Overview
Resistance spot welding joins overlapping sheets by passing high current through two electrodes. Robots carry the weld gun to each spot with consistent position, pressure and timing.
We build stand-alone spot-welding stations and multi-robot lines with fixtures, part feeding, gun changers, tip dressers and quality monitoring.
How It Works
- Fixtures locate the sheet-metal parts
- The robot moves the servo gun to each spot programmed from CAD data
- The weld controller manages current, time and force
- Tip dressing keeps electrode quality stable
- Monitoring flags spots that fall outside limits
What's Included in the System
- High-payload robot (typically 100 kg and up, gun-dependent)
- Servo weld gun and weld timer
- Tip dresser and gun changer
- Fixtures and part clamps
- Water cooling and utilities
- Safety guarding
Benefits
- Consistent spot position and quality
- High throughput for repeated patterns
- Traceability of every weld
- Reduced operator fatigue
Industry Facts & Standards
- Typical arc-on time is about 15-25% for manual welding and about 60-80% for a robotic cell, which is where most of the productivity gain comes from
- Reported output increases from robotic cells are typically in the range of two to four times
- Seam tracking and touch sensing let the robot follow real part variation instead of an ideal CAD line
- Quality documentation is built in: welding current, voltage and speed can be logged for every part
- Standards and safety: ISO 10218-1/-2 (robot safety), ISO 3834 (quality requirements for fusion welding), ISO 15614 / AWS D1.1 (procedure qualification, per customer spec).
- Figures are typical ranges from public industry sources, not Zhiyan project results.
What We Need to Prepare a Quotation
Please send us the following and we will reply with a proposal:
- Sheet material and thickness stack-up
- Number of spots per part and cycle time target
- Gun weight and force
- Is the part fixture or gun-on-robot preferred?
Robot Brands We Integrate for This Application
Frequently Asked Questions
Which robots are used for spot welding?
High-payload robots from KUKA, FANUC and Yaskawa are all commonly used.
Can you retrofit an existing spot-welding line?
Yes. See our retrofit, relocation and leasing services.