ZR and ZT (VSD) screw and gear oil-free air compressors

Oil-free screw air compressors designed for energy efficiency

The well-designed components of the ZR/ZT oil-free screw air compressor reduce the loss and pressure drop to a relatively low level, thereby obtaining higher efficiency. Certified Class 0 oil-free, it provides high air purity at low operating costs and ensures reliability and efficiency.

variable speed drive

Energy costs account for more than 80% of compressor life cycle costs. The advantage is not only that, the generation of compressed air can account for more than 40% of the total electricity bill of the factory. To lower your energy costs, Ingersoll Rand pioneered Variable Speed ​​Drive (VSD) technology. By automatically adjusting the motor speed to meet the actual gas demand, the energy saving can reach up to 35%.

energy recovery

You can turn the compressor into a source of energy. The water-cooled oil-free air compressor can be equipped with an energy recovery device , and up to 94% of the electrical energy is converted into compression heat, helping to achieve the goal of carbon neutrality. Without energy recovery, this heat is lost to the atmosphere through cooling systems and radiation. Energy recovery units use the heat of compression to heat water for sanitary cleaning, space heating or process applications.

Smart technology helps you save energy

Ingersoll Rand compressor monitoring system saves energy by using advanced high-end control algorithms. I delay the second stop function to stop the compressor as much as possible using the air demand data. Dual pressure straps reduce pressure in compressed air systems, e.g. on weekends and night shifts. The Elektronikon controller can be understood as the brain of the compressor, which collects equipment operation data to obtain higher energy efficiency. Reduced sensitivity to dust, a new generation of silent inverters optimizes cooling airflow and enhances overall machine reliability.

Monitoring Compressed Air Systems

Knowing the condition of your compressed air system is important. With Elektronikon you can easily connect your controller with mobile devices such as tablets and smartphones. The SMARTLINK system provides online mobile monitoring of compressed air systems through a secure network, saving money and minimizing breakdowns and production losses.

Get a close look at Ingersoll Rand ZR/ZT oil-free screw air compressors

Over the past sixty years, we have focused on continuous innovation in the field of oil-free air technology and accumulated rich experience. Customers using our products are all over the world. No matter the conditions, our ZR and ZT compressors provide you with certified oil-free compressed air, protecting all your critical processes and products. The difference between the two models, ZR and ZT, is that the ZR is a water-cooled model, while the ZT is an air-cooled model. The pressure levels of both compressors are between 3.5 and 13 bar, and in order to allow you to achieve a higher level of energy saving, we offer you to choose between rotary tooth and screw technology.

For sixty years, we have innovated and accumulated rich experience in oil-free air technology, and our products are used by customers all over the world. No matter the conditions, our ZR and ZT compressors provide you with certified oil-free compressed air, protecting all your critical processes and products. The difference between the two models, ZR and ZT, is that the ZR is a water-cooled model, while the ZT is an air-cooled model. The pressure levels of these two compressors are between 3.5 and 13 bar. In order to allow you to achieve a higher level of energy saving, we provide two technologies for you to choose: rotary tooth type and screw type. Welcome to inquire.

Ingersoll Rand full performance screw and gear oil-free air compressor ZR/ZT (VSD) 

ZR/ZT screw and rotary tooth oil-free air compressors , compact all-in-one high-quality compressed air solutions, are available as Full Feature kits, which include:

• Integrated dryer for space-saving installation
• Variable speed drives (VSDs) that reduce energy costs.

Working principle of oil-free screw air compressor

At present, the air compressors mainly used in the industrial production industry include screw air compressors and centrifugal air compressors. The screw air compressor is more widely used. The screw air compressor is mainly composed of technical equipment such as air intake system, machine head, lubricating oil system, and after-cooling system. The working principle of oil-free screw air compressor consists of suction principle, closed transmission principle, compression principle and exhaust principle. When designing the suction port on the intake side of the screw air compressor, the compression chamber should be able to fully inhale, while the screw air compressor has no intake and exhaust valve groups. Air intake When the main and auxiliary rotors end their air intake, the tooth crests of the main and auxiliary rotors form a closed state with the casing, and the air in the tooth grooves cannot flow out to achieve sealing. When the main and auxiliary rotors continue to rotate, the tooth crests and tooth grooves coincide at the suction end, so that the exhaust end moves to achieve delivery. When the rotor meshing surface is connected to the casing exhaust, the compressed gas pressure is at the highest value, so that the exhaust can be realized.