Worm Gear Series — Model 465 & 4WM2.
Up to 2,000 lb Capacity
When you need to lift, lower or position a heavy load, Thern’s worm gear hand winches are designed to deliver excellent performance and long life, no matter what your application
Quick Facts
Series Models
| Series | Imperial | |||
| Load Rating | Brake | Drum Capacity | Force to Lift 1,000 lbs | |
| 4622PB | 1,000 lbs | Yes | 140 ft | 26 lbs |
| 4WM2 | 2,000 lbs | Yes | 77 ft | 14 1bs |
| 2W40-BM | 4,600 lbs | Yes | 200 ft | 11 lbs |
| Series | Imperial | |||
| Load Rating | Brake | Drum Capacity | Force to Lift 1,000 lbs | |
| 4622PB | 450 kg | Yes | 42 m | 12 kg |
| 4WM2 | 905 kg | Yes | 23 m | 7 kg |
| 2W40-BM | 2,085 kg | Yes | 60 m | 5 kg |
Worm Gear Hand Winches-Configurations and Performance Characteristics
| Model | Description | LOAD RATING | Wire Rope Dia.1 | DRUM CAPACITY 2 | Gear Ratio |
Force3 to lift 1,000 lb |
Approx. Ship Weight |
|||||||||||||
| 1st Layer | Mid Drum | Full Drum | 1st Layer | Mid Drum | Full Drum | |||||||||||||||
| (lb) | (kg) | (lb) | (kg) | (lb) | (kg) | (in) | (mm) | (ft) | (m) | (ft) | (m) | (ft) | (m) | (lb) | (kg) | (lb) | (kg) | |||
| 465 | 750 lb-open gears (recommended for pulling only) |
750 | 340 | 600 | 272 | 400 | 181 | 1/8 | 3.2 | 7 | 2 | 58 | 17 | 130 | 39 | 20:1 | 21 | 9.5 | 12 | 5 |
| 3/16 | 4.8 | 4 | 1 | 27 | 8 | 59 | 17 | |||||||||||||
| 462 | 1,000 lb-enclosed gearing (recommended for pulling only) |
1,000 | 453 | 700 | 317 | 500 | 226 | 1/8 | 3.2 | 7 | 2 | 61 | 18 | 140 | 42 | 15:1 | 34 | 15.4 | 15 | 7 |
| 3/16 | 4.8 | 4 | 1 | 28 | 8 | 61 | 18 | |||||||||||||
| 4622PB | 1,000 lb-enclosed gearing with brake (for lifting) |
1,000 | 453 | 700 | 317 | 500 | 226 | 1/8 | 3.2 | 7 | 2 | 61 | 18 | 140 | 42 | 15:1 | 26 | 11.8 | 21 | 10 |
| 3/16 | 4.8 | 4 | 1 | 28 | 8 | 61 | 18 | |||||||||||||
| 472 | 2,000 lb-enclosed gearing (recommended for pulling only) |
2,000 | 907 | 1,700 | 771 | 1,300 | 589 | 3/16 | 4.8 | 15 | 4 | 65 | 19 | 140 | 42 | 24:1 | 24 | 10.9 | 32 | 15 |
| 1/4 | 6.4 | 11 | 3 | 35 | 10 | 77 | 23 | |||||||||||||
| 5/16 | 7.9 | 8 | 0 | 23 | 7 | 52 | 15 | |||||||||||||
| 4WM2 | 2,000 lb-enclosed gearing with brake (for lifting) Drill Driveable* |
2,000 | 907 | 1,500 | 680 | 1,200 | 544 | 1/4 | 6.4 | 11 | 3 | 35 | 10 | 77 | 23 | 32:1 | 14 | 6.4 | 41 | 19 |
| 3/16 | (not recommended for this winch) | |||||||||||||||||||
| 2W40-L | 4,000 lb-enclosed gearing (recommended for pulling only) |
4,000 | 1,814 | 2,800 | 1,270 | 2,200 | 997 | 5/16 | 7.9 | 18 | 5 | 91 | 27 | 200 | 60 | 26:1 | 18 | 8.2 | 126 | 58 |
| 3/8 | 9.5 | 14 | 4 | 65 | 19 | 140 | 42 | |||||||||||||
| 2W40-BL | 4,000 lb-enclosed gearing with brake (for lifting) |
4,000 | 1,814 | 2,800 | 1,270 | 2,200 | 997 | 5/16 | 7.9 | 18 | 5 | 91 | 27 | 200 | 60 | 145 | 66 | |||
| 3/8 | 9.5 | 14 | 4 | 65 | 19 | 140 | 42 | |||||||||||||
| 2W40-M | 4,600 lb-enclosed gearing (recommended for pulling only) Drill Driveable* |
4,600 | 2,086 | 3,300 | 1,496 | 2,500 | ,133 | 5/16 | 7.9 | 18 | 5 | 91 | 27 | 200 | 60 | 31:1 | 11 | 5.0 | 123 | 56 |
| 3/8 | 9.5 | 14 | 4 | 65 | 19 | 140 | 42 | |||||||||||||
| 2W40-BM | 4,600 lb-enclosed gearing with brake (for lifting) Drill Driveable* |
4,600 | 2,086 | 3,300 | 1,496 | 2,500 | ,133 | 5/16 | 7.9 | 18 | 5 | 91 | 27 | 200 | 60 | 141 | 64 | |||
| 3/8 | 9.5 | 14 | 4 | 65 | 19 | 140 | 42 | |||||||||||||
Please contact Thern or nearest Thern Distributor for firm fixed price and delivery.
