Tinplate Can Seaming Machine, frequently referred to as double seam sealers or metal can crimpers, acts as indispensable core gear within the metal packaging manufacturing workflow. Its main function lies in hermetically sealing different container styles, covering tinplate vessels, aluminum tins as well as composite paper cans with round, oval or square outlines. The unit relies on precision rolling components to fold and interlock the rim of metal lids with the flange of can bodies; the proprietary dual crimping technique forms an airtight bonded seam, offering reliable barrier protection for all contents held inside the packaging.
This category of can sealing gear sees extensive deployment for metal container packaging across multiple commercial sectors. Typical applicable fields span preserved food cans, drink tins, milk powder containers, medicinal packaging and industrial chemical storage vessels. To satisfy varied preservation standards for diverse goods, optional functional modules like vacuum extraction and nitrogen filling can be fitted onto the machines. Such add-ons drastically slow oxidation and microbial growth, greatly prolonging the shelf life of finished packaged goods.

General Specifications
| Parameter Name | Technical Specification Range |
| Applicable Can Shapes | Round, square, oval, horseshoe-shaped, etc. |
| Applicable Materials | Tinplate, aluminum alloy, plastic, paper |
| Seaming Speed | 12–150 cans/min (depending on model) |
| Applicable Can Diameter | φ30–φ280 mm (round cans); max. 330 mm diagonal/circumscribed circle (irregular cans) |
| Applicable Can Height | 25–420 mm |
| Power Supply | 220V/380V, 50/60Hz |
| Air Supply Pressure | 0.4–0.6 MPa (pneumatic models) |
Exact size range: diameter, height of round cans; diagonal size of square/oval/irregular tins;
Can material: tinplate, aluminum, composite paper or plastic cans (different materials require customized seaming rollers);
Regular size switching frequency: if you frequently produce multiple can sizes, choose models with quick-change mold structure to cut downtime.
Small-batch workshop, laboratory: semi-automatic low-speed machines (12–30 cans/min) with lower investment cost;
Medium-volume food factories: standard fully automatic models (20–50 cans/min);
Large-scale mass production plants: high-speed rotary seaming equipment (100–150 cans/min);
For fragile liquid/powder products: prioritize servo non-rotating can machines even with moderate speed for intact packaging.
Food, milk powder, snacks: optional vacuum pumping and nitrogen filling functions to extend shelf life;
Explosive chemical coatings: request explosion-proof motor and electrical components;
High hygiene standards (pharmacy, baby food): ask for full SUS304 stainless steel contact parts complying with GMP.
Double-seam four-roller structure is standard for stable sealing; avoid cheap single-roller machines prone to air leakage;
Ask suppliers for service life data: irregular can models should guarantee 500,000+ cans of stable sealing;
Request seam sample test before order, verify no wrinkling, loose edges or leakage after sealing.
Confirm local voltage and frequency (220V/380V, 50Hz or 60Hz) to customize control cabinet;
Pneumatic models require stable air pressure of 0.4–0.6 MPa; buyers without air compressors need to add supporting air equipment into the quotation.
PLC touch screen with storable production parameters;
Lid shortage alarm, anti-jam emergency stop, lid-can linkage protection and auto-shutdown device;
Overload protection to prevent mold damage during abnormal operation.
Confirm warranty period of main body and wearing parts (seaming rollers, pressure head molds);
Clarify supply cycle of spare parts and overseas remote technical support (video debugging, operation manual in English);
For overseas factories, negotiate on-site installation training service or detailed video operation tutorials.
Measure workshop space to confirm machine overall dimension and conveying line layout;
Match with upstream filling machines and downstream labeling/carton packing equipment; inform suppliers of your existing production line model for seamless connection design.

The tinplate can seaming machine is a core piece of industrial packaging equipment specially designed for airtight sealing of metal tin cans. Widely adopted in food, beverage, pharmaceutical, chemical, and daily commodity industries, it performs precision double-seam crimping between can bodies and metal lids to create fully sealed, leak-proof, and dust-proof packaging. Unlike traditional rotating-can sealing devices, this machine features an advanced non-rotating can structure, in which the can remains completely stationary while the seaming rollers rotate to complete the sealing process. This innovative design effectively prevents internal materials from spilling, extruding, or deforming during operation, making it highly suitable for fragile contents such as liquids, fine powders, granular products, and puffed foods. To accommodate diverse production scales, the machine series covers multiple automation configurations, including semi-automatic, standard fully automatic, high-speed automatic, and servo precision models. The standard fully automatic version delivers a working efficiency of 20 to 50 cans per minute, while the high-speed model reaches 100 to 150 cans per minute, which is two to three times more efficient than conventional semi-automatic equipment. The servo high-speed model ensures stable and precise sealing at a maximum speed of 50 cans per minute, balancing high productivity and accurate processing for high-end production scenarios.

This tinplate can seaming machine boasts exceptional compatibility and reliable sealing quality, covering mainstream and special-shaped tin can packaging demands. For standard round cans, it supports diameters ranging from 30mm to 280mm and heights from 25mm to 360mm, with fast size switching realized by simply replacing pressure head molds and accessories, greatly reducing production downtime and improving line flexibility. In addition to round cans, customized models are available for square, oval, and other irregularly shaped cans, solving the sealing difficulties of special-specification metal packaging. Adopting a professional double-sealing principle with four sealing rollers working synchronously, the equipment forms a tight five-layer interlocked seam with uniform pressure and smooth molding, completely avoiding common defects such as loose seams, wrinkling, and air leakage. The irregular can seaming version maintains a stable service life of 500,000 to 600,000 sealing cycles, and all finished seams fully comply with international packaging safety standards, ensuring long-term airtightness, sterilization resistance, and storage stability of packaged products.
Equipped with intelligent control and comprehensive safety protection systems, the tinplate can seaming machine realizes automated, safe, and low-maintenance industrial operation. It adopts mature PLC programming control and intuitive touchscreen operation, supporting preset parameter storage and one-click switching for different can specifications, which simplifies operation requirements and reduces manual error. Multiple professional safety mechanisms are integrated into the equipment, including a lid linkage device that ensures lids are only supplied with matched can bodies, an anti-jamming emergency stop system, a lid shortage alarm, and automatic shutdown protection. These functions effectively avoid equipment failure, material waste, and operational risks during continuous high-speed production. Manufactured with food-grade stainless steel material at product contact parts, the machine is easy to clean, free of sanitary dead corners, and compliant with GMP production standards. With stable mechanical structure, wear-resistant core components, and low failure rate, it perfectly adapts to long-term continuous operation in factory production lines, serving as an ideal sealing solution for standardized, high-efficiency, and safe tinplate can packaging across various industries.
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