Rotary Screw Air Compressors – ASG Energy Solutions
Unmatched Efficiency, Unwavering Reliability
At ASG Energy Solutions, we understand that compressed air is the backbone of many industrial operations. Our advanced range of rotary screw air compressors is engineered to deliver high-efficiency performance, maximum uptime, and minimal total cost of ownership (TCO)—no matter the size or scope of your facility.
From precision manufacturing to heavy-duty industrial processing, our compressors are built to provide uninterrupted, energy-efficient air supply with low noise and high reliability. Whether you require oil-lubricated or oil-free compressors, fixed-speed, dual-speed, or variable-speed (VSD) options, our solutions are tailored for your needs.

How Rotary Screw Compressors Work
Rotary screw compressors use two interlocking helical screws (rotors) to compress air as it moves through the chamber. This design allows for continuous duty cycles, making them ideal for 24/7 operations.
Unlike piston compressors that work in short bursts and require more maintenance, rotary screw compressors are more efficient, quieter, and more durable, making them the go-to solution for industries that demand constant airflow with precision.
Core Advantages of ASG Rotary Screw Compressors
Quiet, Continuous Operation
Designed to run around the clock with noise levels as low as 60 dBA
Ideal for workshops, production floors, and urban facilities
Reduced vibrations and low mechanical stress increase service life
Higher Efficiency with VSD Technology
Up to 60% energy savings with Variable Speed Drive (VSD) systems
Automatically adjusts compressor speed to match air demand in real-time
Reduces power consumption and wear-and-tear during low-load periods
Exceptional Durability
Built for longevity with fewer moving parts than piston-based systems
Lower maintenance needs and longer service intervals
Designed for extreme environments and high-duty cycles
Compressor Configurations for Every Application
🔹 Oil-Lubricated Rotary Screw Compressors
Oil-lubricated screw compressors inject oil into the compression chamber, which serves to cool, seal, and lubricate the moving parts. This results in minimal internal leakage, high efficiency, and enhanced reliability even during long-term operation.
Ideal For:
Manufacturing
Automotive and metalworking
General industrial processes
Plastic and injection molding
Key Benefits:
High-performance cooling and sealing
Long compressor lifespan
Minimal oil carryover with advanced filtration
Oil-Free Rotary Screw Compressors
When air purity is critical, oil-free compressors offer 100% oil-free compressed air by avoiding oil contact in the compression process. These units are crucial in sectors where contamination cannot be tolerated.
Ideal For:
Food & beverage processing
Pharmaceutical and medical applications
Electronics and semiconductor manufacturing
Cleanroom operations
Key Benefits:
100% oil-free air (ISO 8573-1 Class 0 certified)
Lower risk of contamination
Water-lubricated and hybrid cooling options available
Our Rotary Screw Compressor Series
ASG Energy Solutions offers a wide selection of models, sizes, and configurations to meet your specific needs.
Workshop-Grade Compressors (2–7 kW)
Series: ASG G2-G7 / G2-G7 VSD
Quiet and compact screw compressors for small-scale production or workshops
Available in both fixed and variable speed options
Low maintenance, plug-and-play operation
Mid-Range Performance (5–37 kW)
Series: ASG GA-VSDˢ Series
Market-leading energy efficiency with VSDˢ technology
Reduces energy costs by up to 60%
Cloud-enabled for remote performance monitoring and smart analytics
Heavy-Duty Industrial Range (30–90 kW)
Series: ASG GA⁺ Series / GA⁺ 30-90
Robust oil-injected compressors for demanding operations
Optimized for performance, reliability, and low TCO
Smart controller interface with touch display and IoT integration
Extreme Conditions & High-Pressure (90–315 kW)
Series: ASG GA Xtreme / GA 180–315 / GR Two-Stage Series
Designed to handle high-pressure applications up to 20 bar
Withstands extreme environmental conditions
Dual-stage compression for reduced energy consumption and extended component life
Containerized Solutions: AIRCUBE Series
Pre-assembled, containerized compressor rooms
Ideal for sites with space constraints or mobile/remote operations
Includes air treatment, cooling, and control in one weatherproof package
Dual-Speed Compressors: GA FLX Series
Bridging the gap between fixed speed and VSD compressors
Offers improved energy savings without the cost of full VSD technology
Excellent choice for mid-size operations with moderate load variability
Oil-Free Compressor Portfolio
AQ Water-Injected Oil-Free Compressors
Water-injected for heat control and lubrication
Delivers pure, clean air ideal for hygienic applications
Available in air- or water-cooled versions
ZR & ZT Series (VSD Available)
100% oil-free air with Class 0 certification
Quiet and robust – ideal for sensitive production environments
Optional heat recovery systems to capture waste energy
ZE & ZA Low-Pressure Oil-Free Compressors
Designed for low-pressure processes such as aeration, pneumatic conveying, and fermentation
Engineered for harsh-duty, continuous workloads
ZD Oil-Free Booster Compressors
Screw + piston technology to boost pressure for high-pressure air or nitrogen systems
Ideal for PET bottling, laser cutting, and other pressure-intensive tasks
Industry Applications
ASG rotary screw compressors are trusted in dozens of industries worldwide:
Automotive
Spray painting, bodywork, tire inflation, power tools
Supports robotic automation and CNC machine air needs
Food & Beverage
Product handling, packaging, bottle blowing, carbonation
100% oil-free air prevents contamination of consumables
Pharmaceuticals & Biotechnology
Cleanroom applications, tablet coating, air knives, fermentation
Compliant with FDA and GMP standards
Chemical & Petrochemical
Material transport, gas compression, and tank purging
High pressure and corrosion-resistant models available
Wastewater Treatment
Efficient aeration systems for biological treatment
Oil-free air ensures ecological safety
Medical & Healthcare
Ventilators, surgical equipment, lab air
Ultra-clean air systems for hospital and lab environments

Energy Savings with VSD Technology
Variable Speed Drive (VSD) is a game-changer in compressed air systems. It allows compressors to automatically adjust their motor speed and airflow based on real-time air demand.
Avoids unnecessary energy consumption
Reduces motor wear
Increases service intervals
Improves overall system efficiency
Typical ROI: 1–2 years based on energy savings alone.
Sustainability & Energy Recovery
ASG compressors are built with sustainability in mind, supporting your company’s goals to reduce energy consumption and carbon footprint. Many of our models support:
Heat recovery: Capturing and reusing up to 90% of waste heat
EcoDrain condensate management
Low global warming potential (GWP) refrigerants in integrated dryers
Smart monitoring systems for predictive maintenance and performance tracking
Support, Maintenance & Lifecycle Services
At ASG Energy Solutions, we don’t just sell compressors — we partner with you throughout the lifecycle of your system.
Installation & Commissioning
Preventive Maintenance Plans
Remote Monitoring & IoT Integration
Genuine Parts & Lubricants
24/7 Support Teams
Get Started with ASG Energy Solutions
Whether you’re setting up a new facility, expanding an existing operation, or upgrading your old compressors, ASG Energy Solutions is here to help you get the most efficient, reliable, and cost-effective compressed air solution for your needs.
👉 Contact us today for a free assessment, energy audit, or detailed product quote.
