First, the technical principle and structural differences
oil free scroll compressor adopts the relative motion of static and dynamic scroll disk volume compression, through the involute scroll disk mesh to form the compression chamber, the core component for the graphite or ceramic-coated scroll disk, the movement of the non-reciprocating friction, the vibration value is usually less than 1.5mm / s. The oil-free screw compressor relies on the yin and yang rotor mesh compression, the ZAKF screw compressor supplier. ZAKF screw compressor supplier's rotor using German five-axis machining centers, tooth precision of ± 0.002mm, tungsten carbide coating on the surface of the high speed rotation (3000-6000rpm) under the wear and tear, radial clearance control at 0.03-0.05mm to ensure that the seal.
Comparison of Performance Parameters
Discharge Capacity and Pressure Range
oil free scroll compressor focuses on small and medium flow scenarios, with a discharge capacity of 0.5-5m³/min and an upper pressure limit of about 1.0MPa, which is suitable for laboratories, medical equipment, and other small-load requirements. On the other hand, the ZAKF screw compressor supplier's range of models covers displacements from 5 to 100 m³/min, with high-pressure models up to 1.6 MPa, such as a 10 m³/min, 1.2 MPa oil-free screw for a chemical project, which meets the high-pressure requirements for the transportation of process gases.
Energy Efficiency and Load Adaptability
scroll compressors are more efficient at partial loads (20%-100%), such as a model with an IE4 motor with a specific power of 5.2kW/m³/min, which is suitable for scenarios with fluctuating gas consumption. ZAKF screw compressor supplier's two-stage compressor model has an outstanding performance with a specific power of ≤4.6kW/m³/min at continuous full load, which is used in the 24-hour coating line of an automobile factory. A 24-hour spraying line in an automobile factory saves more than 200,000 kWh per year by adopting this model.
Maintenance cycle and life
scroll compressor maintenance is simple, every 2,000 hours to replace the filter element, 5,000 hours to check the scroll disk, the overall life of> 30,000 hours. ZAKF screw compressor supplier equipment needs to be replaced every 4,000 hours of the oil separator core, 8,000 hours to check the rotor lash, thanks to tungsten carbide coating technology, the overhaul cycle can be extended to more than 40,000 hours, an electronics factory using the ZAKF model of continuous operation of continuous operation of the spraying line, the annual power savings of more than 200,000 kWh. The ZAKF model used in an electronics factory has been running continuously for 3 years without failure.
Third, the suitability of industry application scenarios
In the medical and pharmaceutical fields, the oil free scroll compressor is suitable for hospital operating rooms and clean rooms of pharmaceutical companies with its ≤ 65dB silent design and ISO 8573-1 Class 0 certification; while the centralized gas supply system designed by ZAKF screw compressor supplier for a large pharmaceutical plant adopts a 15m³/min oil-free screw machine with multi-stage filtration, which is suitable for the centralized gas supply of a large pharmaceutical factory. The ZAKF screw compressor supplier designed a centralized gas supply system for a large pharmaceutical factory, using a 15m³/min oil-free screw compressor with multi-stage filtration to meet the high-flow oil-free requirements of GMP workshops.
In the electronics and semiconductor industries, ultra-clean vacuum scenarios (e.g. chip packaging) commonly use scroll compressors with ULPA filters to achieve oxygen content <1ppm; however, in the main gas supply system of the semiconductor production line, the ZAKF screw compressor supplier provides a 20m³/min model, which stabilizes the air pressure through the intelligent joint-control system to ensure the continuous supply of precision equipment such as photolithography machines.
In the food and beverage industry, the oil free scroll compressor is suitable for small-scale production lines due to its oil-free and pollution-free characteristics. The ZAKF screw compressor supplier has created a solution for a beverage giant, combining the screw compressor with a refrigerated dryer, so that the dew point of the air source is ≤ -40℃, which can satisfy the strict requirements of the aseptic filling line.
Fourth, ZAKF screw compressor supplier selection advice
gas volume decision-making: when the volume of gas <5m³/min, you can give priority to the scroll compressor; if > 5m³/min (such as the factory's main gas source), ZAKF screw compressor large-displacement models are more cost-effective, a machining plant to choose the ZAKF 10m ³/min model, the stability of the gas supply to enhance the 90%.
Pressure requirements: For high pressure scenarios (e.g. laser cutting) exceeding 1.0MPa, screw compressors must be selected. ZAKF's high pressure models are ASME certified and are suitable for industrial grade high pressure applications.
Special applications: ZAKF's ATEX certified screw compressors are available for chemical and explosion-proof environments; at high altitudes (e.g. >3000 meters), ZAKF screw compressors are designed to maintain 90% of the exhaust efficiency of the booster compressor, whereas scroll compressors suffer a significant performance degradation in this scenario.
While the oil free scroll compressor is a quiet, small volume compressor for laboratory and medical applications, the ZAKF screw compressor supplier's products have become the mainstream choice for industrial air supply due to their high displacement, high pressure and high reliability. Users can combine ZAKF's customized solutions (e.g. dual parallel redundancy systems) to efficiently match air supply equipment with air volume, pressure, load characteristics and industry standards. For energy efficiency simulations and investment analysis for specific applications, contact the technical team of your ZAKF screw compressor supplier for full-cycle support from selection to after-sales.
