Rely on tested quality and order brake cylinders and compressed air components directly online.

Compressed air and braking force in harmony

In commercial vehicles, brake cylinders and compressed air components control the mechanical conversion of brake pressure. Whether spring brake cylinders, piston brake cylinders or diaphragm cylinders – these components ensure reliable actuation of the brake system, even under high loads and changing pressure conditions.

Brake cylinders and individual parts for your compressed air system

In our store you will find various designs such as spring brake cylinders, piston brake cylinders, combination cylinders and diaphragm cylinders. We also offer suitable spare parts and accessories to carry out targeted repairs in the event of wear or defects.

Brake cylinder

What should you look out for when buying:

TYPE OF APPLICATION

The correct type must be selected depending on the function in the system (e.g. spring brake cylinders for parking or emergency braking functions, diaphragm or piston cylinders for service braking).

CONNECTION MEASURES

Ensure that the stroke length, piston or diaphragm diameter and connection thread are correct.

ASSEMBLY

Check whether installation is possible with the existing fixing points and cable connections. Also make sure that seals, brackets or repair kits are available to ensure long-term use and easy maintenance.

Expert Guide: Everything You Need to Know About Brake Cylinders & the Air Compression System

Brake cylinders convert the air pressure from the compressed air system into mechanical force, thereby actuating the brakes. They ensure that the braking command is reliably transmitted to the wheel and axle—even under heavy loads and varying pressure conditions.

Diaphragm and piston cylinders are primarily used for service braking, while spring-loaded cylinders handle the parking and emergency braking functions. Combination cylinders combine both functions in a single component. The type required depends on the specific function within the braking system.

Inside the spring-loaded cylinder, the ambient air pressure keeps a strong spring under tension. If the pressure drops—when parking or in the event of a pressure loss—the spring relaxes and applies the brake. As a result, the spring-loaded cylinder acts as a safe parking and emergency brake that holds reliably even without air pressure.

Typical signs include audible air escaping from the cylinder, a brake cylinder that does not fully release or responds slowly, uneven braking performance, and a drop in pressure in the system. Since this involves brake safety, such symptoms should be checked immediately.

The key factors are the correct operating mode (operating, parking, or emergency braking) as well as the appropriate stroke length, piston or diaphragm diameter, and connection thread. Only a cylinder that is precisely matched to the function and the system will operate safely and reliably.

In cases of wear or minor defects, a cylinder can often be repaired using a suitable repair kit and new seals, rather than replacing it entirely. It is important that gaskets, brackets, or repair kits are available and that installation is possible using the existing mounting points and line connections.

We carry replacement parts and accessories for trucks, trailers, buses, vans, and agricultural vehicles—including both premium brands and compatible OEM and aftermarket parts as cost-effective alternatives. This means you can find the right solution for nearly every common commercial vehicle.

Maintain your brake system reliably!

With precise cylinders and matching accessories, you can ensure safe brake control – from the service brake to the parking brake. Order your suitable cylinder online now and rely on professional reliability.