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Copyright © 2005-2011
Automation 4 Less
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For use with Hiwin linear rail and other manufacturers' rail to lock bearings into a fixed position.
NOT INTENDED FOR DYNAMIC BRAKING!

| Operation summary: Air supply is normally maintained, and the pneumatic piston compresses the spring. Clamp does not contact rail in this condition. When air pressure is relieved, the spring extends and presses on the wedge-shape actuator. In turn, the wedge actuator applies force to the friction material and it contacts the rail. |
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Features and Characteristics
- Compact design
- High clamping forces
- Exact positioning
- Strong axial and horizontal rigidity
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Common Applications:
- Positioning of axes
- Fixing of vertical axes
- Positioning of lifting devices
- Clamping of machine tables
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| Higher supporting forces possible with PLUS connection |
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By using a 5/2 (overflow-free) or 5/3 valve it is possible to augment the spring power with pneumatic pressure. By using the "PLUS" connection, the standard clamping force will be increased significantly.
When the PLUS connection (MKS only) is being used, the air-release filter is replaced by connecting a second pneumatic tube (see drawing at right).
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The MKS has an opening pressure of 5.5bar. Ports are located on both sides of the brake, and that means that the air connection and the air-release filter can be located in either location to facilitate plumbing for the unit.
Models available to fit virtually all sizes of linear rail by all major manufacturers:
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- Hiwin
- THK
- Rexroth Bosch Group
- Schneeberger
- IKO
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Adapter plate is required in some applications to elevate the height of the brake mechanism to equal that of the bearing/guide.
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For application information for Hiwin products, refer to charts below. For other manufacturers' rail, please download the PDF document at the bottom of this page or contact us for assistance.
... for pricing information on this line.

HIWIN HG applications for Zimmer MKS pneumatic, spring-loaded clamps
(these are the current production Hiwin heavy duty bearing products)
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Rail Width
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Brake Part #
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Fits these models
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Adapter plate
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15
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MKS1501A
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HGWCC
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Not needed
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15
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MKS1501A
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HGHCA
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PMK15-4
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20
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MKS2001A
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HGWCC, HGWHC, HGHCA, HGHHA
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Not needed
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25
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MKS2501A
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HGWCC, HGWHC
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Not needed
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25
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MKS2501A
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HGHCA, HGHHA
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PMK25-4
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30
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MKS3001A
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HGWCC, HGWHC
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Not needed
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30
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MKS3001A
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HGHCA, HGHHA
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PMK30-3
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35
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MKS3501A
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HGWCC, HGWHC
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Not needed
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35
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MKS3501A
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HGHCA, HGHHA
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PMK35-7
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45
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MKS4501A
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HGWCC, HGWHC
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PMK45-2
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45
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MKS4501A
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HGHCA, HGHHA
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PMK45-12
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55
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MKS5501A
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HGWCC, HGWHC
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PMK55-2
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55
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MKS5501A
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HGHCA, HGHHA
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PMK55-12
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65
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MKS6501A
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HGWCC, HGWHC, HGHCA, HGHHA
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Not needed
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HIWIN EG applications for Zimmer MKS pneumatic, spring-loaded clamps
(these are the current production Hiwin medium duty bearing products)
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Rail Width
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Brake Part #
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Fits these models
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Adapter plate
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15
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MKS1501A
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EGHSA, EGHCA, EGWSC, EGWCC
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Not needed
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20
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MKS2001A
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EGHSA, EGHCA, EGWSC, EGWCC
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Not needed
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25
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MKS2501A
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EGHSA, EGHCA, EGWSC, EGWCC
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PMK25-2
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30
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MKS3001A
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EGHSA, EGHCA, EGWSC, EGWCC
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PMK30-2
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HIWIN LG applications for Zimmer MKS pneumatic, spring-loaded clamps
(these are the Hiwin "LEGACY" heavy duty bearing products)
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Rail Width
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Brake Part #
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Fits these models
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Adapter plate
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15
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MKS1501A
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LGWCC, LGWCA
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Not needed
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15
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MKS1501A
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LGHCA
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PMK15-4
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20
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MKS2001A
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LGWCC, LGWHC, LGHCA, LGHHA
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Not needed
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25
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MKS2501A
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LGWCC, LGWHC
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Not needed
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25
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MKS2501A
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LGHCA, LGHHA
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PMK25-4
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30
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MKS3001A
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LGWCC, LGWHC
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Not needed
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30
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MKS3001A
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LGHCA, LGHHA
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PMK30-3
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35
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MKS3501A
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LGWCC, LGWHC
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PMK35-4
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35
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MKS3501A
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LGHCA, LGHHA
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PMK35-11
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45
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MKS4501A
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LGWCC, LGWHC
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PMK45-8
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45
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MKS4501A
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LGHCA, LGHHA
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PMK45-11
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55
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MKS5501A
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LGWCC, LGWHC
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PMK55-2
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55
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MKS5501A
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LGHCA, LGHHA
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PMK55-12
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65
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MKS6501A
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LGWCC, LGWHC, LGHCA, LGHHA
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Not needed
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 For more information or to obtain application information for these MKS pneumatic actuated, spring loaded clamps on rail from manufacturers such as THK, Rexroth Bosch Group, Schneeberger, IKO, INA, NSK or SKF, download this 124-page PDF document (4.4MB).
Data Sheets
A one-page data sheet with full dimensions and potential clamping force
can be downloaded for each available model.
These are PDF files that are about 45KB in size.
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MKS1501A (for 15mm rail) |
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MKS3501A (for 35mm rail) |
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MKS2001A (for 20mm rail) |
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MKS4501A (for 45mm rail) |
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MKS2501A (for 25mm rail) |
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MKS5501A (for 55mm rail) |
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MKS3001A (for 30mm rail) |
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MKS6501A (for 65mm rail) |
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Hiwin Products & Related Links
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