3115 2938 00 CONNECTION PLATE ATLAS COPCO (3115293800) – OEM-Standard Replacement by 3GEN Export

If your rig is only as reliable as its rock drill, then small interface parts become “make-or-break” components. The 3115 2938 00 CONNECTION PLATE ATLAS COPCO (also searched as 3115293800) is one of those parts: it sits at a junction where alignment, sealing, and stable mounting matter, and it helps the assembly stay rigid under vibration, impact cycles, and high-pressure flushing conditions.

At 3GEN Export, we supply OEM-standard heavy machinery rock drill spare parts and ship worldwide in 5 working days. This page is written to help buyers, technicians, and procurement teams identify the 3115 2938 00 CONNECTION PLATE ATLAS COPCO correctly, understand what it does, and install it with confidence.

Note on part-number formats: the market often lists connection plate references in multiple numeric layouts (spaced vs unspaced). You may see cross-references using 3115 1938 00 / 3115193800 in some drifter parts lists and distributor catalogs for “connection plate” naming conventions.

What the 3115 2938 00 CONNECTION PLATE ATLAS COPCO Does

A connection plate in a rock drill assembly is a precision interface component. In practical terms, the 3115 2938 00 CONNECTION PLATE ATLAS COPCO is designed to:

• Provide a stable, repeatable mounting face between connected components

• Maintain alignment between a central passage (port/bore) and the mating part’s flow path

• Support sealing geometry (surface flatness, contact pattern, and controlled compression if O-rings/gaskets are involved)

• Resist loosening forces created by drilling vibration and cyclic loading

From the product images, the 3115 2938 00 CONNECTION PLATE ATLAS COPCO is a machined plate with a four-bolt pattern and a central raised boss featuring a through-bore, plus an attached or integrated side feature that appears to act as a locating/mounting extension. This combination strongly suggests a part that must hold concentricity and face flatness under real-world site conditions (dust, moisture, shock, temperature changes).

Because this part is at an interface, it helps protect the “more expensive” pieces around it. When the 3115 2938 00 CONNECTION PLATE ATLAS COPCO is worn, deformed, or installed incorrectly, you can see secondary failures: leaks, misalignment wear, abnormal vibration, and fastener fatigue.

Why Fit and Surface Quality Matter for the 3115 2938 00 CONNECTION PLATE ATLAS COPCO

A connection plate is not just “a piece of steel with holes.” On a rock drill, it lives in a harsh environment:

• Repeated percussion vibration

• High-pressure air/water flushing

• Fine abrasive dust

• Rapid temperature swings

• Frequent service interventions

That means the 3115 2938 00 CONNECTION PLATE ATLAS COPCO needs:

• Accurate bolt-hole spacing so fasteners clamp evenly

• A smooth, flat sealing/mating face to prevent micro-leaks

• Cleanly machined edges/chamfers to reduce stress risers

• Stable geometry so alignment is preserved after torqueing

In short: this part is an alignment and sealing “truth surface.” If it’s off, everything downstream pays the price.

Common Use Areas and Compatibility (Models)

Buyers typically need the model link to ensure the right fit. Public parts listings show “connection plate” references commonly associated with Epiroc/Atlas Copco COP-series drifters, including COP 1838 and COP 1840 listings where “connection plate” appears in the parts breakdowns.

Because distributors and catalogs may present the same item under slightly different formatting (e.g., spaced/unspaced numbers), it’s also common to see connection plate references shown as 3115 1938 00 / 3115193800 in vendor listings and part-number cross references.

Practical takeaway for procurement:

• If you are sourcing the 3115 2938 00 CONNECTION PLATE ATLAS COPCO, match by:

  • Part number format used in your manual (spaced/unspaced)

  • Visual geometry (bolt-hole pattern + center boss + side feature)

  • Drifter model family (e.g., COP 1838 / COP 1840 parts lists)

At 3GEN Export, we support verification at the ordering stage by confirming measurable identifiers (bolt spacing, center bore diameter class, face type), so you receive the correct 3115 2938 00 CONNECTION PLATE ATLAS COPCOversion for your equipment.

Material and Manufacturing: What “OEM-Standard” Means Here

To survive in a rock drill environment, an OEM-standard connection plate is typically produced with manufacturing priorities that focus on stability and fatigue resistance:

Machined flatness and contact pattern

The plate face must clamp uniformly. Uneven faces force bolts to “do the sealing,” which causes loosening and leaks over time. A properly produced 3115 2938 00 CONNECTION PLATE ATLAS COPCO helps the assembly seal by geometry, not by overtightening.

Concentricity between the bore and the boss

The central boss and bore appear designed to align fluid/air passages or a locating feature. Concentricity reduces turbulence, wear, and local stress.

Controlled chamfers and deburring

Small burrs can cut seals, create false torque readings, or prevent perfect seating. OEM-standard finishing reduces installation risk.

Durable steel selection

Most connection plates in drifter systems are made from robust steel grades selected for strength and stability under vibration. Even if the part is “static,” vibration loads can fatigue weak materials over time.

