ATEK Drive Solutions

Brake with Combined Spring and Pneumatic Release: Maximum Safety and Efficiency for Your Drive Technology

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Discover the benefits of the combined brake solution for demanding industrial applications – from mechanical engineering to rail technology.

What is the key advantage of a brake with combined spring and pneumatic release?

The main advantage is the integrated fail-safe mechanism.In the event of a failure of the compressed air supply, the spring force automatically takes over the braking function, ensuring maximum safety for machine and personnel.

For which industrial applications are these brakes particularly suitable?

They are excellent for safety-critical applications in commercial vehicles (trucks, trailers), rail vehicles (trains, trams), as well as in the general machinery and plant engineering, for example, on cranes, hoists or robots.

How does the emergency release work in a combined spring-pneumatic brake?

A mechanical emergency release, often a threaded spindle or lever mechanism,enables manual release of the brake even without available compressed air.This is important for maintenance work or freeing blocked systems.

What influence does the quality of the compressed air have on the performance of these brakes?

The quality of the compressed air is crucial for reliability and lifespan.Contaminants or moisture can lead to malfunctions. Good air treatment (filtration, drying) can extend the lifespan of the pneumatic components by up to 50%..

Are custom adaptations possible for brakes with combined spring and pneumatic release?

Yes, many manufacturers like ATEK Drive Solutions offer custom adaptations. This includes designing the holding forces, special constructions, or integrating them into existing machine concepts, to ensure optimal performance and compatibility. What is a Tristop® cylinder?

Was versteht man unter einem Tristop®-Zylinder?

A Tristop® cylinder is a compact unit, which combines an operational brake (membrane part) and a spring-applied brake (spring part). It thus serves as a service, parking, and emergency brake in a single cylinder, often with an integrated mechanical emergency release.

Why is redundancy important in these brake systems?

Redundancy, e.g., through dual brake circuits or the combination of different braking technologies,increases the failure safety. If one subsystem fails, another can take over the braking function, which is particularly required in applications with high safety risks. What standards are relevant for brakes with combined spring and pneumatic release?

Welche Normen sind für Bremsen mit kombinierter Feder- und Pneumatikfreigabe relevant?

Important standards include the Machinery Directive 2006/42/EC for general safety requirements, ISO 13849 for safety-related parts of control systems and specific application standards such as the BOStrab for trams. Compliance ensures conformity and market access..

Brakes with combined spring and pneumatic release offer highest safety through their fail-safe mechanism (spring brakes, pneumatic release) and can increase the system reliability by up to 15%,especially in critical applications.

The versatility of these brakes extends across commercial vehicles, rail transport to special machines. An optimal compressed air quality is crucial and can extend the lifespan of components by up to 50%,thereby reducing maintenance costs.

Modern designs such as hybrid solutions or Tristop® cylinders enhance functionality. Compliance with standards (e.g., ISO 13849) and the integration into digital monitoring systems can potentially reduce operating costs by up to 20% and further optimize safety. Learn all about the operation, advantages, and fields of application of the brake with combined spring and pneumatic release. A must for anyone who relies on reliable and safe drive technology!

In the world of industrial drive technology, brakes with combined spring and pneumatic release are indispensable. They provide maximum safety and efficiency. Do you need a customized solution? Contact us at

Erfahren Sie alles über die Funktionsweise, Vorteile und Einsatzgebiete der Bremse mit kombinierter Feder- und Pneumatikfreigabe. Ein Muss für jeden, der auf zuverlässige und sichere Antriebstechnik setzt!

In der Welt der industriellen Antriebstechnik sind Bremsen mit kombinierter Feder- und Pneumatikfreigabe unverzichtbar. Sie bieten höchste Sicherheit und Effizienz. Benötigen Sie eine individuelle Lösung? Kontaktieren Sie uns unter ATEK Drive Solutions for a personal consultation.

Are you looking for the optimal braking solution for your application? Let us find the perfect solution together!

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Understand the basics of combined spring-pneumatic brakes.

Die The brake with combined spring and pneumatic release ensures the safe stopping of heavily loaded trucks on steep inclines. This article explains how this technology works and its benefits for demanding industrial applications.

Understand the basics of combined spring-pneumatic brakes.

Understand the basic principle.

If the The brake with combined spring and pneumatic release compressed air supply fails, the spring force, as a fail-safe component, takes over the braking function. In normal operation, the pneumatic system controls precisely, e.g., at 6 bar pressure.

Synergy for safety

Industrial brakes of this type, especially the spring-applied pneumatic brake,ensure standstill safety even under overload conditions of primary systems. They combine spring force (which acts immediately in case of pressure drop) with the pneumatic adjustability (e.g., Tristop® cylinder). This duality enhances safety reserves.

Application breadth in focus

This brake technology with spring force and pneumatic solution is widely used: in cranes, robots, and commercial vehicles. One advantage is the adaptability to extreme conditions (e.g., dust, moisture in mining), where purely electronic systems might fail.Analyze functionality and typical application areas.

The heart of: spring reservoir and pneumatic solution

The heart of a The brake with combined spring and pneumatic release is spring reservoirs that hold machines without external power using mechanically stored force. This force is released at pressure drop (e.g., below 4 bar), while the pneumatic release allows for controlled disengagement. The energy-independent braking force is ideal for emergency brake functions.

  • Operating principle: Spring-applied brakes use mechanically stored force released during pressure drop, while the pneumatic release allows controlled disengagement.
  • Energy-independent braking force: A key advantage is the ability to brake even without external power, making them ideal for emergency brake functions.
  • Application in commercial vehicles: Serve as reliable parking brakes, often with options for stepped actuation for finer control and component protection.
  • Application in rail vehicles: Used as stopping brakes for precise positioning, especially when dynamic braking systems are not effective.
  • Special applications such as ROBA® linearstop: Provide pneumatic fail-safe security for specific applications such as piston rods in packaging machines.
  • Redundancy potential: The combination with additional brake systems can enhance safety according to standards such as ISO 13849-1 (PL e).

