Gearbox series
WD Series
WD Series winch drives are rotating-case planetary gearboxes designed specifically for hoist applications.
The family is configurable across ratio and input options and supports DNV/ABS approved lifting programs, with torque values from 4,000 to 380,000 ft-lbs.
4,000 to 380,000 ft-lbs nominal torque
Specifications
WD Series max output torque
Reference selection chart for nominal torque levels by WD model.
| Model | Torque (ft-lbs) | Torque (Nm) |
|---|---|---|
| WD 1023 | 13,358 | 18,100 |
| WD 1523 | 19,557 | 26,500 |
| WD 2003 | 25,165 | 34,100 |
| WD 2523 | 32,915 | 44,600 |
| WD 3003 | 35,720 | 48,400 |
| WD 4803 | 62,050 | 84,100 |
| WD 8003 | 87,085 | 118,000 |
| WD 12014 | 150,550 | 204,000 |
| WD 16004 | 199,262 | 270,000 |
| WD 21004 | 250,925 | 340,000 |
| WD 26004 | 309,960 | 410,000 |
| WD 31004 | 383,764 | 520,000 |
- WD 102313,358 ft-lbs (18,100 Nm)
- WD 152319,557 ft-lbs (26,500 Nm)
- WD 200325,165 ft-lbs (34,100 Nm)
- WD 252332,915 ft-lbs (44,600 Nm)
- WD 300335,720 ft-lbs (48,400 Nm)
- WD 480362,050 ft-lbs (84,100 Nm)
- WD 800387,085 ft-lbs (118,000 Nm)
- WD 12014150,550 ft-lbs (204,000 Nm)
- WD 16004199,262 ft-lbs (270,000 Nm)
- WD 21004250,925 ft-lbs (340,000 Nm)
- WD 26004309,960 ft-lbs (410,000 Nm)
- WD 31004383,764 ft-lbs (520,000 Nm)
Capabilities
Key features
Highlights curated from the official series page, adapted into a cleaner technical summary.
- Rotating-case gearbox architecture for winch drives
- External and optional negative static multi-disc brake
- Optional dry brake and sprag clutch support
- DNV and ABS lifting appliance approvals
- Internal passages to promote oil circulation
- Wide range of ratio combinations and input configurations
Accessories
Common options across the gearbox family
Accessory availability varies by model and configuration; final selection depends on application and integration requirements.
- Negative static multi-disc brakes
- NEMA and IEC electric motor inputs (RE / GB / HyPer families)
- Foot supports
- Torque arms and shrink discs
- Two-speed inputs and disconnects
- Water cooling jackets