Highlights
Key Advantages
- Ground to the same tolerances as the factory piston—no mid-shift jamming or odd wear patterns.
- Impact face hardened deep enough to resist mushrooming even after months of hard granite.
- We've seen these outlast stock pistons by 15–20% in Scandinavian tunneling jobs.
- Drops into YH60, YH65, and YH70 carriers without shimming or rework.
- Holds its diameter tight, so you don't bleed impact energy past the seals.
Use Cases
Applications
- Production drilling in underground metal mines—copper, zinc, gold.
- Tunnel face drilling and rock bolting in highway or rail projects.
- Quarry benching where hole straightness matters.
- Replacement for original pistons that have worn past spec in YH-series rigs.
- Heavy civil jobs: dam foundations, shaft sinking, deep excavations.
Specs
Technical Specifications
| OEM Part Number | 51206332 / 512 063 32 / 2651206332 |
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| Compatible Models | Ingersoll Rand YH60, YH65, YH70 |
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| Brand | Yamamoto / Aftermarket |
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| Material | Case-hardened wear-resistant alloy steel |
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| Application | Hydraulic rock drill impact assembly |
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| Surface Finish | Precision ground & hardened (58-62 HRC typical) |
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Details
Detailed Description
51206332 Piston INGERSOLL RAND 512 063 32 for Rock Drill Spare Parts YH60 YH65 YH70 Yamamoto 2651206332
The Ingersoll Rand piston 51206332 is a precision-machined impact component designed for efficient energy transfer in Ingersoll Rand YH60, YH65, and YH70 rock drilling systems. This piston plays a key role in generating consistent impact force, ensuring stable drilling performance, and maintaining operational efficiency during continuous heavy-duty rock drilling operations.
Made of high-strength wear-resistant alloy steel and designed for precise fitting, the 51206332 piston is fully compatible with Ingersoll Rand hydraulic rock drills, suitable for applications such as mining, tunneling, and construction where durability, reliability, and long service life are critical.
FAQ
FAQ
Will this piston fit a YH70 that's been running older OEM parts?
Yes, it's a straight swap. Dimensions and shoulder profiles match the factory drawing. If your carrier is still on original bushings, we'd recommend a quick check of the bore to avoid early galling—but that goes for any new piston.
What's the real-world life I can expect in abrasive ground?
A lot depends on water pressure, alignment, and operator habits. That said, our customers in Australian iron ore get 400–500 percussion hours out of one before the impact face starts showing measurable wear. Granite and quartzite tend to eat pistons faster; softer sedimentary formations stretch that number out.
How do you handle heat treatment?
Through-hardened core with a deeper case on the striking end and the seal running surfaces. Rockwell tested after tempering so we don't ship anything brittle.
I need 20 pistons for a project in Chile. How fast can you ship?
Stock orders leave our warehouse in 1–2 business days. For a 20-unit batch we usually air-freight or use DDP courier—count on 5–10 business days door to door depending on customs.
What if the piston fails early?
We stand behind our parts with a 6-month warranty on defects in material or workmanship. Keep in mind, wear parts won't be covered if the failure comes from contaminated hydraulic fluid or running a worn chuck bushing. We'll ask for a few photos and a quick description—then sort it out.
