Torque motors
Torque Motors (winding)
A torque motor is an induction motor with drooping curves: it drops in speed as it is loaded, and its name plate states stall (lock) torque and no-load speed. Mark Elektriks developed torque motors as import substitutes in 1971, received the G. S. Parkhe award for them, and has supplied over 50,000 since.
Applications: HDPE tapes, monofilament yarns, extruded films, rubberised fabrics, textiles, copper and steel strips, wire enamelling, stranding, bunching and drawing machines
Materials wound
- HDPE tapes, monofilament yarns, box strapping
- All types of extruded plastic films
- Rubberised fabrics, textiles
- Copper wires from 8 SWG to 43 SWG
- S.S. and M.S. wires
- Strips of copper, mild steel etc.
- Paper covered conductors (round and strip)
Wire industry
- Wire enamelling machines, 14 to 42 SWG (horizontal and vertical)
- Wire stranding and bunching machines
- Wire drawing spooling machines
Range
- Three phase: 3 kg-cm (0.03 kg-m) to 2000 kg-cm (20 kg-m)
- Single phase: 0.7 kg-cm to 35 kg-cm
- 500 to 3000 rpm (12 pole to 2 pole)
- IEC frames or modified frames; one-to-one replacements for imported motors
- Geared torque motors with planetary gearboxes
- Close-tolerance matched T/N curves, so one variac can control a whole ganged line
Standard designs (415 V)
| kW / HP | Locked rotor torque | No-load speed | Cooling | Frame |
|---|---|---|---|---|
| 0.15 / 0.2 | 0.25 kg-m | 700 rpm | TEFC | 90 |
| 0.3 / 0.4 | 0.45 kg-m | 700 rpm | TEFC | 100 L |
| 0.37 / 0.5 | 0.25 kg-m | 1400 rpm | TEFC | 100 L |
| 0.75 / 1.0 | 0.5 kg-m | 1400 rpm | TEFC | 132 |
| 0.75 / 1.0 | 0.9 kg-m | 700 rpm | TEFC | 132 |
| 1.1 / 1.5 | 0.75 kg-m | 1400 rpm | TEFC | 132 |
| 2.2 / 3.0 | 1.5 kg-m | 1400 rpm | SPFV | 132 M |
| 3.7 / 5.0 | 2.5 kg-m | 1400 rpm | SPFV | 132 M |
| 5.5 / 7.5 | 3.5 kg-m | 1400 rpm | SPFV | 160 M |
| 7.5 / 10 | 4.8 kg-m | 1400 rpm | SPFV | 160 / 180 |
| 11 / 15 | 7.5 kg-m | 1400 rpm | SPFV | 160 / 180 |
| 15 / 20 | 10.0 kg-m | 1400 rpm | SPFV | 160 / 180 |
To size a custom torque motor, send us
- SWG range of wire (min. and max. diameter)
- Spool size: barrel dia. x flange dia.
- Max. weight of wound spool
- Min. and max. line speed (m/min)
- Quantity required
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