Gantry crane

Product Overview
The Weiyuan Heavy Duty MG Type Gantry Crane is a rail-mounted, double-girder lifting system built for handling heavy structural loads in open-air industrial yards. Built with submerged-arc welded Q355B steel box girders and rigid A-frame support legs, this crane maintains a strict deflection ratio (under 1/800 to 1/1000) under full rated loads. The hoist system utilizes an open-winch crab trolley or heavy-duty wire rope hoist driven by hardened helical gear reducers and variable frequency drives (VFD). As a proven workhorse from Weiyuan, this crane delivers steady, shock-free lifting for steel mills, heavy equipment fabrication yards, and precast concrete manufacturing facilities.

Product Advantages
Engineered for Outside Lifting: Built with heavy Q355B structural steel plate, Sa2.5 shot-blasted surfaces, and a three-coat epoxy polyurethane paint system that resists UV, moisture, and outdoor corrosion.
Heavy-Duty Lifting Power: The double-girder box profile distributes mechanical stress evenly, supporting continuous high-tonnage lifting from 10t up to 200t+ with high structural safety margins.
Superior Stability and Reach: Heavy forged 42CrMo steel wheels run along ground-mounted rails with minimal wheel flange wear, while optional cantilevers allow the hook to service trucks outside the rail span.
Durable and Low-Maintenance: Hardened gear reducers in sealed oil baths, self-aligning roller bearings, and full VFD acceleration control reduce mechanical shock on the drive train and structure.
Customized to Your Needs: Weiyuan customizes span dimensions, hook lift heights, wheel load specifications, travel speeds, and below-the-hook spreaders to match your specific yard layout.

Application Scenarios
Outdoor Stockyards: Designed for continuous loading and stacking of heavy steel plates, structural beams, rebar bundles, and coils.
Precast Concrete Facilities: Safely lifts, strips, and transports heavy precast bridge girders, concrete wall panels, and culverts across the yard.
Heavy Industrial Plants: Handles heavy machinery frames, casting dies, and large fabricated assemblies during outdoor staging and testing.
Stone and Quarry Industry: Moves large raw granite and marble blocks from delivery areas to outdoor processing and cutting stations.
Construction Sites: Provides dependable, heavy-tonnage hook coverage for on-site assembly of large structural modules and building materials.

Product Specifications

Parameter	Specification
Brand	Weiyuan
Rated Capacity	10t to 200t (Customizable for heavier loads)
Span	Up to 50m (Customized to your site)
Max. Lifting Height	Up to 30m (Customized)
Work Duty	A5–A7 (Medium to Heavy Duty)
Structure	MG Type Heavy-Duty Double Girder Gantry Crane
Lifting Mechanism	Heavy-duty wire rope hoist trolley or open winch trolley
Crane Traveling Speed	20-40 m/min (VFD control available)
Trolley Traveling Speed	20-40 m/min (VFD control available)
Control Methods	Wireless Remote Control, Cabin Control
Power Supply	3-Phase 380V/400V/415V/440V, 50/60Hz via cable reel or busbar
Electrical Components	Siemens, Schneider, or equivalent premium brands
Safety Devices	Overload limiter, travel limit switches, anemometer, rail clamps, emergency stop, buffers
Working Temperature	-25°C to +40°C
Protection Class	IP55 for outdoor configuration
Steel Grade	Q355B High-Strength Carbon Steel
Warranty	1 Year
Lead Time	40–65 days (Negotiable)

Features at a Glance
Weiyuan heavy-duty MG type gantry crane, optimized for outside lifting.
Comprehensive weatherproofing for reliable all-weather operation.
Robust double-girder design for high capacity and stability.
Customizable with cantilevers for extended reach.
Ideal for steel yards, precast plants, and heavy construction.

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.

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 ?

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.