General Information Chassis Mounted Units Transmission Concept Axle Retarder Technical Specifications Enquiry Details

What is an Electro Magnetic Retarder

Based on the Foucault theory, the eddy currents create in the circuitry of coil, pole and rotor a magnetic field which is used to decrease the rotation of the driveline without any friction or wear. The electro magnetic retarder is autonomous and driven by the driveline, which does not depend on engine performance and / or transmission gear. The electro magnetic retarder does not have any limitations due to the cooling capacity of the engine nor is an additional cooling circuit required.

The retarders that we at Industrial Brake & Friction offer are imperative to the equipment used in the mining, earth-moving and industrial markets. We realise that you need to know information about what you require immediately, and Industrial Brake & Friction will cater now for this via the Internet.

A list of specific types of equipment we are able to supply retarders for are noted below:

The 16 coil series of retarder has been developed to be fitted into the chassis between the gearbox and the rear-driving axle. It's the best choice when there is enough room between the axles and maximum braking is required. Our technical personnel will assist in selecting the most suitable unit for your application based on GVW, axle ratio and working conditions

This 16 coil series has been developed to be fixed in the chassis between the gearbox and the rear-driving axle. The FF series doesn't have a central shaft therefore it's the best choice when maximum braking is required and there is limited room between the axles due to obstacles such as cross members and air tanks.

Specially suited for semi trailers the  axle retarder is substituted for one of the loading axles.

General Information

Today's modern vehicles have evolved to become sleek and powerful workhorses thanks to modern designs.

Improved aerodynamics, tyres with less rolling resistance, improved lubricants and greater horsepower are many features of the modern truck. However when we look at the basic foundation braking systems of these vehicles we find that these have remain virtually unchanged. Thus there is a need for a secondary braking system; the answer is RETARDERS.

RETARDERS are, as the name suggests, an auxiliary braking device suitable for use in both on highway and off highway applications including underground use. These can be fitted onto the gearbox, in the driveline or mounted on the drive axle.

The RETARDER is a power-absorbing device, which unlike wheel brakes, does not depend upon friction to generate a retarding force. Instead, a driveline retarder consists of a number of stationary electromagnets and two rotating discs. When the retarder is activated the driveline brake generates a powerful electric current that acts as a retarding force that is transmitted to the vehicles driveline. Neither engine RPM nor gear selections affect the units retarding ability.

There are many advantages in operating a RETARDER INCLUDING the reduced risk of brake fade and increased brake life. Brake fade and wear increase with lining, drum and disc temperature.  RETARDERS' help to keep maintain brake temperatures in the safe zones.

A further advantage is that the RETARDERS provide high braking torque at low vehicle speeds. Up to 90% of retarders braking torque is available at 600 drive shaft RPM. By having such a high volume of braking capacity at these lower speeds indicates that they are well suited for stop - go applications.

Increased tyre life is also gained through the reduction of temperatures. Heat measured at up to 1000 degrees radiates from the foundation brakes and is transmitted to the rim of the tyres and can cause bead decomposition and ply separation of the tyres. By installing a  retarder tyre life can be increased by up to 10%.

Also manufacture an axle retarder specifically designed for semi-trailers. The unit is made up of central axle housing, a multiplying head and two retarder halves and two standard air brake systems. Inside the multiplying head there is a crown wheel and two opposite pinions which distribute and multiply the wheel RPM received from conventional axle shafts which are linked to the gear set by a differential mechanism. By activating the retarder the vehicle is slowed by "pulling from behind".

Technical Specifications cfk series

CFK-65 CFK-90 CFK-140 CFK-200 CFK-300 CFK-360 CFK-390 CFK-500 CFK Series USA CFK Concept 16 Coils CFK Concept 8 Coils

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