Common Advantages to Both Single and Double Drum
- HI-STRENGTH ALUMINUM GEAR HOUSING
- LIGHTWEIGHT REVERSIBLE MOTOR
- DOUBLE REDUCTION WORM GEARING
- BALL AND ROLLER BEARINGS
- SEALED GEARS
- EASY MOUNTING
Patented trigger-duodynamic™ electrical braking in conjunction with reversible universal motor plus double reduction self-locking worm gearing gives the operator safer control.
Single Drum Winch Features
- SIMPLE CABLE ATTACHMENT
- LARGE 3 INCH DIAMETER FOR LONGER CABLE LIFE
Single Drum Winches
Series | Drum Cable Layer | Lift Capacity (lbs.) | Line Speed (ft./min.) | ||
In | Out | No Load | |||
1200 | 1st Full | 1200 700 | 17 25 | 37 54 | 28 41 |
700 | 1st Full | 700 400 | 34 50 | 76 112 | 56 82 |
IMPORTANT:
1) First cable layer should have at least the first five wraps not in use. 2) Each additional cable layer reduces capacity. A block and tackle arrangement doubles capacity and cable on drum but reduces line speed by one-half.
Double Drum Winch Features
- SPECIALLY GROOVED STEEL DRUMS
- HEAVY DUTY DRUM SUPPORT BEARINGS
Double Drum Winches
Series | Drum Cable Layer | Lift Capacity (lbs.) | Line Speed (ft./min.) | |
Full Load | No Load | |||
1200 | Continuous | 1200 | 17 | 28 |
700 | Continuous | 700 | 34 | 56 |
INCLINE DATA:
All winches can pull much greater loads than they lift. (Ex: Series 1200, using first cable layer, can pull 15,200 lbs. running on casters up a 5% grade. This considers a 3% rolling friction.)
Line Speed will vary with voltage input. Figures are based on line voltage at motors (115v or 230v).
Cable on Drum
Cable Diameter (inches) | Drum Capacity (feet) | Breaking Strength (lbs.) |
1/8 | 512 | 2,000 |
5/32 | 325 | 2,800 |
3/16 | 215 | 4,200 |
7/32 | 165 | 5,600 |
1/4 | 135 | 7,000 |
Galvanized aircraft cable, 7 x 19, is recommended for strength and flexibility.
IMPORTANT: Cordem specifies a minimum cable safety factor of 5:1 and a Safety Latch on all hooks.
