Portable Compressor U 75 | U 110 | 110 PACE KD WUX

Portable Compressor U 75 | U 110 | 110 PACE KD WUX

The Atlas Copco U 75, U 110 and U 110 PACE are silenced, single-stage, oil-injected screw compressors, powered by liquidcooled, three-cylinder Kubota diesel engine.

The unit consist of one high efficient compressor element, diesel engine, cooling, air/oil separation and control systems – all enclosed within silenced XA strong steel canopy.

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.

The Unique feature of this new range is the PACE functionality coupled with the intuitive XC2003 controller.

This pioneering technology enables multiple pressure and flow settings, ensuring you match air flow and pressure to your

application needs.

Available Models

U 75 Single Stage – 75 cfm – Kubota Diesel Engine

U 110 Single Stage – 100 cfm – Kubota Diesel Engine

U 110 PACE Single Stage – 45-100 cfm – Kubota Diesel Engine

Features

• 10% compact and 3-layer stackable
• PACE
• 3 layers Zincor, Primer and Powder coating
• Single side service
• Low noise emissions
• 1500 hours service interval
• Generator option

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Benefits

• Save transport and storage cost
• You control the pressure and flow
• Optimal protection against corrosion
• Change of consumable in 1 hour
• Able to work in noise sensitive area
• Increase uptime, save service cost
• Air and power combined in one machine

U 75-110 PACE KD WUX – Product Reference

Models Available

Model	Compressor Type	Working Pressure	Free Air Delivery	Engine
U 75	Single-stage oil-injected screw	7 bar / 100 psi	75 cfm / 2.1 m³/min	Kubota D722
U 110	Single-stage oil-injected screw	7 bar / 100 psi	100 cfm / 2.8 m³/min	Kubota D902
U 110 PACE	Single-stage oil-injected screw	5–10.5 bar / 70–150 psi	45–100 cfm / 1.3–2.8 m³/min	Kubota D902

The published Atlas Copco Utility range specifications confirm these pressure and air-delivery figures.

U 75 vs U 110 vs U 110 PACE

Feature	U 75	U 110	U 110 PACE
Standard pressure	7 bar	7 bar	5–10.5 bar
Air delivery	75 cfm	100 cfm	45–100 cfm
Air delivery	2.1 m³/min	2.8 m³/min	1.3–2.8 m³/min
Engine	Kubota D722	Kubota D902	Kubota D902
Engine power	14.9 kW	18.5 kW	18.5 kW
PACE technology	No	No	Yes
Compressor oil capacity	5 L	5 L	5 L
Dimensions	1,580 × 740 × 850 mm	1,580 × 740 × 850 mm	1,580 × 740 × 850 mm

The principal difference is that U 75 and U 110 are fixed-pressure configurations, while U 110 PACE provides adjustable pressure and corresponding airflow control.

Principle Data

Compressor Element

The quality of a compressor can be measured through the reliability, efficiency and durability of the compressor element used. Through decades of expertise in the design of compressor elements, the result is the production of most efficient and reliable compressors on the market.

Air/Oil Separator

Air and oil separation is achieved through a centrifugal oil separator combined with a filter element.

Designed for a higher maximum working pressure, the separator is equipped with a high pressure sealed and certified safety relief valve, automatic blow-down valve.

Cooling System

The engine is provided with a coolant cooler and the compressor is provided with an oil cooler. The cooling air is generated by a fan, driven by the engine.

Compressor Regulating System

The compressor is provided with a continuous pneumatic regulating system and a blow-off valve which is integrated in the unloader assembly. Introduction of intuitive PACE functionality allows the compressor to operate at any pressure setting between 5 and 10.5 bar.

The compressor can have 2 pressure presets and we can use the controller to toggle between the pressure presets

Economic power consumption is assured by the fully automatic, step-less speed regulator that adapts engine speed to air demand.

Discharge Outlets

Compressed air is available from 2 x G3/4 outlet valves.

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U 75 Portable Compressor

The Atlas Copco U 75 is the entry model in this compressor range, delivering approximately 75 cfm (2.1 m³/min) at a normal working pressure of 7 bar (100 psi).

It is powered by a Kubota D722 three-cylinder diesel engine with a rated power of 14.9 kW at normal shaft speed.

