding)
Yongxin’s resistance welder produces a lap-welded side seam with 0.8-1.2 mm overlap. Copper wire diameter is 1.35-1.7 mm. Large-can welders output 20-60 cans/min at 125 KVA; small-can welders output 20-40 cans/min at 18 KVA. This is the most critical joint in a 3 piece can — a compliant can welding machine determines final leak-tightness.
Stage 6: Seam Coating (Optional)
Inner and outer weld seams are lacquer-sprayed and cured to prevent corrosion — essential for chemical, edible oil, and food applications.
Stage 7: Flanging
The flanger rolls both ends of the welded body outward to create a lip that will mate with the top and bottom lids. Yongxin’s flangers use dual-groove cams and precision bearings for consistent flange dimensions.
Stage 8: Beading (Ribbing)
For pails 5L and above, a beading (ribbing) machine impresses reinforcement rings on the can body wall to prevent buckling during filling, stacking, and transport. Yongxin’s automatic beading machine handles diameters 60-300 mm at up to 40-60 CPM.
Stage 9: Necking (For Necked Cans)
Aerosol and specialty formats require diameter reduction at the top. A necker gradually reduces the top opening for compatibility with valve or spout closures.
Stage 10: Bottom Seaming
The seamer double-seams the bottom lid to the flanged body using a controlled roll-forming process. Yongxin’s can seaming machine options include 0.25-5L small round seamers, 10-20L large round seamers, and 4-roll/6-roll square can automatic seamers.
Stage 11: Leak Testing
Every finished can body passes an air pressure leak tester before palletizing. Failed units are auto-ejected.
Key Machines in a 3 Piece Can Making Line
| Machine | Function | Yongxin Speed Range |
|---|---|---|
| Automatic slitter | Cut tinplate sheets into strips | 20-24 sheets/min |
| Rounding machine | Curl blank into cylinder | Matched to line |
| Body maker (welder) | Weld side seam | 20-100 cans/min |
| Flanger | Curl top/bottom lips outward | 15-30 CPM |
| Beader | Add reinforcement ribs | 15-60 CPM |
| Necker | Reduce top diameter | 15-30 CPM |
| Bottom seamer | Double-seam bottom lid | 15-32 CPM |
| Leak tester | Verify seam integrity | Matched to line |
About Jiujiang Yongxin Can Equipment Co., Ltd.
| 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 |
| Certifications | National High-Tech Enterprise | Jiangxi Provincial “Specialized & Sophisticated” SME | National Tech SME | 2024 Tax Credit Grade A |
| Intellectual Property | 86 patents + 6 software copyrights |
| Team | 47-person team including senior mechanical R&D engineers |
| Core Products | 3 piece can making machines (15-60 CPM) | Can seaming machines | Can lid production lines | Specialty sealers |
| 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, Middle East, Africa, South America, Europe — 20+ countries |
Yongxin operates under National High-Tech Enterprise certification and holds import & export trade qualification. Since 2005, our engineering team has delivered turnkey can production line projects to paint, lubricant, chemical, and food packaging manufacturers across four continents.
Yongxin YX-Series 3 Piece Can Line Specifications
The table below summarizes production lines available for three-piece can manufacturing, drawn from Yongxin’s 2026 catalog. All values are exact factory specifications.
| Model / Series | Can Range | Capacity | Speed (CPM) | Power (kW) | Line Length (mm) | Weight (kg) |
|---|---|---|---|---|---|---|
| Small round can fast line | Ø60-180 mm × 65-320 mm | 1-5L | 60-80 | 12 | 7,600 | 5,300 |
| Small round can standard line | Ø60-180 mm × 66-330 mm | 1-5L | 30-40 | 8 | 5,400 | 2,700 |
| Small square can fast line | Diagonal 45-280 mm × 90-350 mm | 1-5L | 45-60 | 45 | 12,000 | 10,000 |
| Small square can standard line | Diagonal 45-280 mm × 90-350 mm | 1-5L | 30-35 | 18 | 11,750 | 2,700 |
| Large square can line | Diagonal 45-320 mm × 210-410 mm | 10-20L | 25-32 | 55 | 15,000 | 17,750 |
| Large round can line | Ø210-300 mm × 170-460 mm | 10-25L | 25-30 | — | 8,470 | 9,500 |
Material compatibility: All lines process 0.16-0.42 mm tinplate, TFS (tin-free steel), or chrome-plated steel sheet.
