Two Stage Air Compressor, Oil-injected Rotary Screw Compressor

Two Stage Air Compressor, Oil-injected Rotary Screw Compressor
Two Stage Air Compressor, Oil-injected Rotary Screw Compressor
Two Stage Air Compressor, Oil-injected Rotary Screw Compressor
Two Stage Air Compressor, Oil-injected Rotary Screw Compressor
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Features
High efficient and energy saving screw air-end
  • The compressor applies a large rotor, which works at a low rotation rate. The precision machining process grants a high rotor profile accuracy, which allows for minimized vibrations and noise. It also improves sealing during the air compressor’s operation.
  • There are two independent compressing units in one air-end. Undertaken by two units together, the combined system grants lower loads for each bearing than a single unit. This allows for better bearings durability.
  • Lubricating oil is separately injected into the air compression chamber and the bearings. Then bearings are then injected with clean lubricating oil for better reliability. As a result, the air-end is granted lower compression ratios, lower leakage and better volumetric efficiency.
High efficient rotor
  • Direct drive large rotor works at low rotation rate, providing good efficiency, low energy cost, and lower inherent leakage;
  • High efficiency, low noise & vibration;
  • Bearings with good efficiency are applied, such as cylindrical roller bearing, angular contact ball bearings, etc.
  • Bearing lifespan ≥ 100,000 hours;
  • Highly accurate rotor profile grants high performance and reliability.
Premium high efficient motor
  • The motor applies heavy-duty SKY bearing with port for lubricating oil injection on the housing, which is convenient for maintenance;
  • IP55 water and dust proof, grants better durability.
Optimized structure
  • Cold and hot air are separately stored in different chambers, which offers better cooling performances. This grants a longer service life for the air compressor.
  • Removable enclosure with premium flame retardant & sound-proof sponge, which grants a lower noise during operation. This also makes installation and maintenance very convenient.
Oil separator installed together with after cooler
  • After cooler is installed next to the oil separator, ensuring reduced installation space & pipeline connection, and high oil separating efficiency.
Atomized oil injection inter-stage cooling design
  • Atomized oil gets injected for inter-stage cooling and lubricating. this omits the inter-stage cooler and decreases pressure loss. This also grants better cooling efficiency, lubrication performance, lower energy cost, and lower maintenance cost.
Oil stop & vent combined valve
  • The oil stop & vent combined valve structure ensures the compressor is running at a light load. This decreases the impact on the power grid and increases motor durability.
  • Helps avoid oil leakage and start-up failure in low-temperature conditions.
  • Simple structure, convenient for connection, stable & reliable.
Energy-saving air inlet control system
  • The air compressor features an up-to-date control system and an integrated design combined with air inlet and outlet function, greatly reducing pipeline connection.
  • Air inlet control system applies unidirectional valve, which turns off automatically when the compressor shuts down or if it stops air supply suddenly. This is to avoid compressed air return and oil-leakage.
  • Along with an intelligent control system and pressure sensor, the air inlet valve offers airflow on/off control, continuously variable pressure control (60%-100%), along with delay start/stop control.
High quality wear parts
  • Air filtering element: with special nano-coating applied, airflow goes through the filtering element without the direction being changed. This lessens pressure loss, and grants better filtering accuracy.
  • Oil separating element: coalescing oil separating element and oil return device ensure that the oil content of outlet air is ≤ 2PPM.
Technical Parameters
Model Power Pressure Mpa Air Displacement m3/min Noise Level Air Outlet Size Dimensions mm LXBXH Weight Oil Volume L
KW dB(A) ('') kg
JF-20AⅡ 15 0.7 2.9 64±2 G1½'' 1620 1000 1320 680 30
0.8 2.8
1 2.4
JF-25AⅡ 18.5 0.7 3.6 65±2 G1½'' 1620 1000 1320 720 30
0.8 3.4
1 2.9
1.3 2.5
JF-30AⅡ 22 0.7 4.2 66±2 G1½'' 1620 1000 1320 800 30
0.8 4.1
1 3.5
1.3 3.2
JF-40AⅡ 30 0.7 6.2 66±2 G2'' 1620 1000 1320 920 30
0.8 6
1 4.9
1.3 4.2
JF-50AⅡ 37 0.7 7.2 68±2 G2'' 2000 1250 1670 1000 62
0.8 7
1 6.3
1.3 5.4
JF-60AⅡ 45 0.7 9.8 70±2 G2'' 2000 1250 1670 1500 62
0.8 9.6
1 7.8
1.3 6.5
JF-75AⅡ 55 0.7 12.6 69±2 G2'' 2000 1250 1670 1600 62
0.8 12.3
1 9.6
1.3 8.6
JF-100AⅡ 75 0.7 17 70±2 G2'' 2700 1600 1840 1750 76
0.8 16.5
10 12.5
1.3 11.2
JF-120AⅡ 90 0.7 19.8 72±2 G1½'' 2700 1600 1840 2600 76
0.8 19.2
1 16.8
1.3 14.5
Model Power Pressure Mpa Air Displacement m3/min Noise Level Air Outlet Size Dimensions mm LXWXH Weight Oil Volume L
KW dB(A) ('') kg
JF-150AⅡ 110 0.7 24 73±2 G1½'' 2700 1600 1840 2760 76
0.8 23.2
1 19.7
1.3 17.6
JF-175AⅡ 132 0.7 28.2 75±2 G3''/DN80 3400 1700 1950 3300 90
0.8 27.7
1 23.5
1.3 19.8
JF-200AⅡ 160 0.7 34.5 75±2 G3''/DN80 3400 1700 1950 3400 90
0.8 33.6
1 30
1.3 23.8
JF-250AⅡ 185 0.7 41 76±2 G3''/DN80 3700 1980 2150 4200 125
0.8 38.6
1 33
1.3 28.6
JF-270AⅡ 200 0.7 44.5 76±2 DN100 3700 1980 2150 4300 125
0.8 43.2
1 38.5
1.3 33
JF-300AⅡ 220 0.7 48.6 79±2 DN100 3700 1980 2150 4400 125
0.8 47
1 41
1.3 38
JF-340AⅡ 255 0.7 55 78±2 DN125 4100 2100 2150   190
0.8 54
1 46
1.3 40
JF-380AⅡ 285 0.8 60 80±2 DN125 4100 2100 2150   190
1 52
1.3 45
JF-430AⅡ 315 0.8 67 80±2 DN125 4100 2100 2150   200
1 63
1.3 51
Note:

Types listed above all apply 380V/50HZ power source, four-pole motor; Start-up: frequency variable or Y-△; All types using 60HZ power source are unlisted.

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