AII-B4L Parts List | OTC Daihen Robot

OTC Daihen AII-B4L (A2-B4L) Welding Robot – Complete Parts Breakdown

This page provides a detailed reference for the OTC AII-B4L robot exploded view. The AII-B4L is the long-arm version of the popular AII-B4 model, widely used in arc welding automation. Below is a breakdown of parts by joint axis, referencing the exploded diagram above.

1. J1 Axis (Base Axis)

• ① AC Servo Motor – Part No. W-L02150

• ② RV Reducer – Part No. W-L02116

• ③ Grease – Part No. 100-0624

2. J2 Axis

• ④ AC Servo Motor – Part No. W-L02152

• ⑤ RV Reducer – Part No. W-L02117

• ③ Grease – Part No. 100-0624

3. J3 Axis

• ① AC Servo Motor – Part No. W-L02150

• ⑥ RV Reducer – Part No. L10725G00

• ③ Grease – Part No. 100-0624

4. J4 Axis

• ⑦ AC Servo Motor – Part No. W-L02148

• ⑧ Harmonic Reducer – Part No. W-L02034

• ⑨ Grease – Part No. 2670-052

• ⑩ & ⑪ Grease – Part No. 2670-017

5. J5 Axis

• ⑦ AC Servo Motor – Part No. W-L02148

• ⑫ Harmonic Reducer – Part No. L10725H00

• ⑬ Belt – Part No. W-L02051

• ⑭ Grease – Part No. 2670-017

• ⑨ Grease – Part No. 2670-052

6. J6 Axis

• ⑮ AC Servo Motor – Part No. W-L02147

• ⑯ Harmonic Reducer – Part No. W-L02036

• ⑭ Grease – Part No. 2670-015

• ⑰ Grease – Part No. 2670-053

• ⑩ & ⑪ Grease – Part No. 2670-017

7. Internal Wiring (Cable Assemblies)

• (1) Rear body to upper arm – Part No. L10525C00

• (2) J5 & J6 axes (upper arm) – Part No. L10525D00

• (3) J5 & J6 axes (upper arm) – Part No. L10525E00

• (4) J6 axis – Part No. L10470H00

8. Component Units

• J5 Axis Assembly – Part No. L10470C00

• J6 Axis Assembly – Part No. L10470B00

9. Other Components

• Power Cable (inside J1) – Part No. L10485000

• Power Cable (from J2 to upper arm) – Part No. L10485S00

• ⑱ Battery – Part No. 100-2147

All parts listed are genuine OTC Daihen, ensuring perfect fit and long‑term reliability for your AII-B4L robot.

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OTC Daihen AII-B4L (A2-B4L) Welding Robot Parts – All part numbers are based on official OTC documentation.
       * Product images are for reference; actual parts may vary slightly by batch.