Cranes
A‑Frame Gantry Crane, MG Double Girder 10–50 Ton (Customizable, Heavy‑Duty)
Product Overview
This MG Series A‑frame double girder gantry crane is a track‑traveling medium to heavy‑duty crane designed for outdoor operations. With dual main girders (box or truss), an electric trolley/hoist running on top rails, and robust A‑ or U‑type legs, it delivers stable, precise lifting for frequent, long‑travel operations. Typical use cases include material yards, outdoor warehouses, ports, rail terminals, hydropower stations, and logistics parks. Duty class configurable from A4 to A7. Control options include pendant, wireless radio, and operator cabin.
Product Overview
Rigid, Stable Structure
Double girders + A‑frame/U‑frame legs with ground‑beam travel provide high stiffness and precise load handling under heavy duty.
Versatile Configurations
Box or truss main girders; A‑type for general cargo, U‑type for wide loads/containers; optional single/double cantilevers.
Efficient Drives with VFD
Frequency conversion available for hoisting, cross travel, and long travel; motions can run independently or simultaneously. Conductor options include cable reel or busbar.
Durable Outdoor Build
Q235/Q345 steel construction, Sa2.5 shot‑blasting, epoxy zinc‑rich paint system for long‑term corrosion resistance.
Standardized Electricals
Electrical components from brands like CHINT/Siemens/Schneider available for reliability and easy maintenance.
Application Scenarios
- Open‑air warehouses and material yards: steel structures, precast beams, stone blocks
- Ports and rail terminals: containers, steel coils, bulk cargo
- Industrial plants and fabrication sites: heavy equipment handling and assembly
- Energy and infrastructure: hydropower stations, bridge construction
Product Specifications
| Parameter | Details |
|---|---|
| Rated Capacity | 10 t / 20 t / 30 t / 40 t / 50 t typical; up to 75 t configurable |
| Duty Class | A4 / A5 / A6 / A7 |
| Span | 18–35 m (customizable) |
| Max Lifting Height | Main hook 10 m typical; Aux hook 12 m (customizable) |
| Hoisting Speed | Main ~10 m/min; Aux ~15 m/min (VFD optional) |
| Travel Speeds | Trolley ~35 m/min; Long travel ~40 m/min (VFD optional) |
| Structure Options | Box or truss girders; A‑type/U‑type legs; single/double cantilevers |
| Power Supply | 3‑Phase AC 380V 50Hz (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 options; 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 / 38 / 43 / 50 kg/m (by tonnage/span) |
| Operating Temperature | −20 to +40 °C (customizable) |
| Documentation | Machinery test report; video outgoing inspection (available) |
| Warranty | 1‑year warranty; online technical support and replacement parts |
| Color | Custom |
| Branding | Logo/packaging customization |
| Approx. Self‑Weight | ~12,500 kg reference (varies by configuration) |
Features at a Glance
- Double‑girder A‑frame/U‑frame architecture for high stability
- Customizable span, hook height, speeds, and cantilevers
- VFD‑ready hoist and travel for smooth, efficient handling
- Outdoor‑grade steel and anti‑corrosion coating system
- Standardized electrical components for reliable uptime
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.