Atlas Copco XAHS 400 PACE Portable Air Compressor

The Atlas Copco XAHS 400 PACE are silenced, single-stage, oil-injected screw compressors,powered by liquid-cooled, four-cylinder Cummins diesel engine. The unit consist of a high efficient compressor element, diesel engine, cooling, air/oil separation and control systems – all enclosed within a sound dampened power coated steel enclosure.

Special attention has been given to the overall product quality, user friendliness, ease of serviceability, and economical operation to ensure best in class cost of ownership.

PACE models enable multiple pressure and flow settings, ensuring you match air flow and pressure to your application needs.

The Atlas Copco XAHS 400 PACE is a high-performance portable diesel air compressor designed for applications that require both substantial airflow and flexible working pressure.

Its key feature is PACE™ — Pressure Adjusted true Cognitive Electronics. Instead of being limited to one fixed pressure setting, the compressor can operate at several pressure and flow combinations. This allows one machine to cover applications that might otherwise require several fixed-pressure compressors. Atlas Copco’s official documentation describes PACE as an electronic regulation system controlled through the compressor’s digital controller.

 key advantages:

• Flexibility and Ease of Use: PACE technology enabled the quick and easy adjustment of the compressor’s pressure and airflow to meet the demands of each task. This flexibility enhanced the team’s efficiency on-site.
• High Performance and Reliability: The variable pressure settings allowed fiber cables to be blown safely over both short and long distances. Despite ever-changing conditions, the cabling operations proceeded seamlessly and without interruption.
• Faster Project Completion: The adjustable pressure and airflow accelerated the cable installation process, allowing the project to be completed within the projected timeframe. This speed not only increased efficiency but also resulted in cost savings.

Atlas Copco XAHS 400 PACE Specifications

Parameter	XAHS 400 PACE
Product Type	Portable Diesel Air Compressor
Compressor Type	Single-stage, oil-injected screw
Regulation Technology	PACE™
Normal Effective Working Pressure	5–12 bar
Pressure Range	Approx. 72–175 psi
Maximum Free Air Delivery	410 cfm
Maximum Free Air Delivery	12 m³/min
Maximum FAD	191 L/s
Engine	Cummins diesel
Engine Configuration	4-cylinder, liquid-cooled
Engine Model	Cummins QSB3.9-C130-31
Rated Engine Power	Approx. 95 kW
Compressor Oil Capacity	Approx. 25 L
Fuel Tank Capacity	Approx. 17.5 L
Air Receiver	Approx. 42 L
Maximum Ambient Temperature	Up to 50°C at sea level
Compressor Type	Rotary Screw
Main Applications	Construction, blasting, shotcrete, drilling and cable blowing

Atlas Copco’s official product literature confirms the XAHS 400 PACE pressure/FAD combinations and PACE operating concept. Detailed engine and fluid specifications are supported by the associated technical reference data.

Pressure and Airflow Performance

One of the most important characteristics of the XAHS 400 PACE is that airflow changes according to the selected working pressure.

The published Atlas Copco performance data gives the following operating points:

Working Pressure	Working Pressure	Free Air Delivery	Approx. Flow
5–7 bar	72–100 psi	410 cfm	12 m³/min
8.6 bar	125 psi	390 cfm	11 m³/min
10.3 bar	150 psi	375 cfm	10.6 m³/min
12 bar	175 psi	360 cfm	10 m³/min

The Atlas Copco brochure lists 410 cfm at 5–7 bar, 390 cfm at 8.6 bar, 375 cfm at 10.3 bar and 360 cfm at 12 bar.

This pressure-flow relationship is particularly useful for contractors who need one compressor for several different pneumatic applications.

Compressor System

The XAHS 400 PACE uses a single-stage oil-injected rotary screw compressor.

The compressor package includes:

• Screw compressor element
• Diesel engine
• Air/oil separation system
• Cooling system
• Air receiver
• Electronic control system
• Pressure regulation system
• Safety systems

The compressor and engine are integrated into a sound-dampened steel enclosure designed for field operation. Atlas Copco’s product reference specifically describes the package as a single-stage, oil-injected screw compressor powered by a liquid-cooled four-cylinder Cummins diesel engine.

Portable and Sound-Attenuated Design

The XAHS 400 PACE is designed as a mobile compressor for use at construction and industrial sites.

The compressor package incorporates a sound-dampened steel enclosure, protecting the major components while helping control operating noise.

The design also focuses on:

• Easy service access
• Protection of internal components
• Field mobility
• Robust construction
• Efficient cooling
• Safe operation
• Reduced maintenance downtime

Applications

The XAHS 400 PACE can support a wide range of compressed-air applications.

Construction

Suitable for pneumatic construction tools, site utilities and general compressed-air requirements.

Abrasive Blasting

The adjustable pressure range makes the compressor suitable for blasting applications where both pressure and airflow must be matched to the blasting equipment.

Shotcrete

The XAHS 400 PACE can supply the high airflow required by shotcrete equipment while allowing pressure adjustment.

Cable Blowing

Higher-pressure operation can be used for cable installation and blowing applications.

Drilling

The 12 bar operating point provides compressed air for selected drilling applications.

General Industrial Applications

The portable configuration also makes the compressor useful where compressed air is required away from a fixed compressor room.

Atlas Copco’s official PACE documentation specifically identifies handheld tools, abrasive blasting, shotcrete, cable blowing and drilling among the intended application examples.