Home / Montabert / Nitrogen Diaphragm 86634003 Montabert HC109 HC120 HC150 Ingersoll-Rand 2686634003 membrane
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Nitrogen Diaphragm 86634003 Montabert HC109 HC120 HC150 Ingersoll-Rand 2686634003 membrane

Nitrogen Diaphragm That Keeps Your Drifter Running

Part Number: 86634003 / 2686634003

This nitrogen diaphragm goes straight into Montabert HC109, HC120, HC150 drifters and matching Ingersoll-Rand models. It’s a wear part you’ll eventually need to swap. The elastomer compound we use is spec’d to handle the constant flexing and high-frequency percussion these rigs dish out. If your current diaphragm is leaking charge or showing surface cracks, this drop-in replacement gets you back to full impact energy without messing around with modifications. Send your machine model so we can double-check the fit.

  • New genuine Ingersoll-Rand diaphragm - 86634003
  • Also crosses to Atlas Copco / Epiroc 2686634003
Get a Quote Back to Montabert
Nitrogen Diaphragm 86634003 Montabert HC109 HC120 HC150 Ingersoll-Rand 2686634003 membrane
#215
Highlights
Key Advantages
  • Drops right into Montabert HC109, HC120, HC150 drifter models
  • Same part as Ingersoll-Rand 86634003 and Epiroc 2686634003
  • Elastomer holds up against repetitive flexing and surface fatigue
  • Keeps nitrogen charge where it belongs, so impact power stays consistent
  • Swap it during routine service to avoid unplanned downtime on site
Use Cases
Applications
  • Montabert HC109 hydraulic drifter
  • Montabert HC120 hydraulic drifter
  • Montabert HC150 hydraulic drifter
  • Ingersoll-Rand rigs that call for 2686634003 membrane
  • Surface and underground rock drilling in hard rock conditions
Specs
Technical Specifications
Part Number86634003
Cross Reference (Epiroc/Atlas Copco)2686634003
MaterialHigh-grade elastomer compound
FunctionGas separator / energy transfer membrane
Kit ContentMembrane (confirm if seals and o-rings are included)
Details
Detailed Description

The Montabert Shaft 86220209 is a precision component designed for Montabert drilling equipment. Manufactured from high-quality materials, it ensures reliable performance, accurate fitment, and long service life under heavy-duty conditions. Share your machine model to confirm compatibility and receive a quotation.

  • New Genuine Ingersoll-Rand Diaphragm - 86634003
  • Atlas Copco / Epiroc 2686634003
Ref No.Part No.Description
1086374030LP BODY
2086385119HP BODY
3086264678HELICOIL THREAD
4086374055COVER
5086376191O RING
6086634003DIAPHRAGM KIT
7086241403BS RING
8086265048INFLATING SCREW
9086223419PIN
10086265071O RING
11086326493O RING
12086570447TIGHT SEAL
13086313228SOCKET HEAD SCREW
14086323672CYLINDER
15086333697DISTRIBUTOR
16086333713THRUST PISTON CYL. E
17086578580STRIKE PISTON
18086324738COVER
21086250867SOCKET HEAD SCREW
22086333267PLUG
23086281979O RING
24086223914DISTRIBUTION COVER
25086220944VALVE
26086220951PUSH ROD
27086220969LINING


FAQ
FAQ
How do I know if this diaphragm fits my drifter?
Pull up your machine’s parts book or look on the old diaphragm itself. In most cases it slots into Montabert HC109, HC120, and HC150. For Ingersoll-Rand, cross-check with 2686634003. Still unsure? Send us your model and we’ll confirm before you order.
Is this a genuine Ingersoll-Rand part?
Yes. It’s a new genuine Ingersoll-Rand diaphragm carrying number 86634003. The same unit is supplied under Atlas Copco/Epiroc as 2686634003.
What’s the typical lead time?
Depends on current stock levels. Most orders ship out within 3–5 business days from confirmation. If you’re in a hurry, ask about express shipping when you request a quote.
How often should I replace the nitrogen diaphragm?
Check it every 500–1000 impact hours, or whenever you’re doing a full drifter overhaul. If you spot pressure loss, cracking, or any visible damage, swap it right away—don’t wait.
Can I buy in bulk, or get a complete diaphragm kit?
Bulk pricing is on the table if your consumption is steady. We can also supply full kits with seals and o-rings. Let us know your annual usage and we’ll put together a discounted quote.
What kind of warranty or quality check do you provide?
All parts come with the manufacturer’s certification. If a part arrives defective, we replace it under our standard warranty. Test reports can be sent on request.
Stock
Check Stock & Get a Quote
Send us your machine model and quantity—expect pricing within 24 hours.
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