vsd-permanent-magnet-screw-air-compressor, vsd-permanent-magnet-screw-air-compressor, /variable-speed-compressors
EN
| Model | HD Series |
| Configuration | Permanent Magnet Variable Speed Drive |
| Category | Air-cooled Economy Type |
| Pressure | 7-8.5bar/ 10bar |
| Power | 7.5-22kW |
Linghein HD Series PM VSD Screw Air Compressor
Future-proof technology; a smart investment for cost-conscious operations
Reduced downtime and consistent performance under variable production demand
Clean, reliable air essential to modern industry







GASFlow introduces the VSD permanent magnet screw air compressor, a high-performance solution engineered for modern industrial air systems
Product features and design The VSD permanent magnet screw air compressor is built around a robust permanent magnet motor and a precision-engineered screw Airend
Energy efficiency and operational benefits
Energy savings are a core advantage of the VSD permanent magnet screw air compressor. The combination of a permanent magnet motor and variable speed drive yields immediate reductions in power draw during partial-load operation compared with fixed-speed systems. This design reduces start-stop events and the related inrush currents, which decreases mechanical stress on components and extends system lifespan. As a result, customers benefit from lower lifecycle costs and reduced maintenance intervals. GASFlow’s focus on producing energy-efficient compressors aligns with sustainability goals and helps facilities lower operating expenditures.
Control and intelligent functions
Advanced control logic is embedded to optimize performance. The variable speed drive continuously monitors demand and adjusts the permanent magnet motor speed for precise pressure control within the 7–8.5 bar range. An integrated controller provides real-time diagnostics, remote monitoring capabilities, and predictive maintenance alerts. These intelligent features improve uptime by allowing technicians to address emerging issues before failures occur. The compressor’s control panel includes clear status indicators and supports network connectivity for integration into building management systems or industrial IoT platforms, enabling centralized oversight of multiple industrial air systems.
Applications and suitability
The VSD permanent magnet screw air compressor is ideal for a broad range of industrial air systems and processes that require reliable compressed air at pressures between 7 and 8.5 bar. Typical applications include manufacturing plants, automotive assembly lines, food and beverage processing, pharmaceuticals, textile production, and general plant utilities. Its energy-efficient compressors design is particularly beneficial for facilities with variable or intermittent demand patterns, where the variable speed drive and permanent magnet motor combination delivers measurable savings. The compact size and low acoustic profile make it suitable for installations close to production areas without disrupting operations.
Innovation and technical advantages
This model represents a leap forward in compressor technology by integrating a permanent magnet motor with advanced variable speed drive control. The permanent magnet motor provides higher efficiency and improved torque density compared with conventional induction motors, resulting in lower heat generation and better part-load performance. The variable speed drive ensures the motor operates at optimal speed for actual air demand, minimizing wasted energy. Together, the permanent magnet motor and variable speed drive enable energy-efficient compressors that outperform traditional designs in both energy consumption and response time.
Reliability and serviceability
GASFlow’s production processes and ISO-certified quality control guarantee that each VSD permanent magnet screw air compressor meets stringent manufacturing standards. Components are selected for durability, and the layout allows easy access for routine service tasks such as filter replacement, oil checks, and inspections. The compressor’s modular components simplify repairs and shorten downtime. Local service networks and global technical support from GASFlow ensure that spare parts and expert assistance are available to maintain high uptime for critical industrial air systems.
Environmental and economic impact
Adopting energy-efficient compressors like the VSD permanent magnet screw air compressor reduces facility energy use and associated greenhouse gas emissions. The reduced electricity consumption achieved through the variable speed drive and permanent magnet motor translates into lower operating costs and faster return on investment. Facilities that prioritize sustainability will find this model supports energy management initiatives and regulatory compliance, while also helping to lower total cost of ownership for industrial air systems.
Installation and commissioning
GASFlow provides comprehensive guidance for installation and commissioning to ensure optimal performance from day one. The compressor’s compact design simplifies site planning and reduces the footprint required for new installations. During commissioning, the variable speed drive is tuned to the facility’s demand profile and the permanent magnet motor is calibrated for peak efficiency. GASFlow offers training for in-house maintenance teams and optional service contracts to handle preventive maintenance, ensuring the energy-efficient compressors maintain peak operation.
Customization and options
Recognizing diverse industrial requirements, the VSD permanent magnet screw air compressor is available with multiple control and accessory options. These include advanced filtration packages, dryers, remote monitoring modules, and tailored enclosure options to meet sound and space constraints. Variable speed drive settings can be customized to match specific duty cycles, maximizing the advantages of the permanent magnet motor across industrial air systems.
