QE Double Trolley Overhead Crane

The QE Double Trolley Overhead Crane is a heavy-duty lifting solution designed for handling long, bulky, or exceptionally heavy loads requiring two lifting points. Equipped with two trolleys that operate independently or simultaneously, this crane enhances flexibility and efficiency in industrial settings. Below is a detailed overview of its features, specifications, and applications:

Key Features

1. Dual Trolley System:

• Independent or synchronized operation: Allows simultaneous lifting of two loads or balancing of long materials (e.g., pipes, steel bars, logs).

• Equal capacity trolleys: Each trolley typically has the same lifting capacity, ranging from (2.5+2.5) tons to (200+200) tons

2. Double Girder Design:

• Robust construction: Welded box girders made of high-quality steel (Q235B/Q345B) ensure stability and durability

• Span flexibility: Adjustable spans from 10.5 to 35.5 meters (extendable to 50 meters for custom designs).

3. Safety and Control:

• Safety mechanisms: Overload protection, emergency stops, limit switches, and anti-collision systems.

• Control options: Cabin, pendant, or remote control for operational flexibility.

4. Customization:

• Configurable lifting heights, speeds, and ambient temperature ranges (e.g., -25°C to +40°C).

Technical Specifications

Applications

1. Steel Mills & Foundries: Handling steel coils, pipes, and long metal bars.

2. Warehouses & Stockyards: Efficient stacking/retrieval of logs, paper rolls, and construction materials.

3. Ports & Shipyards: Loading/unloading long cargo (e.g., timber, pipes).

4. Manufacturing Facilities: Assembly of large machinery or structural components.

Advantages

1. Operational Flexibility:

• Dual trolleys enable handling of oversized or irregularly shaped loads.

2. Cost Efficiency:

• Reduces labor and time by eliminating the need for multiple cranes.

3. High Stability:

• Double girder structure and separate drive mechanisms ensure smooth operation under heavy loads.

4. Safety Compliance:

• Complies with FEM, DIN, and ISO standards for reliability in harsh environments.

Comparison with Single Trolley Cranes

Selection suggestion

Load and span matching: the main beam structure should be selected according to the span of the plant (box beam is suitable for large span, and the cost of truss beam is lower);

Control mode priority: PLC+ wireless remote control is recommended for frequent collaborative work scenarios.

Easy maintenance: The modular design enables quick replacement of parts, and the maintenance-free wheels (polyurethane rims) reduce downtime.

For further technical details of the specific model (such as explosion-proof certification process or customized functions), please provide the specific parameters of the application scenario (such as ambient temperature, daily use frequency, etc.).