Highlights
Key Advantages
- Direct swap for Atlas Copco/Epiroc part numbers 3115182201 and 3115 1822 01—same fitment, no modifications
- Keeps hydraulic impact steady by preventing pressure bleed between oil and air circuits
- Elastomer compound handles the heat and pressure cycling typical in hard rock drilling
- Can be changed during a standard service shift—no special tools or head disassembly tricks needed
- Stops air from forcing its way into the hammer oil, which otherwise foams up and eats at seals and bushings
Use Cases
Applications
- Production drilling underground and on surface benches with COP 2560+ and COP 2550+ rigs
- Long-hole open stoping and drifting where COP 1838HD+ or 1838HD are the main hammer
- Rock bolting and cable bolting setups using COP 1238K and COP 1638HD drills
- Tunnel face drilling and cross-cut development with COP 2238HD+ or COP 1840+
- Dimension stone and quarry block extraction running COP MD20 hammers
- Any COP drill rebuilds where you’re swapping out all front-end wear parts on a schedule
Specs
Technical Specifications
| Brand | Epiroc (formerly Atlas Copco) |
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| Part Number (OEM) | 3115182201 |
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| Alternative Part Number | 3115 1822 01 |
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| Description | Diaphragm / Membrane |
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| Compatible Drill Models | COP 1238K, COP 1638HD, COP 1638HD+, COP 1838+, COP 1838HD, COP 1838HD+, COP 1838HE+, COP 1838MUX, COP 1838MUX+, COP 1840+, COP 2238HD, COP 2238HD+, COP 2550+, COP 2560, COP 2560+, COP MD20, COP SC25 |
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Details
Detailed Description
Atlas Copco Rock Drill Machine 3115182201 Diaphragm Epiroc 3115 1822 01 Membrane cop 2560+ parts
Brand :Epiroc
Part No. :3115182201
Description :Diaphragm
Use in :Cop 1238k , Cop 1638hd , Cop 1638hd+ , Cop 1838+ , Cop 1838hd , Cop 1838hd+ , Cop 1838he+ , Cop 1838mux , Cop 1838mux+ , Cop 1840+ , Cop 2238hd , Cop 2238hd+ , Cop 2550+ , Cop 2560 , Cop 2560+ , Cop Md20 , Cop Sc25
FAQ
FAQ
Is this a genuine Epiroc-manufactured diaphragm?
Yes. It’s made to Epiroc specs and comes through the same supply chain that feeds service centres. You get the same material spec and dimensions as what was originally in the drill, without the dealer markup.
How do I confirm it fits my COP hammer?
Go through the model list in the specs. If your hammer is a COP 2560, 2560+, 1838HD+, 2550+, 1638HD or any of the others listed, it’s a match. Still in doubt? Grab your drill’s serial number and cross-check with the parts book—that’s always the safest call.
What are the first signs that this diaphragm is failing?
You’ll notice impact power dropping off even though pressures look normal. Oil starts misting around the front guide or dripping from the chuck. Sometimes the oil tank will show foam or a milky color from air contamination. If you spot any of these during a shift inspection, it’s time to open the front head.
How fast can I get it on site?
We stock the 3115182201 diaphragm in key warehouses. Most orders ship same day and land in 3–7 business days. If you’re down and losing metres, we can push it via express freight—just flag it as urgent when you enquire.
Can our crew fit this without calling in a specialist?
If your maintenance team is comfortable stripping the front head and has the service manual to hand, they can do it. Clean surfaces, watch the torque sequence, and make sure the new diaphragm seats evenly. If they’ve never done one before, having an experienced tech supervise the first swap isn’t a bad idea.
