800mm · 5kg Micro Spot Welder — Micro Spot Welding Machine for Plastic Column Thermal Riveting

Product overview

This micro spot welder combines a 5kg adjustable force actuator and a high‑precision transistor power supply to perform thermal riveting and micro‑spot welding on plastic columns and small components. The system supports programmable weld recipes, adjustable pulse width/current and optional weld monitoring. Compact and easy to integrate, it suits bench cells and inline automation.

Problem → Cause → Solution

Problem: Plastic column riveting and delicate part joining often cause part deformation, inconsistent joint strength or visible marks when heat or force is not well controlled.
Cause: Excessive or poorly timed energy, uncontrolled electrode force, and inappropriate electrode geometry lead to overheating, material collapse or inconsistent bonds.
Solution: This system applies precise pulse shaping, short pulse resolution, and controlled 5kg actuator force to deliver the exact energy needed for thermal riveting while preserving part integrity. Validate profiles in pilot runs and store recipes for production.

Technical Specifications

Applications

• Plastic column thermal riveting for LEDs, small connectors and plastic housings—secure rivet bonds without visible deformation.
• Lightweight housing assembly where low force and precise heat control prevent part distortion.
• Micro‑assembly tasks that require long travel for accessing multiple points along a rail or panel.

How it works 

Recipe selection: load material preset or create custom profile (current, pulse width, force, number of pulses).
Position & contact: head moves to weld location across 800 mm travel and actuator applies controlled force.
Pulse delivery: transistor power supply delivers shaped pulse(s) per profile.
Cooling & monitoring: optional cooling limits heat accumulation and weld monitoring logs profiles for QA.

How to choose 

Required reach: confirm 200mm travel meets your cell layout and point spacing needs; consider head mounting orientation.
Force needs: 5kg max is suitable for delicate plastic riveting—if heavier compression is needed, choose higher‑force variants.
Pulse control: for plastic riveting prefer short, staged pulses rather than long continuous energy to avoid melting.
Electrode geometry: select flat or crowned electrodes per rivet size and material to distribute force and heat.
Throughput: compare cycle time including head travel and electrode return to your takt time requirements.

Installation & maintenance

Installation: mount on bench or integrate into automation frame; connect grounded power, compressed air (if actuator pneumatic), and optional cooling. Ensure ESD and grounding measures for sensitive components.
Commissioning: perform a material matrix (material × thickness × electrode geometry × pulse profile) to validate recipes.
Maintenance: inspect and dress electrode surfaces weekly under heavy use; replace worn tips and verify actuator calibration monthly.

FAQ

Q: Is 5kg force enough for plastic column riveting?
A: For most thin plastic columns and delicate housings, 5 kg provides sufficient contact for effective thermal riveting while minimizing deformation. For heavier compression needs, consult Mingseal for high‑force variants.
Q: Can the head reach multiple weld points along a panel?
A: Yes—the 800 mm travel enables the head to index across a rail or panel to perform multiple rivets without repositioning the part.
Q: Does the system support weld monitoring and data logging?
A: Yes—optional weld monitoring records current/voltage traces and batch logs for SPC and traceability.

Contact Us

For reliable, fast, and consistent plastic post thermal riveting, the DW200P offers an ideal balance of performance and efficiency.
Contact us now to see how the DW200P can simplify your plastic assembly line and help you meet high-volume production targets with confidence.