Small Square Can Making Line 30-35 CPM: Yongxin’s Precision Tinplate Packaging Solution
1-5L Capacity | PLC + Servo Control | 5-Layer Double Seaming | 86 Patents | National High-Tech Enterprise
Introduction
For packaging manufacturers seeking a reliable small square can making line 30-35 CPM from China, Jiujiang Yongxin Can Equipment Co., Ltd. delivers 21 years of specialized expertise in automated tinplate square can manufacturing equipment. With 86 patents and a 47-person professional R&D team, Yongxin’s small square can production line achieves 30–35 cans per minute for 1–5L rectangular and square containers — integrating body forming, expanding, flanging, and precision 5-layer double seaming in a fully automated process. As a National High-Tech Enterprise based in Jiujiang, Jiangxi, the company provides direct-from-factory pricing and lifetime technical support to buyers across Southeast Asia, the Middle East, Africa, and South America.
Industry & Market Analysis
The global square tin can market is experiencing steady growth, with the market for metal square and rectangular packaging valued at approximately USD 4.27 billion in 2024 and projected to exceed USD 5.13 billion by 2026 at a CAGR of 6.2%, according to the China Packaging Federation and Mintel’s 2025 Global Metal Packaging Industry Report. In Asia, the growth rate reaches 8.1%, significantly above the global average, driven by food, tea, chemical, and gift tin packaging demand. Square cans offer superior shelf-space efficiency — occupying up to 20% more volume per pallet compared to round cans — making them the preferred format for retail packaging of tea, biscuits, confectionery, and promotional gift items. The shift toward automated production is accelerating: manufacturers with fully automated lines achieve 15–20% lower unit production costs compared to semi-automatic operations. This trend creates strong demand for the small square can making line 30-35 CPM, where Chinese manufacturers like Yongxin offer compelling cost-performance advantages with direct-from-factory pricing and complete customization.
Company Profile
Jiujiang Yongxin Can Equipment Co., Ltd. (九江市永信制罐设备有限公司) was founded in July 2005 and has accumulated 21 years of focused R&D and manufacturing experience in the can-making equipment sector. The company holds National High-Tech Enterprise certification (recertified October 2025, certificate GR202536000972), Jiangxi Provincial “Specialized & Sophisticated” SME status, and National Tech SME qualification. With a 47-person professional team including senior mechanical R&D engineers, 86 patents, and 6 software copyrights, Yongxin operates from its facility at No. 005 Antai Road, Auto Industrial Park, Jiujiang Economic & Technological Development Zone (GPS: 29.6782°N, 115.9234°E). The company is qualified for import and export trade, providing complete customized can production line solutions from can body forming to can lid precision mold making for international clients.
Products & Solutions: Small Square Can Making Line 30-35 CPM
Yongxin’s small square can making line 30-35 CPM is a fully automated production system designed for 1–5L rectangular and square tinplate containers. The line adopts modular design and integrates automatic indexing, square expanding, flanging, lid feeding, seaming, and leak testing into a continuous process controlled by PLC and servo motors.
Technical Specifications
| Parameter | Specification |
|---|---|
| Production Capacity | 30–35 CPM |
| Can Capacity Range | 1–5L |
| Can Diagonal Range | 50–190mm |
| Can Height Range | 80–350mm |
| Material | Tinplate (T2.5–T3 temper) |
| Material Thickness | 0.2–0.35mm |
| Control System | PLC + 7-inch touch screen + servo motor |
| Seaming Technology | 5-layer precision double seaming |
| Total Power | Approx. 70 kW |
| Floor Space | Approx. 200 m² (line length approx. 25m) |
| Manpower | 4–5 operators |
| Voltage | 3-phase 380V/50Hz (configurable for different countries) |
Production Process Flow
The small square can making line 30-35 CPM integrates the following automated stages:
- Sheet Shearing — Precision cutting of tinplate coils to body and lid blanks
- Rounding — Rolling flat blanks into cylindrical form for welding
- Resistance Welding — Automatic side seam welding with seam detection
- Outer Coating — Protective coating over weld seam to prevent corrosion
- Square Expanding — Servo-controlled expanding mold transforms round body into square form
- Flanging — Upper and lower flanging for lid attachment, using grooved pulley system for uniform results
- Bottom Lid Feeding & Seaming — Pneumatic suction lid feeding + 5-layer double seaming
- Reversing — Can body turnover for top lid processing
- Top Lid Feeding & Seaming — Same precision seaming process for top end
- Leak Testing — Automatic pressure testing to verify seal integrity
- Packaging — Conveying to packaging station
Square Can Seaming Technology