U 75 Key Specifications

Parameter	U 75
Compressor type	Single-stage, oil-injected screw
Working pressure	7 bar / 100 psi
Free Air Delivery	75 cfm / 2.1 m³/min
Engine	Kubota D722
Engine power	14.9 kW
Engine cylinders	3
Full-load speed	3,400 rpm
Compressor oil capacity	5 L
Engine oil capacity	3 L
Standard fuel tank	20 L
Dimensions (L × W × H)	1,580 × 740 × 850 mm
Approx. weight	500 kg

Atlas Copco’s current Utility range page lists the U 75 with a 14.9 kW Kubota D722 engine and 2.1 m³/min free-air delivery.

U 110 Portable Compressor

The U 110 increases the air-delivery capacity to 100 cfm (2.8 m³/min) while maintaining a standard working pressure of 7 bar (100 psi).

U 110 Key Specifications

Parameter	U 110
Compressor type	Single-stage, oil-injected screw
Working pressure	7 bar / 100 psi
Free Air Delivery	100 cfm / 2.8 m³/min
Engine	Kubota D902
Engine power	18.5 kW
Engine cylinders	3
Full-load speed	3,600 rpm
Compressor oil capacity	5 L
Engine oil capacity	3 L
Standard fuel tank	20 L
Dimensions (L × W × H)	1,580 × 740 × 850 mm
Approx. weight	500 kg

U 110 PACE Portable Compressor

The U 110 PACE is the most flexible configuration in this range.

Unlike the fixed 7 bar operating pressure of the U 75 and U 110, the U 110 PACE uses PACE technology to provide a variable operating range of approximately 5 to 10.5 bar (70–150 psi).

The corresponding free-air delivery range is approximately 45–100 cfm (1.3–2.8 m³/min).

This allows one compressor to support applications with different pressure and airflow requirements without requiring a separate compressor for every operating condition.

U 110 PACE Key Specifications

Parameter	U 110 PACE
Compressor type	Single-stage, oil-injected screw
Working pressure	5–10.5 bar / 70–150 psi
Free Air Delivery	45–100 cfm / 1.3–2.8 m³/min
Engine	Kubota D902
Engine power	18.5 kW
Engine cylinders	3
Full-load speed	3,600 rpm
Compressor oil capacity	5 L
Engine oil capacity	3 L
Standard fuel tank	20 L
Dimensions (L × W × H)	1,580 × 740 × 850 mm
Approx. weight	500 kg

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Applications

The U 75, U 110 and U 110 PACE are designed for applications where a compact diesel-powered compressed-air source is required.

Typical applications include:

• Pneumatic tools
• Construction work
• Road maintenance
• Utility and infrastructure projects
• General maintenance
• Sandblasting and surface preparation
• Small drilling applications
• Remote job sites
• Equipment installation
• Industrial field service
• Mobile workshop applications

The U 110 PACE can be particularly useful when different jobs require different pressure and airflow combinations.

Low-Noise Operation

The compressor package uses a silenced canopy to reduce operating noise.

The product reference lists maximum sound pressure levels of approximately 70 dB(A) at 7 m under the specified test conditions for the U 75, U 110 and U 110 PACE.

This makes the range suitable for applications where noise control is an important consideration.

Frequently Asked Questions

What is the Atlas Copco Portable Compressor U 75?

The U 75 is a compact diesel-powered portable compressor with a 75 cfm free-air delivery and a standard working pressure of 7 bar.

What is the difference between Portable Compressor U 75 and U 110?

The main difference is air capacity. The U 75 provides approximately 75 cfm, while the U 110 provides approximately 100 cfm. The U 75 uses a Kubota D722 engine, whereas the U 110 uses a Kubota D902.

What is the Portable Compressor U 110 PACE?

The U 110 PACE is the adjustable-pressure version of the U 110 platform. It provides a pressure range of approximately 5–10.5 bar and an air-delivery range of approximately 45–100 cfm.

What engine does the U 110 use?

The U 110 and U 110 PACE use the Kubota D902 three-cylinder diesel engine with an engine power of approximately 18.5 kW.

Is the U 75 oil-free?

No. The U 75 is a single-stage oil-injected screw compressor. It should not be confused with Atlas Copco’s oil-free compressor product ranges.

What is the working pressure of the U 75?

The standard U 75 has a normal effective working pressure of 7 bar (100 psi).

What is the maximum pressure of the U 110 PACE?

The published U 110 PACE operating range extends to 10.5 bar (150 psi). The available airflow varies according to the selected pressure and operating condition.