The MG double-girder semi-gantry crane (hook type) is a mid-sized rail-mounted lifting system. It is primarily composed of a box-shaped gantry, a crane crab, a trolley traveling mechanism, and an electric control system.

1.Design & Structure:
The gantry features a single supporting leg on one side, which travels on ground rails, while the other side runs on elevated rails mounted on the workshop structure. This semi-gantry design is also available with an electric hoist as the lifting mechanism, which travels along the lower flange of the I-beam girder. The remaining structure and configuration are consistent with our standard MG/MH series gantry cranes.

2.Operator Cabin:
A fully enclosed, ergonomic cab is standard, featuring an adjustable seat, insulated flooring, toughened glass, a fire extinguisher, and an electric fan. Optional accessories include air conditioning, an acoustic alarm, and an intercom.

3.Key Features:

1.Simple, compact, and stable construction.

2.Easy installation and high operational efficiency.

3.Integrated overload and low-voltage protection.

4.Dual control via pendant and wireless remote.

5.Designed for easy maintenance.

6.Top-hook collision prevention with shields and barriers.

Core Components & Specifications:

1.Main Girder:

Material: Q235B/Q345B steel plate, seamlessly formed.

Manufacturing: CNC cut.

Coating: Epoxy zinc-rich paint.

2.Hoist:

Insulation: Class F protection.

Options: Single or dual speed, complete with traveling trolley, reducer, drum, motor, and overload limiter.

3.Outrigger (Legs):

Constructed from welded high-strength steel, fitted with rollers for easy mobility.

4.Wheels:

All wheels (crab, main beam, end carriage) are produced in a specialized vacuum casting workshop.

5.Hook:

Types: Single or double hook configurations.

Specification: Drop-forged, plain 'C' type, swiveling on thrust bearings, equipped with safety latch and wire rope sheath.

6.Wireless Remote Control:

Models: F21, F23, F24.

Control: Single speed, dual speed, or VFD (Variable Frequency Drive).

Durability: Rated for 500,000 operations.