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CFKS UN Oil Seal 70*33*10 Polyurethane UN Seal Cylinder Repair Seal For Excavator Cylinder
CFKS UN Oil Seal 70*33*10 Polyurethane UN Seal Cylinder Repair Seal For Excavator Cylinder - Image 2
CFKS UN Oil Seal 70*33*10 Polyurethane UN Seal Cylinder Repair Seal For Excavator Cylinder - Image 3
CFKS UN Oil Seal 70*33*10 Polyurethane UN Seal Cylinder Repair Seal For Excavator Cylinder - Image 4

CFKS UN Oil Seal 70*33*10 Polyurethane UN Seal Cylinder Repair Seal For Excavator Cylinder

The CFKS 70*33*10 UN Oil Seal 70 33 10 is a polyurethane UN seal 70×33×10 designed for excavator and hydraulic cylinder repair. It 70-33-10 provides excellent sealing, dust resistance, and durability for heavy-duty hydraulic applications.

Find your sealing solution with CFKS — contact us for a quote.

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Brand Name CFKS OEM  Accpetable
Material NBR FKM Silicone  Features  wear resistance
Dimensions Customized Certificate  ISO9001/TS16949
Type 70*33*10 UN Oil Seal  Packing 1 pc per bag

 

The CFKS UN Oil Seal 70*33*10 is manufactured from high-strength polyurethane, providing outstanding wear resistance, elasticity, and pressure endurance. Its UN-type lip design ensures reliable sealing under constant rod movement and harsh hydraulic conditions.

 

This polyurethane UN seal is engineered to prevent oil leakage, block external contaminants, and maintain smooth hydraulic cylinder performance. With optimized friction control, it enhances sealing stability and prolongs the service life of excavator cylinders.

Widely used for excavator cylinders, hydraulic cylinder repair, and construction machinery, the CFKS UN oil seal delivers strong dust protection and high sealing efficiency. It fits heavy-duty hydraulic systems that require reliable and long-lasting sealing solutions.

Frequently Asked Questions (FAQ)

Why does my CFKS oil seal fail prematurely? Common causes and prevention tips2025-06-26T15:44:39+08:00

Premature oil seal failure can result from improper installation, poor shaft finish, incorrect material selection, or excessive pressure. To prevent this, ensure the shaft surface is smooth and within tolerance, use correct tools during installation, and choose seals made from materials compatible with your media and temperature.

How to correctly install a CFKS industrial oil seal to avoid leakage2025-06-26T16:04:32+08:00

Always clean the shaft and bore before installation. Use appropriate seal drivers to avoid deformation. Lubricate the lip before fitting to reduce friction during the first rotation. Ensure the seal is seated evenly and not tilted to avoid leaks.

What to do when your CFKS hydraulic seal is leaking under pressure2025-05-20T16:33:14+08:00

Check if the pressure exceeds the seal’s rated limit. Examine for wear, hardening, or improper installation. Replace the seal if damaged, and consider upgrading to a high-pressure CFKS seal variant. Also, verify that the housing and shaft are properly aligned.

How to choose the right CFKS oil seal for extreme operating environments2025-05-20T16:34:39+08:00

For high temperatures, aggressive chemicals, or abrasive environments, choose CFKS seals made of FKM, PTFE, or high-performance elastomers. Consider using seals with protective dust lips or metal casing. Our team can recommend the best fit for your application.

CFKS Seal Manufacturing Co., Ltd.
https://cfksseals.com/
Email: cfksnacy@gmail.com Mobile/WhatsApp/Wechat: (86) 188-3097-5917
UN Hydraulic Cylinder Piston And Piston Rod Seal
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32*45*6 35*52*8 40*52*8 45*56*7 50*60*8 55*66*10 60*80*10
32*45*8 35*52*10 40*52*10 45*56*8 50*60*10 55*70*8 60*80*12
32*45*10 35*55*10 40*53*8 45*56*10 50*60*12 55*70*9 60*80*15
32*46*10 35.5*45*6 40*55*7 45*58*7 50*62*10 55*70*10 60*85*12
32*47*8 35.5*50.5*10 40*55*8 45*58*10 50*62*12 55*70*12 61*71*7
32*47*10 36*46*6 40*55*9 45*60*8 50*63*6 55*71*12 62*70*10
32*48*5 36*46*7 40*55*10 45*60*9 50*63*8 55*75*9 62*72*10
32*48*8 36*46*8 40*60*10 45*60*10 50*63*10 55*75*10 62*75*10
32*48*10 36*48*8 40*60*12 45*60*12 50*65*6 55*75*12 62*75*12
32*50*10 36*48*10 40*65*10 45*63*8 50*65*8 55*80*12 62*80*10
33*48*10 38*46*6.5 40*65*12 45*63*10 50*65*9 56*66*6 62*82*10
35*42*6 38*46*8 42*50*6 45*63*12 50*65*10 56*66*10 62*82*12
35*43*5 38*48*6 42*50*8 45*65*10 50*65*12 56*76*12 63*73*6
35*43*6 38*50*6 42*52*6 45*65*12 50*66*12 58*68*6 63*73*8
35*43*7 38*50*8 42*52*8 45*70*12 50*70*10 60*68*8 63*73*10
35*43*8 38*50*9 42*52*10 45*70*16 50*70*12 60*68*11 63*73*12
35*43*9 38*50*10 42*55*7 46*56*6 52*62*12 60*70*6 63*75*6
35*43*10 38*52*10 42*55*8 48*58*6 53*63*6 60*70*7 63*75*10
35*45*5 38*55*10 42*55*10 48*58*8 53*63*8 60*70*8 63*75*12
35*45*6 38*58*10 42*62*12 48*58*10 53*63*10 60*70*10 63*78*10
35*45*7 38*60*10 44*54*6 48*60*8 53*63*12 60*70*12 63*78*12
35*45*8 38*62*12 45*53*6 48*63*8 53*65*8 60*71*7 63*80*10
35*45*10 40*48*5 45*53*7 48*63*9 53*73*12 60*72*10 63*80*12
35*47*6 40*48*6 45*53*8 48*63*10 55*63*8 60*73*8 63*83*10
35*47*7 40*48*8 45*53*10 50*57*10 55*63*10 60*75*8 63*83*12
35*47*8 40*48*10 45*55*6 50*58*6 55*65*6 60*75*9 64*74*6
35*47*10 40*50*6 45*55*7 50*58*8 55*65*7 60*75*10 64*80*8

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