Commercial vehicles: safety on the road

In commercial vehicles, it serves as a parking brake (spring force, pneumatically released), often in conjunction with The brake with combined spring and pneumatic release lever brakes. Some manufacturers offer stepped actuation (braking force proportional to the travel), allowing finer control and protecting components.. Rail vehicles: precision on rails

Schienenfahrzeuge: Präzision auf Schienen

In rail vehicles, spring-applied brakes, a core component of the combined spring-pneumatic systems, serve as stopping brakes for positioning, regardless of weather/loading, especially when dynamic brakes (e.g., recuperation) are ineffective.Integration into complex systems (possibly with eddy current brakes) requires system understanding to avoid overbraking/conflicts. Special applications: The ROBA® linearstop pneumatically

Spezialanwendungen: Der ROBA® linearstop pneumatisch

The ROBA® linearstop from Mayr is a pneumatic fail-safe safety brake for piston rods (e.g., in packaging machines). Holding forces vary by model/air pressure (e.g., 4.0-6.0 bar). Combination with a second brake allows for redundancy for PL e (ISO 13849-1).Prioritize safety aspects and redundancy concepts.

The fail-safe mechanism as a lifesaver.

The fail-safe principle is crucial for a The brake with combined spring and pneumatic release: In the event of compressor failure or line break, pre-tensioned springs automatically activate the brake without external energy. This is a fundamental safety aspect (according to Machinery Directive 2006/42/EC). Pneumatic failure leads to a safe condition.

Redundancy: double is better.

Redundancy (e.g., two brake circuits, different braking technologies) is often necessary with high safety requirements, whereas fail-safe spring brakes,as used in combined spring-pneumatic brakes, are central. Redundancy also means interconnection against cascading effects (e.g., hand brake valves Wabco 961 722 1.. 0 for solo vehicles). Redundanz bedeutet auch Verschaltung gegen Kaskadeneffekte (z.B. Handbremsventile Wabco 961 722 1.. 0 für Solofahrzeuge).

Emergency release: manual control in case of emergency.

Mechanical emergency releases (e.g., threaded spindle SW24 in Tristop® cylinders, hydraulic pump) allow for moving blocked vehicles. Personnel training is important: improper use can cause hazards or damage (up to 30% of maintenance costs).Discover technical details and innovative design variants.

Electromechanics meets pneumatics: The hybrid solution.

Modern designs combine electromechanical operational brakes (often E-motor, ball screw spindle) with pneumatic spring-applied brakes,a key element of the The brake with combined spring and pneumatic release. Electric control enables ABS/brake force distribution; the pneumatic spring-applied brake serves as a fallback. This can increase system reliability by up to 15%.

  1. Hybrid solutions: The combination of electromechanical operational brakes with pneumatic spring-applied brakes, (often as part of a The brake with combined spring and pneumatic release) unites precise electrical control (e.g., for ABS) with the fail-safe nature of pneumatics.
  2. System reliability: Such hybrid approaches can significantly increase the reliability of the braking system, often by up to 15%.
  3. Integrated Cylinders (Tristop®): Compact units such as the Tristop® cylinder combine service, parking, and emergency brake functions, increasing operational safety through integrated emergency release mechanisms.
  4. Emergency Release: Mechanical release devices are crucial for manually moving vehicles even in the event of a complete loss of compressed air.
  5. Trailer Compatibility: Seamless integration and coordination with pneumatic trailer brake systems is essential for harmonious braking behavior of the entire combination.
  6. Interface Management: Control and trailer modules in the towing vehicle play a key role in the proper transmission of control signals and air volumes.

The Tristop® Cylinder: Integration par excellence

The Tristop® cylinder, an example of an integrated combined spring-pneumatic brake, combines service, parking, and emergency brake functions compactly (membrane section for service brake, connection 11; spring accumulator brake, connection 12). The mechanical release screw (e.g., SW 24) enables emergency release in case of pressure loss, which increases operational safety.

Compatibility with Trailers: A Must

Compatibility with pneumatic trailer brake systems is essential. Control (e.g., Knorr-Bremse R1) and trailer modules (e.g., Knorr-Bremse 500) in the towing vehicle serve as interfaces. Correct coordination of control signals/air volumes ensures harmonious braking behavior and prevents wheel lockups.Master challenges and shape the future of braking technology

The crux with air quality

Inadequate air preparation (condensate, oil, particles) often causes failures in pneumatic systems, which can impair the reliability of a The brake with combined spring and pneumatic release system. Good air preparation (filters, dryers) can extend lifespan by up to 50% and reduce downtime. System pressure drop should not exceed 0.1 bar.

Integration into the digital world

Digitalization enables in pneumatic brakes, including the pneumatic components of combined spring-pneumatic systems, condition monitoring (sensors), more precise control (controllers), and predictive maintenance. Challenge: Standardization of interfaces/protocols for compatibility/integration, which could lower costs by up to 20%.

Standards and regulations in sight

Standards (e.g., BOStrab, ISO 13849) define minimum requirements for safety/performance. Continuous adaptation/certification processes ensure manufacturers’ safety and international marketability.

A The brake with combined spring and pneumatic release provides a high level of safety and control. Emergency release and air quality are crucial for the longevity and reliable operation of these dual braking systems. ATEK Drive Solutions is happy to advise you on specific braking applications.

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