Square can seaming presents unique challenges compared to round cans — the corners require precise roll engagement to maintain seal integrity. Yongxin’s automatic can seaming machines for square containers feature:
- 4-roll and 6-roll configurations — 4-roll for standard 1–5L cans, 6-roll for enhanced corner coverage
- 5-layer double seaming — Hermetic seal meeting international packaging standards
- Servo-controlled seaming rolls — Programmable pressure and timing for consistent seam quality
- Automatic lid feeding — Pneumatic suction system for reliable lid placement
Application Industries
The small square can making line 30-35 CPM serves multiple packaging sectors:
| Application | Can Sizes | Typical Products |
|---|---|---|
| Tea Packaging | 1–5L | Loose leaf tea, compressed tea bricks |
| Food & Confectionery | 1–5L | Biscuits, candies, cookies, dried fruits |
| Chemical Cans | 1–5L | Thinner, solvent, adhesive containers |
| Gift Tins | 1–5L | Promotional packaging, holiday gift sets |
| Edible Oil | 1–5L | Cooking oil, flavored oil containers |
Service & Support
Yongxin provides comprehensive after-sales support for the square can production line:
- Installation & Commissioning: 48-hour on-site service for domestic clients; for international orders, remote video guidance and on-site commissioning for bulk orders
- Technical Training: Lifetime operator and maintenance training included with every production line
- Maintenance Support: Lifetime maintenance support with fast response from local service teams
- Spare Parts: Standard spare parts package included; custom parts manufactured and shipped within 15 working days
- Export Qualifications: Import & export trade qualified; CE-compatible electrical configurations available; documentation support for customs clearance
FAQ
Q: What is the production speed of the small square can making line?
A: The standard small square can making line 30-35 CPM operates at 30–35 cans per minute, depending on can size and material thickness. For higher output requirements, Yongxin also offers configuration upgrades with enhanced servo systems.
Q: What can sizes can this production line handle?
A: The line covers 1–5L square and rectangular cans with a diagonal range of 50–190mm and height range of 80–350mm. Changeover between can sizes requires mold replacement, typically completed within 2–4 hours.
Q: Can the production line be customized for specific applications?
A: Yes. As a manufacturer with 86 patents and 21 years of experience, Yongxin provides full customization — including can dimensions, seaming configurations (4-roll or 6-roll), coating options, and control system preferences. Custom can manufacturing equipment solutions are engineered based on buyer specifications.
Q: What is the difference between 4-roll and 6-roll square can seamers?
A: 4-roll seamers use two seaming operations (1st and 2nd roll) and are suitable for standard 1–5L square cans. 6-roll seamers add an extra pair of rolls for enhanced corner coverage, recommended for cans requiring higher seal integrity or using thicker tinplate.
Q: Does Yongxin provide installation and training for international buyers?
A: Yes. Yongxin offers remote video guidance for standard installations and on-site commissioning for bulk orders. Lifetime operator and maintenance training is included with every production line purchase.
Q: Is Yongxin qualified for international export?
A: Yes. The company holds import & export trade qualification, National High-Tech Enterprise certification, and provides CE-compatible electrical configurations. Full documentation for customs clearance and compliance is available.
Q: What materials are compatible with this production line?
A: The line processes tinplate (T2.5–T3 temper) with thickness range of 0.2–0.35mm, which covers the standard material specifications for 1–5L square can manufacturing across food, tea, chemical, and gift packaging applications.
Q: How does the small square can making line compare to a semi-automatic line?
A: The fully automated line at 30-35 CPM requires only 4-5 operators versus 8-12 for a semi-automatic setup, reducing labor costs by approximately 50-60%. Automated quality control (seam detection, leak testing) also reduces rejection rates significantly compared to manual inspection.
Conclusion
The small square can making line 30-35 CPM from Jiujiang Yongxin Can Equipment Co., Ltd. represents a proven, cost-effective solution for manufacturers entering or expanding in the square tinplate packaging market. With 21 years of industry experience, 86 patents, PLC + servo motor control, and 5-layer precision double seaming, the line delivers consistent production quality at competitive direct-from-factory pricing. For custom can production line solutions tailored to your specific can dimensions and production requirements, contact Yongxin’s engineering team at +86 13607928672 or visit canmachine.org/contact-us/ to request a detailed quotation and technical proposal.