3115212000, 3115 2120 00 FLUSHING HEAD ATLAS COPCO

If your drifter is the “heart” of a rock drill, the flushing system is its bloodstream. The 3115212000 / 3115 2120 00 flushing head is the precision-machined interface that helps route flushing media (typically water, air, or water-mist) through the rotation/drifter assembly so cuttings are carried out of the hole, the bit stays cooler, and penetration stays consistent under load.

At 3GEN Export, we supply this part as an OEM-quality solution for customers who need reliable fit, stable performance, and fast turnaround. We ship worldwide in 5 working days, so your rig doesn’t sit still while a small component holds up a big job.

What a flushing head actually does (and why it matters)

In hard rock drilling, “flushing” is not a bonus feature—it’s the difference between drilling and grinding. When the bit strikes rock, it generates heat and creates crushed material (cuttings). If those cuttings stay in the hole, several problems show up quickly:

• Bit buttons overheat and wear early

• The bit starts regrinding the same material, slowing penetration

• Hole quality drops (deviation, rough walls, poor collaring)

• Vibration increases, accelerating wear on bearings, seals, and couplings

The flushing head helps manage flow where it counts: through the tool string/bit area and out of the hole. Because it sits in a high-stress zone—exposed to pressure changes, abrasive slurry, and vibration—its machining quality and surface integrity matter. A small mismatch in tolerances can turn into leakage, pressure loss, or premature seal damage.

Product identification and search visibility

Customers may search this part in multiple ways. For best match across purchasing systems, use both formats:

• 3115212000 flushing head

• 3115 2120 00 flushing head

• 3115-2120-00 flushing head

Keeping both “spaced” and “continuous” versions on your product page helps the part show up when buyers paste from manuals, parts lists, or ERP systems.

Key specifications for 3115212000 / 3115 2120 00

Based on published supplier listings, this flushing head is commonly described with the following physical specs:

• Approx. weight: 4,300 g (about 4.3 kg)

• Diameter: 100 mm

• Length: 110 mm

These values are useful for shipping planning, inventory bin sizing, and confirming you’re matching the correct geometry when multiple flushing head variants exist in the same family. As always, final verification should be done against your machine serial number and parts manual.

Compatibility: which Atlas Copco/Epiroc drifters commonly list this part

For many buyers, the most important question is “which drifter does it fit?” Supplier compatibility lists commonly associate 3115212000 / 3115 2120 00 flushing head with several COP-series drifters, including:

• COP 1238K

• COP 1238HD

• COP 1638K

• COP 1638HD

• COP 1838K

• COP 1838HD

Important note for your product page: in real-world maintenance, exact fit can vary by revision level, configuration, and serial range. The safest purchasing workflow is:

1. Confirm drifter model (e.g., COP 1638HD)

2. Confirm the part number in the parts book for that serial range

3. Match the part number exactly (3115212000 / 3115 2120 00)

Design features you can see in the product photos (and what they tell you)

From the images you provided, this flushing head presents as a compact, heavy-duty cylindrical component with:

• A central bore for alignment/flow routing

• Precision faces for sealing and mating

• External grooves/steps likely intended for sealing, retention, or controlled flow paths

• A lateral port/opening (typical for routing media or equalizing pressure in the assembly)

In practice, those details matter because a flushing head is often the meeting point of multiple requirements:

• Maintain sealing under vibration

• Resist abrasion from slurry

• Maintain flow geometry so flushing efficiency stays stable

• Avoid micro-leaks that reduce pressure and drilling speed

Even when a part looks “simple,” the real value is in the tolerances and surface finish that keep seals alive and flow consistent.

Performance benefits: what you gain by keeping the flushing head in spec

When the 3115212000 / 3115 2120 00 flushing head is in good condition—and matched correctly to the drifter—you typically see improvements in the things that actually affect cost per meter:

More consistent penetration

A stable flush removes cuttings before they recirculate. That reduces regrinding and helps the bit stay engaged with fresh rock.

Longer consumable life

Better flushing usually means lower bit temperature and less abrasive recirculation. That can translate into longer bit/button life and fewer premature replacements.

Reduced unplanned downtime

A worn or incorrectly fitted flushing head can create leakage, pressure loss, and seal damage—issues that often escalate into bigger teardown work. Keeping the correct flushing head in place helps protect adjacent components.

Common wear signs and failure symptoms

If your drilling team reports any of the following, the flushing head (and its seal stack) should be inspected:

• Loss of flushing efficiency (cuttings not clearing, hole packing)

• Drilling becomes “hotter” or bits show heat tinting prematurely

• Visible leakage around the head interface

• Unusual vibration or noise when flushing is engaged

• Seal failures that repeat more often than expected

In many cases, the flushing head itself isn’t the only problem—contaminated water, blocked filters, or incorrect pressure settings can trigger the same symptoms. But because the flushing head sits in the flow and sealing zone, it’s a high-value checkpoint during service.

Installation guidance (practical, field-friendly)

A flushing head replacement is usually straightforward for an experienced technician, but small mistakes can shorten service life quickly. Best practice steps:

1) Cleanliness first

Before installing the 3115212000 / 3115 2120 00 flushing head, clean the mating surfaces and internal channels. Any grit left behind can score surfaces and damage seals on first run.

2) Inspect the mating faces and bores

Look for:

• Scoring lines

• Pitting or corrosion

• Burrs around ports

• Out-of-round wear

If the mating component is damaged, a new flushing head won’t fix the leak—both sides must seal correctly.

3) Replace seals as a set (not “one ring”)

Flushing heads often work with O-rings, backup rings, or seal packs. Mixing old and new seals can create uneven compression and leakage.

4) Use correct torque and assembly order

Over-tightening can distort components; under-tightening can allow movement and micro-leaks. Follow the drifter’s service manual torque specs for your configuration.

Maintenance tips that protect the flushing head long-term

A high percentage of flushing-related failures come from system conditions, not the metal part itself. To extend the life of the 3115212000 / 3115 2120 00 flushing head:

• Use filtration appropriate for your water source

• Keep flushing media clean (avoid sand-laden water where possible)

• Check for blocked lines and partial restrictions (pressure spikes damage seals)

• Confirm correct flushing pressure and flow for the bit/hole diameter

• Monitor hose condition—collapsed hoses can cause starvation, spikes, or turbulence

These steps reduce abrasive exposure and stabilize pressure, which is exactly what seal interfaces need to last.

Why buyers choose 3GEN Export for this part

When you’re sourcing rock drill spares, the real cost is not the part—it’s the downtime, the rework, and the uncertainty. 3GEN Export focuses on making procurement predictable:

• OEM-quality supply approach (fit and function focused)

• Fast worldwide logistics: delivery in 5 working days

• Export-ready packing and documentation support

• Responsive support for cross-checking part numbers and applications

If you’re managing multiple rigs or operating in remote sites, speed and correctness matter more than anything.

Quick checklist before you place an order

Use this checklist on your product page (it reduces wrong orders and returns):

• Confirm part number: 3115212000 / 3115 2120 00

• Confirm drifter model and serial range (parts book verification)

• Confirm you need the flushing head, not a similar “close-number” revision

• Consider ordering seal kits at the same time (recommended for service)

Manufactured in Turkey, these products are made using the latest technologies and built to meet the highest international standards. Each machine is a high-quality copy of the original, ensuring durability, precision, and performance that you can rely on for modern construction and metalworking projects.