Rotary Compressor – Screw and Piston

Choosing the right compressor type is critical for both performance and cost efficiency.

Rotary Screw Compressor

• Continuous duty operation (ideal for 24/7 use)
• Higher efficiency with lower energy costs
• Low noise and smoother operation
• Minimal vibration
• Fewer wearing parts → reduced maintenance
• Stable air pressure output
• Designed for long operating hours

CompAir rotary compressors also deliver higher air output per kW, improving overall system efficiency. 

CompAir offers a complete portfolio of rotary screw compressors and piston compressors, ensuring the right solution for every application. All airflow options are available—please contact us for specific performance requirements.

Rotary Screw Compressor Range

LB Series (7.5 kW – 75 kW)

• Compact and cost-effective systems
• Available in base-mounted, tank-mounted, and full system configurations
• Fixed speed and regulated speed options
• Designed for reliable operation in ambient temperatures up to 46°C
• Ideal for small to medium industrial applications

L-Series (45 kW – 132 kW)

• High-performance industrial compressors
• Pressure range from 5 to 13 bar (≈72 to 188 psi)
• High airflow capacity for demanding applications
• Designed for heavy-duty continuous operation
• Advanced controls, high-efficiency airend, and low lifecycle cost

Piston (Reciprocating) Compressor Range

Single-Stage & Two-Stage Piston Compressors (1 HP – 25 HP | ≈0.75 kW – 18.5 kW)

• Durable cast-iron construction for long service life
• Suitable for intermittent and medium-duty applications
• Maximum pressure up to 175 PSI (≈12 bar)
• Automatic start/stop operation with receiver-mounted options
• Ideal for workshops, automotive service, and light industrial use

Multi-Stage High Pressure Piston Compressors

• Designed for high-pressure applications up to 350 PSI (≈24 bar) and above (higher options available)
• Available in two-stage and multi-stage configurations
• Built with heavy-duty components for reliability
• Suitable for PET bottle blowing, testing, power applications, and specialised industrial processes

CompAir rotary compressors include industry-leading engineering features:

High Efficiency Components

• Premium airend with optimised rotor design
• IE3 motors (optional IE4 for higher efficiency)
• Gear-driven systems for reliable performance
• Multi-stage oil separation (<3 ppm carryover)

Cooling & Durability

• Integrated cooling compartments
• High-performance aftercoolers
• Thermostatically controlled fans

Long-Life Operation

• Premium lubricant with up to 8000-hour service life
• Reduced wear components
• Heavy-duty construction

Energy Efficient Operation

Energy efficiency is one of the biggest advantages of a rotary compressor.

Key Features

• Variable speed (regulated speed) technology
• Optimised airend efficiency
• No load/unload cycling losses
• Heat recovery options for additional savings

Variable speed compressors adjust output to demand, helping reduce energy consumption and operating costs.

Intelligent Controls & Monitoring

CompAir systems include advanced control platforms such as Delcos controllers:

Smart Control Features

• Touchscreen interface
• Real-time pressure and temperature monitoring
• Fault history and diagnostics
• Remote monitoring capability
• Auto restart after power failure
• Trend analysis and performance data

These systems help improve uptime, efficiency, and maintenance planning.

Complete Compressed Air Systems

CompAir offers full rotary compressor solutions, including:

• Air receivers
• Refrigerated and desiccant dryers
• Filtration systems
• Condensate management
• Nitrogen generators
• Multi-compressor control systems

This ensures a fully integrated and energy-efficient compressed air system.

Service, Reliability & Warranty

CompAir provides strong lifecycle support for every rotary compressor system:

• Genuine parts and lubricants
• Preventive maintenance programs
• System audits and optimisation
• Nationwide service network
• Extended warranty up to 5 years / 40,000 hours

Why Choose CompAir Rotary Compressors?

• Proven reliability in industrial applications
• High energy efficiency and low lifecycle cost
• Designed for tough operating conditions
• Advanced cooling and filtration systems
• Quiet and compact design
• Smart control and monitoring
• Wide product range for all applications

With over 200 years of engineering expertise, CompAir continues to deliver high-performance rotary compressor solutions trusted across industries worldwide.

Find the Right Rotary Compressor

When selecting a rotary compressor, consider:

• Required airflow (CFM / m³/min)
• Operating pressure
• Duty cycle
• Environment and temperature conditions
• Energy efficiency requirements
• Future expansion

From small workshops to large industrial plants, there is a rotary compressor solution designed to match your exact needs.