Epiroc
ACCUMULATOR 3115 3451 81 / 3115345181 — Epiroc (Atlas Copco) Compatible
ACCUMULATOR is a high-strength aftermarket spare part fully compatible with Epiroc hydraulic drifters and rock drills. Precision CNC-machined to original-part tolerances. Contact us for stock and delivery on OEM number 3115 3451 81.
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ACCUMULATOR — OEM 3115 3451 81 / 3115345181
- OEM Number
- 3115 3451 81
- Also written as
- 3115345181
- Compatible Brand
- Epiroc
- OEM brand
- Epiroc (Atlas Copco)
- Part Type
- Drifter
What the ACCUMULATOR does
The accumulator smooths the pressure pulses the percussion mechanism generates. Each stroke sends a shock wave back into the supply line; the accumulator absorbs it and returns the energy on the next cycle. Without a functioning accumulator those pulses travel into the hoses, pump and valves instead.
Signs it needs replacing
- Hoses visibly jumping or hammering during percussion
- Reduced impact energy and slower penetration
- Short hose and fitting life throughout the hydraulic circuit
- Loss of charge pressure between shifts
Before you fit it
Check the gas charge at the interval the machine manual gives — a discharged accumulator is a common cause of premature hose and pump failure on a percussion circuit. Replace the diaphragm whenever the accumulator is opened.
General guidance for this class of component. Always work to the torque figures, clearances and service intervals in your machine's own manual.
About This Part
Which machines does ACCUMULATOR (OEM 3115 3451 81) fit?
It is used on Epiroc hydraulic rock drills and drifters. Models we already carry parts for: 1638+ ROCK DRILL (DRIFTER), 1838+ ROCK DRILL (DRIFTER), 1838HD+ ROCK DRILL (DRIFTER), 3060ME ROCK DRILL (DRIFTER), 3060MUX ROCK DRILL (DRIFTER), 4050MUX ROCK DRILL (DRIFTER). If yours is not listed, send us the OEM number and we will confirm the fit.
How should I write the OEM number?
This part number is written two ways: 3115 3451 81 (spaced) and 3115345181 (unspaced). Both refer to the same part, and the site search finds either spelling.
Is this an original Epiroc (Atlas Copco) part?
No. This is an aftermarket part manufactured by KY Rock Drill and CNC-machined to original-part tolerances. We are not affiliated with or an authorised dealer for Epiroc (Atlas Copco); the OEM number is quoted only to identify compatibility.
