General purpose overhead crane
Weiyuan QD Hook Overhead Crane for High-Capacity Industrial Workshop Lifting

Product Overview
The Weiyuan QD Hook Double Girder Overhead Crane is an industrial-grade indoor lifting solution specifically engineered for high-capacity, heavy-duty workshop operations. Utilizing a rigid box-section double girder structure verified by Finite Element Analysis (FEA), this overhead bridge crane delivers exceptional structural stability and torsional resistance under severe mechanical loads. Equipped with an open winch crab trolley, high-torque hardened gear reducers, and Variable Frequency Drive (VFD) controls, the QD crane ensures smooth, millimeter-level load handling. As Weiyuan’s signature heavy-duty overhead crane, it provides the reliability and continuous lifting power required for demanding environments like heavy machinery plants, foundry workshops, and structural steel processing bays.
Product Advantages
High-Capacity Double Girder Rigidity: Engineered with FEA-optimized double box girders and rigid end carriages, providing minimal deflection and uniform stress distribution during heavy lifts.
Heavy-Duty Open Winch Trolley: Features an industrial open winch crab trolley with hardened gearboxes, high-tensile wire rope, and double block brakes for long-lasting A5-A8 duty cycles.
Millimeter-Precision VFD Control: Optional Variable Frequency Drives across hoisting, trolley, and bridge travel mechanisms ensure smooth acceleration, zero-shock starting, and precise load positioning.
Robust Building Space Utilization: Compact end carriage and trolley dimensions maximize hook coverage across the workshop bay, reducing blind spots near building columns.
Tailored Engineering Parameters: Fully configurable bridge span, lifting height, wheel load specs, and travel speeds to match custom workshop runway beams and building clearances.
Application Scenarios
Heavy Machinery Assembly Plants: Moves massive industrial components, engine blocks, and machine beds across assembly bays with high positioning accuracy.
Steel Mills & Service Centers: Efficiently handles heavy steel coils, slabs, plates, and structural billets using heavy-duty hook attachments.
Paper Mills & Process Industries: Provides precise, continuous overhead lifting for heavy rollers, equipment maintenance, and material processing lines.
Power Stations & Energy Facilities: Essential for installing and servicing heavy turbines, generators, and large transformers during plant maintenance outages.
Foundry & Smelting Workshops: Configurable with heat-shielded enclosures and high-temperature insulation for transferring molten metal and heavy molds.
Product Specifications
| Parameter | Specification |
|---|---|
| Brand | Weiyuan |
| Rated Capacity | 5t to 500t (Customizable for heavier loads) |
| Span | 7.5m to 35m (Customized to workshop dimensions) |
| Max. Lifting Height | 6m to 30m (Customized) |
| Work Duty | A5–A8 (Heavy Duty to Severe Duty) |
| Structure | QD Type Double Girder Overhead Bridge Crane |
| Lifting Mechanism | Heavy-duty open winch crab trolley with forged hook |
| Crane Traveling Speed | 20–45 m/min (VFD stepless control available) |
| Trolley Traveling Speed | 20–40 m/min (VFD stepless control available) |
| Control Methods | Ergonomic Cabin Control, Wireless Remote, Pendant Control |
| Power Supply | 3-Phase 380V/400V/415V/440V, 50/60Hz via safety conductor bar |
| Electrical Components | Siemens, Schneider, ABB or equivalent premium brands |
| Safety Devices | Overload limiter, dual travel limiters, emergency stop, buffers |
| Working Temperature | -20°C to +40°C (Up to +60°C for foundry configuration) |
| Protection Class | IP54 / IP55 indoor rating |
| Steel Grade | Q235B / Q355B High-Strength Carbon Steel |
| Warranty | 1 Year |
| Lead Time | 35–60 days (Negotiable) |
Features at a Glance
Double-girder QD bridge crane engineered for heavy workshop duty cycles (A5-A8).
Robust open winch trolley mechanism with high-strength forged steel hook.
Full VFD stepless control for precise load placement and sway prevention.
Customizable span, wheel load, and building clearance configurations.
Ideal for heavy machinery plants, steel mills, power stations, and assembly bays.

FAQ
- What’s the information should I provide when inquiry?
More details or drawings, better. A: Lifting capacity B: Crane span C: Lifting height / hook clearance D: What material to lift E: Power source or workshop runway details. - How many operating methods for my selection?
Standard operating methods: A: Pendent controller with push buttons. B: Wireless remote control. C: Fully enclosed climate-controlled operator cabin. Choose any type as you like. - Can this type work in hazardous or high-temperature environments?
Sure! We can supply specialized high-temperature insulation, explosion-proof, or metallurgy configurations for foundry and chemical plants. - What about warranty time?
Standard warranty period covers 12 months under normal operation according to industry standards. - How can we install the crane?
Our senior engineer can be your side to do the installation guide service, runway alignment inspection, and operator training. - May I visit your factory?
Of course. We can pick you up at the airport, high-speed rail station, and arrange hotel accommodations for you.