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Hydraulic Fail-Safe Catalog

Pneumatic Fail-Safe Catalog

Electromagnetic Fail-Safe Catalog

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Fail-Safe Brake

Pneumatically actuated clutches and spring-applied brakes clutch/brake combined units and tooth clutches.

• 1 Series 0022-.01-..9 Hydraulic Fail-Safe Brakes
• 2 Series 0022-..1 Hydraulic Fail-Safe Brakes
• 3 Series 0022-.20 Hydraulic Fail-Safe Brakes
• 4 Series 0452 Pneumatic Fail-Safe Brakes
• 5 Series 0422-..0/-..9/-..1 Pneumatic Fail-Safe Brakes
• 6 Series 0415 Pneumatic Fail-Safe Brakes
• 7/8 Series 0028 & 0208 Electromagnetic Fail-Safe Brake
• 9 Series 0207 Electromagnetic Fail-Safe Brake

Hydraulic Fail-Safe Brakes

Thanks to the large force available for actuation and the use of the steel/sinter combination, which has very low wear characteristics, hydraulically released Ortlinghaus Sinus® multi-plate Fail-Safe brakes are suitable for a range of applications in mechanical engineering, motor vehicles and transmission systems.  The cooling oil, which is led through the plates in a precise manner, allows the heat, which varies depending on the particular application, to be dissipated efficiently.  To a very large extent these brakes are wear free and require no maintenance!

Spring-applied, hydraulically released multi-plate brakes for wet- or dry-running, non centering

1 Series 0-022-. . 0/- . . 9

Spring-applied fail safe brakes with a housing which does not have a centering function; for this reason these brakes are primarily used on shaft ends and outside gearboxes.  Variations include a closed end flange and an open end flange, which would allow a shaft to pass through.  The “wet-running plates“ are lubricated initially by soaking in oil or by means of oil stored in the plate chamber, depending upon the particular application. 

The brakes can be released mechanically in the case of a hydraulic system failure (emergency release facility). 

Friction combination: Steel/sinter lining for wet or dry-running

Pressure oil intake: On outside of diameter of stationary cylinder. 

Operating pressure: max. 320 bar 

Application: Extensively used throughout the field of mechanical engineering especially as brakes for hydraulic motors used in cranes and winches.

 Spring-applied, hydraulically released multi-plate brakes for wet- and dry-running with internal and external centering facility

2 Series 0-022-. . 1

Friction conbination: Steel/sinter lining for wet or dry-running.

Pressure oil intake: On outside diameter of stationary cylinder. 

Operating: pressure: max. 320 bar

 Application: Generally within a transmission between motor (hydraulic motor) and driven device. 

Spring-applied, hydraulically released multi-plate brakes for wet- and dry-running with dual internal centering facility

3 Series 0-022-. 20

Friction combination: Steel/sinter lining for wet or dry-running

Pressure oil intake: On outside diameter of stationary cylinder

Operating pressure: max 320 bar

Pneumatic Fail-Safe Brakes 

Compressed air represents a secondary source of power that is clean and easy to handle. All types of Ortlinghaus Fail-Safe brakes therefore are offered with pneumatic released.  In many production shops a powerful compressed air network is already present, compressed air is “clean“ and there is no danger of fire in the case of leaks. It is simple to transport and to control and permits in addition rapid and precise operating times even at high operating frequencies. Furthermore the amount of maintenance required for both the compressed air supply system and for the pneumatic brakes is small.  With torque ratings ranging from 20 Nm to over 100,000 Nm the pneumatic range brakes are widely used in all fields of mechanical engineering. Release pressure of up to 5.5 bar is required.

Fail-Safe brakes with internally air-cooled friction plates for dry-running

4 Series 0452

These pneumatically released, spring-applied brakes with up to two plates utilize identical components. The plates of the single and two-plate versions are internally air-cooled which allows excellent heat dissipation and therefore high operation speeds. External cooling increases the thermal capacity of the brake considerably. The extremely small moments of inertia of the hub and inner plate combined with the small air volume of the actuating cylinder, enable high engagement rates and short switching times to be achieved. 

Friction combination: Cast iron/organic friction lining or cast iron/friction block of organic friction material.

Air intake: Via the fixed cylinder of the brake.

Application: These brakes are for “heavy duty work“ in general mechanical engineering.  They can be used when single cycling is required. The brakes are approved by the relevant German Employer’s Liability Insurance Association, as auxiliary brakes in press drives where they can supplement single-plate clutch/brake combined units when an appropriate monitoring function is provided.

Spring-applied multi-plate brakes for dry-running

5 Series 0422-..0/-..9/-..1

These spring-applied fail safe brakes have the same form of construction as the hydraulically released brakes of series 0022, the difference being that they are released with compressed air which is fed into the stationary cylinder. Precise operation and tough construction of the steel/organic lining friction combination characterize these brakes. There are versions with or without a centering function and in addition an emergency release facility can be fitted to enable the brake to be released should the compressed air supply fail.

Friction combination: Steel/organic friction lining

Air intake: At the stationary cylinder

Application: With pneumatic drives in general mechanical engineering or for safety applications, for example with mining machines.

Spring-applied muli-plate brakes for dry-running

6 Series 0415

A spring-applied fail safe brake with the friction combination steel/special sinter for dry-running, which can be used for both holding and dynamic applications.  Special characteristics are: Maintenance free operation together with the following options:

• Monitoring of the brake position by means of micro switches.

• Emergency release by means of manual lever or integrated screws.

• Mounting of an operating valve directly onto the brake.

Friction combination: Steel/special sinter for dry-running

Air intake: On the housing of the brake

Application: On electric motors and the shaft ends of machines and gearboxes.

Electromagnetic Fail-Safe Brakes 

Thanks to the many design variations, Ortlinghaus electromagnetic fail-safe brakes can be used in many different applications.  The electromagnet with its built in coil is an actuation unit that is totally free of wear. The operating voltage, normally 24V DC, can usually be made available and introduced into the brake without any problem.  The engagement, or disengagement, can be adjusted and controlled electrically.  You will find further details in the sections describing the individual products.

Spring-applied multi-plate brake for wet- or dry-running

7/8 Series 0028 and 0228

The dry-running version is an electromagnetically released multi-plate brake that can be mounted as required. 

Special options: Dust cover, closed plate chamber; manual release lever for emergencies; version for wet-running. 

Friction combination: Steel/organic friction lining for dry-running or steel/brass for wet-running

Power feed: Either via cables and rectangular connectors (24 V DC) or to a connection box with integrated rectifier (220 V).

Spring-applied twin-face brakes for dry-running

9 Series 0207

This brake is particularly suitable for mounting on electric motors.  In addition to the standard version, a central torque setting facility is available, together with dust protection and manual release lever.