40.5 Ton RMG Crane for Container Handling | Yuantai Cranes
40.5 Ton Container Gantry Crane Technical Specifications
This is a rail mounted container gantry crane (RMG) designed for container handling and stacking operations.
Main Specifications
| Item | Specification |
|---|---|
| Crane Type | Rail Mounted Container Gantry Crane (RMG) |
| Rated Capacity | 40.5 ton (Under Spreader) |
| Span | 35 m |
| Cantilever | Single Side Cantilever, 7.5 m |
| Lifting Height | 12.5 m |
| Stacking Capacity | Over 4 containers high |
| Control System | VFD Speed Control System |
Operating Speeds
Hoisting Speed
- Full Load: 20 m/min
- No Load: 40 m/min
Long Travel Speed (Crane Travel)
- Full Load: 60 m/min
- No Load: 120 m/min
Trolley Travel Speed
- Full Load: 60 m/min
- No Load: 90 m/min
Drive System
Crane Travel Drive
The crane adopts an 8-wheel drive system with 8 independent motors, providing stable operation and reliable traction.
- Drive Type: Three-in-one geared motor
- Quantity: 8 drive units
Equipped with:
- Travel buffers
- Wheel assemblies
- Independent drive mechanisms
The multi-drive configuration improves:
- Load distribution
- Travel stability
- Anti-skew performance
Structural Features
Leg Clearance
- Clear width between legs: 15 m
The 15 m clear opening allows containers and transport vehicles to pass through easily, providing convenient loading and unloading operations under the cantilever side.
Cantilever Design
- Single-side cantilever structure
- Cantilever length: 7.5 m
The cantilever design expands the crane working area and improves container handling flexibility outside the rail span.
Spreader System
The crane is equipped with a hydraulic container spreader manufactured by Shanghai Zhenhua (ZPMC).
Features:
- Hydraulic telescopic spreader
- Automatic container locking system
- Anti-sway control system
Anti-Sway Technology
The crane adopts:
- Eight-rope crossed anti-sway system
- Resistance-based anti-sway control technology
No additional external anti-sway ropes are required.
This system effectively reduces:
- Container swinging
- Positioning time
- Operator workload
Control System
The complete crane adopts:
BAP Variable Frequency Drive (VFD) Control System
Advantages:
- Smooth acceleration and deceleration
- Reduced mechanical impact
- Higher positioning accuracy
- Improved energy efficiency
