Gantry crane
MG Type Double Beam Gantry Crane 30 Tons (Customizable, Heavy‑Duty)
Product Overview
The MG Type Double Beam Gantry Crane is a track-traveling medium to heavy-duty crane designed for outdoor operations. It features dual main girders (box or truss), an electric trolley/hoist, and robust A‑frame or U‑frame legs for high stability. Ideal for material yards, outdoor warehouses, ports, rail terminals, hydropower stations, and logistics parks. Supports duty classes A4–A7 with customizable span, lifting height, speeds, cantilevers, and control methods (pendant, radio, operator cabin).
Product Advantages
Rigid, Stable Structure
Double box girders with steel legs running on a ground beam deliver precise handling under heavy loads.
Versatile Configurations
A‑type (general cargo) and U‑type (container‑friendly) options; single/double cantilevers configurable for wider working range.
Efficient Drives & Controls
VFD available for hoist, cross travel, and long travel; independent/simultaneous motion; conductor systems via cable reel or busbar.
Durable Build & Finish
Q235/Q345 steel construction, Sa2.5 shot‑blasting, epoxy zinc‑rich coating for long‑term outdoor protection.
Standardized Electricals
Electrical components from CHINT/Siemens/Schneider available; easy maintenance and global availability.
Application Scenarios
- Material yards and outdoor warehouses: steel structures, precast beams, stone blocks
- Ports and rail yards: container and bulk cargo transfer
- Industrial plants and fabrication sites: heavy equipment handling and assembly
- Energy and infrastructure: hydropower stations, bridge construction sites
Product Specifications
| Parameter | Details |
|---|---|
| Rated Capacity | 5–75 t typical (common: 25 t, 30 t, 45 t, 50 t, 70 t, 80 t, 100 t) |
| Duty Class | A4 / A5 / A6 / A7 |
| Span | 18–35 m (customizable) |
| Max Lifting Height | Main hook 10 m (typical); Aux hook 12 m (customizable) |
| Lifting Speed | Main hoist ~10 m/min; Aux hoist ~15 m/min (VFD optional) |
| Travel Speeds | Trolley ~35 m/min; Long travel ~40 m/min (VFD optional) |
| Structure Options | Box girder or truss girder; A‑type/U‑type legs; cantilever optional |
| Power Supply | 3‑Phase AC 380V 50Hz standard (other voltages/frequencies customizable) |
| Conductor System | Cable reel or busbar |
| Motor Type | Heavy‑duty slip ring motor (configurable) |
| Motor Power | Hoist 15/22/37/45/55 kW typical; Trolley 15/22/37 kW; Long travel 2×6.3/2×8.5/2×11 kW |
| Steel Material | Q235 / Q345 |
| Surface Treatment | Sa2.5 shot‑blasting; epoxy zinc‑rich coating |
| Electrical Brands | CHINT / Siemens / Schneider (customizable) |
| Recommended Rail | 30 kg/m, 38 kg/m, 43 kg/m, 50 kg/m (by tonnage/span) |
| Operating Temperature | −20 to +40 °C (customizable) |
| Approx. Self‑Weight | ~45,600 kg (varies by configuration) |
| Documentation | Machinery test report; video outgoing inspection (available) |
| Warranty | 1 year; free online technical support and replacement parts (per contract) |
| Color | Red/Yellow/custom |
| Branding | Logo and packaging customization |
Features at a Glance
- Double girder A‑frame/U‑frame design for high stability and precision
- Configurable span, hook height, speeds, and cantilevers
- VFD options for smooth hoisting and travel motions
- Outdoor‑ready finish with Sa2.5 blasting and epoxy zinc‑rich coating
- Standardized electrical components for reliability and easy service
FAQ
1. What’s the information should I provide when inquiry?
More details or drawings, better. A: Lift capacity B: Crane arm length C: lift height: hook travel distance D: What material to lift E: power source or other specials you give us will be more appreciated.
2. How many operating methods for my selection?
Standard operating methods: A: pendent controller with push buttons .B: remote control with push buttons. Choose any type as you like.
3. Can this type work in hazardous environment?
Sure! We can customize for you, acid proof or explosion proof, no problem for that.
4. What about warranty time ?
Use within the standard for the next 12 months.
5. How can we install the crane? Our senior engineer can be your side to do the installation guide service and training.
6. May I visit your factory?
Of course. We can pick you up at train station, high-speed rail station or airport, and book hotel for you.
