CompAir equipment and spare parts

We supply CompAir lubricated screw compressors L and L-RS, oil-free packages D and Ultima, portable units C and genuine spares by serial number. Configuration, options and shipping agreed.

L-Series lubricated rotary screw compressors

2 to 290 kW with working pressures from 5 to 13 bar. The range includes compact L02–L06 units, mid-range L07–L22 and L23–L45 models, plus heavy-duty L55–L290 packages. Provide the nameplate to select filters, valves or air ends.

Compact L02–L06 (2.2–7.5 kW): automatic belt tension, noise from 61 dB(A).
L07–L22 series (7.5–22 kW): direct drive and Delcos Pro microprocessor.
L23–L45 models (22–45 kW): gearless airend operation up to 3000 rpm.
Heavy-duty L55–L290 packages: IE3/IE4 motors and integrated heat recovery.

L-RS regulated speed rotary screw compressors

CompAir L-RS models feature variable speed drive technology that precisely matches compressed air delivery to real-time plant demand. Regulating motor speed across 20% to 100% capacity eliminates unloader idling cycles and reduces compressor energy consumption by up to 35%.

Wide operating turndown ratio from 20% to 100% plant air demand.
Smooth soft-start capability preventing current peaks on the supply grid.
Precise system pressure control maintained within tight ±0.1 bar tolerance.
Original inverter drives and line filters sourced by machine serial number.

Four-Core two-stage rotary screw compressors

The Four-Core series integrates two independent two-stage airends within a single compact package rated at 160–250 kW. Two-stage compression reduces pressure ratios across each rotor pair, minimizing internal slippage and yielding up to 8% higher energy efficiency over single-stage units.

Two high-efficiency two-stage airends integrated on a common drivetrain.
Power ratings from 160 to 250 kW suited for continuous industrial duty.
Reduced thermal stress across rotors extending bearing and seal life.
Genuine Four-Core seal kits, intake valves and rebuild parts supplied.

D-Series two-stage oil-free compressors

CompAir D-Series oil-free compressors (models D37 to D315, power ratings 37–315 kW) supply 100% clean air certified to ISO 8573-1 Class 0. Rotor surfaces are protected by high-temperature Ultracoat treatment that withstands temperatures up to 200 °C without peeling or corrosion.

Certified ISO 8573-1 Class 0 oil-free air for contamination-free processes.
Rotors treated with proprietary corrosion-resistant Ultracoat layer.
Air-cooled and water-cooled variants engineered for process industries.
Dry airend service kits, oil-stop labyrinth seals and sensors provided.

Ultima next-generation oil-free compressors

The revolutionary Ultima series (75–160 kW) utilizes proprietary U-Drive technology: low-pressure and high-pressure compression stages are driven by separate variable-speed permanent magnet synchronous motors. The design eliminates traditional mechanical gearboxes and shrinks footprint by 37%.

U-Drive propulsion: separate high-speed PM motors for both stages.
Digital gearbox architecture eliminating gear wear and mechanical loss.
Closed-loop water cooling capturing up to 98% usable waste heat energy.
Ultra-compact enclosure reducing required plant floor space by up to 37%.

DH-Series water-injected oil-free compressors

CompAir DH-Series units (DH15–DH110, 15–110 kW) inject purified water to lubricate, seal and cool the rotor assembly in a single compression stage. Operating near true isothermal compression at temperatures below 60 °C guarantees 100% oil-free purity and remarkable mechanical reliability.

Single-stage compression mechanism sealed with purified demineralized water.
Low operating temperatures under 60 °C avoiding thermal stress or deposits.
Integrated reverse osmosis water purification system for auto-top up.
Reverse osmosis membranes, injection nozzles and water filters available.

C-Series portable diesel air compressors

0 m³/min at pressures between 7 and 24 bar. Engineered for harsh construction and drilling environments, units are powered by robust Honda, Kubota, Yanmar or Cummins engines housed inside tough weather hoods.

Compact mobile C10–C14 units powered by Honda GX petrol engines.
C20–C30 series (2.0–3.0 m³/min at 7 bar) equipped with Kubota D1105 diesels.
Mid-range C35–C50 models (3.5–5.0 m³/min) with water-cooled Yanmar engines.
Heavy-duty C200TS–C270TS packages (up to 27 m³/min) with Cummins turbo diesels.

Delcos microprocessors and iConn telemetry

Delcos controllers (Delcos Pro, Delcos XL, Delcos 3100) continuously manage operating pressure, temperatures, power variables and maintenance intervals. The integrated CompAir iConn telemetry suite provides real-time cloud data transmission to predict faults and track equipment status.

