226-3299 2263299 Cylinder Replacement Seal Kit for Large Open-pit Mining Wheel Loader M315C M315D

1. Quick Details of  seal 226-3299:

2.  226-3299 picture:

3. Service part number :

4. FAQ

Q: What four kinds of raw materials make up all sealing components inside this repair package?
A: The kit consists of PU elastomer, talc-filled PTFE backup material, HNBR synthetic rubber and resin dipped wear-resistant guiding fabric.

Q: What original natural color does each type of sealing accessory retain without artificial pigment blending?
A: PU main sealing rings are faint ivory white, talc doped PTFE pieces are pale silver gray, HNBR rubber fittings are matte black, resin impregnated fabric rings are warm sandy brown.

Q: What unique sealing task is undertaken by PU parts inside the loader’s steering cylinder?
A: Acting as core dynamic sealing element, PU takes advantage of balanced elasticity to stop hydraulic fluid leaking when operators steer the loader left and right flexibly during material shoveling and transportation.

Q: What is the core purpose to equip talc-filled PTFE as auxiliary backup matching primary PU seal?
A: It fills tiny gaps inside piston grooves and shields soft PU material from squeeze deformation caused by instantaneous pressure fluctuation during frequent steering switch on bumpy ground.

Q: What practical advantages does HNBR rubber own compared with traditional ordinary nitrile rubber?
A: HNBR shows excellent hydrolysis resistance and ageing resistance, keeping stable sealing effect even after long-term contact with damp and slightly deteriorated hydraulic oil on construction sites.

Q: On which specific fixed positions of cylinder do HNBR rubber components get assembled?
A: HNBR O-rings are mainly used for static sealing at cylinder end cover connecting surfaces and small threaded ports where steering oil pipes connect.

Q: What actual positive effect does resin impregnated fabric wear ring bring to piston running status?
A: It limits piston lateral deflection during steering movement, reduces direct frictional scratch between piston outer circle and cylinder inner wall to extend cylinder service life.

5. Exhibition and Wearhous

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