Disc brakes from Knott
hydraulic pneumatic mechanical
Knott develops and manufactures disc brakes for demanding vehicle and machine applications, from the standard system to the precisely adapted special solution.
Powerful disc brakes for demanding applications
Our disc brake family covers a wide spectrum of vehicle and machine applications. It includes spring-applied sliding caliper brakes, hydraulic fixed caliper and sliding caliper disc brakes, mechanical sliding caliper disc brakes, air disc brakes and hydraulic-mechanical sliding caliper brakes.
Depending on the vehicle concept and the braking task, different designs and actuation systems are therefore available. From the compact parking and auxiliary brake to the powerful fixed caliper brake, the systems can be matched to the braking torque, the installation space, the actuation and the operating conditions. All designs are precisely controllable, deliver constant characteristic values and are insensitive to temperature and speed fading.
The disc brakes are used in on-road and off-road applications alike, wherever precise controllability, constant braking performance and sturdy technology are called for.
YOUR APPLICATION. OUR BRAKE SOLUTION.
Whether it is a standard product or a customer-specific version, KNOTT combines a wide spectrum of disc brakes with its own application engineering and development expertise. From different designs and actuation concepts, the right solution for the particular application is created.
You have the task - we make your brake.
Precisely controllable
Constant characteristic values and insensitive to temperature and speed fading.
Braking torques up to 120,000 Nm
From the light trailer to the heavy mobile crane and lorry.
Six designs
Spring-applied, fixed caliper, sliding caliper, mechanical, air and hydraulic-mechanical.
The KNOTT disc brakes at a glance
Matched exactly to your application from on-road to off-road.
Hydraulic, electric sliding caliper
HEGS extends the proven hydraulic service brake with an electric parking brake for vehicles from 3.5 to 10 tonnes. Suitable for rough terrain, waterproof and designed for extreme temperatures, it combines reliable holding with low maintenance effort.
- Electric parking brake for 12 V
- For vehicles from 3.5 to 10 t
- IP67, waterproof and suitable for rough terrain
- Actuation time < 1.5 seconds
- Self-locking safety function
- Simple mechanical emergency release
- Automatic engagement and readjustment
- Low operating noise < 65 dB
- Light construction with freely selectable connection positions
- Compatible with hydraulic systems and brake fluid operation
- Sizes from 1 × 34 to 1 × 56
- Designed for temperatures from -40 °C to +90 °C
The HEGS is particularly suitable for agricultural vehicles and further off-highway applications in which an electric parking brake with a sturdy design is called for.
E-FSG - electric spring-applied sliding caliper brake
The new generation of parking brakes. No hoses, no valves, just a secure hold. E-FSG is an electric spring-applied sliding caliper brake for reliable parking without hydraulics. Compact, sturdy and with a fail-safe function, it is particularly suitable for construction and off-highway vehicles.
- No hydraulic lines or valves required
- Spring-applied, electrically released parking brake
- 34 kN clamping force at 1 mm release clearance
- 12 V operating voltage
- Actuation time < 0.15 seconds
- Fail-safe: the brake closes if the power fails
- IP67, protected against water and suitable for off-road use
- Compact design that is easy to fit
- Electronic monitoring of the brake status possible
- Can be exchanged with the FSG 88 where the technical specifications are identical
E-FSG was developed specifically for construction and off-highway vehicles and makes a reliable parking brake possible even where a hydraulic solution is to be avoided.
Spring-applied sliding caliper brakes
These brakes work on the fail-safe principle: in normal operation the brake is released by a constant supply of pressure. If the pressure drops, the integrated spring accumulator initiates safe braking.
Spring-applied sliding caliper brakes are particularly suitable as parking and auxiliary brakes on gearbox output and axle drive flanges. The enclosed design is ideal for off-road use.
