ST Torque Rotating Unit
Rotate and pivot with precision and extremely high dynamics
The ST torque rotating unit, featuring a direct drive and absolute encoder, is exactly the right tool to use when fast, precise and highly dynamic rotating, tilting and gripping motions are required. Whether for feeding or orienting parts, in the process, as a swivel module for grippers or as a replacement for standard servomotors with planetary gears, the ST rotating unit provides the optimal solution.
Compatible control packages: W.A.S. 2 COMPACT, W.A.S. 2 SCALABLE
Benefits
- Extremely high dynamics
- High power density
- Free positioning
- No maintenance costs
- Wide range of mounting options
Technical Features
- Compact size, light weight
- No oil, no gears
- Many different sizes and designs
- Absolute measuring system
- Light weight

ST55A
Technical Data
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indexing precision± 90 ''
-
peak torque36 Nm
-
max. output speed70 1/min
-
max. static axial force1900 N

ST75A-1
Technical Data
-
indexing precision (ECN413)± 20 "
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indexing precision (ECN413)± 60 "
-
indexing precision (SK36)± 120 "
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indexing precision (SEK52)± 280 "
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peak torque1,4 Nm
-
max. speed (400V)3100 1/min
-
axial runout± 0,01 mm
-
radial runout± 0,01 mm
-
max. dynamic axial force150 N

ST75A-2
Technical Data
-
indexing precision (ECN413)± 20 "
-
indexing precision (ECN413)± 60 "
-
indexing precision (SK36)± 120 "
-
indexing precision (SEK52)± 280 "
-
peak torque2,8 Nm
-
max. speed (400V)1700 1/min
-
axial runout± 0,01 mm
-
radial runout± 0,01 mm
-
max. dynamic axial force150 N

ST75A-3
Technical Data
-
indexing precision (ECN413)± 20 "
-
indexing precision (ECN413)± 60 "
-
indexing precision (SK36)± 120 "
-
indexing precision (SEK52)± 280 "
-
peak torque4,2 Nm
-
max. speed (400V)1600 1/min
-
axial runout± 0,01 mm
-
radial runout± 0,01 mm
-
max. dynamic axial force150 N

ST140A-1
Technical Data
-
indexing precision (ECN2180)± 15 "
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indexing precision (ECN113)± 25 "
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indexing precision (SES90)± 120 "
-
peak torque18 Nm
-
max. speed (400V)1400 1/min
-
axial runout± 0,01 mm
-
radial runout± 0,01 mm
-
max. dynamic axial force300 N

ST140A-2
Technical Data
-
indexing precision (ECN2180)± 15 "
-
indexing precision (ECN113)± 25 "
-
indexing precision (SES90)± 120 "
-
peak torque36 Nm
-
max. speed (400V)1200 1/min
-
axial runout± 0,01 mm
-
radial runout± 0,01 mm
-
max. dynamic axial force300 N