KOZA-KZH-CR625LW Collaborative Laser Welding Robot
Built on the KOZA-KZH-CR625-2000 collaborative arm: 6 axes, 25 kg payload, 2000 mm reach, ±0.05 mm repeatability, IP54. Supports hand-guiding and simple guided teaching, with high-speed / collaborative dual modes and collision protection. Paired with a 3000 W fiber laser and KOZA seam finding/tracking for shop-floor laser welding.
Highlights
- Hand-guide / simple teaching: drag-to-teach and simplified process packages lower the learning curve.
- Industrial + collaborative dual mode: high-speed mode for weld cycle time; collaborative mode for safer, lower-power operation.
- Long reach, high payload: 2000 mm reach and 25 kg payload for mid-to-large workpieces.
- Integrated laser process: set laser power and weld parameters on the teach pendant; optional remote start scheduling.
- Seam finding / tracking: KOZA-QT260T laser seam finder for automatic path correction under assembly variation and thermal distortion.
Arm specifications (same as KOZA-KZH-CR625-2000)
| Item | Value |
|---|
| Model | KOZA-KZH-CR625LW |
| Series | KZH-CR collaborative laser welding robot |
| Axes | 6 |
| Payload | 25 kg |
| Reach | 2000 mm |
| Repeatability | ±0.05 mm |
| Protection | IP54 (arm and cabinet) |
| Modes | High-speed / human-robot collaborative |
| Programming | Hand-guiding, simple guided teaching, handheld teach pendant |
| Safety | Collision detection; stops quickly under external force |
Laser welding system
- Control: KOZA GRC integrated drive cabinet with bus-based multi-axis coordination; built-in KOZA laser welding process package.
- Seam finding / tracking: KOZA-QT260T (size 116×72×42 mm; optimal standoff 250 mm; depth of field 185–380 mm; longitudinal resolution 0.1–0.16 mm; min detectable height 0.8 mm; FOV width 55–112 mm; lateral resolution 0.03–0.06 mm; min detectable width 0.5 mm; 30 Hz standard; supply 9–36 V).
- Laser source: Single-mode CW fiber laser, water-cooled, max welding output 3000 W.
- Laser head: Robot laser welding head, max 3000 W, dual oscillation, water-cooled; spot size 0.2–5.0 mm; anti-collision with ±0.1 mm reset accuracy.
- Wire feeder: Single-pull automatic feeder with touchscreen, torch-front mount; motor, conduit, tip and spool stand.
- Other: Matching 3000 W laser chiller, integrated cabinet and robot pedestal.
Application notes (summary)
- Weld zone must be clean—free of oil, rust, scale, paint or coatings that disturb laser reflection.
- Butt-joint gap ≤ 0.2 mm; fillet root gap kept reasonable with continuous, sharp seam edges.
- Fixtures must hold assembly accuracy; thermal distortion should be controlled.
- Prefer straight, arc or gentle-curve paths; complex 3D curves or line-of-sight obstruction need on-site evaluation.
