Choosing the right air compressor for efficient roadworks

11 June, 2025

Air compressors are a cornerstone of modern road construction, powering pneumatic tools and equipment that accelerate projects and enhance efficiency. They’re indispensable for operating pneumatic tools like breakers, impact wrenches, and spray guns, as well as for precision painting of road markings and inflating tyres on-site to keep construction vehicles operational. Additionally, air compressors facilitate drilling for road signage installation and power compactors for ground preparation. Altogether, this makes air compressors a vital component in road construction and maintenance projects.

Investing in the right compressor is not just about meeting immediate needs—it lays the foundation for long-term productivity and sustainability. Selecting the ideal air compressor for road works involves careful consideration of factors such as performance, mobility and durability. Features like weather resistance, low noise levels, and ease of maintenance further enhance performance and reliability in demanding outdoor environments. By prioritising these elements, contractors can boost efficiency, minimise downtime, and ensure successful project completion.

Modern air compressors are increasingly designed to meet environmental standards, such as low-emission diesel engines compliant with the StageV regulation, which aims to reduce oxides of nitrogen (NOx) and particulate matter (PM) emissions from new off-road compression-ignition (CI) engines. Selecting equipment that complies with these standards not only ensures regulatory adherence but also reduces the environmental impact of road works.

Here are the key factors to consider when selecting an air compressor to increase the efficiency of road works:

1. Performance requirements

One of the first considerations is the compressor’s power output, measured in bar (psi) for pressure and litres/min (cfm) for airflow. Most roadwork tools require pressure outputs typically ranging between 7-12bar (100–175psi), depending on the application, along with sufficient airflow to operate multiple tools simultaneously. Calculating the combined flow requirements of all tools is crucial to ensure uninterrupted performance. Air compressors can offer exceptional flexibility for example thanks to Dual Mode capability, which allow users to seamlessly switch between different performance settings based on application needs. This advanced feature is made possible by electronically controlled engines, which provide precise adjustments, optimized efficiency, and reduced fuel consumption.

2. Versatility

Roadworks often take place in remote or temporary locations, making mobility a critical factor. Compressors can be trailer-or skid mounted. Compact designs with lifting hooks and towing capabilities are particularly beneficial for frequent site changes. Modern air compressors are highly manoeuvrable and designed for easy transport, lifting, and loading, making them ideal for versatile and demanding work environments that meet diverse customer requirements.

3. Fuel type and efficiency