Duxberg Air & Drum Brakes
Genuine, Dependable, Reliable
Air Disc Brake
Duxberg portfolio of brakes include air disc and air drum Duxberg is the worldwide braking leader in size and capability for the commercial and industrial vehicle industry. Our air disc brakes require less maintenance and lasts longer in some cases twice the lining life and up to four times the rotor life. Duxberg air brakes are there to help you stop, providing solid safe controlled stops. All of this equates to less down time for your commercial vehicle. Our air disk brakes as an high torque capacity with a rated torque capacity of 27,000 Nm combined with a large suite pad area which delivers a low pad wear rate.
Duxberg drum brakes are engineered to provide superior performance as well as a longer life. Our company offers several different models of air drum brakes for standard highway truck applications as well as heavy construction vehicles. As one of the industries leaders in service brake products brake drums were built using advanced construction. Using advanced measuring equipment our brake drums have precise profiles which allows maximum performance as well as coating roughness testers and finally impact testing.
Air Brakes Explained
Air brakes or more formally a compressed air brake system is a type of friction brake for vehicles in which compressed air pressing on a piston is used to apply the pressure to the brake pad needed to stop the vehicle. Air brakes are used in large heavy vehicles, particularly those having multiple trailers which must be linked into the brake system, such as trucks, buses, trailers, and semi-trailers in addition to their use in railroad trains. George Westinghouse first developed air brakes for use in railway service. He patented a safer air brake on March 5, 1872. Westinghouse made numerous alterations to improve his air pressured brake invention, which led to various forms of the automatic brake. In the early 20th century, after its advantages were proven in railway use, it was adopted by manufacturers of trucks and heavy road vehicles.
Design and function
Compressed air brake systems are typically used on heavy trucks and buses. The system consists of service brakes, parking brakes, a control pedal, air storage tank. For the parking brake, there is a disc or drum brake arrangement which is designed to be held in the ‘applied’ position by spring pressure. Air pressure must be produced to release these “spring brake” parking brakes. For the service brakes (the ones used while driving for slowing or stopping) to be applied, the brake pedal is pushed, routing the air under pressure (approx 100–120 psi or 690–830 kPa) to the brake chamber, causing the brake to be engaged. Most types of truck air brakes are drum brakes, though there is an increasing trend towards the use of disc brakes in this application. The air compressor draws filtered air from the atmosphere and forces it into high-pressure reservoirs at around 120 psi (830 kPa). Most heavy vehicles have a gauge within the driver’s view, indicating the availability of air pressure for safe vehicle operation, often including warning tones or lights. Setting of the parking/emergency brake releases the pressurized air in the lines between the compressed air storage tank and the brakes, thus allowing the spring actuated parking brake to engage. A sudden loss of air pressure would result in full spring brake pressure immediately.
A compressed air brake system is divided into a supply system and a control system. The supply system compresses, stores and supplies high-pressure air to the control system as well as to additional air operated auxiliary truck systems (gearbox shift control, clutch pedal air assistance servo, etc.). and the prime mover park brake hand control.
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