Dual Drum Synchronous Winch for Smart Crane C-Axis Drive Manufacturer | 7 Ton Automated Lifting Solution


1. Project Background & Industry Challenge
In automated manufacturing environments such as lights-out factories, crane systems are no longer isolated lifting devices. They are integrated into precision-controlled production lines, where lifting stability directly affects process accuracy.
In this project, the crane system operates under:
- Rated lifting capacity: 7 tons
- Lifting speed: 7 m/min
- Travel speed: 20 m/min
- Duty classification: M8 (high-duty, continuous operation)
Under such conditions, conventional winch systems typically face:
- Uneven load distribution in multi-rope configurations
- Asynchronous rope movement causing load swing
- Accelerated wire rope wear due to misalignment
- Limited reliability in unattended operation
These issues make standard winches unsuitable for C-axis driven smart crane systems.
2. Client’s Core Technical Requirements
The client required a solution capable of:
- Synchronous lifting with four ropes
- Stable operation under high-frequency duty (M8)
- Integration with automated control systems (PLC/C-axis drive)
- Minimal load swing for precision handling
- Long-term unattended operation (lights-out factory)
- Compact design combining hoisting and traveling functions
3. KLD Engineered Solution

KLD (Beijing Tianheng Kairui) provided a dual drum synchronous winch integrated with a transfer trolley, designed specifically for automated crane systems.
Key Configuration:
✔ Dual Drum Mechanical Synchronization
- Two drums driven in synchronized motion
- Eliminates dependency on electronic synchronization compensation
- Improves consistency in rope winding
✔ Four-Rope Load Distribution System
- 4 × Φ20mm 6×19S IWRC wire ropes
- Balanced load sharing across lifting points
- Reduced structural stress and swing
✔ Integrated Drive Unit
- Approx. 11 kW geared motor
- K-series gearbox configuration
- Stable torque output for continuous duty cycles
✔ Integrated Transfer Trolley Design
- Winch + trolley combined into a single assembly
- Total system weight approx. 12 tons
- Reduced installation tolerance stack-up
✔ Automation Compatibility
- Designed for PLC and motion control integration
- Suitable for multi-station coordinated operation
4. Technical Specifications


| Item | Specification |
| Rated Load | 7 Ton |
| Lifting Speed | 7 m/min |
| Travel Speed | 20 m/min |
| Duty Class | M8 |
| Drum Type | Dual Drum |
| Wire Rope | Φ20mm, 6×19S IWRC, 1570 MPa |
| Motor Power | ~11 kW |
| Winch Assembly Weight | 2346.86 kg |
| Trolley Weight | 4543.59 kg |
| Total System Weight | ~12,000 kg |
5. Design Highlights
✔ Structural Synchronization
Mechanical linkage ensures consistent drum rotation, reducing synchronization error at the source.
✔ Key Component Reliability
- Q345 welded drum structure
- Heavy-duty bearings (e.g., UCP series)
- High-strength IWRC wire ropes
✔ Reduced Rope Wear
Guide rollers and controlled winding paths minimize abrasion and misalignment.
✔ Continuous Duty Capability
Designed for M8 classification, suitable for repetitive heavy-load cycles.
✔ System Integration
Supports integration into automated crane control architectures.
6. Application Scenarios
This solution is suitable for:
- Smart manufacturing lines
- Automated crane systems
- Precision lifting in assembly processes
- Multi-station material handling systems
- Lights-out factory environments
7. Project Value
The implemented system achieves:
- Reduced load swing during lifting
- Improved positioning accuracy
- Lower maintenance frequency
- Extended wire rope service life
- Compatibility with unattended operation
8. Manufacturer Capabilities (KLD Winch)
- Manufacturer Direct Supply → Reduced procurement cost, no intermediary margin
- Customized according to CAD/PDF drawings → Fully adaptable to project requirements
- ISO-based production process (aligned with GB/T and international standards)
- Engineering support from design to commissioning
9. SEO Long-tail Keywords
- dual drum synchronous winch for crane
- four rope lifting winch system
- automated crane winch manufacturer
- C-axis drive winch solution
- heavy duty industrial winch for sale
10. Request a Quote
If you are sourcing a dual drum winch for automated crane systems or need a custom lifting solution, KLD provides engineering support and manufacturing services.
Request a Quote with the following details:
- Load capacity
- Rope length and configuration
- Duty cycle
- Installation layout (CAD/PDF preferred)
11. Procurement FAQ
Q1: What is the difference between a four-rope synchronous winch and a standard winch?
A four-rope synchronous system ensures balanced lifting, minimizes load swing, and is suitable for high-precision automated applications.
Q2: Can the winch be used in unmanned (lights-out) factories?
Yes. This solution supports PLC control and integration with automated systems, making it suitable for lights-out factory operations.
Q3: What are the advantages of a dual drum design?
A dual drum structure enables synchronized driving, ensuring consistent wire rope winding and improved operational stability.
Q4: Is the equipment suitable for continuous high-frequency operation?
Yes. The system is designed to meet M8 duty classification, making it suitable for heavy-duty and high-frequency applications.
Q5: Can you customize a C-axis driven winch?
Yes. KLD provides customized solutions based on project requirements, including C-axis drive systems and synchronous control configurations.