Electric slewing crane

Electric Rotary Crane Product Introduction

1. Product Overview

The electric rotary crane is a versatile and efficient lifting machine powered by an electric motor, integrating lifting, telescopic boom movement, and 360° full-circle slewing. Designed with a stable slewing bearing, reliable electrical control system, and durable structural components, it provides safe, stable, and efficient load handling for fixed stations, workshops, wharves, warehouses, and light industrial sites. Compared with hydraulic cranes, it features lower energy consumption, simpler maintenance, and cleaner operation, making it an ideal lifting solution for indoor and outdoor general industrial applications.

2. Equipment Classification and Applications

Classification

By Installation Type: Fixed pedestal electric rotary crane, wall-mounted electric rotary crane, column-mounted jib crane.

By Boom Structure: Telescopic boom crane, fixed-length boom crane, folding boom crane.

By Lifting Capacity: Light-duty (0.5t–5t), medium-duty (5t–16t), heavy-duty (16t–32t).

By Control Mode: Pendant button control, wireless remote control, and integrated cabin control.

Applications

Industrial Workshops: Equipment installation, mold lifting, component assembly, and production line material handling.

Warehouses & Logistics: Cargo loading and unloading, pallet handling, and high-level storage operations.

Ports & Freight Yards: Light cargo transshipment, short-distance lifting, and container auxiliary operation.

Construction Sites: Building material lifting, small machinery handling, and on-site auxiliary construction.

Maintenance & Repair Facilities: Heavy parts disassembly, equipment maintenance, and precision positioning.

3. Working Principle

A three-phase electric motor system powers the electric rotary crane. The lifting motor drives the winch to wind and unwind the steel wire rope, achieving vertical load lifting and lowering. The slewing motor drives the slewing bearing through a reduction gearbox, realizing 360° free rotation of the boom and load. The telescopic or luffing motor adjusts the boom’s working radius and height to meet different operating ranges. The electrical control system integrates limit switches, overload protection, and phase sequence protection to ensure stable and safe movement. Operators control lifting, slewing, and telescoping through a wired pendant or wireless remote, achieving flexible and precise load positioning.

4. Performance Advantages

360° Flexible Rotation: Continuous full-circle slewing supports omni-directional operation and improves space utilization.

Energy Saving & Environmentally Friendly: Pure electric drive with low noise, no oil leakage, and low operating cost.

Stable and Precise Operation: Smooth starting and braking, adjustable speed, suitable for precision lifting and assembly.

High Safety Performance: Equipped with upper and lower limit devices, overload protection, emergency stop, and anti-sway functions.

Compact Structure: Small footprint, easy installation, and suitable for limited working spaces.

Simple Maintenance: Modular electrical components, fewer wearing parts, and convenient daily inspection.

Strong Adaptability: Can be customized for fixed, wall-mounted, or column-mounted installation to meet various site requirements.

Long Service Life: High-strength steel structure, hardened gears, and durable bearings ensure stable long-term use.

5. Technical Parameters