GA 355-900
Oil-Injected screw compressors GA (VSD⁺)
Features
The Atlas Copco GA 355-900 series consists of heavy-duty, oil-injected rotary screw compressors engineered to deliver high reliability and energy efficiency in demanding industrial environments like mining, metallurgy, and power generation.
Core Compression Technology
- Twin Element Design: Utilizes two smaller screw elements on a single drive and gear casing rather than one massive single element. This configuration provides superior thermodynamic efficiency and a longer operational lifespan by reducing physical loads on the rotors, bearings, and gears.
- Asymmetric Rotor Profiles: Advanced element geometry maximizes Free Air Delivery while keeping power requirements minimal.
- High-Efficiency Motors: Heavy-duty electric motors feature Totally Enclosed Fan Cooled protection, class F insulation, and low-maintenance, oil-lubricated bearings that minimize machine downtime.
Air Quality and Moisture Management
- Cyclonic Moisture Separator: Included as standard equipment right after the cooler block to automatically and manually remove condensate before it can enter the distribution network.
- Three-Step Oil Separation: A highly efficient separation process guarantees minimal residual oil carryover, ensuring a cleaner compressed air output.
- Protective Filtration: Heavy-duty air intake filters protect internal rotating components from dust and abrasive particles found in harsh work environments.
Smart Control and Monitoring
- Elektronikon Controller: An advanced microprocessor unit that maintains system pressure within a tight, predefined band to eliminate wasteful over-pressurization.
- High-Resolution Color Display: Features intuitive navigation and clear visual icons for an instant view of running conditions, maintenance status, and service alerts.
- Remote Integration Capabilities: Can be customized with additional sensors, fieldbus interfaces, internet connectivity, and automated alert systems.
Energy Recovery and Sustainability
- Integrated Heat Recovery: Optional factory-integrated heat exchangers can capture up to 75% of the compressor shaft power.
- Industrial Hot Water Production: The recovered thermal energy produces hot water that can directly supplement industrial boilers, space heaters, and factory showers, significantly decreasing overall site energy bills.
Benefits
The Atlas Copco GA 355-900 oil-injected rotary screw compressors deliver outstanding performance, maximum reliability, and a low cost of ownership under harsh industrial environments.
Key Benefits
- Highest Reliability: State-of-the-art compression elements use innovative asymmetric rotor profiles powered by high-efficiency electric motors.
- Reduced Energy Costs: Advanced design and high-efficiency motors significantly reduce power consumption and lower overall lifecycle costs.
- Maximum Uptime: Built-to-last drive systems and heavy-duty air inlet filters ensure continuous, trouble-free operations in the toughest conditions.
- Protects Downstream Process: An integrated water separator mechanically removes nearly 100 percent of the condensate to ensure excellent air quality.
- Easy Maintenance: Design features like hinged fans, fan motors, and cowls allow for straightforward cooler cleaning and quick separator element changes.
- All-In-One Solution: Pre-assembled packages simplify installation, minimize commissioning time, and require no external instrumentation air.
