Why Compressed Air is Mission-Critical for Aerospace in Bristol

Air is the hidden force on the factory floor. It’s the power behind pneumatic assembly tools, advanced composite curing systems, and more. In many applications, compressed air is not just a power source; it becomes an integral part of the formula for producing the product. The air makes direct contact with the product during painting, cleaning, and composite manufacturing.

Whatever contaminates the air supply, a micron-sized oil droplet, water vapour, or solid particle, is delivered intact to the component surface. The consequences can be catastrophic:

• Protect High-Value Components: Prevent delamination in composites and paint defects caused by oil and water contamination – avoid expensive rework.
• Eliminate Costly Downtime: Failure of a single system can stop production with a knock-on effect throughout the supply chain. Systems must be ultra-reliable.
• Ensure AS9100D Compliance: The compressed air system is an auditable, quality-critical process. Non-compliance puts valuable contracts at risk.

Oil-Free vs Oil-Lubricated Compressors: Why Class 0 is Mandatory

To mitigate these risks, the aerospace industry mandates the use of high-purity compressed air. The global standard, detailed in our guide to ISO Classes for compressed air purity, classifies air based on its content of particles, water, and oil. For the most sensitive aerospace applications, the requirement is Class 0 for oil content, the most stringent classification achievable.

Achieving this standard presents a critical choice in technology. Lubricated systems rely on filters, which can fail. Atlas Copco’s oil-free designs remove the risk at the source. This protects high-value components and keeps production running. For aerospace, 100% oil-free air is a need-to-have, not a nice-to-have.

Atlas Copco Solutions for Aerospace Applications

As an Atlas Copco Premier Distributor, Control Gear provides a portfolio of Class 0 certified oil-free technologies engineered to meet the specific demands of aerospace manufacturing.

ZR/ZT Oil-Free Rotary Screw Compressors

These are the workhorses of the modern aerospace facility, providing reliable plant air for assembly lines, MRO workshops, and pneumatic tools. Equipped with Variable Speed Drive (VSD), they deliver outstanding energy efficiency for the fluctuating air demands typical of aerospace production.

SF Oil-Free Scroll Compressors

With their ultra-quiet, compact design, SF scroll compressors are ideal for point-of-use applications in sensitive environments. They are the perfect solution for R&D labs, electronics cleanrooms, and avionics testing bays where a central air supply is impractical.

ZH Oil-Free Centrifugal Compressors

For major manufacturing sites with very high and continuous base-load demand, such as the Airbus wing facility in Filton, ZH centrifugal compressors provide exceptional efficiency and reliability at scale.

Nitrogen Generation and Plug-and-Play Systems (AIRCUBE)

Beyond compressed air, many aerospace processes require high-purity nitrogen for inerting atmospheres. Atlas Copco’s on-site nitrogen generators are used for:

• Aircraft fuel system purging
• High-pressure tyre inflation
• Assist with gas for precision laser cutting

For small to medium-sized enterprises in the Bristol supply chain or for mobile sites, Atlas Copco’s AIRCUBE containerised systems offer a complete, plug-and-play solution. These weatherproof ISO containers come fully integrated with VSD compressors, dryers, and filters, providing a flexible and rapidly deployable source of high-quality compressed air.

Compliance with Aerospace Standards

In the aerospace industry, compliance is not negotiable. Being able to prove compliance to the following standards is essential for quality assurance and OEM contracts.

• ISO 8573-1 Class 0: Required for sensitive aerospace applications where contamination must be avoided.
• AS9100D: Compressed air systems are audited as quality-critical processes.
• PSSR 2000: A Written Scheme of Examination is required for all pressure equipment.
• BS EN 12021: The breathing air quality standard for paint booth operators.
• COSHH: Requires control of oil mists and particulates to protect worker health.

Cutting Energy Costs with VSD & Heat Recovery

Energy typically accounts for over 70% of a compressor’s total lifecycle cost. A strategic approach to efficiency can yield significant savings. Poorly designed systems often create ‘artificial demand’ by running at higher pressures than necessary. Every 1 bar of excess pressure increases energy use by around 8%. A Compressed Air Audit can identify these opportunities and recover costs rapidly, with some projects having payback periods as short as 18–24 months.

• Variable Speed Drive (VSD): VSD technology adjusts motor speed to meet air demand, reducing electricity use by up to 60% in facilities with variable loads.
• Heat Recovery: More than 90% of the electrical energy consumed by a compressor is turned into heat. Heat recovery systems can capture this thermal energy to make hot water for use in facilities, often with a return on investment in 1-3 years.

Preventative Maintenance & 24/7 Support in Bristol

Unscheduled downtime in aerospace manufacturing can cost hundreds of thousands of pounds per hour. A reactive maintenance approach is an untenable risk. A structured, preventative maintenance plan is essential for ensuring reliability and is another key component of a successful AS9100D audit.

Control Gear service plans include the Guardian Service Plan, which allows for fixed annual costs covering all maintenance requirements. This includes SMARTLINK remote monitoring, which provides real-time data and predictive alerts to enable preventative action and prevent any potential failure that could result in a shutdown. Our Air Compressors in Bristol team is available 24/7 for emergency support to ensure your local facility remains open.

Why Choose Control Gear as Your Aerospace Partner

Control Gear has been supporting the West Coast industry for over 50 years, including Bristol’s globally leading aerospace cluster. Situated at the centre of the West of England aerospace cluster, Control Gear is ideally placed to serve the OEMs and Tier suppliers at Filton, Abbey Wood, a nd across the wider Bristol region.

Control Gear is an Atlas Copco Premier Distributor and is ISO 9001, 14001 and 45001 accredited, delivering the best global technology and local know-how. Our FGAS-certified engineers understand the specific needs of Air Compressors for Aerospace Industry and provide a complete turnkey service: from initial audit and system design to professional installation and lifelong maintenance.

A modern compressed air system is a strategic asset. By investing in the guaranteed purity of Class 0 oil-free technology and partnering with a local specialist, Bristol’s aerospace leaders can protect their products, ensure compliance, and power their future success.

Take the Next Step

Talk to our Bristol team today, book your free aerospace audit, get a tailored Class 0 quote, or download our Aerospace Compliance Guide.