Product Parameters
Parameter |
Standard Range |
Capacity |
5-500+ tons |
Span |
10-40 m |
Lifting Height |
6-50 m |
Speed (Lifting) |
0.5-20 m/min (VF control) |
Speed (Trolley) |
5-50 m/min |
Speed (Bridge) |
10-100 m/min |
Power Supply |
380V/415V, 50/60Hz |
Control Mode |
Pendant / Remote / Auto |
Duty Class |
FEM 3M-4M (ISO M6-M8) |
Ambient Temp. |
-20°C to +50°C |
Product Description
The Double Trolley Double Girder Overhead Crane is a heavy-duty lifting solution designed for high-efficiency material handling in demanding industrial environments. This crane features two parallel girders supported by end trucks, with two independent trolleys that run along the bridge, allowing for simultaneous or sequential lifting operations.
Each trolley is equipped with a high-capacity hoist, enabling the crane to handle multiple loads independently or in coordination. The crane operates on elevated runways, maximizing floor space utilization while providing exceptional lifting capacity (typically ranging from 5 tons to over 500 tons).
Application Scenarios
Steel & Metal Processing - Handling coils, slabs, and large metal sheets.
Power Plants - Lifting turbines, generators, and heavy machinery.
Shipbuilding & Ports - Moving large ship components and containers.
Automotive Manufacturing - Transporting vehicle parts and assemblies.
Heavy Machinery & Construction - Assembling large structural components.
Warehousing & Logistics - Managing bulky or multiple loads simultaneously.

Our Advantages
Increased Productivity - Two trolleys enable parallel lifting operations, reducing idle time.
Higher Load Capacity - Double girders provide greater strength than single-girder cranes, supporting ultra-heavy loads.
Space Optimization - No floor obstructions, allowing full workshop utilization.
Precision & Control - Smooth movement with variable speed options for accurate positioning.
Reduced Downtime - Independent trolleys allow maintenance on one system while the other remains operational.
Enhanced Safety - Redundant braking, overload sensors, and collision avoidance systems.
Customizable Configurations - Adjustable span, lifting height, and automation integration available.
Long Service Life - Built with wear-resistant materials for minimal maintenance.
Packaging & Shipping
To ensure safe and damage-free transportation, cranes must be securely packaged in heavy-duty wooden crates or steel frames, with critical components like hoists and girders disassembled if oversized and properly strapped. Electrical systems and sensitive parts should be wrapped in waterproof, anti-corrosion materials, while all packages must be clearly labeled with weight, center of gravity, and lifting points. During transit, components must be firmly fastened using chains or straps to prevent shifting, with special attention given to corrosion protection for sea freight and route planning for oversized shipments. These measures guarantee that cranes arrive in optimal condition for assembly and operation.
FAQ
Q1: What's the informtion should l provide when inquiry?
The more details or drawings, the better. Such as Lifting capacity, Lifting height, Span, Voltage or others special requirements.
Q2: Can you provide custom service?
Yes, of course. We are manufacturer and we have our own engineer group They can out customized design according to your requirement. You just need to tell us your requirements.
Q3: Are there professional technicians to assist in the installation?
Yes.We have a professional installation team and have been to many countries to assist in installation. lf you need us to provide this service, please let us know in advance and we will provide you with the best solution.
Q4: How do you guarantee the quality?
We will constantly check the quality during the manufacturing process, and strictly test the equipment before shipment, and we will also send you aquality certificate.