Precision-Engineered Motors for Cranes & Hoists
When a 10-tonne load hangs mid-air, your motor cannot hesitate. Our crane-duty brake motors deliver instant fail-safe braking and high starting torque for overhead cranes, gantry cranes, and chain hoists across Indian factories.
Why This Application Demands Specialized Motors
Crane and hoist operations demand motors that can handle extreme start-stop cycles — often 100+ times per shift. Standard motors overheat and fail under S3/S4 intermittent duty. A motor failure mid-lift risks catastrophic load drops, worker injuries, and production shutdowns costing ₹5–10 lakh per incident. Indian steel mills, shipyards, and automotive plants need motors rated for 40% to 60% duty cycles with instant braking response under 50 milliseconds.
How Sun Star Motors Solves It
Sun Star Motors™ crane-duty brake motors are purpose-built for vertical lifting applications. Our AC fail-safe braking system engages within 30ms of power loss — the brake springs clamp the rotor even during power failures. With Class F insulation rated for 155°C and reinforced shafts designed for radial thrust loads, these motors handle the thermal stress of frequent starts without derating. Available in foot, flange, and face mounting configurations to fit any crane gearbox.
Key Technical Requirements
Duty Cycle
S3 (40% ED) / S4 (40% ED)
Braking Response
< 30 milliseconds
Braking Torque
Up to 200 Nm
Power Range
0.5 HP to 20 HP
Insulation Class
Class F (155°C)
Protection Rating
IP54 / IP55
Mounting Options
B3 (Foot) / B5 (Flange) / B14 (Face)
Best Motors for Crane & Hoist Motors
Brake Motor
Precision stopping meets industrial safety. Designed for cranes, hoists, and elevators, our brake motors feature a fail-safe AC braking system that ensures instant holding power the moment power is cut. Adjustable braking torque allows for fine-tuned control in frequent start-stop operations where safety is non-negotiable.
Heavy Duty Motor
Built for the extremes of mining, steel mills, and cement plants. Our heavy-duty motors feature reinforced bodies and shafts to handle massive starting loads and high-torque crushing operations. VFD-compatible and S1-rated for continuous duty in the most punishing industrial environments.
Break Motor With Gear
The ultimate solution for high-torque, slow-speed precision. By integrating a speed reducer with our fail-safe braking system, this unit provides exceptional control for material handling lifts and rotary tables. Compact and powerful, it delivers massive output torque while ensuring safe, immediate stopping.
Crane & Hoist Motors — FAQs
01What duty cycle rating do I need for an EOT crane motor?
02What is a fail-safe brake motor for cranes?
03Can Sun Star motors be used for gantry cranes and jib cranes?
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Need Motors for Your Crane & Hoist Application?
Our engineers will recommend the right motor specification for your exact requirements. Get a custom quote within 24 hours.