LMKS-R pneumatic normally closed roller linear guide clamps hold rails rigidly when air pressure is lost. Designed for 15–65mm roller linear guides, this clamp fits HIWIN, THK, PMI, NSK, WON and other mainstream guide brands.

We are a professional manufacturer of pneumatic normally closed rail clamps,supplying reliable clamping solutions for global industrial automation equipment.Our NC rail brakes offer stable safety and precise positioning to meet strict machine operation requirements.Compared with imported original parts,our linear guide clamps cut your total cost by 50%-70%.Large in-stock inventory supports fast delivery to avoid long lead times and keep your projects on schedule.
-We also support customization based on your specific dimensions.The lead time for customized products is approximately 7~18 days.
-For any parameters and information not shown here,please contact our sales team for inquiries or to obtain our full catalog.

LMKS25R pneumatic normally closed roller linear guide clamp.STEP
LMKS30R pneumatic normally closed roller linear guide clamp.STEP
LMKS35R pneumatic normally closed roller linear guide clamp.STEP
LMKS45R pneumatic normally closed roller linear guide clamp.STEP
LMKS55R pneumatic normally closed roller linear guide clamp.STEP
LMKS65R pneumatic normally closed roller linear guide clamp.STEP

-When there is air pressure,the linear rail clamp is released;when there is no air pressure,the linear guide is clamped by spring force.
-Depending on the holding force requirements of the clamping mechanism,standard connection or pressurized connection can be used.

Pneumatic Normally Closed Rail Clamping Element Advantages:
-Lead Time:Large stock inventory.
-Cost-Effective: 50%~70% cost savings.
-High Durability:Up to 5 million static clamping cycles.
-Broad Range of Products:For all common profile rail guides.
-Completely replace the Zimmer or NBK brand MKS series linear guide clamp.
-Customizable Design:Tailored to meet specific application requirements.
-Machining Precision:Instead of ordinary milling,we adopt precision grinding to ensure much higher accuracy.
-Quality Control:Every clamp will go through full performance testing and inspection before shipment to ensure 100% qualified products.
-Superior Material:We use 42CrMo alloy steel for the clamp's main body,while most other Chinese suppliers use C45 steel.Our clamps offer higher strength,better wear resistance and longer service life.
-Corrosion Resistance:We use electroless sandblasting nickel plating,which provides excellent anti-rust and anti-corrosion performance,a premium appearance,and resistance to scratching or peeling after long-term use.
Model | LMKS | LMKS-04 | LMKS-03 |
Open air pressure | 0.55MPa | 0.4MPa | 0.3MPa |
Max working pressure | 0.6MPa | ||
Response time | ≤0.06s | ||
Operating temperature | 0℃~70℃ | ||
Clamping service life | 5 million times | ||
(1)Standard type rated holding force and air consumption
Model Rated holding force(N) Air consumption (ℓ/cycle(ANR))
Standard connection/pressurized connection Standard connection/pressurized connection
LMKS25R 750/1400N 0.021/0.07
LMKS30R 1050/2600N 0.03/0.12
LMKS35R 1250/ 3250N 0.03/0.13
LMKS45R 1450/3300N 0.07/0.3
LMKS55R 1450/3300N 0.07/0.3
LMKS65R 1450/3000N 0.07/0.3
Note: The data in the table are values at 0.6MPa air pressure. The holding force is proportional to the air pressure within the working pressure range.
(2)0.4MPa low pressure type rated holding force and air consumption
Model Rated holding force(N) Air consumption (ℓ/cycle(ANR))
Standard connection/pressurized connection Standard connection/pressurized connection
LMKS25R-04 650/1300N 0.016/0.05
LMKS30R-04 850/1700N 0.03/0.09
LMKS35R-04 1100/ 1900N 0.03/0.1
LMKS45R-04 1350/2000N 0.07/0.2
LMKS55R-04 1350/2000N 0.07/0.2
LMKS65R-04 1350/2000N 0.07/0.2
Note: The pressurized connection data is the value at 0.4MPa air pressure.
(3)0.3MPa low pressure type rated holding force and air consumption
Model Rated holding force(N) Air consumption (ℓ/cycle(ANR))
Standard connection/pressurized connection Standard connection/pressurized connection
LMKS25R-03 350/880N 0.016/0.05
LMKS30R-03 750/1320N 0.03/0.09
LMKS35R-03 850/ 1800N 0.03/0.1
LMKS45R-03 1100/1900N 0.07/0.2
LMKS55R-03 1100/1900N 0.07/0.2
LMKS65R-03 1100/1900N 0.07/0.2
Note: The pressurized connection data is the value at 0.3MPa air pressure.

