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3115504405 FLUSHING HEAD rock drill parts for Epiroc Cop1838HD+ 3115 5044 05 Cop 1638hd+ 2238hd+

Where the flush keeps up with the drill.

The 3115504405 Flushing Head is a machined hydraulic component that routes air, water, or a mix through the front end of Epiroc and Atlas Copco rock drills—specifically the COP 1838HD+, 1638HD+, and 2238HD+ models. Built from hardened alloy steel, its port geometry and sealing lands are cut to OEM-level tolerances so the flushing medium reaches the bit face at the right pressure, without bypass or turbulence. The result: cuttings clear faster, the hole stays cleaner, and the bit runs cooler.

When the flushing circuit is stable, you typically see less regrinding, lower thermal load on the front end, and more consistent penetration shift after shift. Net weight is roughly 1.2 kg. We ship worldwide in 5 working days, and you can confirm fit with your serial range before ordering.

3115504405 FLUSHING HEAD rock drill parts for Epiroc Cop1838HD+ 3115 5044 05 Cop 1638hd+ 2238hd+
#219
Highlights
Key Advantages
  • Sealing lands machined to match OEM groove profiles—no odd extrusion paths, no slow pressure leaks that cook seals early.
  • Radial port windows and internal bore finished to stop cuttings packing around the bit and keep air/water flow predictable in broken ground.
  • Alloy steel body that handles the vibration and abrasive dust common in hard rock headings without cracking or wearing oval.
  • Fits Cop 1838HD+, 1638HD+, 2238HD+; we cross-check your serial range so you know the part will seat correctly before it ships.
  • Packed and dispatched to arrive within 5 working days—realistic lead times, not marketing claims.
Use Cases
Applications
  • Front-end rebuilds on Cop 1838HD+ drifters in underground hard rock mining where dust control makes or breaks the shift.
  • Surface quarry rigs running 1638HD+ hammers in abrasive formations—keeps fines moving and bit temperature down.
  • Tunneling jumbos with 2238HD+ drifters that need steady flushing to avoid bit scouring and rod jams.
  • Workshop maintenance kits: swap the flushing head, seal set, and mating front part together to cut repeat downtime.
  • Construction drilling in fractured rock where intermittent water or air flow leads to stuck strings—this head keeps the path open.
Specs
Technical Specifications
Part Number3115504405 (also listed as 3115 5044 05)
DescriptionFlushing Head for Hydraulic Rock Drill
Compatible ModelsEpiroc/Atlas Copco COP 1838HD+, 1638HD+, 2238HD+
Estimated WeightApprox. 1.2 kg (confirm for shipping label)
MaterialHardened alloy steel, sealing surfaces ground smooth
Details
Detailed Description
3115504405 Spare Parts FLUSHING HEAD rock drill for Epiroc Cop1838HD+ 3115 5044 05
3kg
For Cop 1638hd+ , Cop 1838hd+ , Cop 2238hd+

The Epiroc Flushing Head 3115504405 is a precision-engineered hydraulic component designed for Epiroc and Atlas Copco rock drills and drilling equipment. Manufactured from high-quality materials with precisely machined air and water channels, it ensures efficient flushing, correct flow distribution, and reliable drilling performance under heavy-duty operating conditions. By sharing your machine model, compatibility can be verified and a competitive quotation provided.


