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DMS SEALS TECHNOLOGY CO.,LIMITED

DMS Seals - Hydraulic Seals and Oil Ring Seals Manufacturer & Supplier

The Professional Sealing Solution Supplier(O Ring Suppliers & Oil Seal Manufacturers).

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Home  > PRODUCTS  > Others  >  Piston and piston rod u cup PU seal UNS for hydraulic cylinder
Piston and piston rod u cup PU seal UNS for hydraulic cylinder

Piston and piston rod u cup PU seal UNS for hydraulic cylinder

Diameter Range
Unlimited
Pressure Range
40MPa
Temperature Range
-35~100℃
Speed
0.5m/s
Medium
Hydraulic oils ( mineral oil-based )
Price
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Pieces
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1. Installation Recommendation 


2. Installation Sizes

 

Piston 

P<5MPa

B=d+0.9

D<60

C=4

h <7

L=h+0.5

P 5-10MPa

B=d+0.7

D 60-180

C=6.5

h =7-8

L=h+0.8

P 10-20MPa

B=d+0.4

D 180-250

C=7.5

h >8

L=h+1.0

P 20-30MPa

B=d+0.2

D 250-400

C=10

h >8

L=h+1.0

Piston Rod

P<5MPa

B=D-0.9

D<60

C=4

D1=D-1

h<7

L=h+0.5

P 5-10MPa

B=D-0.7

D 60-180

C=5.5

D1=D-1

h=7-8

L=h+0.8

P 10-20MPa

B=D-0.4

D 120-180

C=6.5

D1=D-1

h>8

L=h+1.0

P 20-30MPa

B=D-0.2

D 180-250

C=7.5

D1=D-2

h>8

L=h+1.0

P 30-40MPa

B=D-0.1

D 250-400

C=10

D1=D-2

h>8

L=h+1.0


3. Application and properties

UNS seal is common use in the hydraulic cylinder, it is a typical lip seal. It can get good sealing effect in piston and piston rod. UNS seal mainly used for the piston or piston rod of heavy duty machinery and industry hydraulic.

 

4. Standard materials

TPU, CPU

 

5. Working condition

Pressure: CPU≤40MPa  TPU31.5MPa

Temperature: -35~+100℃

Speed: 0.5m/s

Medium: Hydraulic oils ( mineral oil-based )



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