Introduction
Crane and Hoist Duty Motors
Crane and hoist duty motors are most suitable for demanding applications where intermittent duty drives are required. These are duty-type rated motors, which require a high starting torque with a low starting current. Crane and hoist duty motors have to withstand frequent start-stops and reversal operations.
The term, ‘duty’, defines the load-cycle to which the machine is subjected, including, if applicable, starting, electric braking, no-load and rest de-energized periods, and including their durations and sequence in time. We offer a wide range of duties such as S1, S2, S3, S4, S5, S6, S7, S8 and S9, which comply with the IS 12824 standard.
Specifications
Range | 0.37 kW to 315 kW |
Synchronous RPM | 1500, 1000, 750 |
Mounting | Foot (B3), Flange (B5), Face (B14), Foot cum Flange (B35) and combinations |
Frame | 71 to 355 |
Protection | IP55 as standard IP56, IP57, IP66, IP67 as optional |
Insulation | F Class |
Voltage | Standard: 415 V Optional: 110 V to 690 V |
Frequency | 50/60 Hz |
Duty | S2, S3, S4, S5, S7, S8 |
Applications
- Cement industries
- Cranes
- Hoists
- Lifts
- Machine tools
- Material handling equipment
- Paper mills
- Steel plants