Machinery Parts Rubber Piston Seal , OK Seal Hydraulic Cylinder Piston Rings

Basic Information
Place of Origin: Mainland
Brand Name: GDK
Model Number: OK Seal
Minimum Order Quantity: 1
Price: 0.09~5.68 usd/pcs
Delivery Time: 5-7 days after received the payment
Payment Terms: T/T, L/C, Western Union, D/A, D/P, MoneyGram
Supply Ability: 10000pcs one month
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Type: Piston Seal Size: Standard Size , Customized
Material: F-thermoplastic+NBR Application: Excavator Parts , Construction Machinery
Packing: Neutral Packing , Customize , Or Customer's Brand Quality: High Performance , High Precision
Temperature: -30℃ +110℃ Speed: Less Than 1m/s
Model Number: OK Seal Medium: Hydraulic Oil, Fire Retardant Liquid, Water, Gas
High Light:

hydraulic piston seal


rubber piston cup seals

Hydraulic piston seal OK seal rubber seal hydraulic cylinder piston rings    


OK type piston seal are mainly used in heavy load hydraulic equipment , especially for double-acting piston .

This seals can be used under working pressure of 500 bar , even more under some circumstances .


Hydraulic dust seal having been used widely in hydraulic cylinders, UN can be used for piston and rod applications. Other hydraulic seals material options: NBR, HNBR, PTEE, FPM, MVQ, EPDM, PTFE, and so on.




Small shape

Good performance in bearing impact load 

Low firction when staring and running even after working for a long time 

Easy installation


Good abrasion resistance


Good anti-extrusion capacity under high pressure and big gap due to the special material

Apply to the groove based on international standard SO7425-1




Seals in cylinder : F-thermoplastic

Expansion ring : NBR of shore hardness 70 degree


Working range


Working pressure : less than 500 Bar

Temperature :  -30℃ +110℃

Speed : less than 1m/s




Remove burrs and overturns clearly when installing groove 

OK seal uasually applies to the closed grooves systems



Sample Free
OEM and ODM Welcome
Size Standard Size or Customized
Style Mechanical Seal
Product Name OK Hydraulic Piston Seal
Port  Guangzhou , Shenzhen , Hongkong
Trade Term EXW , FOB , CIF and so on
Packing Neutral Packing , Customized , Or customer's brand
Payment T/T, L/C, Western Union, D/A, D/P, MoneyGram



Our Products' Range :


Packaging & Delivery


Packaging Details

Neutral Packing , Customize , Or customer's Brand


Delivery Time


5-7 day after reveived the payment



Type of shipping :


EMS , DHL , TNT , UPS , FeDex , By air & By sea .


How to order from us?


1. Contact GDK's salesman to get a quotation.( by Email, Telephone, Trademessage)


2. Send GDK your asked type and detailed instruction(mateials, size, quantity,color, special requestes etc.)


3. Will send price and other details informations to you,send back Purchaser Order for approval


4. After confirm order and timeline, GDK'll start production procedure once receive payment.


5. If require sample, please inform GDK in advance.


6. 5~10 working days for making seals.


7. Quality Checking, GDK can send bulk order photo for approval before packing, if you need.


8. Packing .


9. Order release for shipping.


10. Any issue,please contact GDK after receive package. GDK'll invest and consult with you for solution.


11. Quality and Service are GDK principle.


Please feel free to contact us if you need more details about our factory and products.

Contact Details

WhatsApp : +008613826265687