8bar 132kwtwo Stage Compression Oilless Industrial Rotary Screw Air Compressor

8bar 132kw Two Stage Compression Oilless Industrial Rotary Screw Air Compressor1. Company introduces & advtanges of Tianjin Great Air Compressor Manufacturing :  Tianjin Great Air compressor Co., ltd, is one leading manufacture and exporter of air compressor in Tianjin, China, Founded 1957 years, coving an area of 200000 square meters. Now exporting to more than 120 countries. Has established a huge sales and service network at home and abroad.GREAT' s main products range as blow:-oil-injected rotary screw air compressor(fixed speed, variable speed; medium & low pressure)-portable rotary screw air compressor(diesel powered, electric motor powered)- low pressure screw air compressor- outdoor screw air compressor - oil free screw blower(variable speed)-oil free air compressor( scroll type, dry type, water lubricated type)-air treatment equipment( air dryer, air tanker, filers etc.)All of our machines are designed for high realiable performance, easy maintenance, and maximum energy efficiency.   Our company advantages 1. Over 60 years China professsinal manufacture for air compressor ,An ISO9000 company 2.European standard,China made &factory directly supply 3. Superior porformance &high efficiency with reasonable price 4.Low power consumptions for more output5.Trouble free & cost saving6.Timely pre-sale and after-sale service 7.Easy operatation &maintenance   2. Machine details for   2 stage compression  screw air compressor :3.  Features & advantages for GREAT two stage compression permanent magnet variable frequency oil -less screw air compressor:     1) High efficiency of PM motor: The efficiency of permanent magnet motor is as high as 97%, which is 2-4% higher than that of ordinary frequency conversion motor. Moreover, when the permanent magnet motor operates away from the rated frequency, its efficiency is basically unchanged, and it can still maintain extremely high motor efficiency  2) Motor maintenance-free: The permanent magnet motor has no bearings inside, which eliminates the cost of motor bearing maintenance and replacement. 3)Frequency conversion and energy saving can realize the whole machine frequency conversion operation, according to the user's actual gas demand frequency modulation operation, air compressor energy saving effect is remarkable.4)No transmission loss: the permanent magnet motor and the compressor adopt the embedded integrated shaft directly connected structure, which is more compact in structure. There is no coupling and other transmission parts, and the transmission efficiency is 100%.5)variable frequency start and the soft start of the motor are realized, which greatly reduce the impact on the power grid equipment and do not cause damage to the electrical equipment.6)More wide frequency conversion range: Permanent magnet full-speed air compressor, frequency conversion range from 25% to 100% (ordinary frequency conversion from 50% to 100%), compared with fixed speed air compressor, energy saving up to more than 30%;Compared with the ordinary variable frequency air compressor, the energy saving is about 5%.And the larger the fluctuation of the system gas consumption, the more obvious the energy saving effect.7)Two stage compression unique air end :The two-stage compression oil-less screw machine has a unique design for air end. It combines the first-stage compression rotor and the second-stage compression rotor in a case, and rotates them directly through gears respectively, so that each stage of the rotor can obtain the best linear speed, so that the compression efficiency is higher.8)internal spray curtain cooling method: Two-stage compressed air compressor, using high energy saving internal spray curtain cooling method, good cooling effect, greatly reduce the temperature of compressed air, achieve close to isothermal compression, but also can reduce the pressure loss between the first and second, reduce the compression ratio, improve the compression efficiency9)Reduce internal leakage: Two-stage compression is adopted, which reduces the compression ratio of each compression, reduces the internal leakage from the high pressure end to the low pressure end of each compression, and improves the volume efficiency. 10)Noise reduction: Two-stage compression is adopted, which reduces the compression ratio of each compression and greatly reduces the noise, especially the unloading noise11)Easy to do maintenance and service: Two-stage compressor unit, except the screw air end , other systems and structures of the unit are basically the same as single-stage compression, which brings convenience to the maintenance and use of users12)Reduce energy consumption: Energy-saving two-stage compression screw air compressor can effectively reduce energy consumption. Under the same power, the energy saving should be at least 15%-25% depending on different working conditions.  For users with large amount of gas and continuous gas required, two-stage compressed air compressor should be given prior