Customization: | Available |
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Lubrication Style: | Oil-free |
Cooling System: | Air Cooling |
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Poduct Name: Mikovs Mini Stationary Air Compressor |
Model number: ZW-7.5 |
Maximum Pressure:10BAR/145PSI |
Working Pressure: 7 - 10bar (100 - 145psi) |
Air Delivery/capacity: 1 - 1.2m3/min |
Motor Power: 7.5kw/10hp |
Lubricating Water Amount: 20 L |
Rotation Rate : 2940 rpm |
Noise Level: 70 dBA |
Type of Driving: Directly Driven |
Type of Cooling: Air Cooling/Water Cooling |
Dimension: 1135×800×1000 mm |
Weight: 480kg |
Air Outlet Discharge Size: G1" |
Comparison | Water Lubricated oil-free single screw air compressor | Dry oil-free double screw air compressor |
Air Discharge Temp | About 50ºC | About 180-200ºC |
Clearance Volume | Rotor has been used twice through one circulation No clearance volume left |
Rotor has been used once through one circulation Existing clearance volume |
Air Delivery | Ideal isothemal compression,air delivery volume5%-12% more | Energy lost due to hot air discharge |
Efficiency | Normally:59-6.4 kw/(m3/min) | Normally:6.0-6.6 kw(m3/min) |
Air Quality | 100% oil-free | Oil in the gear,high risk of air quality |
Air Purity | Purified by water,clean air after separation | Directly compressed then discharge,containing dust and oil stain |
Structure Balance | Radial and axial loads cancel each other | Radial load is not been balanced |
Noise and Vibration | Simple structure,Low vibration and less noise,Normally:60-65 dB(A) | High frequency noise due to screw grinding,Normally:64-78 dB(A) |
Durability | Rotation speed 3000r/min,theoretically zeao load,long lifetime of screw(30000h),star wheel(50000h) | Rotation speed 18000r/min,high loads on crews,short lifetime of screw(8000-18000h) |
Installation | Only a few spare parts,canbe installed and adjusted separately | Complex construction,needs special technical support for installation |
Maintenance | Only replaced air filter and water filter,easy maintenance and low cost | Many spare parts and less maintenance cycle,high cost |
√ Simple |
One screw rotor and two gate rotors which are positioned at right angle to the axis constitute two compressing rooms. Therefore, the screw rotor with six grooves compresses as many as 12 times per rotation. |
√ Quietness |
Without applying thrust load to the axis direction of the rotor, the force in the circumference direction rotates quietly with good balance. As a result, the load to the bearing is lightened, minimizing the generation of noise or vibration. |
√ Durability |
The gate rotors are rotated following the rotation of the screw rotor along its gear. The water film formed on the screw rotor's gear and the free floating mechanism maintains the high efficiency for a long time (in case of water lubrication). |
√ High Efficiency |
Since the lubrication water is jetted in the compressing process, the compression is done smoothly under almost even temperature, realizing ideal, safe and highly efficient compression with slow rotation (in case of water lubrication). |