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Upper cylinder 86687217 - Main View of Genuine OEM Upper Cylinder Block for HC20 Hydraulic Rock Drill/Drifter
Upper cylinder 86687217 - Main View of Genuine OEM Upper Cylinder Block for HC20 Hydraulic Rock Drill/Drifter

Upper cylinder 86687217 Genuine OEM Upper Cylinder Block for HC20 Hydraulic Rock Drill/Drifter

• Part number: 86687217
- Parça ağırlığı:
• Product name: Upper cylinder (Hydraulic Rock Drill Upper Cylinder Block)
- Uygulanabilir ekipman: HC20
• Replacement condition: Long-term use; replace only when damaged (e.g., inner wall scratches, cracks, oil port deformation)
- Temel avantajlar: Orijinal OEM, kısa teslimat, rekabetçi fiyat
• Key function: Houses upper hydraulic components (e.g., valves, small pistons), bears high hydraulic pressure, ensures oil circuit smoothness

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  • Güvenilir ancak Uygun Fiyatlı
  • 100% Uyum Garantili
  • Zamanında Teslimat Programı
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Açıklama

In HC20 Hydraulic Rock Drill (or Hydraulic Drifter) systems, the Upper cylinder 86687217 is the “upper hydraulic hub”—it’s responsible for mounting key upper components and maintaining stable oil pressure for the drill’s control system.

From mining maintenance experience, generic upper cylinders often fail early: low-strength materials (tensile strength < 600 MPa) crack under pressure in 2000-2500 hours, and rough inner walls cause component wear.
This Upper cylinder 86687217, as genuine OEM, meets strict standards:
  1. Dayanıklılık: Heat-treated alloy steel (tensile strength ≥ 750 MPa) resists cracks and pressure deformation.
  2. Precision: Inner wall polished to Ra ≤ 0.4μm, ensuring no component wear; coaxiality ±0.002mm for perfect fit.
  3. Oil circuit stability: Smooth oil ports prevent oil flow resistance, maintaining system efficiency.
With short delivery (no 2-3 week waits) and good pricing, it’s ideal for mines needing long-term reliability—keeping HC20’s upper hydraulic system stable for years.
Montabert HC20 Parçaları
ModelParça No.AçıklamaAğırlık/KgMiktar.BirimAlternatif Parça No.
HC20866866491Adet
HC20866687041Adet
HC20866771761Adet
HC20862501071Adet
HC20862215951Adet
HC20866793881Adet
HC20866872171Adet
HC20866686622Adet
HC20866393172Adet
HC20866687381Adet
HC20866687461Adet
HC20866687531Adet
HC20866340451Adet
HC20954213358Adet
HC20866006321Adet
HC20865809661Adet
HC20953033683Adet
HC20866686131Adet
HC20866771501Adet
HC20866393091Adet
HC20866689361Adet
HC20866688601Adet
HC20866688861Adet
HC20866842631Adet
HC20866769708Adet
HC20953033352Adet
HC20866686391Adet
HC20866689931Adet
HC20866690171Adet
HC20866854351Adet
HC20866686471Adet
HC20866689021Adet
HC20862219181Adet
HC20866690251Adet
HC20862819381Adet
HC20866689102Adet
HC20866686541Adet
HC20863185161Adet
HC20866686621Adet
HC20864200981Adet
HC20866687611Adet
HC20866687791Adet
HC20866689288Adet
HC20953033351Adet
HC20862626982Adet
HC20866768631Adet
HC20862670692Adet
HC20866842711Adet
HC20866687951Adet
HC20866688291Adet
HC20863257921Adet
HC20866771841Adet
HC20866771921Adet
HC20866688111Adet
HC20866689441Adet
HC20866768221Adet
HC20866251751Adet
HC20866689511Adet
HC20866782241Adet
HC20866663511Adet
HC20866768891Adet
HC20866768971Adet

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