Wheel winch, this is a relatively new capstan system, which provides the driving force by the wheel shafts. The principle is to use 4 of the 6 fixed screws on most of the off-road wheels to secure the capstan. Advantages: installation / disassembly is extremely simple (and change the tire is a step), light weight (all lighter than any other kind of winch will not be suspended before bring extra weight to death), the price is cheap, can provide double direction tension. Disadvantages: what I know about the disadvantages is that, because of the strength of the axle, the position is so low that it can not be used under some conditions, and the engine power must also be used.
Manual capstan, with manual longitudinal or circumferential movement as the driving force of the capstan, due to manpower work limit, usually manual winch pulling force is not big. Pneumatic winches are designed and operated the same way as hydraulic winches, but power is changed from compressed liquid to compressed gas.
PTO winch, use transfer case output power as the power source (POWER TAKE OFF), can continue to provide advantages: large tension, single use long time (there is no heating problem, can provide the direction of force) (before and after, or around), is a serious military vehicle or high performance off-road best choice. Disadvantages: must use the engine power in the engine can not be used due to water and other reasons can not work; transfer case lost winch direction driving force can not be used. The oil pressure winch uses the power / power steering system of the vehicle as its power source, and uses the power assisted steering pump to provide the power source. Advantages: easy installation, because of its external fixed parts of the basic realization of universal, and even in the field can be interchangeable, driving force between the electric and PTO winch, the occurrence of high temperature opportunities are extremely rare. Disadvantages: like PTO winch, must use the driving force of the engine, the engine must keep turning, and once the power steering system failure cannot be used (in off-road conditions, power steering systems are vulnerable to external damage).
According to the capstan power, there are six main types: electric capstan, the most common capstan. The advantages depend on power system of vehicle driving winch: can the basic normal use in vehicle dead fire case (this is the biggest advantage is unmatched by other winch), especially have a great advantage to water area, simple installation can achieve multi position installation and rapid shift. Disadvantages: can not sustain a long time of use (vehicle power system limitations, its easy to heat and other reasons), most electric winch can provide the driving force is small, can only exert force in one direction (installed in the car can only be pulled forward, installed in the rear can pull back).
