How we remanufacture brake calipers - AutoNorma

Brake calipers are designed to protect our driving safety. Every passenger car and truck has this component, and therefore there are several types on the market. However, each brake caliper operates on the same principle, utilizing a piston which, when the brake pedal is pressed, is ejected from the chamber and pressed against the brake pad. This in turn puts pressure on the brake disc, which causes braking. The piston is powered by brake fluid or air.

As already mentioned, the brake caliper is faced with a large dose of impurities and mechanical wear. The most common defect in the calipers is the wear of the rubber seals in the piston chamber. In addition, brake jaws often suffer from corrosion, which is mainly caused by driving in winter when there is a higher concentration of salt and water on the road. Corrosion can disrupt the jaw's strength and, above all, become another source of impurities. These can then affect the momentum of the entire caliper and block the part. In that case, it is then necessary to replace the entire part.

A faulty brake caliper may show, among others:

  • By blocking the parking brake mechanism
  • By a significant extension of a vehicle stopping distances
  • Brake fluid leaking in the caliper area
  • By whistleling of wheels when braking
  • Smell when braking
  • Excessive heating of the brake disc

Brake caliper remanufacturing
Starts from the diagnostics of old parts. Our professionally trained staff will check their condition and evaluate functionality. The tested parts are then dismantled and all old and unusable components are removed. For brake caliper components, it is necessary to undergo high-pressure or chemical cleaning to remove parts of corrosion, grease and dirt. The parts are then galvanized to increase their surface resistance. Following this procedure, the parts prepared in this way are professionally assembled. Missing or defective parts are replaced with new original ones. These are usually brass venting valves, piston chamber seals, or the piston body itself. Finally, the remanufactured parts are thoroughly tested on the bench, where 2000 cycles of maximum brake load must be passed. The test is also complemented by a test of surface resistance, leaving the remanufactured part in the chamber with the action of water vapor containing various salts or oxides.