Air dryer

One of the most important component of air brake system. Air dryer removes water from compressed air to keep brake system clean and functional. Maintenance or replacing assy once in a year or 100,000km is highly recommended or your whole air brake systems is damaged due to water contamination. We also have line-up of D.BEST repair kit which is perfect for your routine maintenance.

The inferior products may experience a deterioration in dehumidification performance more quickly than the D.BEST Air Dryer, potentially leading to various malfunctions. For instance, moisture can flow into the piping, washing away the grease in the sliding parts, which can cause the equipment to operate less smoothly or even lead to rust formation. Additionally, degraded desiccant can leak into the brake piping, resulting in malfunctioning brake equipment. Once desiccant has entered the equipment, it often necessitates replacement, leading to significant costs.

Wedge Brake Chamber

This is a brake chamber that converts air pressure into mechanical force to activate the full air brake by pushing out a piston. It consists of two chambers: the service brake chamber and the parking brake chamber. The service side is recommended to be maintained or replaced every two years, while the parking side should be replaced every three years. By using poor quality chamber, you are going to have high possibility of unintentional sudden brake caused by air leak from diaphragm and end up in accident. In addition, in worst scenario, vehicle might cause fire during driving.

Brake Valve

The valve adjusts the air flow based on the pedal input, allowing for precise control of braking force, which enhances the overall performance and reliability of the braking system. The mainstream design includes a valve that is compatible with two separate brake lines as a fail-safe feature. This ensures that if one brake line fails, the other can still function, providing an additional layer of safety in the braking system.

Relay valve

This is a valve that ensures the air brake system responds promptly to the driver's braking actions. Some products may also include a feature that automatically activates the emergency brake.

Hose Coupling

This is a coupling used to connect and disconnect the air lines between the tractor head and the trailer. The designs differ for the head coupling and the trailer coupling, with the head coupling featuring a check valve to prevent air from escaping during disconnection.

Air Compressor

This is an essential product that generates compressed air used in air brakes. It utilizes the engine's power to compress atmospheric air and supply it to the system. Regular maintenance is necessary for proper brake operation, and it is recommended to replace components such as the cylinder liner, piston rings, and head gasket, or to perform assembly replacements as needed. If you use poor quality compressor or neglecting maintenance, it can lead to an increase in unintentional oil flow and the carbonization of engine oil, which may cause malfunctions in the air dryer.

Hand Brake Valve

This is a manual lever used to activate the parking brake. It is designed differently for trucks and buses compared to tractors.

Exhaust Brake Valve

This is a valve that activates the auxiliary brake using the engine's exhaust pressure. It generates braking force by blocking the exhaust flow. There are two types: one that operates with an electromagnetic valve and another that operates with air. Due to exposure to high-temperature exhaust, regular replacement and maintenance are recommended.

Air Master

This product receives air pressure from the brake system and converts it into hydraulic pressure. It activates the wheel cylinder using the generated hydraulic pressure to apply the brakes.

Brake Master Cylinder

This product plays a role in the hydraulic brake system by transmitting the driver's braking force to the hydraulic system. Cylinder is designed to support a dual brake system as a fail-safe feature, ensuring that the braking force is not completely lost even if one system fails.

Brake Booster

This product is primarily used in passenger cars and assists the braking force by utilizing the vacuum generated by the engine.

Wheel Speed Sensor

This product measures the wheel rotation speed and transmits the data to the onboard computer. For the ABS to function properly and prevent wheel lock during sudden braking, this sensor must accurately measure the wheel speed.

Vacuum Pump

This product generates the vacuum necessary for the brake booster, which assists the driver's braking force in a hydraulic brake system. It is an essential component to ensure that the brakes can operate under any circumstances.

Slack Adjuster

This product transmits the output from the brake chamber to the drum brake. It also serves to adjust the gap between the brake drum and the brake shoes to prevent it from becoming too wide as the brake shoes wear.

Brake assy for
construction machinery

This is a caliper used in hydraulic brakes for construction machinery that clamps the brake disc to generate braking force through friction. It is primarily used in wheel-driven dump trucks.

Brake pad for
construction machinery

This component is installed on wheel-driven construction machinery and generates braking force by pressing against the brake disc. It is an important but item which is worn so regular maintenance is recommended.