Automatic Battery Pack Spot Welding Machine Overview
COENG's automatic battery pack spot welding machine is engineered for nickel strip welding on cylindrical battery assemblies. It supports 18650, 21700, 26650 and 32650 cell formats, with fixtures matched to each pack layout. The system is suited to e-bike, scooter and other cylindrical lithium battery pack production projects.
The 5000A inverter DC welding power supply is standard, with an optional 8000A configuration selected according to the welding process. Preheat and main-weld settings, configurable current limits and abnormal-current alarms help operators establish and monitor the welding process. Electrode selection and welding settings should be validated with actual cell and strip samples.
A touchscreen interface supports manual input, array programming and CAD drawing import. Up to 99 program groups can be stored for repeat jobs, and fixture A/B welding programs can be switched to suit the production sequence. The positioning fixture, resistance welding head and linear guide assembly support programmed weld locations.
Standard X/Y travel is 500/400 mm and can be customized. Stepper drive is listed as standard, with optional servo and screw-drive configuration. Input supply is AC 220V ±10%, 50Hz; required air pressure is 0.4–0.7 MPa. The machine measures 900 × 900 × 1650 mm and weighs 200 kg.
For equipment importers, battery pack manufacturers and production-line integrators: share the cell format, pack drawing, strip material and thickness, weld-point layout and target output to request a COENG battery pack spot welding equipment quotation with a project-specific fixture and power-source proposal.
Technical Specifications
| Parameter |
Specification |
| Welding process | Automatic resistance spot welding; inverter DC |
| Compatible cell formats | 18650 / 21700 / 26650 / 32650; fixture and application matching required |
| Welding current | 5000A standard; 8000A optional |
| Input supply | AC 220V ±10%, 50Hz |
| X-axis travel | 500 mm; customizable |
| Y-axis travel | 400 mm; customizable |
| Programming | Manual input / array programming / CAD drawing import |
| Stored program groups | Up to 99 |
| Fixture program selection | A/B welding program switching |
| Drive configuration | Stepper + precision linear guide as listed; optional servo + screw drive |
| Air pressure | 0.4–0.7 MPa |
| Dimensions | 900 × 900 × 1650 mm |
| Weight | 200 kg |
Features for Project Buyers
- Process configuration: Standard 5000A inverter DC welding with an optional 8000A configuration.
- Program flexibility: Manual input, array programming and CAD drawing import.
- Repeat-job setup: Storage for up to 99 program groups and fixture A/B program selection.
- Tooling review: Fixture selection based on cylindrical cell size, cell spacing and pack geometry.
- Application review: Power source, electrode and weld settings assessed against actual strip and cell samples.
Frequently Asked Questions
Which cylindrical cells can the machine support?
The supplied specification lists 18650, 21700, 26650 and 32650 formats. Fixture design and weld-point access must be checked against the actual pack layout.
Is the 8000A welding power source standard?
No. The supplied description identifies 5000A inverter DC as the standard configuration and 8000A as an option.
How are welding programs created?
The interface supports manual input, array programming and CAD drawing import, with storage for up to 99 program groups.
Does A/B program switching mean automatic battery-pack turning?
It refers to switching the fixture's A-side and B-side welding programs. A physical turning mechanism is not specified in the supplied materials.
What nickel strip thickness can be welded?
The supplied specification does not state a qualified thickness range. Provide the strip material, coating, thickness, cell terminal details and weld-quality requirements for sample validation.
What information is needed for a quotation?
Share the cell format, pack dimensions or drawing, cell spacing, strip material and thickness, weld-point count, required output and local utility conditions.
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