ST SERIES · 220 V
ST Series AC Servo Motors
Low-voltage permanent-magnet synchronous servo motors from 200 W to 7.5 kW. 3000 r/min for compact axes, 1500 r/min for high-torque axes.
Low voltage, high response
The 220 V ST range is built for fast indexing axes: low rotor inertia, 3000 r/min base speed and a 17/23-bit absolute encoder so the drive knows the position at power-up without homing.
Model range
Fifteen standard models across five flange sizes. Holding-brake versions add an electromagnetic brake to the same frame; suffix H marks the brake build.
| Model | Rated power | Rated speed | Rated torque | Peak torque | Rated current | Peak current | Encoder | Protection | Weight |
|---|---|---|---|---|---|---|---|---|---|
| 60ST-J20B30C | 200 W | 3000 r/min | 0.64 N·m | 1.92 N·m | 1.7 A | 5.7 A | 17/23-bit absolute magnetic | IP65 | 0.8 kg |
| 60ST-J40B30C | 400 W | 3000 r/min | 1.27 N·m | 3.81 N·m | 2.5 A | 8.4 A | 17/23-bit absolute magnetic | IP65 | 1.1 kg |
| 60ST-J60B30C | 600 W | 3000 r/min | 1.91 N·m | 5.73 N·m | 3.6 A | 11.2 A | 17/23-bit absolute magnetic | IP65 | 1.4 kg |
| 80ST-J75B30C | 750 W | 3000 r/min | 2.39 N·m | 7.17 N·m | 4.4 A | 13.8 A | 17/23-bit absolute magnetic | IP65 | 2.1 kg |
| 80ST-J10C30C | 1 kW | 3000 r/min | 3.18 N·m | 9.54 N·m | 5.8 A | 18.1 A | 17/23-bit absolute magnetic | IP65 | 2.5 kg |
| 110ST-B90B30 | 900 W | 3000 r/min | 2.86 N·m | 8.6 N·m | 4.5 A | 13.5 A | 17/23-bit absolute magnetic | IP65 | 2.5 kg |
| 110ST-B12C30 | 1.2 kW | 3000 r/min | 3.82 N·m | 11.4 N·m | 6 A | 18 A | 17/23-bit absolute magnetic | IP65 | 4.3 kg |
| 110ST-B15C30 | 1.5 kW | 3000 r/min | 4.77 N·m | 14.3 N·m | 7.6 A | 24 A | 17/23-bit absolute magnetic | IP65 | 5.1 kg |
| 110ST-B18C30 | 1.8 kW | 3000 r/min | 5.73 N·m | 17.2 N·m | 9.5 A | 29 A | 17/23-bit absolute magnetic | IP65 | 6.1 kg |
| 130ST-B85B15 | 850 W | 1500 r/min | 5.41 N·m | 16.23 N·m | 4.6 A | 14.2 A | 17/23-bit absolute magnetic | IP65 | 5.2 kg |
| 130ST-B13C15 | 1.3 kW | 1500 r/min | 8.28 N·m | 24.84 N·m | 7.7 A | 23.7 A | 17/23-bit absolute magnetic | IP65 | 6.6 kg |
| 130ST-B18C15 | 1.8 kW | 1500 r/min | 11.46 N·m | 34.38 N·m | 9.8 A | 30.2 A | 17/23-bit absolute magnetic | IP65 | 8 kg |
| 130ST-B23C15 | 2.3 kW | 1500 r/min | 14.64 N·m | 43.92 N·m | 12.4 A | 38.4 A | 17/23-bit absolute magnetic | IP65 | 10 kg |
| 130ST-B18C15H | 1.8 kW | 1500 r/min | 11.46 N·m | 34.38 N·m | 6.3 A | 19.2 A | 17/23-bit absolute magnetic | IP65 | 8 kg |
| 130ST-B23C15H | 2.3 kW | 1500 r/min | 14.64 N·m | 43.92 N·m | 8.5 A | 26.2 A | 17/23-bit absolute magnetic | IP65 | 10 kg |
| 180ST-B30C15 | 3 kW | 1500 r/min | 19.1 N·m | 57.3 N·m | 11 A | 37.4 A | 17/23-bit absolute magnetic | IP65 | 12.9 kg |
| 180ST-B30C15H | 3 kW | 1500 r/min | 19.1 N·m | 57.3 N·m | 11.6 A | 38.2 A | 17/23-bit absolute magnetic | IP65 | 16.6 kg |
| 180ST-B45C15 | 4.5 kW | 1500 r/min | 28.7 N·m | 85.9 N·m | 15.9 A | 51.7 A | 17/23-bit absolute magnetic | IP65 | 21.1 kg |
| 180ST-B45C15H | 4.5 kW | 1500 r/min | 28.7 N·m | 85.9 N·m | 16.6 A | 53.8 A | 17/23-bit absolute magnetic | IP65 | 28.4 kg |
| 180ST-B55C15 | 5.5 kW | 1500 r/min | 35 N·m | 105 N·m | 20.2 A | 64.6 A | 17/23-bit absolute magnetic | IP65 | kg |
| 180ST-B55C15H | 5.5 kW | 1500 r/min | 35 N·m | 105 N·m | 21.4 A | 66.8 A | 17/23-bit absolute magnetic | IP65 | kg |
| 180ST-B75C15 | 7.5 kW | 1500 r/min | 47.8 N·m | 143.3 N·m | 25.8 A | 82.5 A | 17/23-bit absolute magnetic | IP65 | kg |
| 180ST-B75C15H | 7.5 kW | 1500 r/min | 47.8 N·m | 143.3 N·m | 26.7 A | 85.2 A | 17/23-bit absolute magnetic | IP65 | kg |
Encoder: 17-bit or 23-bit absolute magnetic, single- or multi-turn. Insulation class F. Protection IP65. Other windings, shafts, connectors and cable lengths on request.
