Winches & Cranes

Winches are machines used for lifting or dragging loads, which exert their forces by means of one or more cables wound around a drum connected to a power transmission system.

Winches are generally used in the crane market, for handling materials. However, there are some special applications where the winch is used to move people and property (goods and passenger lifts), mechanical booms and buckets (excavators, draglines, etc.), curtains and stages (theatres and stadia), keep a vessel moored (pipeline laying vessels) or support the weight of a drill (on-shore and off-shore oil & gas drilling rigs).

The fact that winches are used in such widely varying markets - shipping, marine, industrial, oil & gas and entertainment - has encouraged Coremo Ocmea to extend its offering of braking systems and acquire more and more specific competences. Brakes must ensure the highest level of system safety during all working phases and in all environmental circumstances.

The braking system is therefore a fundamental component, which comes into operation not only in emergencies but also during handling or lowering of the load, when the brake generates a torque that counters the movement to ensure controlled, continuous lowering. The size of the brakes installed on winches depends on the type of duty, static or dynamic - holding, continuous slipping and continuous and cyclic stopping.

The Coremo Ocmea staff select the type and size of the brakes to be used on the basis of the specifications of every application. Safety coefficients, suitable friction materials, potentially explosive environment certifications, parts with anti-corrosion coating, special materials for use in low-temperature environments (-40 °C), On/Off sensors, and thermodynamic and fluid-dynamic analyses, are just some of the factors to be considered when selecting brakes for installation on winches.

Due to the heavy weights involved, hydraulic brakes are the most widely used.