Common configuration: Delta servo motors + PLC + touchscreen HMI, imported sensors, SMC/Airtac pneumatics, cam-driven can transfer with long-can protection, dual-groove cam flangers with linear guide templates, 8-cam-8-roller seamers, high-strength folded sheet-metal conveyors.
Applications & Can Formats Supported
Three-piece can lines from Yongxin support the following can formats and end-use industries:
Can shapes:
- Round cans (Ø52-300 mm)
- Square/rectangular cans (diagonal 45-320 mm)
- F-style pails (rectangular with pouring spout, 1-5L)
- Oval cans (custom tooling)
- Necked-top cans (aerosol format)
Industries served:
- Paint & coatings: 1L, 4L, 5L, 15L, 20L round and F-style — see our paint can making machine coverage
- Lubricants & motor oil: 1L, 4L, 5L round and rectangular; 15L, 20L pails — covered in the lubricant bucket production line guide
- Industrial chemicals: solvents, adhesives, resins (10-20L square/round)
- Edible oil: 1-5L rectangular F-style tins
- Food: general tinned foods, tea tins, gift boxes
- Aerosol: necked cans for automotive, personal care, industrial spray products
Regional Application Cases
- Bangladesh: multiple lubricant packaging producers (including MJL, Omera, Padma, Jamuna, Meghna in the wider market) require 1-20L three-piece cans for the domestic and export lubricant sector
- Southeast Asia: Thailand (3 lines delivered), Vietnam (2 lines delivered) — large square can lines for paint and chemical packaging
- Middle East: Saudi Arabia (1 line delivered) — 10-20L square can line for lubricant packaging
- South Asia: India (1 line delivered) — 10-20L square can line
- Europe: Greece and Turkey — 3-piece round/rectangular paint can lines for architectural coatings producers
Domestic customers of Yongxin’s large square can line include Hangzhou Yintie Can Factory (2 lines), Bengbu Jintaiyang Can Factory, Wuxi Huayuan Can Manufacturing, Henan Xihua Can, Qingdao Wangsheng Can, Yichang Huaguan Can, and Guangdong Huizhou Tianyi Can.
Line Selection Reference
| Your Product | Recommended Line | Speed |
|---|---|---|
| Small paint cans (1-5L round) | Small round can fast/standard line | 30-80 CPM |
| Paint gallon cans (1-5L square/F-style) | Small square can fast/standard line | 30-60 CPM |
| Lubricant bottles (1-5L) | Small square can standard line | 30-35 CPM |
| Chemical pails (10-20L round) | Large round can line | 25-30 CPM |
| Lubricant/oil pails (10-20L square) | Large square can line | 25-32 CPM |
| Flower buckets / open-top pails | Large round can line | 25-30 CPM |
| Food cans (0.25-5L round) | Small round can line + food seamer | 30-80 CPM |
Pricing, Lead Time & Delivery
- Price range: A complete 3 piece can making line starts from approximately USD 80,000 for single-size small round can lines and scales with capacity, can range flexibility, and automation level. Turnkey 10-20L large square can lines with full automation typically fall in the USD 200,000-400,000 range depending on options.
- Lead time: 60-90 days from order confirmation for standard configurations; 90-120 days for fully customized lines with multiple can-size tooling.
- Delivery: FOB Shanghai/Ningbo; sea freight to global ports. Yongxin holds import & export trade qualification and manages all customs paperwork.
- Installation: Domestic 48-hour on-site commissioning; international projects staffed by traveling engineers with video-remote support during pre-installation.
Contact our engineering team for a detailed quotation → +86 13607928672 (Mr. Li, General Manager) / +86-792-8503969.
