Winch types

Functionality of hoisting winches, pulling winches, traversing winches, capstan winches, traction winches

Hoisting winches

If loads are to be lifted or held with an electric cable winch, hoisting winches must be used in accordance with the Machinery Directive. This directive must be implemented both for vertical lifting of loads and for pulling loads over inclined tracks with an angle of more than 10°. To ensure that loads are held securely, hoisting winches are equipped with a spring-applied brake on the motor. A cable winch designed as a hoist winch is designed with comparatively greater safety factors than a pure pulling winch.

Pulling winches

Pulling winches are used to pull loads across horizontal planes. In order to be able to optimally design a pulling winch, it is crucial to determine the weight to be pulled and to define the rolling resistance. For example, rubber wheels on a concrete floor have a rolling resistance of approx. 0.150 %, whereas the rolling resistance of steel wheels with roller bearings on railroad tracks is 0.005 %. The tractive force is calculated by multiplying the defined rolling resistance by the mass of the load to be pulled.

Traversing winches

With the help of stationary traversing winches and at least two deflection pulleys, it is possible to move loads in two directions on one level. The grooved drum of the winch is designed in two parts, with the ropes being wound in a single layer.

Traction winches

Traction winches are pull-through winches. Their functional principle is force amplification through wrap-around friction (similar to the pulley block principle). Traction winches are preferably installed on mobile, usually rail-mounted devices. The traction cable is tensioned along the entire route and is guided through two multiple grooved traction sheaves, the respective direction of rotation of which drives the vehicle forwards or backwards.

Capstan winches

Like traction winches, capstan winches are continuous winches. Capstan winches do not store rope on the rope drum. An “endless” rope is guided several times around the driven capstan head of the electric cable winch. The multiple wrapping multiplies the counterforce applied.

Capstan winches Like traction winches, capstan winches are continuous winches. Capstan winches do not store rope on the rope drum. An “endless” rope is guided several times around the driven capstan head of the electric cable winch. The multiple wrapping

As with wide-winding hose reels and cable reels, it is also important to ensure that the permissible deflection angle is not exceeded with a cable winch. For this reason, the cable is usually guided away from the reel via a permanently installed deflection pulley. To ensure trouble-free operation, the deflection pulley should be positioned in the center of the winding area of the cable drum. The distance between the rope drum and the deflection pulley depends on the ratio of the rope diameter to the drum diameter and the drum length.

Winch types

Functionality of hoisting winches, pulling winches, traversing winches, capstan winches, traction winches

Hoisting winches

Pulling winches

Traversing winches

Traction winches

Capstan winches

Capstan winches Like traction winches, capstan winches are continuous winches. Capstan winches do not store rope on the rope drum. An “endless” rope is guided several times around the driven capstan head of the electric cable winch. The multiple wrapping

Service

Products

Service

Company

Certified