Atlas Copco 1622855795=1622855710 Filter Element: Pre-Filtration for Oil-Injected Screw Compressors

Product Overview

Role in the Air System

The 1622855795 is a pre-filter mat, not a traditional cylindrical filter cartridge. It sits at the compressor cabinet intake grid and acts as the first line of defense against ambient contaminants. Before incoming air reaches the primary air filter, the 1622855795 catches large particles — dust, lint, fibers, and airborne debris — that would otherwise load up the main filter prematurely.

Atlas Copco lists this part under two interchangeable numbers: 1622855795 and 1622855710. Both refer to the same filter element with identical dimensions, materials, and performance. The dual numbering reflects internal catalog updates within the Atlas Copco parts system and causes no compatibility concern during procurement.

Material and Construction

The filter media uses high-density polyester fiber with a generous dust-holding capacity. This material choice balances two competing demands. The fiber structure must be dense enough to trap fine particulates, yet open enough to avoid creating intake restriction that forces the compressor to work harder. Atlas Copco engineers selected the polyester grade specifically to optimize this trade-off for the GA and G series airflow requirements.

The mat features a precision-cut border engineered to seat flush against the intake grid frame. This prevents edge-bypass leakage, where unfiltered air slips around the filter perimeter rather than passing through the media. A poorly fitting generic mat can lose 30% or more of its filtration effectiveness through edge gaps alone.

Compatible Compressor Series

The 1622855795 pre-filter fits a range of Atlas Copco oil-injected rotary screw compressors:

• GA Series: Fixed-speed GA models, GA VSD variable-speed units, and GA FLX dual-speed machines across multiple power ratings
• G Series: G fixed-speed and G VSD rotary screw compressors for general industrial air supply

If your compressor uses an external intake grid with a flat rectangular filter mat rather than a cylindrical canister, the 1622855795 is the likely match. Always verify with your machine serial number through the Atlas Copco parts portal for definitive confirmation.

Technical Specifications

Physical Parameters

The filter element dimensions follow factory-standard tolerances to guarantee a zero-bypass fit:

Filtration Performance

As a pre-filter, the 1622855795 targets larger airborne particulates — dust, lint, textile fibers, wood particles, and general workshop debris. This coarse filtration stage removes the bulk contaminants that would rapidly clog the primary air filter element. By handling the heavy-lifting phase of air cleaning, the 1622855795 extends the service life of the more expensive secondary filter downstream.

The polyester fiber media achieves this interception without creating high airflow resistance. A clogged or overly dense pre-filter forces the compressor to work against intake vacuum, which increases energy consumption and can trigger high-temperature alarms. Factory-spec polyester maintains the designed pressure drop across the intake path.

Not a Washable Element

This filter mat is not designed for cleaning and reuse. Attempts to wash, blow out, or shake clean the fiber media damage the microscopic fiber structure and reduce filtration efficiency. Once the mat shows visible dust saturation or the compressor controller indicates elevated intake restriction, replacement is the only correct service action.

Why Choose a Genuine Atlas Copco 1622855795

Material Integrity Matters

Generic replacement mats often use lower-grade polyester or mixed synthetic fibers with inconsistent density. These materials may appear similar to the naked eye and carry the same nominal dimensions. Performance differences show up later: premature clogging, fiber shedding into the cabinet interior, or edge deformation after repeated thermal cycling from the compressor’s operating heat.

Genuine Atlas Copco filter mats use a proprietary polyester formulation tested across the full range of operating temperatures and humidity conditions that oil-injected screw compressors encounter in the field. The fiber binding resists degradation from exposure to compressor waste heat and ambient moisture.

Edge-Seal Precision

The cut tolerance on a genuine 1622855795 ensures the mat’s border compresses evenly against the intake grid frame. An oversized mat buckles and creates air gaps. An undersized mat shifts within the frame and exposes raw intake edges. Both failure modes admit unfiltered air directly into the compressor cabinet, bypassing the entire filtration chain.

Downstream Protection Chain

Saving on a pre-filter mat may increase costs elsewhere. A poorly performing 1622855795 equivalent allows more dust to reach the primary air filter, shortening its replacement interval. It also deposits fine particles on internal components — the compressor airend, oil cooler fins, and electrical connections. The cumulative impact across these systems often exceeds the price difference between genuine and generic parts several times over.

Maintenance Guidelines

Inspection Frequency

Standard-service environments should inspect the 1622855795 during every scheduled maintenance interval, typically every 2,000 hours of operation. High-dust environments — woodworking shops, textile mills, cement plants, foundries — require weekly visual checks. A heavily loaded mat in these conditions may need replacement well before the standard interval.

Replacement Triggers

Replace the filter mat when any of these conditions appear:

• Visible heavy dust accumulation that covers more than 70% of the mat surface
• The compressor controller registers an intake pressure drop alarm
• The mat shows physical damage — tears, edge fraying, or delamination of fiber layers
• Scheduled service interval reaches 4,000 operating hours

Installation Note

Installing the 1622855795 requires no special tools. Open the compressor cabinet intake panel, remove the old mat (gloves recommended), seat the new mat flush against the grid frame, and secure the retaining clips or frame. Confirm the mat lies flat with no visible gaps at any edge before closing the panel and restarting the compressor.

Frequently Asked Questions

Are 1622855795 and 1622855710 the same part?

Yes. Atlas Copco uses these two numbers for the identical filter mat. The dimensions, material, and performance specifications are exactly the same. You can order either number and receive the same genuine part.

How does this pre-filter differ from the main air filter inside the compressor?

The 1622855795 handles coarse pre-filtration at the cabinet intake. It catches large visible particles before they enter the enclosure. The main air filter (typically a cylindrical cartridge) performs fine filtration downstream, removing smaller particles that the pre-filter passes through. Together they form a two-stage intake cleaning system.

What happens if the 1622855795 is not replaced on schedule?

A clogged pre-filter creates intake vacuum. The compressor must work harder to draw air, increasing energy consumption and operating temperature. The main air filter also loads up faster as it receives unfiltered or poorly filtered air. Extended neglect can trigger high-temperature shutdowns or cause dust ingress that damages the compressor element.

Can this filter mat be cleaned and reused?

No. The polyester fiber structure is not designed for cleaning. Washing, compressed-air blowing, or mechanical shaking damages the fibers and reduces filtration performance below factory specifications. Replacement is the only correct maintenance action.

How do I confirm the 1622855795 fits my compressor model?

Check your machine serial number through the Atlas Copco online parts portal. The system cross-references your serial number against the compatible parts catalog. Alternatively, consult your compressor’s service manual, which lists the correct filter part numbers for each maintenance interval.

What is the recommended replacement interval in normal conditions?

Every 2,000 to 4,000 operating hours under standard industrial conditions. Environments with high airborne dust — woodworking, textiles, cement production — may require replacement at 1,000 hours or less, determined by visual inspection and intake pressure readings.

If you need other Atlas Copco air compressor filters, we provide more models in the table below or you can submit your requirements to us directly.