Torque Motors — induction torque motors (Constant Tension Winder, Constant Torque Helper), stall torque up to 2400 in-lb
Country: · Model: Torque Motors
Induction torque motors for drives that run continuously or briefly at stall, with torque from 1 to 2160 in-lb (about 0.11–244 N·m). There are two versions, Constant Tension Winder for winding and Constant Torque Helper for maintaining line speed. Voltage up to 600 V, frequency 60 Hz.
- Type
- induction torque motor, stall operation (short-term or continuous)
- Versions
- Constant Tension Winder (winding, constant tension); Constant Torque Helper (auxiliary, constant torque up to ≈66 % of synchronous speed)
- Stall torque
- 1–2160 in-lb (≈0.11–244 N·m); for winders, up to 2400 in-lb (≈271 N·m) in the description
- Speed
- 1800, 1200, 900, 600, 300 rpm
Technical specifications
| Type | induction torque motor, stall operation (short-term or continuous) |
|---|---|
| Versions | Constant Tension Winder (winding, constant tension); Constant Torque Helper (auxiliary, constant torque up to ≈66 % of synchronous speed) |
| Stall torque | 1–2160 in-lb (≈0.11–244 N·m); for winders, up to 2400 in-lb (≈271 N·m) in the description |
| Speed | 1800, 1200, 900, 600, 300 rpm |
| Voltage | up to 600 V, 3 phases, 60 Hz |
| Frame sizes | NEMA 56–365, U and T |
| Enclosure | A-TEFC, A-DPFC, TENV; continuous duty |
| Rotor | copper or copper alloy |
| Insulation | class F, H, VPI |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
These machines differ from an ordinary induction motor in the shape of the torque curve and in thermal resistance to locked-rotor currents, and the rated quantity is the stall torque. Constant tension winder motors are installed on paper, film and wire lines, where the product must stay at constant tension. The description of this series gives a range up to 2400 in-lb (about 271 N·m). Constant Torque Helper auxiliary motors develop constant torque from standstill up to about 66 % of synchronous speed. Synchronous speeds are 1800, 1200, 900, 600 and 300 rpm, duty is continuous. Enclosures are A-TEFC, A-DPFC and TENV, because a shaft-mounted fan helps little at low speed. The rotor is copper or copper alloy, the core is M-19, M-36 or M-45 steel, insulation is class F and H with vacuum impregnation, and frame sizes are NEMA 56–365 in U and T versions. They are also used for dynamic braking, valve actuators, indexing and clamping.
How to choose
First define the task. For winding at constant tension choose Constant Tension Winder, and for maintaining line speed choose Constant Torque Helper. Then select the stall torque within 1–2160 in-lb and the synchronous speed. If the motor stands under load for a long time, independent cooling A-TEFC or A-DPFC or the TENV enclosure is needed. For an adjustable vector drive, SS-100 is closer.
Request a price and lead time
Torque Motors — induction torque motors (Constant Tension Winder, Constant Torque Helper), stall torque up to 2400 in-lb. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What is stall torque in a torque motor?
It is the rated quantity, the torque at a locked rotor with a permitted duration. It is given in inch-pounds or foot-pounds.
What is the stall torque range?
From 1 to 2160 in-lb, about 0.11–244 N·m. The winder series description states up to 2400 in-lb (about 271 N·m).
Up to what speed does Constant Torque Helper hold constant torque?
From standstill up to about 66 % of synchronous speed.
Why are torque motors made with an independent fan?
The motor often runs at very low speed or stands under load, so a shaft-mounted fan is not very effective. A-TEFC, A-DPFC or TENV is used.
Which speeds and voltages are available?
Synchronous speeds of 1800, 1200, 900, 600 and 300 rpm, voltage up to 600 V, 60 Hz.
Similar products
3.ZKELow-voltage IE3 induction motor, 18.5–1000 kW
2.RZKITLow-voltage induction motor for operation from a frequency converter, 18.5–2500 kW
HAW12 / HAW13 / HAW20 / HAW22 / HAW29Drilling induction motors 600–2000 hp, 575 V, for variable-frequency drive
IMfinity FLSESThree-phase LV induction motors in cast-iron frame IE3/IE4, 0.75–900 kWREQUEST
Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.