Available sizes: piston diameter 75 - 110 mm
Braking torques: up to 9,500 Nm (depending on the brake disc diameter)
Hydraulic fixed caliper disc brakes
Fixed caliper disc brakes are characterised by a fixed connection to the wheel suspension. The braking force acting on the brake disc is generated by at least two opposing pistons.
The advantage: unlike floating or sliding calipers, fixed caliper disc brakes have no sliding elements, which makes them ideal for off-road use and for environments with heavy contamination.
Available sizes: 2, 4 or 6 pistons with a diameter of 40 - 92 mm
Braking torques: up to 120,000 Nm (depending on the brake disc diameter)
Hydraulic sliding caliper disc brakes
The actuating force is applied on one side through one or more pistons. The actuating force on the opposite side is generated by the reaction force of the movable caliper, which is supported on the disc through the linings.
This construction makes it possible to build the brake further into the rim. Suitable for on-road applications with tight installation spaces, such as municipal vehicles, airfield equipment and trailers.
Available sizes: 1 or 2 pistons with a diameter of 40 - 72 mm
Braking torques: up to 10,000 Nm (depending on the brake disc diameter)
Mechanical sliding caliper disc brakes
These brakes have a brake lever that is controlled externally through air, hydraulic or spring-applied cylinders, or through a cable, linkage or handbrake lever. Mechanical sliding calipers are used as parking and auxiliary brakes.
Available sizes: MGS 22, MGS 33, MGS 40, MGS 45 and MZB 40
Braking torques: up to 6,000 Nm (depending on the brake disc diameter)
PGS - air disc brakes
Actuation takes place on one side through an external diaphragm cylinder. The actuating force on the opposite side is generated by the reaction force of the movable caliper. The advantages over conventional systems are the compact design, the ease of servicing and the stable braking behaviour.
Applications are found in heavy commercial on-road use such as lorries, buses, mobile cranes, fire service vehicles and trailers. Use in heavy off-road terrain is also made possible by the particular sealing of the sliding elements developed by Knott.
- Available sizes: PGS 15, 19, 22, 25
- Braking torques: up to 25,000 Nm (depending on the brake disc diameter)
- Installation angle from 0° to 16°
- Special solutions up to 90°
The two-part housing allows the position and the installation angle of the air brake chamber to be adapted so that they meet even the most difficult installation conditions.
HMGS - hydraulic-mechanical sliding caliper brakes
These brakes offer both a service brake function and an integrated parking brake function. The actuating force is applied on one side, either hydraulically through the service brake piston or mechanically through the brake lever. The opposite side is generated by the reaction force of the movable caliper.
One essential advantage: the reinforced components of the parking brake unit make it possible to hold a vehicle even on extreme gradients. Used mainly in construction machinery and special-purpose vehicles.
- Available sizes, piston diameter: 34 - 56 mm
- Braking torques: up to 2,600 Nm (depending on the brake disc diameter)
FREQUENTLY ASKED
QUESTIONS.
Which disc brake designs does Knott offer?
Knott offers six designs: spring-applied floating caliper brakes, hydraulic fixed caliper and floating caliper disc brakes, mechanical floating caliper disc brakes, air disc brakes and hydraulic-mechanical floating caliper brakes.
Which braking torques do Knott disc brakes cover?
The range extends from around 2,600 Nm for the hydraulic-mechanical floating caliper brakes to 120,000 Nm for the hydraulic fixed caliper disc brakes.
How do fixed caliper and floating caliper brakes differ?
Fixed caliper brakes generate the braking force through opposing pistons without sliding elements and are therefore insensitive to dirt. Floating caliper brakes apply the force on one side and can be built more compactly and integrated further into the rim.
Does Knott offer customer-specific disc brakes for OEMs?
Yes. All designs are available as a standard version or as an adapted special solution. Application engineering accompanies the design work from the feasibility study to series production.
The best design for your project?
Speak to our application engineering team directly.
Tell us your first requirements and a number we can call you back on in the contact form, and we will come back to you with a suitable solution.
