Gantry crane
Double Trolley Gantry Crane for Long Loads | Heavy-Duty, Synchronized, CE-Compliant
Product Overview
The Heavy-Duty Double Trolley Gantry Crane is a specialized lifting solution designed for handling exceptionally long, heavy, and cumbersome loads with unparalleled stability and precision. This robust double-girder gantry crane features two independently controlled yet synchronizable hoist trolleys operating on the same set of rails. This dual-trolley configuration provides two stable lifting points, making it the ideal system for safely maneuvering materials like long pipes, girders, blades, and prefabricated sections in outdoor stockyards and large manufacturing facilities.
Product Advantages
- Superior Stability for Long Loads: By providing two distinct lifting points, the double trolley system prevents load rotation and bending, ensuring safe and stable handling of long, flexible, or awkwardly shaped materials.
- Synchronized and Independent Control: The two trolleys can be operated in perfect synchronization for standard lifts or controlled independently for complex maneuvers, such as adjusting the angle of a load or performing tandem lifts.
- Precision Handling with VFD: Standard Variable Frequency Drives (VFDs) on all motions provide smooth, stepless speed control. This is critical for precise positioning, minimizing load swing, and preventing shock during lifting operations.
- Engineered for Outdoor Durability: Designed for A5-A6 heavy-duty cycles and built with an IP55 protection rating and a durable anti-corrosion paint system, this crane delivers reliable performance in demanding outdoor environments.
- Enhanced Safety and Versatility: The dual-hoist setup offers operational redundancy and flexibility. It can function as two separate cranes for smaller loads or as one powerful, synchronized system for large ones, maximizing utility and safety.
Application Scenarios
- Precast Concrete and Bridge Girder Yards: Perfectly suited for lifting and transporting long concrete beams, bridge girders, and T-beams with complete stability.
- Steel Pipe and Structural Beam Manufacturing: Ideal for handling long steel pipes, H-beams, and other structural sections throughout the production and storage process.
- Wind Turbine Blade Handling: Provides the stable, wide-based support necessary for safely lifting and moving long and delicate wind turbine blades.
- Shipbuilding: An essential tool for lifting and positioning long hull sections, masts, and other large components during ship construction and repair.
- Lumber and Timber Yards: Efficiently handles long logs, bundles of lumber, and laminated wood beams in outdoor storage yards.
Product Specifications
| Parameter | Specification |
|---|---|
| Rated Capacity | 2 x 5t, 2 x 10t, 2 x 16t, 2 x 20t (Total capacity up to 80t+) |
| Span | 12 m to 35.5 m (Customized to your yard layout) |
| Max. Lifting Height | 6 m to 30 m (Customized as per demand) |
| Work Duty | A5–A6 (Medium to Heavy Duty) |
| Lifting Speed | 0.8–6 m/min (VFD controlled, speed varies with capacity) |
| Trolley Traveling Speed | 2–25 m/min (VFD controlled) |
| Crane Traveling Speed | 20–80 m/min (VFD controlled) |
| Hoist Type | Two synchronized Open Winch or Wire Rope Hoist Trolleys |
| Hoist Motor | Heavy-duty VFD-controlled motor with encoder feedback |
| Travel Motors | VFD-controlled gear motors for smooth travel |
| Control Methods | Cabin Control with dual joysticks, Wireless Remote Control |
| Power Supply | 3-Phase 380V/400V/415V/440V, 50/60Hz |
| Control Voltage | 24V / 36V / 48V (Safe control voltage) |
| Electrical Components | Schneider, Siemens, or equivalent with PLC for synchronization |
| Safety Devices | Overload limiter, synchronization monitor, anemometer, rail clamps |
| Working Temperature | -25°C to +40°C |
| Protection Class | IP55 |
| Paint/Finish | Sandblasted Sa2.5, epoxy primer, and polyurethane topcoat for outdoor use |
| Steel Grade | Q355B High-Strength Carbon Structural Steel |
| Wheel/End Carriage | Forged steel wheels; Heavy-duty box-girder end carriages |
| Rail Size (typical) | P43, QU70, QU80 (Recommended for the application) |
| Braking | Electromagnetic and/or hydraulic brakes on all movements |
| Limit Switches | Included for all hoisting and travel motions |
| Documentation | Certificate of Conformity, Test Reports, CE/ISO Certificates |
| Warranty | 1 Year |
| Lead Time | 15–60 days (negotiable for specific configurations) |
Features at a Glance
- Dual synchronized hoist trolleys for stable handling of long loads.
- Heavy-duty A5-A6 design for reliable outdoor performance.
- Standard VFD controls on all motions for ultimate precision and safety.
- Can be operated as a single synchronized system or as two independent cranes.
- CE-compliant, fully customizable solution for specialized lifting tasks.
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.
