About the KX-AOS15 air-oil separator

Kenrax manufactures the KX-AOS15 — an OEM-grade air-oil separator built for Kenrax screw compressors. This element is made to the original specification so it installs exactly where the OEM part did, with the same media grade, dimensions, and sealing.

In service, this air-oil separator continuously recover oil mist from the compressed air stream. Keeping it changed on the OEM interval protects the investment in the machine far beyond the cost of the element itself.

What the KX-AOS15 does in your Kenrax compressor

The air-oil separator sits between the air end and the point of use. Compressed air leaves the rotors carrying a fine oil mist; the separator's coalescing media collects those droplets and returns the oil to the sump while letting the air pass. When the separator ages, coalescing efficiency decays: residual oil carryover climbs, oil consumption rises, and downstream equipment — dryers, filters, valves, tools, and the product itself — starts to collect the oil the separator should have recovered.

The KX-AOS15 is a scheduled-service consumable, not a repair item. Fitted as part of the Kenrax machine's standard maintenance, it keeps the compressor inside its design operating band between services.

When to replace this element

• Typical OEM interval: 2000–4000 operating hours, or per the machine manual.

• Quality-sensitive plants (food, pharma, electronics) should align replacement with the air-quality audit calendar.

• If separator pressure drop climbs, replace early regardless of hours.

Signs it needs replacement

Replace on any of the above regardless of hour count. For this part, keeping a fresh element in stock before the interval arrives is the single cheapest insurance policy on the machine.

• Oil consumption rising between services with no other explanation.
• Oil film in the receiver drain, piping, or downstream filter elements.
• A rising differential pressure across the separator on the controller.
• The machine running hotter as the separator adds restriction to the discharge path.

Direct-fit compatibility for Kenrax

The KX-AOS15 is cross-referenced for these Kenrax OEM part numbers and models:

• Chinese Compressors

Fitting and verification

• Confirm the element matches the OEM number, dimensions, and sealing arrangement of your old one.

• Check the scavenge/return line and orifice are clear — a blocked scavenge imitates a failing separator.

• Seat the element and torque the housing cover to spec; a poor seal defeats the new element.

• After fitting, verify oil carryover visually and the separator pressure drop reading on restart.

Ordering the KX-AOS15

For the KX-AOS15, order quantities and dispatch times are confirmed on WhatsApp — send the OEM number from your current element and we verify the match before shipping.