Motorized Rotation
Offering motorized rotation on select Abell-Howe jib crane models.
Features & Capabilities
Abell-Howe offers motorized rotation as an added feature on select models of jib cranes. Available in our Free Standing, Wall-Cantilever, Wall-Bracketed and Mast-Type Jib Crane Models. Our rotation drive is ergonomical and increases safety and control for the crane operator.
- TYPE: Pillar or Wall-Mounted
- CAPACITY: ¼ ton – 5 tons standard
- SPAN: 8–20 ft. Standard
- HEIGHT UNDER BOOM (HUB): 8-20 ft. Standard
- ROTATION SPEED:½ RPM Nominal Speed Standard
- SERVICE: Indoor or Outdoor
Motorized Rotation available for: J904B, J904F, J904R, J902, J900, J906FCT and JENG.
- Rotation mechanical drive – The heart of the motorized rotation drive is a superior speed reducer with a direct drive from our motor pinion to the ring gear. This motor, brake and gearbox includes: 1) Lapped steel, spiral bevel pinions, and gears heat-treated and hardened to 58-62 Rockwell C. 2) Helical-enclosed gearing – final reduction from a heat-treated drive pinion to a hardened ring gear fastened to top side of jib mast.
- Variable Frequency Drive (VFD) rotation control allows for precision movements, with a brake for emergency stopping and preventing unwanted movements.
- Rotation limit switch – two-pole limit switch available. Designed for severe duty mill applications.
- Top or bottom entry collector for 360-degree continuous rotation — prevents twisting of the jib crane wiring.
- Ask your Abell-Howe distributor about powered rotation.
Motorized Rotation Images 6
Motor, Break & Gear Box
Ring Gear on Mast
Rotation Drive Pinion
Limit Switch
Jib Gear Rings
Jib Gearing