3115504405, 3115 5044 05 FLUSHING HEAD ATLAS COPCO If you’re building a drilling string that has to survive vibration, abrasive dust, and heat while still pushing clean flushing medium exactly where it’s needed, the flushing head is one of the parts that quietly decides whether the shift ends smoothly or ends early. The 3115504405, 3115 5044 05 FLUSHING HEAD ATLAS COPCO is designed to manage that “invisible” job: guiding air/water flow through the front-end assembly so cuttings evacuate efficiently, tool temperature stays controlled, and the rock drill keeps delivering stable performance under load.  At 3GEN Export, we supply OEM-standard replacements built for reliability, fit, and long service life, so you can restore consistent flushing behavior and reduce the risks that come from leakage, flow restriction, or misalignment. We deliver worldwide in 5 working days.  What the flushing head does in a rock drill system A rock drill’s front-end has two big responsibilities: keep the mechanical stack aligned and keep the flushing path clean, sealed, and predictable. The 3115504405, 3115 5044 05 FLUSHING HEAD ATLAS COPCO supports that second responsibility by forming a controlled passage for flushing media (air, water, or air-water mix depending on your setup) to travel through the front section and into the drilling path.  When flushing is stable, you typically gain:  Cleaner hole condition and faster cuttings evacuation  Lower regrinding (less energy wasted)  Better bit life and less thermal stress  More consistent penetration rate due to reduced clogging and dust packing  If the flushing head is worn or damaged, symptoms can include pressure drop, leakage at seal points, abnormal dust, inconsistent cuttings removal, and increased heat marks or premature wear on nearby components.  Where 3115504405 fits Online parts references list 3115504405, 3115 5044 05 as the flushing head used in the front-part group of the COP 1838HD+ rock drill family (Atlas Copco / Epiroc naming seen in catalogs).  That placement matters because the flushing head interacts with multiple precision-matched surfaces around the front-end: sealing grooves, flow ports, and alignment shoulders that must sit correctly to prevent bypass flow, turbulence, and seal damage.  Key design features you can see in the photos Even without a dimension sheet, the images show the kind of geometry typically required for controlled flushing:  Precision cylindrical body with multiple grooves/lands for sealing and seating  Radial port windows for flow distribution  Axial bore section with machined internal surface finish  Multiple small holes near the upper band (often used for distribution, balancing, or routing depending on design)  These features are not cosmetic; they determine whether the flushing medium arrives with the right pressure profile and whether the seals survive the vibration environment.  Why OEM-standard machining matters for this part The 3115504405, 3115 5044 05 FLUSHING HEAD ATLAS COPCO is a tolerance-driven component. Small deviations can create big downstream problems:  Seal groove geometry out of spec can cause extrusion, slicing, or micro-leaks that turn into major pressure loss.  Misaligned port timing can reduce flow at the bit, increasing dust packing and heat.  Poor surface finish can accelerate seal wear and create a “polishing” failure mode where leakage gets worse over time.  Incorrect concentricity can introduce uneven contact and premature wear in adjacent parts.  For that reason, an OEM-standard replacement should be produced with controlled machining, stable material quality, and consistent inspection, especially around sealing surfaces and flow channels.  Technical details and practical specifications (application-based) Because exact factory dimensions vary by revision and rock drill configuration, the most useful “specs” for buyers are the functional and inspection points that determine fit and service life.  Material and build (typical expectation for this class of component) Engineered alloy steel suitable for cyclic loads and vibration environments  Machined sealing lands and port edges with controlled finish  Wear-resistant surfaces designed to work with sealing elements and mating bores  Functional interfaces External sealing grooves/lands to prevent bypass flow  Radial port window to route flushing medium where it needs to go  Internal bore section that must remain clean, round, and smooth  Quality checks recommended on arrival Visual inspection of all edges and port windows for burrs  Check sealing lands for nicks or impact marks  Confirm that port openings are clean and free of debris  Dry-fit check (no forcing) in the mating section during installation  Estimated weight (for packing and freight planning) Estimated net weight for the 3115504405, 3115 5044 05 FLUSHING HEAD ATLAS COPCO: approximately 1.2 kg.  This is an estimate based on the visible form factor and typical material density for similar front-end flushing components. If you need an exact shipping weight for a formal quote or customs documents, 3GEN Export can confirm from the packed shipment details.  Compatibility: which ATLAS COPCO / Epiroc models use it Based on publicly listed parts tables, 3115504405, 3115 5044 05 is referenced as a flushing head for the COP 1838HD+ rock drill / drifter family.  Confirming fit the right way (recommended) Because rock drills often have revisions tied to serial ranges, always confirm using at least one of the following:  Your rock drill model and variant (exact suffix)  Machine or drill rig serial range  Parts manual breakdown for the front-end group  If you share your rock drill model/serial range, I can help you create a “fitment confirmation checklist” you can use with your team before ordering.  Related front-end parts commonly ordered together In the same publicly listed front-part grouping, 3115504200 (front part) appears adjacent to 3115504405 (flushing head).  In real maintenance cycles, buyers often bundle:  Flushing head  Seal set (O-rings/back-ups if used)  Front-end mating part(s) if there is scoring or oval wear  Fasteners or retainers specific to the assembly design  This approach reduces repeat downtime and prevents “new part + worn mating surface” failures.  Installation overview This is a practical, workshop-friendly outline. Always follow your machine manual and lockout procedures.  Tools and prep Clean bench area and lint-free wipes  Appropriate solvent/degreaser (compatible with seals)  Inspection light and magnification if available  Correct assembly lubricant (seal-safe)  Torque tools if any fasteners are involved in your specific design  Step-by-step installation guidance Depressurize and isolate the system completely (air/water/hydraulic as applicable).  Remove the front-end cover/retainer according to your manual and expose the flushing head position.  Inspect the bore and mating surfaces. If you see deep scoring, pitting, or heat discoloration, address the mating component before installing the new part.  Clean the cavity and verify that no chips, metal dust, or seal fragments remain inside.  Inspect and replace seals if the design uses them. Never reuse flattened or cut seals in a high-vibration zone.  Lightly lubricate sealing surfaces with a seal-safe lubricant.  Insert the 3115504405, 3115 5044 05 FLUSHING HEAD ATLAS COPCO gently and evenly. Do not force; forcing usually means a burr, misalignment, or wrong seal.  Reassemble retainers/covers per manual, using correct torque and sequence.  Test for leakage and stable flushing at low pressure first, then ramp to operating conditions.
FAQ
FAQ
How do I know this head fits my Cop 1838HD+?
Send us the exact rock drill model suffix and serial range. We match it against your parts book so there’s no guessing—if it fits, we’ll tell you; if there’s a variation, we’ll flag it before any money changes hands.
Is this an original Epiroc part?
It’s an OEM-standard replacement. Dimensional checks, material spec, and surface finish are all controlled to the original blueprint. It bolts in, seals, and takes the same abuse.
What’s a realistic delivery window?
We get orders out the door in 5 working days worldwide. Actual transit time depends on your location and customs, but we provide tracking and a straight estimate, not padded promises.
I keep losing flush pressure after a few shifts. Is that the flushing head?
Often it is. Worn sealing lands inside the head let medium bypass, so pressure at the bit drops. Pull the assembly and run a fingernail across the grooves—if you feel stepping or scoring, replace it. Also check your water filter and lines for grit.
What else should I replace at the same time?
At minimum, new seals. We also recommend a hard look at the adjacent front part (e.g., 3115504200) because a worn mating surface will shorten the life of the new flushing head. Bundle them and do the job once.
Stock
Check Stock & Get a Quote
Drop us your machine model and serial range. We’ll confirm compatibility, price it honestly, and ship within 5 working days.