VRNC-170 VRNC-210 is a high-precision, stable performance and easy-to-operate numerical control dividing head produced by Tanshing Precision Enterprise Co., Ltd.
This service manual provides detailed information on the TANSHING VRNC-170 and VRNC-210 rotary tables, including machine specifications, accuracy data, and NC system overview. It also describes installation procedures, inspection items, and adjustment methods for the main mechanisms.
The document includes tables of technical parameters, inspection tolerances, and step‑by‑step guidance for setup and maintenance, helping technicians keep the equipment operating at optimal performance. This manual is written in Chinese.
| Model | VRNC-170 / VRNC-210 |
|---|---|
| Table Diameter | 170 mm / 210 mm |
| Center Height (standing position) | 133 mm / 160 mm |
| Center Hole Diameter | 33 H7 / 4SH7 |
| Division Accuracy | ±0.207 mm |
| Repeatability | ±0.047 mm |
| Maximum Load | 8 kg·m / 16 kg·m |
| Table Weight (without motor) | 43.0 kg / 53.0 kg |
| Maximum Spindle Speed | 33.3 r.p.m. (motor 3000 r.p.m.) |
Both models have a division accuracy of 207 µm.
The VRNC-170 can handle up to 8 kg·m, while the VRNC-210 can handle up to 16 kg·m.
The VRNC-170 has a table diameter of 170 mm and the VRNC-210 has a diameter of 210 mm.
The manual lists a maximum spindle speed of 33.3 r.p.m. (motor rated at 3000 r.p.m.).