Heavy Duty Double Girder Gantry Crane for Construction

1. Product Introduction
Gantry cranes are versatile lifting equipment that operate using an open trolley mounted on a beam or rail system. They are ideal for outdoor and temporary applications where permanent overhead cranes would require extensive structural modifications. These cranes can be easily disassembled and relocated as needed.
Our Heavy Duty Double Girder Gantry Cranes are designed to handle heavy loads up to 700 tons with spans exceeding 50 meters. They are suitable for construction sites, shipyards, ports, rail yards, factories, and warehouses.
This model is built with high-quality materials and advanced engineering, ensuring durability and efficiency in demanding environments.
The crane features a double girder design, which provides greater stability and load capacity compared to single girder models. It also supports multiple control options including cabin, pendant, and remote controls for flexibility and ease of operation.



2. Technical Specification
1- Lifting Mechanism
- Open winch trolley with motor, gearbox, hydraulic brake, drum, hook, sheaves, coupling, and brake drum
- Rigid box-type trolley frame
- Wound rotor 3-phase asynchronous motor
- Hardened teeth gearbox
- Hydraulic drum brake
- Plate-rolled drum kits
2- Driven Bogie and Bottom Beam
- Forged flanged wheels
- Rigid welded box-type beam
- Compact layout
3- Girders and Legs
- 2 main girders and 4 legs made of welded box type
- Material: High-quality carbon steel Q235B or Q345B
- Main girders connected by high-strength bolts
- Weld joints tested via X-ray or ultrasonic examination
- Modular design
- Designed deflection ≤ 1/800 of span
4- Control
- Cabin control
- Optional independent pendent control
- Optional wireless control
5- Electric Parts
- Conductor power supply
- All hoist and crane movements are independent and can run simultaneously
- Protection degree IP55
- Components arranged for easy maintenance
- Festoon cables suspended on cable saddles, running in galvanized C-track
6- Painting
- Corrosion protection through mechanical shot blasting SA 2.5
- First layer: Epoxy 30 microns
- Second layer: Epoxy 30 microns
- Third layer: Polyurethane 40 microns
- Average thickness: ~100 microns
- Color: Yellow or Orange as per customer request
7- Safety Protection
- Emergency stop switch
- Overload protection
- Earth protection
- Zero position protection
- Cross travel and long travel protection
- Lifting travel protection
- Motor overheating protection
- Rainproof devices included
- Alarm bell and lamp included
- Anemometer and aviation obstruction light available as optional

3. Factory View

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