Conclusion
The GASFlow VSD permanent magnet screw air compressor represents a state-of-the-art choice for facilities seeking efficient, reliable compressed air solutions. By combining a permanent magnet motor with a responsive variable speed drive, GASFlow delivers energy-efficient compressors that reduce energy use, lower maintenance costs, and improve system uptime for a wide range of industrial air systems. With strong manufacturing pedigree, global support, and local service, GASFlow ensures that the VSD permanent magnet screw air compressor is a practical investment for companies pursuing performance and sustainability in their compressed air infrastructure.
Integrated Direct Drive: The air-end and the IE 4 permanent magnet adopt a direct connection for higher transmission efficiency.
Smart Inverter: Automatic stepless speed adjustment features a smooth soft-start to minimize impact on the power grid.
Enhanced Filtration Design: High-precision glass fiber oil filter effectively protects the air-end. The spin-on design allows quick and easy replacement.
Oil Circuit System: Steel pipe connection, with a sturdy and reliable structure, is resistant to high temperatures and ensures no leakage.
Ideal for industries requiring high efficiency, stable air supply, and continuous operation including metal processing, automotive manufacturing, machinery production, plastics, and general industrial plants, especially where energy efficiency and reliable performance are essential.
| Model | Power(kW) | Capacity F.A.D(m/min) | Dimension(mm) | Weight(kg) | Connection(inch) | |||
| 7-8.5bar | 10.5bar | Length | Width | Height | ||||
| HD7.5 | 7.5 | 1.0 | -- | 680 | 600 | 830 | 104 | R1/2" |
| HD7.5 | 7.5 | -- | 0.29-0.92 | 905 | 740 | 1011 | 150 | R3/4" |
| HD11 | 11 | 0.45-1.65* | 0.42-1.40 | 905 | 740 | 1011 | 210 | R3/4" |
| LCH11 | 11 | 1.80* | -- | 904 | 650 | 917 | 160 | G3/4" |
| HD15 | 15 | 0.6-2.1* | 0.6-1.7 | 905 | 740 | 1011 | 210 | R3/4" |
| HD15+ | 15 | 0.6-2.1* | -- | 905 | 740 | 1011 | 215 | R3/4" |
| LCH15 | 15 | 2.3* | -- | 904 | 650 | 917 | 160 | G3/4" |
| HD18.5 | 18.5 | 1.0-3.2* | 1.0-2.6* | 1005 | 895 | 1279 | 280 | R1" |
| HD22 | 22 | 3.9 | -- | 1120 | 750 | 1130 | 261 | R1" |
| HD22 | 22 | -- | 1.0-3.2* | 1005 | 895 | 1279 | 290 | R1" |
| HD22+ | 22 | 1.0-3.6* | -- | 1005 | 895 | 1279 | 295 | R1" |
| LCH22 | 22 | 3.5* | -- | 954 | 725 | 1090 | 220 | G3/4" |
| HD30 | 30 | 1.2-5.0* | 1.0-4.3* | 1235 | 1025 | 1416 | 320 | R1 1/2" |
| HD30+ | 30 | 1.2-5.0* | -- | 1235 | 1025 | 1416 | 335 | R1 1/2" |
| LCH30 | 30 | 5.5* | -- | 1238 | 848 | 1280 | 350 | G1 1/2" |
| HD37 | 37 | 1.8-6.4* | 1.8-5.4 | 1235 | 1025 | 1416 |
390(8bar) 400(10bar) |
R11/2" |
| HD37+ | 37 | 1.8-6.4* | -- | 1235 | 1025 | 1416 | 405 | R1 1/2" |
| LCH37 37 | 37 | 6.5* | -- | 1238 | 848 | 1280 | 350 | G1 1/2" |
| HD45 45 | 45 | 1.8-7.4 | 1.8-6.6 | 1235 | 1025 | 1416 | 410 | R1 1/2" |
| HD45+ | 45 | 1.8-7.4 | -- | 1235 | 1025 | 1416 | 430 | R1 1/2" |
| HD55 | 55 | 3.0-10.3* | 2.7-8.4 | 1475 | 1100 | 1650 | 724 | G2" |
| HD55+ | 55 | 3.0-10.3* | -- | 1475 | 1100 | 1650 | 724 | G2" |
| HD75 | 75 | 3.9-13.0 | 3.4-11.4 | 1475 | 1100 | 1650 | 768 | G2" |
| HD75+ | 75 | 3.9-13.0 | -- | 1475 | 1100 | 1650 | 768 | G2" |
Linghein provides a comprehensive range of compressed air solutions, including screw air compressors, air dryers, filtration systems, piping solutions, and energy recovery systems. Backed by Atlas Copco expertise, our products are designed to deliver reliable performance, energy efficiency, and flexible configurations for diverse industrial applications worldwide.
Whether operating in manufacturing plants, textile workshops, mining sites, food processing facilities, or precision production environments, Linghein solutions are designed to adapt to varying airflow demands, operating conditions, and environmental challenges. From continuous heavy-duty production to clean air applications, we support stable and efficient industrial operation worldwide.