Advantages Of
Low Pressure Screw Air Compressor
There are many uses for low-pressure air compressors, including cement, chemical fiber, textile, ceramics, printing and dyeing, glass, petrochemical, surveying, mapping and prospecting. The pressures required by these industries are relatively low, and ordinary air compressors cannot meet the requirements. This requires air compressors to be equipped with pressure-reducing valves to meet the requirements. This will result in a lot of waste. Therefore, in response to this situation, our company has long been Started to develop this low-pressure screw air compressor to output compressed air at a suitable pressure.
The air end specially developed for low-pressure conditions optimizes the screw profile and internal pressure to improve the efficiency of the air end.
Specialized low-pressure air end
- Optimizing the screw profile and internal pressure for the specially developed host for low-pressure working conditions to improve the efficiency of the air end.
- The design idea of “large rotor, large bearing, low speed” is adopted to reduce noise and vibration, and increase the life and stability of the air end.
- Adopt a new type of 5: 6 asymmetrical rotor tooth shape, high-precision three-coordinate measuring machine for comprehensive measurement to ensure screw accuracy and improve stability.
Permanent magnetic synchronous motor
- IP54 protection level is more stable and reliable than IP23 in harsh environments.
- Low temperature-rising design, the motor temperature rising is less than 60K, the efficiency is higher, and the service life of the motor is extended.
- Use ceramic-plated bearings to completely eliminate the effect of shaft current on bearings.
Permanent magnetic synchronous motor
- IP54 protection level is more stable and reliable than IP23 in harsh environments.
- Low temperature-rising design, the motor temperature rising is less than 60K, the efficiency is higher, and the service life of the motor is extended.
- Use ceramic-plated bearings to completely eliminate the effect of shaft current on bearings.
Silent centrifugal fan
- The whole series adopts a centrifugal fan, which is more efficient and energy-saving.
- Compared with axial fans, centrifugal fans have higher air pressure, lower noise, and more energy saving.
- Controlled by a frequency conversion fan, the oil temperature is constant and the service life of lubricating oil is greatly extended.
- Due to the high wind pressure, the cooler and filter are less likely to be blocked.
Three filters
- Air filter: the filter area exceeds 150% of the normal requirement, has low inlet pressure loss, and has high energy efficiency.
- Oil filter: The design of the imported oil filter with enlarged glass fiber material is adopted. The rated processing capacity of the oil filter is ≥3 times of the circulating oil volume. The filtering accuracy is high and the durability is good.
- Oil separator: imported glass fiber material oil core, good filtration effect, low oil core pressure loss.
Two Stage Low-pressure Air Compressor Specification
Single Stage Low-pressure Air Compressor Specification
Frequently Asked Questions
A low pressure screw air compressor is an industrial compressor designed to deliver stable compressed air at a lower working pressure than conventional industrial screw compressors. Sollant low pressure screw air compressors are designed for applications requiring approximately 3–5 bar of compressed air, helping provide the required airflow without unnecessarily operating at a higher pressure.
Sollant low pressure screw air compressors are available for working pressures of approximately 3–5 bar. The actual operating pressure and airflow can be selected according to your production process and application requirements.
Low pressure air compressors are commonly used in industrial processes that require a stable supply of compressed air at relatively low pressure. Typical applications include cement production, textile manufacturing, chemical fiber production, glass manufacturing, ceramics, printing and dyeing, petrochemical processes, and other industrial applications.
The main difference is the pressure range and the way the compressor is optimized for the application. A low pressure screw compressor is specifically designed to efficiently produce compressed air at lower pressure, such as 3–5 bar. If a production process only requires low-pressure air, using a dedicated low pressure compressor can help avoid unnecessarily compressing air to a higher pressure and then reducing the pressure afterward.
The correct compressor should be selected based on several factors, including required working pressure, airflow, operating hours, ambient temperature, installation conditions and application. When requesting a quotation, provide your required pressure and airflow, such as 4 bar and 10 m³/min, and our technical team can recommend a suitable model.
A compressor should be operated as close as practical to the pressure required by the production process. For applications that only need low-pressure compressed air, a dedicated low pressure screw compressor can avoid unnecessary compression to a higher pressure. Overall energy consumption depends on the compressor model, operating pressure, airflow, duty cycle and installation conditions.
Yes. Sollant can evaluate customized low pressure compressed air requirements based on factors such as required pressure, airflow, power supply, ambient conditions, installation environment and application. Contact us with your technical requirements so we can recommend an appropriate configuration.
To receive a quotation, please provide your required working pressure, airflow, application, power supply and destination country whenever possible. For example: 4 bar, 12 m³/min, textile factory, 380 V / 50 Hz. Our sales and technical team can then recommend a suitable low pressure screw compressor and provide pricing information.