Service, Warranty & Support
Yongxin provides:
- Free technical consultation and can design review
- Complete tooling and mold sets (base configuration + optional expansion molds)
- 48-hour domestic installation & commissioning
- International commissioning by traveling engineers for bulk orders
- Lifetime technical training (on-site and video-based)
- Lifetime maintenance support with fast local team response
- Remote troubleshooting via video call for international clients
- Spare parts stock with air freight availability
FAQ
Q: What is a 3 piece can making machine?
A: A 3 piece can making machine is a coordinated production line that manufactures metal cans from three separate tinplate pieces — a rolled and welded can body, a bottom lid, and a top lid. The line performs shearing, rounding, seam welding, flanging, beading, necking, seaming, and leak testing in sequence. Yongxin’s three-piece lines cover 0.25L to 20L capacity at 15-60 CPM.
Q: What is the difference between 3 piece and 2 piece can making?
A: 3 piece cans are assembled from a welded body plus separate top and bottom lids, supporting round, square, oval, and F-style shapes across 0.25-20L capacity with lower tooling cost. 2 piece cans are drawn from a single blank into a body-plus-bottom unit — limited to round shapes and typically used only for beverage and small food cans. For paint, lubricant, chemical, and industrial packaging, 3 piece technology is standard.
Q: What can sizes and shapes can Yongxin’s 3 piece line produce?
A: Yongxin lines produce round cans (Ø52-300 mm), square/rectangular cans (diagonal 45-320 mm), F-style pails, oval cans, and necked aerosol cans. Can heights range from 30 mm up to 460 mm. Capacity spans 0.25L food cans up to 20L industrial pails. Multiple can sizes can be produced on the same line with 5-30 minute changeover.
Q: What is the production speed of a Yongxin 3 piece can line?
A: Speed depends on can size and line configuration. Small round can fast lines reach 60-80 CPM; small square can fast lines reach 45-60 CPM; small round can standard lines run at 30-40 CPM; large square can lines run at 25-32 CPM for 10-20L pails; large round can lines run at 25-30 CPM.
Q: How much does a 3 piece can making machine cost?
A: Pricing depends on line capacity, automation level, and can range. Small round can lines start from approximately USD 80,000. Fully automatic large square can lines (10-20L) with complete tooling typically fall in the USD 200,000-400,000 range. Contact Yongxin’s engineering team with your can specifications, target capacity, and material for a detailed quotation.
Q: What is the lead time and does Yongxin support international installation?
A: Standard lead time is 60-90 days from order confirmation; fully customized lines take 90-120 days. Yongxin holds import & export trade qualification and has delivered lines to Thailand, Vietnam, India, Saudi Arabia, and other markets. International installation is provided by traveling engineers, and remote video-guided commissioning is available for all clients.
Q: What tinplate thickness can the line process?
A: Yongxin 3 piece can lines process tinplate, tin-free steel (TFS), and chrome-plated steel from 0.16 mm to 0.42 mm depending on the model. Small round can lines handle 0.16-0.4 mm; large square and round can lines handle 0.20-0.42 mm suitable for 10-20L industrial pails.
Q: Does Yongxin manufacture the can welding machine, seamer, and other components in-house?
A: Yes. Yongxin manufactures the complete line in-house at our Jiujiang factory, including the welder (both large-can 125 KVA and small-can 18 KVA versions), flanger, beader, necker, and can seamer. This vertical integration ensures compatible tolerances across all stages and simplifies after-sales support with single-source parts availability.
Closing: Sourcing a 3 Piece Can Making Machine from China
Yongxin brings 21 years of specialized 3 piece can making machine engineering, 86 patents, and export experience across four continents to buyers evaluating Chinese suppliers. Whether your project is a 1L paint can line for architectural coatings, a 5L F-style pail line for lubricants, or a 20L square pail line for industrial chemicals, Yongxin engineers can configure a turnkey line matched to your production volume, can-size portfolio, and factory footprint.
Contact our engineering team for a detailed quotation, factory visit invitation, or technical consultation → +86 13607928672 (Mr. Li, General Manager) / +86-792-8503969 / [email protected]. Learn more about our 3-piece can production lines, full machine catalog, and application industries.
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