Union Technology has officially released its state-of-the-art Variable Frequency Screw Air Compressors, a product line that combines efficiency, stability, and intelligent control to meet the rigorous demands of modern industrial applications. Covering a wide power range from 7.5 kW to 250 kW, these compressors are designed to deliver significant energy savings while ensuring reliable, continuous operation. The launch includes models from 10A to 350A, each engineered with advanced features such as overload protection, overheat protection, and one-click emergency stop, setting a new standard in the industry.
Screw air compressors are mechanical devices that compress air through the rotation of two interlocking screws, which compress air to a high-pressure state. This design is known for stable operation, low noise, long lifespan, and ease of maintenance. Union Technology's variable frequency models take this a step further by adjusting the motor speed according to air demand, thereby eliminating energy waste during idle times. The driving mode is direct link, and the startup mode includes Y-△ startup and frequency conversion, providing smooth and controlled operation. The power supply supports customization, ensuring compatibility with various regional electrical standards.
The technical parameters of the 10A to 75A series highlight their capabilities. For example, the 10A model offers an exhaust volume of 1.2 m³/min at 0.7 MPa, with a 7.5 kW motor, noise level of 66±2 dB(A), and a weight of 140 kg. The 75A model delivers up to 10 m³/min at 0.7 MPa, powered by a 55 kW motor, with a noise level of 70±2 dB(A) and a weight of 1050 kg. The larger 100A to 350A series caters to heavy-duty needs, with the 350A model providing 42 m³/min at 0.7 MPa and a 250 kW motor. Lubricant usage ranges from 10L to 125L depending on the model, and export sizes vary from G1/2 to DN100. These compressors are built to last, with robust frames and high-quality components that withstand harsh industrial environments.
The applications for these variable frequency screw compressors are vast. In manufacturing plants, they provide a stable air source for pneumatic tools, assembly lines, and control systems. In the construction industry, they power breakers, drills, and other heavy equipment. Food processing and electronics sectors benefit from the clean, oil-free air options and precise pressure control. The energy-saving features are particularly valuable for large-scale operations where electricity costs constitute a significant portion of overheads. By reducing energy consumption, businesses can lower their operational costs and contribute to environmental sustainability.
"Our variable frequency screw compressors represent the pinnacle of our engineering prowess," said a Union Technology executive. "We have integrated smart technologies that not only enhance performance but also provide real-time monitoring and diagnostics. This allows our customers to optimize their air usage and prevent unexpected downtime. We are proud to offer a product that delivers both economic and ecological benefits."
Union Technology is committed to continuous improvement, and these compressors come with a note that due to continuous product upgrades, specifications may vary slightly, ensuring customers always receive the most advanced version available. With a global service network and a focus on customer satisfaction, Union Technology is poised to support industries in their transition to more efficient and sustainable air compression solutions.