1Actual drum capacities may be 25-30% less due to nonu niform w inding. Wire rope tension w ill also affect drum capacity.
2Approximate handle force required to lift 1,000 lb with an empty drum and maximum handle length.
Drill Drive Performance Characteristics
| Winch Model | Wire Rope Diameter | Load (lbs) |
Distance (ft) |
Lift Time (minutes) |
|
| ED330-DW11 and ED300-DW06 |
4WM2 | 1/4″ | 500 | 135* | 15 |
| 1,000 | 75 | 10 | |||
| 1,500 | 45 | 7 | |||
| 2W40 | 5/16″ | 500 | 200 | 15 | |
| 1,000 | 100 | 9 | |||
| 1,800 | 50 | 5 | |||
| ED400-DW09 | 4WM2 | 1/4″ | 800 | 200* | 15 |
| 1,200 | 90 | 10 | |||
| 1,500 | 45 | 7 | |||
| 2W40 | 5/16″ | 1,000 | 200 | 12 | |
| 2,000 | 100 | 7 | |||
| 2,500 | 50 | 4 |
*Long lift model
Machine Cut Spur Gears
For accurate and long lasting service.
Enclosed Oil Bath
Provides continuous lubrication of gears to minimize wear (except on Model 465). On Model 4WM2, oil seals keep oil in and dirt out.
Hex Drive and Handle
Hex drive and handle are included. Model 4WM2 can be power driven with a maximum 300 rpm drill-motor.
Automatic Brake Models
Provide positive load control for lifting. Brake models have a PB or B suffix. Model 4WM2 features an internal mechanical brake.
Corrosion Resistant
Durable paint finish protects against corrosion in harsh environments.
Bronze Bearings
On most models for smooth operation.
Large Diameter Drums
Minimize wear to extend wire rope life.
Adjustable Handles
Handles adjust in length to change force required to move the load.
Mounting Options
Include floor, wall, or ceiling mounting. Adapter plate may be required. Contact factory.
Two-Year Warranty
Industry-leading two-year limited warranty on all our products.
WARNING: Prop 65: Products supplied by CERTEX USA may expose you to chemicals including Nickel, which is known to the State of California to cause cancer. For more information, visit to www.P65Warnings.ca.gov.
The dynafor® HHD is a complete and versatile handheld display.
Universal, the dynafor® HHD can be connected to our dynafor® Pro, dynafor® Expert and dynafor® Transmitter WL. Up to 4 units can be simultaneously connected.
Equipped with a colour-LED display, the dynaforTM HHD can reach a wireless range of 1,300 ft. (400 m). The dynaforTM HHD offers multiple functionalities, suitable to any application.
The dynarope® tension meter is a precision device for measuring forces in a tensioned cable or rope. The meter can be attached directly to the cable and has a fixed display.
When the tension meter is placed on a tensioned cable, the load cell will generate a signal which is more or less proportional to the force.
The HF 37 series can be connected to a PC for managing and storing measurement results.
There is a large variety of cables, each cable having its own characteristics such as composition, diameter, rigidity, density, etc. The database includes several basic wire rope data. We are happy to help you choose the right model and parameter settings in our wire rope database.
The dynarope® HF 36 is an electronic load cell that has been designed to measure the effort applied in a wire rope. The resulting signal is used in a digital remote display (model HF 87/T/LPT) controlled by a microprocessor, which corrects the force information according to the wire rope specification and displays the result of the measurement on a LCD display.
Several wire ropes specifications are logged in a data bank.
The dynasafe® HF 05 mechanical load cell has been designed to provide a trip point in lifting systems, which have a dead-end wire rope. The trip point load limiter generates an “all or nothing” type signal in the event the programmable target value is exceeded. Available in one or two thresholds versions.
The load cell is preferable for fitting applications where it is essential to minimize the lost headroom.
