Battery Laser Welding Machine – Welding machine for square and pouch batteries

PPCELL battery laser welding machine (Model P-LMG) is a high-precision fiber laser welding system designed for lithium battery manufacturing. Supporting 1500W–6000W power options, it delivers ±0.05mm positioning accuracy and 10–100mm/s welding speed for tab welding, busbar welding, sealing, and injection port applications. Ideal for prismatic and pouch cell assembly lines.

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Laser Welding  Machine Product Overview

PPCELL battery laser welding machine (Model P-LMG) is a high-performance gantry-type fiber laser welding system engineered for the demanding requirements of lithium-ion battery manufacturing. Serving the lithium battery industry, this equipment processes prismatic and pouch cells for EV battery packs, energy storage systems, and consumer electronics. The machine is used across multiple critical welding applications in battery assembly – including tab welding, busbar welding, explosion-proof valve welding, sealing, and injection port welding.

The system features a rigid gantry-type motion structure with precision guide rails and high-response servo motors, delivering ±0.05mm positioning accuracy and ±0.01mm repeat positioning accuracy. With welding speeds of 10–100mm/s and optional CCD vision positioning (0.01mm accuracy), the P-LMG ensures consistent, high-quality welds for high-volume production environments.

Key Features

  • Flexible Welding Capability – Supports point, line, circular, and arbitrary planar geometric trajectory welding, accommodating diverse battery assembly requirements.

  • Wide Application Coverage – Suitable for tab welding, nickel-to-copper transition welding, busbar welding, explosion-proof valve welding,壳体 sealing welding, and injection port welding for prismatic and pouch cells.

  • Gantry-Type Motion Structure – Large-format working range with precision guide rail transmission and high-response servo motors ensures high speed and accuracy.

  • High-Performance Fiber Laser – Designed with advanced fiber laser technology specifically optimized for highly reflective materials (aluminum, copper). Features high beam quality (<1.4 m²), high photoelectric conversion efficiency, and low operating costs.

  • Superior Weld Quality – Fine weld spots, high penetration depth, minimal taper, and smooth, bubble-free weld surfaces. Low heat input minimizes thermal distortion and deformation.

  • User-Friendly Control – PC-based industrial computer with welding CNC programming system. Intuitive software is easy to learn and operate.

  • Adjustable Power & Low Maintenance – Laser power adjustable from 10–100%. Low power consumption and maintenance-free daily operation reduce operating costs.

  • Automatic Clamping Welding Device – Integrated automatic top-clamping welding mechanism reduces fixturing requirements and improves process stability.

  • Optional Upgrades – Supports CCD vision positioning system and automatic focal length measurement for enhanced precision and automation.

Laser Welding  Machine Technical Specifications

ParameterSpecification
Laser Power (Optional)1500W / 2000W / 3000W / 4000W / 6000W
Laser Wavelength1080 nm
Power Adjustable Range10 – 100%
Welding Speed10 – 100 mm/s
Frequency Adjustment Range30 – 5000 Hz
Positioning Accuracy±0.05 mm
Repeat Positioning Accuracy±0.01 mm
Quick Positioning SpeedXY axis: 1000 mm/s; Z axis: 500 mm/s
Fiber Core Diameter20 μm / 50 μm / 100 μm (application-dependent)
Operating ModeContinuous / Modulated
Beam Quality (M²)<1.4
Laser Output ModeCW / PWM
Power Stability≤±3%
Focusing Focal LengthF=180 mm
CCD Positioning Accuracy (Optional)0.01 mm
Max Processing Size800×600 mm / 1000×800 mm
Welding Range (X-axis)800 mm / 1000 mm
Welding Range (Y-axis)600 mm / 800 mm
Welding Range (Z-axis)400 mm
Overall Dimensions (L×W×H)1200×1400×2000 mm / 1400×1600×2000 mm
Machine Weight<900 kg
Ambient Temperature5 – 45°C
Cooling SystemExternal water chiller
Power Consumption3.5kW (2000W) / 5.5kW (3000W) / 8kW (4000W) / 10kW (6000W)
Power Supply380V / 50Hz

FAQ

Q1: What battery components can this laser welding machine weld?

A: The P-LMG supports a wide range of battery welding applications including tab welding, busbar welding, explosion-proof valve welding,壳体 sealing welding, and injection port welding for prismatic and pouch cells. It is also suitable for nickel-to-copper transition welding in cylindrical cell assembly.

Q2: What materials can this machine weld?

A: The fiber laser is specifically optimized for highly reflective materials such as aluminum and copper, which are commonly used in battery busbars and tabs. It also supports steel, nickel, and other metals commonly found in battery components.

Q3: What is the advantage of fiber laser technology for battery welding?

A: Fiber lasers offer high beam quality (<1.4 m²), high photoelectric conversion efficiency, low operating costs, and maintenance-free daily operation. They deliver fine weld spots, high penetration depth, and smooth, bubble-free weld surfaces with minimal heat-affected zones – critical for sensitive battery components.

Q4: Can the machine be integrated with vision systems for automated alignment?

A: Yes. The P-LMG supports optional CCD vision positioning system with 0.01mm accuracy and automatic focal length measurement for enhanced precision and automated alignment.

Q5: What is the typical welding speed and accuracy?

A: The machine delivers welding speeds of 10–100mm/s with ±0.05mm positioning accuracy and ±0.01mm repeat positioning accuracy. Quick positioning speed reaches 1000mm/s on XY axes and 500mm/s on Z axis.

Q6: What are the available laser power options?

A: The P-LMG is available in 1500W, 2000W, 3000W, 4000W, and 6000W configurations, allowing customers to select the optimal power level for their specific welding applications and material thicknesses.

Q7: What cooling system is required?

A: The system requires an external water chiller for cooling. Power consumption varies by laser power: 3.5kW for 2000W models, 5.5kW for 3000W, 8kW for 4000W, and 10kW for 6000W models.

Q8: Does this machine support automated production line integration?

A: Yes. The gantry-type motion structure with industrial PC control and optional vision systems enables seamless integration into automated battery assembly lines for high-volume production.

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