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Sand-vik Rock Drill Seals 87218939

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Sand-vik Rock Drill Seals 87218939
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Features
Specifications
Fits: Sand-vik DD311, DD321, DL421 Series Underground Rock Drills
Function: Hydraulic Cylinder Pressure Seal (feed/rotation Circuit), Prevents Internal Leakage.
Type: Single‑acting U‑cup (one‑way Pressure)
Material: NBR (nitrile Rubber) Standard; FKM Upgrade Available
Pressure: Up To 250 Bar (max 300 Bar)
Temperature: −30 °C To +100 °C (NBR); Up To +200 °C (FKM)
Dimensions (typical): ID ≈ 22 Mm, OD ≈ 30 Mm, Width ≈ 4 Mm
Weight: ≈ 0.01 Kg
Basic Infomation
Place of Origin: CHINA
Brand Name: Sand-vik
Model Number: 87218939
Payment & Shipping Terms
Packaging Details: Original packaging
Delivery Time: 15days
Payment Terms: T/T
Supply Ability: 9999
Product Description

Sand-vik Rock Drill Seal 87218939


Part No.: 87218939

Name: U‑Seal / Hydraulic U‑Cup Seal

Brand: Sand-vik

Fits: Sand-vik DD311, DD321, DL421 series underground rock drills

Function: Hydraulic cylinder pressure seal (feed/rotation circuit), prevents internal leakage.


1. Technical Specifications


  • Type: Single‑acting U‑cup (one‑way pressure)
  • Material: NBR (nitrile rubber) standard; FKM upgrade available
  • Pressure: Up to 250 bar (max 300 bar)
  • Temperature: −30 °C to +100 °C (NBR); up to +200 °C (FKM)
  • Dimensions (typical): ID ≈ 22 mm, OD ≈ 30 mm, Width ≈ 4 mm
  • Weight: ≈ 0.01 kg
  • Cross Ref: 87218939EP (EP upgrade)
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