ST SERIES · OIL-COOLED
ST Oil-Cooled Servo Motors
30.3 kW to 60.5 kW at 1700 r/min with 170–340 N·m rated torque, for continuous high-torque duty where air cooling is not enough.
Model range
Four ratings in the 260ST frame with an integrated oil circuit: heat leaves through the coolant, so torque density stays high in a short frame.
| Model | Rated power | Rated speed | Rated torque | Peak torque | Rated current | Peak current | Encoder | Protection | Weight |
|---|---|---|---|---|---|---|---|---|---|
| 260ST-X30317L | 30.3 kW | 1700 r/min | 170 N·m | 510 N·m | 49.8 A | 154 A | 1-pole-pair resolver | IP65 | 86 kg |
| 260ST-X40917L | 40.9 kW | 1700 r/min | 230 N·m | 690 N·m | 71.5 A | 221 A | 1-pole-pair resolver | IP65 | 98 kg |
| 260ST-X50717L | 50.7 kW | 1700 r/min | 285 N·m | 855 N·m | 89.7 A | 278 A | 1-pole-pair resolver | IP65 | 115 kg |
| 260ST-X60517L | 60.5 kW | 1700 r/min | 340 N·m | 1020 N·m | 105.4 A | 326 A | 1-pole-pair resolver | IP65 | 127 kg |
Encoder: 1-pole-pair resolver. Insulation class F, IP65. Coolant flow, oil type and manifold orientation confirmed per project.
Where oil cooling wins
Presses, injection units and extruders that hold high torque for hours — the winding stays cool, so torque does not fall away with duty.
Compact envelope
Removing the fan shrinks the frame and cuts noise; useful where the motor sits inside a machine guard.
Sealed for harsh plant
IP65 with an oil-tight terminal box, so coolant and swarf do not reach the winding.
Paired with JLS drives
Sized together with the drive and resolver cable, including the brake option for vertical axes.
Send us the duty cycle
Motor selection here depends on coolant temperature and load profile, not only on rated torque.