Upper Slewing Electromagnetic Lifting Beam Overhead Crane
The upper slewing electromagnetic lifting beam overhead crane is special overhead equipment dedicated to handling long steel products (billets, plate, bar, wire rod coils). The upper trolley runs on a circular track on the lower trolley, so the spreader can slew.
Type test specification: YC
Type test product name: General Purpose Overhead Crane
Advantages & features
- 01
The control console has a PLC module and HMI touchscreen with a WLK master controller for hoisting, travel and slewing: distinct feel, clear positions, zero-position self-return and locking.
- 02
The electromagnet picks up and releases by switching the current, with a response time of only 0.5–1 s; in billet transfer it can complete 80–100 pick cycles per hour, greatly improving continuous operation. The electromagnet uses high-permeability material and an optimised magnetic circuit, with holding force above 1.5 times the rated capacity. A battery back-up keeps the holding force for 15–30 minutes if the main power fails suddenly.
- 03
Advanced variable-frequency control keeps the overall failure rate low, running speeds high and handling efficiency high. Electrical anti-sway predicts the spreader's swing path by algorithm and counter-adjusts motor speed, holding swing within 5° and improving positioning accuracy.
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