Linghein LH+ Series Oil-Cooled PM VSD Screw Air Compressor
Core Technology
Oil-cooled system with enhanced thermal management, preventing overheating during peak loads
High-performance rare-earth permanent magnet motor delivering exceptional torque at lower speeds
Precision rotors engineered with optimal clearance — minimal leakage, maximum volumetric efficiency
Integrated inverter control with sophisticated algorithms for real-time adjustment
Energy Efficiency
Reduces electricity consumption by up to 30% compared to traditional models
Maintains stable pressure output while conserving power
Adapts seamlessly to fluctuating air demand without wasting energy
Heat recovery potential adds a further layer of efficiency
Reliability & Durability
Heavy-duty architecture with reinforced, high-grade components for 24/7 industrial use
Withstands high-pressure cycles and extreme ambient temperatures
Performs reliably in high-humidity environments
Rigorously tested to international quality standards; intelligent monitoring extends maintenance intervals
Control & Connectivity
Intuitive interface for easy operation and diagnostics
Smart connectivity with remote monitoring capabilities
Multiple communication protocols for factory automation integration
Smooth startups that eliminate the current spikes common in fixed-speed units
Overload protection and automatic shutdown safeguards
Air Quality
Maintains Class 0 air quality standards when paired with appropriate filtration
Supplies clean, reliable air for sensitive applications
Applications
Automotive manufacturing and food processing
Pharmaceuticals and electronics, where clean air output is critical
Mining and construction, for heavy-duty duty cycles
Wide capacity range to suit different business scales
Value & Outlook
Reduced downtime and enhanced productivity
Lower total cost of ownership, with substantial savings reported by customers
Simplified installation and commissioning
Aligned with global sustainability goals — future-proof technology backed by Atlas Copco expertise
VSD oil cooled permanent magnet screw air compressor — GASFlow presents a high-performance line of VSD screw compressors engineered for demanding industrial use. Combining variable speed drive control, permanent magnet efficiency, and oil-cooled rotary air compressors technology, this product family delivers energy-saving industrial compressors that meet the needs of modern facilities seeking reliable compressed air with superior efficiency and lower operating cost.
Product overview
The GASFlow VSD oil cooled permanent magnet screw air compressor range spans 7.5kW to 55kW and offers working pressures of 7, 8.5, and 10.5 bar. These VSD screw compressors incorporate advanced permanent magnet efficiency to reduce electrical losses and improve part-load performance. Each oil-cooled rotary air compressors unit is designed to provide stable, continuous compressed air while minimizing heat generation and enhancing reliability. As energy-saving industrial compressors, these models are optimized for industrial applications where uptime, lifecycle cost, and energy footprint are critical metrics.
Key features
- Variable Speed Drive (VSD) control: The VSD screw compressors provide precise capacity modulation to match demand in real time. By adjusting motor speed, the VSD screw compressors minimize energy waste and reduce frequent start-stop cycles associated with fixed-speed machines.
- Permanent magnet motor: Permanent magnet efficiency lies at the heart of the design. The permanent magnet efficiency reduces rotor losses and enhances motor performance, delivering higher efficiency across operating ranges compared with traditional induction motors.
- Oil-cooled screw element: Oil-cooled rotary air compressors use oil not only for lubrication but also for effective thermal management, carrying heat away from the compression chamber to ensure stable temperatures and long life of components.
- Robust Airend design: The screw Airend is optimized for durability and efficiency. The VSD screw compressors employ precision-machined rotors and tight clearances to improve volumetric efficiency and lower specific power consumption.
- Integrated cooling system: An advanced oil and air cooling circuit keeps the compressor within optimal temperature ranges. Oil-cooled rotary air compressors reduce thermal stress and extend service intervals.
- Intelligent control system: The intelligent controller monitors pressure, temperature, and operating hours, adjusting the VSD screw compressors for best efficiency and offering fault diagnostics, trending, and remote communication options.
- Sound-damped enclosure: Acoustic treatment and a compact layout make the units suitable for installation near production areas where noise control is important.
- Serviceability: Modular components, easy-access panels, and standardized maintenance points simplify routine service. Oil-cooled rotary air compressors are designed for quick filter and oil changes to minimize downtime.
Applications
These VSD screw compressors are well suited for a wide range of industrial settings, including manufacturing plants, food and beverage processing, pharmaceuticals, automotive shops, textile mills, and electronics assembly. Facilities with fluctuating compressed air demand will particularly benefit from the VSD screw compressors’ ability to match output to load, leveraging permanent magnet efficiency to keep energy consumption low during partial-load operation. Oil-cooled rotary air compressors are ideal where robust thermal control is needed and where the system must operate continuously under heavy duty.
Technical innovations and advantages
- Enhanced part-load performance: One of the core technical advantages is the combination of VSD control with permanent magnet efficiency. This combination allows the VSD screw compressors to operate with significantly reduced energy consumption during periods of lower demand. Permanent magnet efficiency ensures that motor losses are minimized even at variable speed operation, while the VSD control eliminates the throttling and inefficiencies inherent in fixed-speed systems.
- Reduced life-cycle costs: Energy savings from VSD screw compressors and permanent magnet efficiency reduce electricity bills and shorten payback periods. In addition, the oil-cooled rotary air compressors’ optimized thermal management reduces wear and tear, lowering maintenance costs and extending component life.
- High reliability under continuous duty: Oil-cooled rotary air compressors maintain stable operating temperatures and effective lubrication, enabling continuous operation in harsh industrial environments without degradation of performance.
- Compact footprint with integrated systems: GASFlow’s VSD screw compressors combine Airend, motor, drive, cooling, and control systems into a compact package. This reduces installation complexity and space requirements on shop floors.
- Intelligent operation and connectivity: The advanced controller provides adaptive control strategies and predictive maintenance alerts, maximizing uptime. Remote monitoring capabilities enable centralized supervision of multiple VSD screw compressors distributed across plant sites.
- Reduced environmental impact: Energy-saving industrial compressors reduce the carbon footprint of compressed air systems. Permanent magnet efficiency and VSD control both contribute to lower overall electricity consumption and associated emissions. These energy-saving industrial compressors set a benchmark for clean, cost-efficient plant air generation.
Performance highlights
- Wide power range coverage from 7.5kW to 55kW enables selection of appropriately sized VSD screw compressors for small to medium industrial applications.
- Multi-pressure options (7, 8.5, 10.5 bar) allow matching air supply to process requirements with minimal adjustment.
- High isothermal efficiency due to oil cooling and precise rotor geometry, which decreases specific energy consumption.
- Stable pressure delivery with rapid response to demand changes, reducing pressure drops and improving downstream process stability.
- Long service intervals and predictable maintenance scheduling, lowering total cost of ownership for these energy-saving industrial compressors.
Installation and service support GASFlow’s global technical support and ISO-certified manufacturing ensure that customers receive consistent product quality and responsive service. The VSD screw compressors are packaged for straightforward installation and commissioning. Local service teams trained by GASFlow provide spare parts, maintenance, and diagnostic services to keep oil-cooled rotary air compressors operating at peak performance. The modular design eases upgrades and component replacement, enabling plants to scale compressed air capacity as operations grow.
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