3000 r/min frames
60ST / 80ST / 110ST — 200 W to 1.8 kW for fast, light axes such as pick-and-place and small gantries.
1500 r/min frames
130ST / 180ST — 850 W to 7.5 kW, up to 47.8 N·m rated, for heavy slides, presses and rotary tables.
Brake built in
Suffix H adds a spring-applied holding brake for vertical axes and safe parking without external mechanics.
Matched drives
Every model is paired with a JLS drive from the same catalogue, so current, encoder and cable are verified together.
Detail data
Full electrical data (all models)
| Specification | 60ST-J20B30C | 60ST-J40B30C | 60ST-J60B30C | 80ST-J75B30C | 80ST-J10C30C | 110ST-B90B30 | 110ST-B12C30 | 110ST-B15C30 | 110ST-B18C30 | 130ST-B85B15 | 130ST-B13C15 | 130ST-B18C15 | 130ST-B23C15 | 130ST-B18C15H | 130ST-B23C15H | 180ST-B30C15 | 180ST-B30C15H | 180ST-B45C15 | 180ST-B45C15H | 180ST-B55C15 | 180ST-B55C15H | 180ST-B75C15 | 180ST-B75C15H |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rated current (A) | 1.7 | 2.5 | 3.6 | 4.4 | 5.8 | 4.5 | 6 | 7.6 | 9.5 | 4.6 | 7.7 | 9.8 | 12.4 | 6.3 | 8.5 | 11 | 11.6 | 15.9 | 16.6 | 20.2 | 21.4 | 25.8 | 26.7 |
| Peak current (A) | 5.7 | 8.4 | 11.2 | 13.8 | 18.1 | 13.5 | 18 | 24 | 29 | 14.2 | 23.7 | 30.2 | 38.4 | 19.2 | 26.2 | 37.4 | 38.2 | 51.7 | 53.8 | 64.6 | 66.8 | 82.5 | 85.2 |
| Ke (Vrms/krpm) | 23 | 31 | 36 | 34 | 34 | — | — | — | — | — | — | — | — | — | — | 103 | 105 | 102 | 111 | — | — | — | — |
| Kt (N·m/A) | 0.38 | 0.51 | 0.53 | 0.54 | 0.55 | 0.717 | 0.698 | 0.664 | 0.697 | 1.18 | 1.08 | 1.17 | 1.2 | 1.82 | 1.72 | 1.74 | 1.65 | 1.8 | 1.73 | 1.73 | 1.64 | 1.85 | 1.79 |
| d-axis inductance (mH) | 3.7 | 2.9 | 2.1 | 2.1 | 1.4 | 6.27 | 3.8 | 2.61 | 2.26 | 7.5 | 4.7 | 3.3 | 2.6 | 5.2 | 5.9 | — | — | — | — | — | — | — | — |
| q-axis inductance (mH) | 4.3 | 3.4 | 2.5 | 2.5 | 1.7 | 7.13 | 4.3 | 2.95 | 2.56 | 9.3 | 5.9 | 4.1 | 3.1 | 10.3 | 7.2 | — | — | — | — | — | — | — | — |
| Electrical time constant (ms) | 1.62 | 1.79 | 1.95 | 3.89 | 3.8 | 9.18 | 11.1 | 11.7 | 12.3 | 10 | 11.9 | 10.7 | 12.4 | 10.5 | 11.9 | 15.2 | 18.9 | 17.2 | 20 | — | — | — | — |
| Pole pairs | 5 | — | — | 5 | — | 5 | — | — | — | 5 | — | — | — | — | — | 5 | — | — | — | — | — | — | — |
| Body length L (mm) | 75 | 92 | 109 | 98.5 | 111.5 | 148 | 163 | 178 | 193 | 130 | 146 | 164 | 186 | 10 | 11.5 | 156 | 180 | 205 | 250 | — | — | — | — |
Need a drawing or a 3D model?
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