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75kW Permanent Magnet Variable Frequency Screw Air Compressor

The Screw Air Compressor is a widely - used and reliable device in the air - compression industry. It features a pair of intermeshing helical rotors, commonly known as screws. As these rotors rotate, air is trapped in the grooves between the threads and gradually compressed as it moves along the length of the screws.
This type of compressor offers several key advantages. It has a high - volume air - delivery capacity, making it suitable for various industrial applications that require a continuous and large - volume supply of compressed air. Its operation is relatively stable, with less pulsation in the air output compared to some other compressor types. Additionally, screw air compressors are known for their durability and long - service life. They can withstand high - pressure operations and are often used in industries such as manufacturing, construction, and mining. With continuous technological advancements, modern screw air compressors also come with energy - saving features, contributing to cost - effective and sustainable operation.
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Product Overview


Our 75kW Permanent Magnet Variable Frequency (PM VSD) Screw Air Compressor sets a new standard in energy efficiency and industrial performance for large-scale laser cutting operations. Leveraging IE5-rated PM motors and high-efficiency rotors with optimized profiles, it achieves 30% energy savings compared to traditional fixed-speed compressors, making it an environmentally friendly and cost-effective solution for high-volume production. The IP55-sealed design and dual-loop cooling system ensure reliable operation in high-dust, high-temperature environments, such as heavy-industry factories and manufacturing plants with challenging conditions. Its robust construction and advanced control system make it a cornerstone of continuous production lines.


Product Specifications


Pressure: 8–13 bar (116–188 psi) adjustable for diverse applications, with a wide range to accommodate everything from thin sheet metal cutting to thick plate processing.

Flow Rate: 9.3–12.5 m³/min (328–441 CFM) to power 5–10kW laser cutters, with the capacity to support multiple laser machines in a production line simultaneously.

Motor: 75kW PM motor with IP55 protection and F-class insulation for 180°C heat resistance, ensuring safe and reliable operation even in extreme temperature conditions.

Noise Level: ≤68 dB for operator comfort, with sound-dampening enclosures that reduce noise pollution in the workplace and improve working conditions.

Cooling: Water-cooled system with ≤25°C inlet temperature requirement, featuring a high-efficiency heat exchanger that maintains optimal operating temperatures for extended service life.



Ultra-High Efficiency: PM motor eliminates eddy current losses common in traditional induction motors, achieving 94%+ efficiency at full load and maintaining high efficiency even at partial loads.

Dynamic Pressure Control: VSD adjusts speed in 1 second to match fluctuating demand, reducing 15–20% in no-load energy consumption and ensuring precise pressure control for consistent cutting results.

Low Maintenance: Oil-free compression option available for applications requiring contamination-free air, combined with a self-diagnostic system that alerts operators to potential issues before they cause downtime.

Remote Monitoring: IoT-enabled interface provides real-time insights into energy consumption, pressure, temperature, and performance metrics, allowing for data-driven decision-making and optimized operation.

Durability: Heavy-duty cast iron housing and corrosion-resistant coatings on all metal components ensure 20+ years of service life, even in harsh industrial environments with high humidity and chemical exposure.




Large-Scale Manufacturing: Powers multi-laser cutting lines in automotive and shipbuilding industries, where high-volume production of metal components requires reliable, high-capacity compressed air.

Aerospace: Supports high-precision machining of aircraft structural components, including fuselage parts, wing sections, and engine components made from advanced alloys and composites.

Food & Beverage: Delivers oil-free air for packaging and bottling processes, complying with food safety standards and ensuring product integrity in the manufacturing of food containers and beverage cans.

Mining & Construction: Reliable performance in harsh environments with high dust and humidity, powering laser cutting equipment used in the production of mining machinery, construction tools, and structural steel.



Technical Parameter

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