• Part number: 86749124
• Part weight:
• Product name: Strike piston (Hydraulic Rock Drill Core Impact Piston)
• Applicable equipment: HC95 Hydraulic Rock Drill / Hydraulic Drifter
• Replacement condition: Replace based on actual usage (e.g., impact surface wear > 0.5mm, cracks, piston ring groove damage)
• Core advantages: Genuine OEM, short delivery, competitive price
• Key function: Converts hydraulic pressure into mechanical impact force, drives shank and drill bit for rock-breaking
In HC95 Hydraulic Rock Drill (or Hydraulic Drifter) systems, the Strike piston 86749124 is the “heart of impact power”—it’s the core component that converts high-pressure hydraulic oil (up to 2000 psi) into cyclic mechanical impact force (up to 18 kN for HC95), directly striking the shank to drive the drill bit into rock. This part endures extreme stress: each working cycle involves high-speed reciprocation (1500-1800 bpm) and hard metal-to-metal collision, making its material strength and precision critical to drill performance.
This Strike piston 86749124 avoids these risks as a genuine OEM part, engineered to Montabert’s strict standards. Unlike generic alternatives, its impact surface is made of heat-treated high-carbon alloy steel (HRC 55-60) with a wear-resistant coating—this ensures minimal wear even after long-term heavy-duty use. The piston’s outer diameter and concentricity are machined to ±0.003mm tolerance, ensuring seamless fit with HC95’s cylinder liner (minimizing hydraulic oil leakage and energy loss).
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