What Can Go Wrong When the 3115 2938 00 CONNECTION PLATE ATLAS COPCO Wears

Connection plates don’t always “snap.” They often fail quietly, creating problems that look like something else. Typical symptoms that can point back to the 3115 2938 00 CONNECTION PLATE ATLAS COPCO include:

1) Persistent leaks at the joint

If you repeatedly replace seals but the joint still seeps or fogs, the plate face may be scratched, warped, or uneven.

2) Bolts that won’t stay tight

If bolts loosen even after correct torque, the surface may not be clamping evenly, or the bolt holes may be worn/ovalized.

3) Abnormal vibration or noise

Misalignment at an interface can transmit vibration differently, causing “new” sound signatures.

4) Uneven wear marks

Look for polished areas on only part of the face, this can indicate poor contact pattern.

5) Cracks near bolt holes or edges

Stress concentrates near sharp corners and holes. If the part has been overtightened or installed on contaminated surfaces, micro-cracks can begin.

Replacing the 3115 2938 00 CONNECTION PLATE ATLAS COPCO at the right time protects the more expensive components it supports.

Installation Guidance for the 3115 2938 00 CONNECTION PLATE ATLAS COPCO

Below is a field-practical installation approach. Always prioritize your OEM service manual torque specs and safety procedures for your exact rig.

Step 1: Clean the mating surfaces completely

• Remove old sealant residue, scale, and dust

• Do not trap grit between faces (it will create “false flatness”)

• Use lint-free wipes and correct cleaners for your shop standard

A clean seat is the foundation for a stable 3115 2938 00 CONNECTION PLATE ATLAS COPCO installation.

Step 2: Inspect the plate and joint

Check:

• Face scratches or dents

• Burrs around bolt holes

• Damage on the central boss area

• Evidence of uneven clamping (shiny patches, fretting marks)

If the old plate shows face damage, replacing it with an OEM-standard 3115 2938 00 CONNECTION PLATE ATLAS COPCO is often the most cost-effective fix compared with repeated sealing attempts.

Step 3: Replace seals if the joint uses them

If your assembly uses O-rings or gaskets, install new ones. Reusing compressed seals increases leak probability and can mislead troubleshooting.

Step 4: Align and seat without forcing

• Confirm the plate seats naturally

• If you must “pull it in” with bolts, alignment may be off or debris may be present

• Hand-start bolts to prevent cross-threading

Step 5: Torque gradually in a cross pattern

• Tighten in stages

• Use a star/cross pattern across the four-bolt layout

• Avoid final torqueing one bolt at a time to full value

This ensures uniform clamp load on the 3115 2938 00 CONNECTION PLATE ATLAS COPCO face.

Step 6: Post-install checks

• Inspect for visible gaps

• Run a short functional test (per your site procedure)

• Re-check for leaks and fastener stability

Practical Technical Details (Field-Useful, Non-Dimensional)

Because Atlas Copco/Epiroc assemblies can vary by revision, it’s common for procurement teams to prefer verified measurements over assumed dimensions. That said, the 3115 2938 00 CONNECTION PLATE ATLAS COPCO in the images clearly shows these functional characteristics:

• Square/rectangular plate body with four mounting holes

• Raised central boss with a through-bore (for passage or locating function)

• A side extension feature (likely for mounting, alignment, or connection routing)

• Precision-machined faces intended for stable clamping

If you want, 3GEN Export can confirm the right variant using your bolt spacing, center bore requirement, and the drifter family.

Weight of the 3115 2938 00 CONNECTION PLATE ATLAS COPCO (KG)

Weight can vary by revision and by whether the part is supplied as a single machined piece or includes an attached side feature. Based on typical steel connection plates of similar geometry, the shipping weight is commonly in the ~0.8 to 1.8 kg range for this size class.

For quoting and logistics, we recommend using:

• Estimated weight: ~1.2 kg (planning value)

• Final confirmed weight: provided by 3GEN Export at order confirmation (based on stocked batch and packaging)

This approach prevents surprises on courier pricing while keeping your BOM data consistent.

Why Buyers Choose 3GEN Export for the 3115 2938 00 CONNECTION PLATE ATLAS COPCO

When you’re sourcing rock drill parts, the real cost isn’t only the part, it’s downtime, rework, and shipment delays. 3GEN Export focuses on outcomes:

• OEM-standard manufacturing expectations (fit, finish, reliability)

• Documentation-friendly supply for international trade

• Global delivery in 5 working days

• Consistent packaging suitable for export handling

If your team needs a dependable source for the 3115 2938 00 CONNECTION PLATE ATLAS COPCO, our job is to make the part arrive correctly identified, properly protected, and ready to install.

Frequently Used Search Formats for This Part

To help your listing show up across different buyer search habits, include both formats:

• 3115 2938 00 CONNECTION PLATE ATLAS COPCO

• 3115293800 CONNECTION PLATE ATLAS COPCO

• Also commonly cross-referenced in market listings as 3115 1938 00 / 3115193800 for “connection plate” naming in some catalogs and parts lists

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.