The LH double-girder crane with electric hoist is designed for medium load capacities and features a box-shaped bridge structure, a trolley travel mechanism, a crab unit, and complete electrical equipment. Its hoisting mechanism utilizes a fixed electric hoist mounted on the crab frame. The crane operates via three control modes: pendant, wireless remote control, or cabin (available in open or enclosed types). The crab travel employs an LD drive system, while the trolley can be equipped with either LD or QD drive.

Product Overview & Capabilities:

Load Capacity: Up to 32 tons.

Compact Crab Design: Features articulated end carriage joints for positive four-wheel contact with the track, driven by two direct cross-travel motors.

Hoist & Drive: Equipped with reliable CD/MD wire rope hoists and travel drives, offering two lifting speeds in a 1:10 ratio. Trolley speeds are adjustable via VVVF (Variable Frequency Drive).

Standard Components: Includes a hook block, pendant control, and renowned-brand electrical components.

Key Product Features:

Space-saving and energy-efficient design.

Excellent performance with smooth acceleration and deceleration.

Robust and rational structure for easy operation and convenient maintenance.

High interchangeability of parts and components.

Compact and lightweight construction.

Mechanical Specifications:

Girder: Double welded box girder, beam deflection conforms to DIN/FEM standards. Constructed from Q235B or Q345B steel.

Trolley Rail: Made of high-strength hot-rolled flat steel (16Mn).

Connection: Main girder and end beams are joined with high-strength bolts for structural integrity and precision.

End Beams: Fitted with flat or double-rim wheels, anti-friction bearings, buffer blocks, and anti-derailment plates.

Finishing: Epoxy zinc-rich primer (120μm) applied to ensure longevity and a superior finish.

Walkway: A maintenance walkway with checker plate and handrail is located on one side of the main girder.

Design & Safety Standards:
The crane is designed and manufactured in accordance with relevant Chinese national standards, including but not limited to:

GB/T10183-2005 for manufacturing tolerances.

GB/T5905-1986 for testing procedures.

JB/T4315-1997 for electric control equipment.

GB8918-2006 for wire rope.

GB/T700-2006 and GB/T1591-2008 for structural steel.

JB928-1994 and GB11345-1989 for weld inspection.

Safety Features:

Overload warning and limiter.

Lifting height limit device.

Voltage loss and phase sequence protection.

Emergency stop function.

Upper and lower precision limit switches.

Hooks equipped with safety latches.

Mechanical brake and heavy-duty wear-resistant rope guides.

Lifetime-lubricated gear drives.

(Noted: According to your requirement, we supply the Individual solutions reaching from planning to implementation)