Delcos Pro: backlit multilingual display with service and alarm logging.
Delcos XL: color touchscreen displaying trending curves and power metrics.
SmartAir Master sequencer coordinating compressed air networks up to 12 units.
iConn cloud telemetry: proactive condition alerts and remote diagnostics.

Genuine filters, separators and FluidForce oils

For routine servicing of CompAir compressors, we supply original air filter cartridges, spin-on oil filters, air-oil separator elements and proprietary FluidForce lubricants (CS-300, CS-400, CS-600, FoodGrade). Regular replacement of consumables protects screw rotors and maintains optimum cooling.

Air intake filter elements with filtration down to 3 microns (including L132 p/n 100013298).
High-capacity oil filters and separator elements with oil carry-over below 3 mg/m³.
FluidForce specialized lubricants formulated for extended operating life up to 8000 h.
Factory preventive maintenance kits for 2000, 4000 and 8000 running hours.

Dryers, line filters and air treatment systems

CompAir downstream air treatment systems include Series F refrigerant dryers, Series A heatless and heated desiccant dryers (pressure dew points down to −40 °C and −70 °C), cyclone water separators, CF series coalescing line filters and CS oil-water condensate separators for compliant disposal.

Series F refrigerant dryers with flow capacities from 0.4 to 180 m³/min.
Series A_TX heatless adsorption dryers delivering dew points down to −70 °C.
Coalescing inline filters CF removing particulates, aerosol droplets and oil vapors.
Condensate oil-water separators CS ensuring eco-compliant wastewater discharge.

Reading a compressor nameplate

g. 5 or D75-10), unique machine serial number and year of manufacture. For accurate selection of filter elements, rebuild kits or solenoid valves, the serial number is the key identifier. Photograph the label without glare.

If the main enclosure plate is scratched or painted over, check the commissioning manual or maintenance log. The rotary screw airend and electric drive motor also carry separate factory nameplates. Images of these component tags help our team verify the machine configuration precisely.

Airend, gearbox or complete package

When an airend malfunctions, evaluate both options: supplying a replacement rotary screw element or replacing the complete compressor package. For an airend quote, provide the part number from its casting and total logged operating hours. For valves and sensors, catalog numbers are sufficient.

The decision on rebuilding or replacement remains with your engineering team or certified service contractor. We quote genuine airend modules, intake regulators and valves alongside complete packaged units so you can balance lead time and budget.

Oil-free compressors D, Ultima and DH

For oil-free compressors in the D, Ultima and DH families, preventing contamination is essential for pharmaceutical, food or semiconductor production. When inquiring for consumables or repair parts, specify required air purity class and certification standards.

For water-injected DH machines, replace reverse osmosis cartridges and injection nozzles at designated intervals. For Ultima compressors, provide an operational diagnostic log from the Delcos XL controller to evaluate the performance of both independent U-Drive motors.

C-Series portable diesel units

When requesting components for mobile C10–C270TS packages, specify the exact diesel or petrol engine brand (Kubota, Yanmar, Cummins or Honda). Include the chassis serial number, towbar coupling configuration and preset operating discharge pressure.

We supply air treatment and compressor consumables (spin-on oil separators, air filter elements) as well as engine service kits: fuel pre-filters, water separators, alternator belts and thermostats for harsh outdoor duty.

Delcos controllers and iConn telemetry

For Delcos Pro, Delcos XL or Delcos 3100 microprocessors, provide the part number on the rear casing and installed firmware revision. Before swapping a controller module, save a parameter backup and terminal wiring diagram.

To connect installations to the iConn remote cloud analytics portal or integrate units with SmartAir Master multi-compressor sequencers, specify network communication interfaces (RS-485, Modbus RTU or Ethernet) and the total machine count.

What to provide for selection

The minimum required information includes clear nameplate photos, compressor serial number, required parts list and delivery destination. For filters and separators, photos of existing cartridges showing legible factory printing are very helpful.

When submitting inquiries covering several compressors across your facility, group items by compressor serial number. This streamlines factory verification and ensures every seal, valve and filter matches your machinery.

Equipment for a new compressor room

For new capital installations, begin with system requirements: total required compressed air delivery (m³/min or cfm), target operating pressure, pressure dew point and required ISO 8573-1 air purity class.

State electrical network specifications, spatial limitations within the plant and interest in energy heat recovery systems. If an engineering design specification is already drafted, attach it to your inquiry.

We propose optimal configurations from CompAir current industrial portfolio (lubricated L-Series or oil-free D/Ultima) complete with matching dryers and receiver vessels. Obsolete legacy models are never proposed for new turnkey systems.

Limitations: this page does not confirm official CompAir partner or dealer status, stock availability, fixed price or lead time, or part interchangeability based purely on series name. Terms are verified for each individual project and documented in the official quotation.