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Clamping & Braking Elements (Linear Technology)

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Zimmer Group Clamps and Brakes for Linear

Offering a wide range of clamp and brake units made to fit specific guideways for linear profiled rails/guides. Utilized for clamping and holding loads with select components designed for braking units also. Adapting plates are also available for height compensation to match your linear bearings to the mounting surface. Designed for nearly all popular guideway manufacturers in the industry to guarantee the best fit for the job. Request a quote.

Description: A work holding device that maintains the position of a work piece by holding it in place against locators. 

All clamping housings are nickel plated offering rust protection. Parts made from aluminum are chemically nickelled or hard-anodized according to requirements.


Clamping & Braking Elements

Manual Clamp

  • HK
  • HKR
  • Mini HK

Hydraulic Clamp

  • KWH

Hydraulic Clamping & Braking

  • KBH
  • KBHS

Electric Clamp

  • LCE

Pneumatic Clamping & Braking

  • MK
  • MKS
  • MKR
  • MKRS
  • LKP
  • LKPS
  • MCP
  • MCPS
  • TPS
  • MBPS
  • UBPS
  • LBPS
  • RBPS

Technical Operation Principles

Clamping, Braking and Areas of Usage

The MK/MKS/MKR/MKRS/MBPS/UBPS series are built with two parallel or synchronous wedge slide gears. This means the lifting motion of the contact sections can be carried out from either side. Relative movements resulting from the clamping process are therefore not expected to occur. Care must however be taken to ensure the connection design is correct.

The KWH/KBH/MCP/MCPS/ LCE/HK/HKR/ miniHK series are mounted on floating bearings and so no lateral forces are exerted on the connection design during the clamping process. The friction connection between the clamping element and the linear guide is created at the free surfaces of the guide rails without causing wear and tear on the rails.

Series MK /MKS /MKR /MKRS /MCP /MCPS /KWH /HK /HKR and miniHK are designed exclusively for static clamping processes.

Featuring the appropriate contact sections, the MBPS/UBPS/KBH /KBHS and RBPS series are
also suitable for dynamic use (brakes).


Hydraulic Connections

The hydraulic clamping elements are pre filled with HLP 46 at the factory. The hydraulic connection is
available on both sides, however one connection is sufficient for operation. Special care must be taken
when exposing the rigid and flexible hydraulic inlet pipes to air, since airlocks can damage the sealing


Connection Design, Installation of the Clamping Elements

To avoid adverse effects such as permanent rubbing on the linear guide, the connection must be designed strictly according to the load taken and requirements made. Any inclination of the clamping elements can cause rubbing, wear and tear, and thus damage to the linear guide rails.

Factory presetting is adjusted for the linear guide and must not be altered during installation. Always
observe the installation instructions for the clamping and brake elements and for the linear guides. Some spring-loaded elements are equipped with a transport securing device between the contact sections. This must be removed during installation by charging the element with pressure. When the pressure is removed, the transport securing device or linear guide must always lie between the contact sections.

The clamping elements have no guiding function. Replacement of a guide carriage by a clamping element is therefore not possible. The ideal position of the clamping element is between two guide carriages. When several clamping elements are used, they should be distributed evenly on both guide rails to achieve maximum rigidity of the overall construction.

Pneumatic Connections

Clean, lubricated compressed air must be used for all pneumatic elements. The recommended filter size is 25 μm. The cable cross-section for the elements should be as large as possible to match the air supply connection. Smaller cross-sections reduce the response and reaction times of the elements. The feed line should be kept as short as possible.

In principle, all conventional pneumatic valves are suitable. The reaction time for the corresponding valve should be obtained from the respective manufacturer, especially when the valve is employed as a brake or as a safety device against falling.


Higher Supporting Forces by PLUS Connection

The holding force of the elements MKS/UBPS and MCPS can be increased by way of pressure support from the spring-loaded energy storage and insertion of a 5/2 (overflow-free) or 5/3 directional valve. In this case, the ventilation filter is replaced by connection of a second pneumatic line.

In case of use as a safety element, it should be noted that the higher holding force (PLUS connection) can only be achieved through additional charging with available pneumatic pressure.



If the prescribed pressure medium is used, subsequent lubrication is not required.


Surface Protection

All clamping housings are chemically nickelled and thus offer limited rust protection. Parts made from aluminium are chemically nickelled or hard-anodized, according to requirements.

Zimmer Group Clamps MKS

Zimmer Group Clamp and Brake units

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