1. Quick Details of  seal 17A-50-12441:

2.  17A-50-12441 parts on group :

3. 17A-13-05110  picture:

4. Service part number :

 
5. FAQ
Q: Is this pu material suitable for the dust seal ?
A: PU is Polyurethane elastomer, the most mainstream material for excavator hydraulic cylinder dust seals.It features high wear resistance, high tear strength, excellent low-temperature toughness, and good anti-aging performance. Let me talk about the core Advantages of PU Dust Seal for Komatsuu Excavators.

• Superior dust & mud scraping performancePU has high surface hardness and rigidity, which can tightly fit the piston rod surface, effectively scrape off sand, soil, gravel and sediment on the rod; prevent dirt from entering the hydraulic cylinder and damaging oil seals, bearings and guide rings.
• Excellent wear & abrasion resistanceFar better than NBR rubber and ordinary rubber materials. It adapts to harsh working conditions such as construction sites, mines and earthwork operations, with long service life.

Q:Can you tell the difference Between PU Dust Seal and NBR Rubber Dust Seal ?

A: 

• PU: Higher hardness, better wear resistance, strong dust scraping ability, longer service life, suitable for heavy-duty harsh working conditions.
• NBR Rubber: Softer texture, lower cost, poorer wear resistance, easy to wear and deform in mine and construction site, only for light-duty use.

Q: What will happen if I install the dust seal in the wrong direction?
A: If the PU dust seal is installed in reverse direction:

• The dust lip cannot scrape off sand, mud and dust from the piston rod.
• Dirt will go straight into the hydraulic cylinder, scratch the rod surface.
• It will damage the main oil seal, buffer seal and guide ring quickly.
• Early oil leakage, cylinder internal leakage, causing boom drop and weak operation.
• The dust seal itself will turn over, crack and deform in a short time.
• Water and impurities enter the hydraulic system, make hydraulic oil emulsified and deteriorated.

6. Exhibition and Wearhous

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