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

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

Верхний цилиндр 86687217 Подлинный OEM Верхний блок цилиндра для HC20 Гидравлический скальный бур/рыхлитель

• Part number: 86687217
- Вес детали:
• Product name: Upper cylinder (Hydraulic Rock Drill Upper Cylinder Block)
• Applicable equipment: HC20
• Replacement condition: Long-term use; replace only when damaged (e.g., inner wall scratches, cracks, oil port deformation)
- Основные преимущества: Подлинная OEM, короткая доставка, конкурентоспособная цена
• Key function: Houses upper hydraulic components (e.g., valves, small pistons), bears high hydraulic pressure, ensures oil circuit smoothness

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Описание

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:

Durability: Heat-treated alloy steel (tensile strength ≥ 750 MPa) resists cracks and pressure deformation.
Precision: Inner wall polished to Ra ≤ 0.4μm, ensuring no component wear; coaxiality ±0.002mm for perfect fit.
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 Parts
Модель	Часть №.	Qty.	Единица
HC20	86686649	1	Pcs
HC20	86668704	1	Pcs
HC20	86677176	1	Pcs
HC20	86250107	1	Pcs
HC20	86221595	1	Pcs
HC20	86679388	1	Pcs
HC20	86687217	1	Pcs
HC20	86668662	2	Pcs
HC20	86639317	2	Pcs
HC20	86668738	1	Pcs
HC20	86668746	1	Pcs
HC20	86668753	1	Pcs
HC20	86634045	1	Pcs
HC20	95421335	8	Pcs
HC20	86600632	1	Pcs
HC20	86580966	1	Pcs
HC20	95303368	3	Pcs
HC20	86668613	1	Pcs
HC20	86677150	1	Pcs
HC20	86639309	1	Pcs
HC20	86668936	1	Pcs
HC20	86668860	1	Pcs
HC20	86668886	1	Pcs
HC20	86684263	1	Pcs
HC20	86676970	8	Pcs
HC20	95303335	2	Pcs
HC20	86668639	1	Pcs
HC20	86668993	1	Pcs
HC20	86669017	1	Pcs
HC20	86685435	1	Pcs
HC20	86668647	1	Pcs
HC20	86668902	1	Pcs
HC20	86221918	1	Pcs
HC20	86669025	1	Pcs
HC20	86281938	1	Pcs
HC20	86668910	2	Pcs
HC20	86668654	1	Pcs
HC20	86318516	1	Pcs
HC20	86668662	1	Pcs
HC20	86420098	1	Pcs
HC20	86668761	1	Pcs
HC20	86668779	1	Pcs
HC20	86668928	8	Pcs
HC20	95303335	1	Pcs
HC20	86262698	2	Pcs
HC20	86676863	1	Pcs
HC20	86267069	2	Pcs
HC20	86684271	1	Pcs
HC20	86668795	1	Pcs
HC20	86668829	1	Pcs
HC20	86325792	1	Pcs
HC20	86677184	1	Pcs
HC20	86677192	1	Pcs
HC20	86668811	1	Pcs
HC20	86668944	1	Pcs
HC20	86676822	1	Pcs
HC20	86625175	1	Pcs
HC20	86668951	1	Pcs
HC20	86678224	1	Pcs
HC20	86666351	1	Pcs
HC20	86676889	1	Pcs
HC20	86676897	1	Pcs

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