OTC DAIHEN FD-B4S 7-Axis Redundant Freedom Welding Robot
The OTC DAIHEN FD-B4S is a revolutionary 7-axis redundant freedom articulated welding robot designed for intricate manufacturing environments. By adding a 7th ‘rotational elbow’ axis to the standard 6-axis geometry, the FD-B4S achieves unprecedented spatial dexterity. This redundant degree of freedom enables the robot to alter its upper arm posture around clamps, fixtures, and workpiece overhangs while maintaining the welding torch Tool Center Point (TCP) and approach angle absolutely motionless. With a compact 189 kg footprint and a 4 kg payload, it is the master of high-precision welding in electronics, medical equipment, and dense automotive sub-assemblies.
⚙️ Core Mechanical & Electrical Technical Specifications
| Specification Parameter | Unit | OEM Technical Data | |
|---|---|---|---|
| Robot Model / Axis Count | – | FD-B4S / Vertical Articulated 7-Axis | |
| Arm Payload / Upper Arm Extra Payload | kg | 4.0 kg (Wrist) / 10.0 kg (Upper Arm) | |
| Repeatability (ISO 9283 TCP) | mm | ±0.08 | |
| Total Drive Capacity / Drive Method | W / – | 3550 W / AC Servo Motor | |
| 7-Axis Motion Range & Max. Speed |
Axis J1 (Base Rotation) | ° / (°/s) | ±170° / Max. Speed 210°/s |
| Axis J2 (Lower Arm Forward/Backward) | ° / (°/s) | -145° ~ +70° / Max. Speed 210°/s | |
| Axis J7 (Redundant Elbow Rotation) | ° / (°/s) | ±90° / Max. Speed 180°/s | |
| Axis J3 (Upper Arm Up/Down) | ° / (°/s) | -170° ~ +142.6° / Max. Speed 210°/s | |
| Axis J4 (Wrist Roll) | ° / (°/s) | ±155° / Max. Speed 420°/s | |
| Axis J5 (Wrist Pitch/Bend) | ° / (°/s) | -45° ~ +225° / Max. Speed 420°/s | |
| Axis J6 (Wrist Twist) | ° / (°/s) | ±205° / Max. Speed 600°/s | |
| Total Weight / Working Area Cross-Section | kg / m² | 189.0 kg / 2.57 m² | |
🔧 Engineering & Integration Guide
- Obstacle Avoidance Programming: Utilize the teach pendant’s redundant axis control mode to ‘sweep’ the robot elbow away from fixture clamps while keeping the torch tip locked onto the weld joint.
- Cell Density Optimization: The 7-axis design allows multiple robots to be mounted in extremely close proximity without arm-to-arm collisions, maximizing production output per square meter.
- Maintenance of Axis 7: Ensure routine grease inspection and backlash checks are performed on the redundant 7th axis drive train to preserve the robot’s rated ±0.08 mm TCP repeatability.
📞 Contact for Global B2B Pricing & Technical Support
Anhui Oujie Automation Technology Co., Ltd. is your authorized supplier for genuine OTC DAIHEN industrial welding robots and automated arc welding cells. We guarantee 100% authentic equipment for your production lines.
⚡ Fast global shipping. Genuine guarantee. Professional automation support included.
