Double drum electric windlass is mainly used to lift and pull heavy objects in civil construction, road and bridge projects, mining area, factory, wharf, marine, etc. Installation and disassembly of all kinds of big or special big size reinforce concrete, steel structure and machinery equipments, drag ships, the features are orderly wire rope, safe and reliable lifting.
It features two drum winches for orderly rope handling and reliable performance. With user-defined lifting heights, smooth speed control (single or variable-frequency drive), and built-in protection systems, this windlass offers both safety and flexibility. Common power options include 220 V, 380 V, 400 V, and 415 V with Siemens electric components ensuring dependable operation.
Many winch types are available depending on the application and power source—electric, hydraulic, or manual—each designed for tasks from industrial lifting to marine and construction use.
Double Drum Electric Windlass Specification
| Model | Capacity (KN) | Lifting height(m) | Lifting speed (m/min) | Pulley magnification | Lifting points space(m) | Voltage |
| JM-2*50 | 2*50 | 4-7 | 1.47 | 2 | 2-7 | 380V 50HZ, 3P A.C |
| JM-2*80 | 2*80 | 5-10 | 2.2 | 2 | 2-7 | |
| JM-2*100 | 2*100 | 5-10 | 2.2 | 2 | 2-7 | |
| JM-2*125 | 2*125 | 5-11 | 2.57 | 2 | 2.1-8 | |
| JM-2*160 | 2*160 | 5-11 | 2.57 | 2 | 2.1-8 | |
| JM-2*250 | 2*250 | 6-12 | 2.44 | 2 | 2.5-9 | |
| JM-2*400 | 2*400 | 5-9 | 1.95 | 4 | 3.1-10 | |
| JM-2*630 | 2*630 | 10-13 | 1.5 | 6 | 4.1-11 | |
| JM-2*800 | 2*800 | 10-13 | 1.47 | 6 | 4.1-11 | |
| JM-2*1000 | 2*1000 | 8-11 | 1.25 | 8 | 4.5-12 | |
| JM-2*1250 | 2*1250 | 8-15 | 1.19 | 8 | 4.5-13 |
FAQs
The double drum windlass is widely used in:
*Construction engineering – lifting steel bars, concrete blocks, scaffolding.
* Road & bridge projects – pulling prefabricated beams, assisting in bridge deck installation.
* Mining industry – transporting heavy equipment and ore.
* Marine & shipyard – mooring, towing, and positioning of ships.
* Factory workshops & power stations** – equipment installation and maintenance.
* Voltage drop protection for safe shutdown during unstable power supply.
* Reliable braking system ensuring secure load holding.
* Emergency stop functions and optional remote control.
* Compliance with CE / ISO standards** for international safety requirements.
* Installation: should be done on a firm, level foundation with secure anchor bolts. Electrical wiring must follow IEC/ISO standards.
* Maintenance:
* Regular lubrication of gears and wire ropes.
* Inspection of motor, brakes, and drum wear.
* Checking electrical components (contactors, relays, frequency inverter).
* Replacement of worn wire ropes in time.
A professional after-sales team can provide installation guidance and training.
When selecting a double drum electric winch, users should consider maximum load capacity, duty cycle, site environment, and available power supply. For heavy-duty continuous operations, a high-power motor with frequency conversion control is recommended to enhance both efficiency and safety. After-sales support is equally essential—manufacturers typically provide a one-year warranty for main components, spare parts supply, remote technical guidance, and operator training to guarantee long-term stability of the equipment.
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