Coremo Ocmea has been active on this market since 1960, when its business was in its infancy; at that time, it was already offering a vast range of multi-disc brakes and clutches, especially low inertia and water-cooled types with steel or copper discs. Subsequently, with the introduction of pneumatic caliper brakes, Coremo extended its offering to satisfy the requirements of higher and higher-performing machinery. For examples, nowadays brakes with high torques and thermal capacities are installed in rolling mills, plants for the mechanical or chemical surface finishing of sheet metals, cutters, extruders and flying shears, to name just a few.
Brakes are used for various types of duty: some are dynamic, such as continuous slipping, to apply resistant torque to control the movement of materials, or emergency stopping, for the immediate or gradual halting of moving parts, while others are static, such as the parking braking of machinery, or braking to hold a load in a given position.
Depending on the specific applications, brakes may be oil-applied/air-actuated or spring-applied/failsafe.
Heavy loads, high torques and high speeds generate considerable thermal energy, which must be dispersed during the braking action to conserve the brake’s efficacy and its technical characteristics. High temperature causes an irreversible structural physical change in brake linings, known as vitrification.
This phenomenon shortens the lifetime both of the linings, by reducing the friction coefficients and clamping torque, and of the brake discs.
When particularly high thermal powers are involved, water-cooled multi-disc or large-sized caliper brakes are generally used.