High Torque Slipring Motors

Slipring induction motors (also known as wound rotor motors) are designed for applications requiring high starting torque with low starting current. The external resistance connected to the rotor circuit allows smooth acceleration and variable speed control, making them ideal for heavy industrial applications.

High Starting Torque
Low Starting Current
Variable Speed Control
5-1500 HP Range
300% Starting Torque

Slipring Motors

5 HP to 1500 HP | 415V to 3.3kV

Key Features

Why choose slipring motors

High Starting Torque

Up to 300% of full load torque for heavy starts

Smooth Acceleration

Gradual acceleration without mechanical shock

Low Starting Current

Typically 1.5 to 2.5 times full load current

Speed Control

Variable speed by rotor resistance control

Robust Construction

Heavy duty design for demanding applications

Easy Maintenance

Accessible brush gear and sliprings

Technical Specifications

Detailed specifications for our slipring motor range

Parameter Specification
Power Range 5 HP to 1500 HP
Voltage 415V, 3.3kV, 6.6kV
Frequency 50 Hz / 60 Hz
Speed (RPM) 500, 750, 1000, 1500, 1800
Starting Torque 200% - 300% of full load torque
Starting Current 1.5 - 2.5 times full load current
Enclosure TEFC, ODP, WPII
Insulation Class F / H
Protection Class IP55 / IP65 / IP23

Typical Applications

Where slipring motors excel

Cranes & Hoists

EOT cranes, gantry cranes, hoists

Crushers

Stone crushers, coal crushers

Mills

Ball mills, roller mills, hammer mills

Elevators

Material handling elevators

Conveyors

Heavy duty belt conveyors

Compressors

Large reciprocating compressors

Motor Control Gear

We also supply complete control panels for slipring motors including:

  • Rotor resistance starters
  • Liquid rotor starters
  • Variable frequency drives (VFD)
  • Soft starters
  • Protection and control panels

Custom Control Solutions

We design and build custom control systems for your specific application requirements.

Need a Slipring Motor?

Contact us for specifications, pricing, and custom requirements