Linghein LOH Series Oil-Cooled PM VSD Screw Air Compressor
Linghein LOH Series is a high-tier, heavy-duty oil-cooled permanent-magnet VSD screw air compressor, built to cut energy consumption, manage internal thermal dynamics and run continuously in the most demanding industrial environments
Technology
Oil cooling + PM VSD architecture
Liquid cooling combined with a permanent-magnet variable speed drive
Integrated Smart Inverter Solution
Matches motor speed to actual air demand in real time, responds smoothly to pneumatic pressure changes and instant load variation
Active system diagnostics
Built into the inverter control system
Multi-stage fluid separation
Clean, stable air output
Optimizes oil and rotor temperatures under load
Operating Benefits
Energy
Eliminates power waste, stabilizes day-to-day running costs, lowers utility spend
Thermal endurance
Sustains performance in high-temperature, demanding environments without overheating, including continuous operation
Maintenance & uptime
Reduces routine maintenance overhead, maximizes uptime, avoids production downtime
Applications
Automotive production lines & electronics packaging plants
Absolute air pressure stability that protects downstream automation equipment
Textile processing mills
Sustains high daily output
Automated smart factories / smart manufacturing
Reactive, load-following air supply
GASFlow presents the VSD oil cooled permanent magnet screw air compressor, a high-performance solution engineered for modern industrial compressed air demands. Available in power ranges from 7.5kW to 160kW and pressure variants of 7, 8.5, 10, and 13 bar, this permanent magnet screw air compressor series integrates advanced motor technology, variable-speed drives control, and optimized oil-cooled systems to deliver reliable, energy-efficient compressors that drive industrial sustainability and operational excellence
Product overview and core capabilities
The VSD oil cooled permanent magnet screw air compressor is built around a permanent magnet motor and a precision-engineered screw airend. The motor provides superior torque density and reduced electrical losses compared with traditional induction motors, enabling a compact footprint and faster response to load changes. The permanent magnet screw air compressor design minimizes mechanical and electrical inefficiencies, ensuring stable output and extended service intervals
Key features and technical advantages
- Permanent magnet motor efficiency: The permanent magnet screw air compressor uses high-efficiency permanent magnet technology to reduce conversion losses. This delivers higher overall machine efficiency, improved part-load performance, and a faster dynamic response to load fluctuations. The permanent magnet screw air compressor’s superior motor characteristics translate into measurable energy savings over conventional systems
- Variable-speed drives integration: Variable-speed drives enable precise control of motor speed and compressor output, matching air production to real-time demand. Incorporating variable-speed drives minimizes unnecessary unload cycles and reduces wear on mechanical components. The variable-speed drives capability also supports soft starting and smooth ramp-up, lowering inrush currents and extending electrical system lifetime
- Oil-cooled thermal management: An efficient oil-cooled system ensures stable operating temperatures and optimal lubrication of the screw elements. The oil-cooled design maintains consistent airend temperatures for reliable performance across duty cycles and reduces the need for auxiliary cooling infrastructure, contributing to compact system installation and lower site complexity
Applications and industry fit
The VSD oil cooled permanent magnet screw air compressor is engineered for a broad range of industrial sectors where reliable compressed air and energy efficiency are vital. Typical applications include
- Manufacturing and assembly lines that require continuous and variable compressed air supply
- Food and beverage operations that demand hygienic, stable compressed air at regulated pressures
- Automotive plants needing responsive air systems for pneumatics, painting, and tools
- Electronics manufacturing where stable pressure and low contamination risk are critical
- Packaging, textiles, and pharmaceutical processes where reducing energy cost per unit of production supports competitiveness and sustainability targets
Energy efficiency and industrial sustainability
GASFlow’s VSD oil cooled permanent magnet screw air compressor directly addresses industrial sustainability through improved energy performance and intelligent control. Energy-efficient compressors are central to lowering operational expenses and reducing greenhouse gas emissions associated with plant utilities. The combination of permanent magnet motor technology and variable-speed drives enables the compressor to maintain high efficiency across partial-load conditions—where most compressed air systems operate—thereby maximizing lifecycle energy savings
Innovation and engineering excellence
GASFlow leverages advanced R&D and lean manufacturing practices to deliver innovation in compressor technology. The permanent magnet screw air compressor represents a culmination of improved electromagnetic design, precision machining of the screw elements, and sophisticated control algorithms implemented through variable-speed drives. These innovations lead to superior volumetric efficiency, lower heat generation, and better adaptability to process variations
Why choose GASFlow’s VSD oil cooled permanent magnet screw air compressor
- Proven energy savings with permanent magnet motor technology and variable-speed drives, translating into lower operating costs and faster payback
- Reliable, stable compressed air output enabled by precision screw design and oil-cooled thermal regulation
- Scalable solutions across a wide power and pressure range to meet diverse industrial needs
- Strong focus on industrial sustainability through reduced energy consumption and support for corporate environmental goals
- Backed by GASFlow’s advanced R&D, ISO-certified manufacturing processes, and global technical support network
For industries seeking a high-efficiency, reliable compressed air solution, GASFlow’s VSD oil cooled permanent magnet screw air compressor offers a compelling combination of advanced motor technology, variable-speed drives control, and optimized oil-cooled operation
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