| Customization: | Available |
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| After-sales Service: | Online Support |
| Warranty: | 24month |
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315kW 420hp 8 Bar Two-Stage Fixed Speed Rotary Screw Air Compressor
A two-stage compressor is an industrial equipment that compresses air to a higher pressure through a two-stage compression process. This compressor adopts a two-stage compression design, where the first stage compresses the air to an intermediate pressure, and the second stage compresses the air to the final required high pressure. This design has higher efficiency and lower heat generation than single-stage compression.
The working principle of the two-stage compressor is as follows: natural air enters the first stage through the air filter, and after mixing with a small amount of lubricating oil, the gas is compressed to the interstage pressure. Subsequently, the compressed gas enters the cooling channel and contacts a large amount of oil mist to reduce the temperature. The cooled gas enters the second-stage rotor for secondary compression and is finally discharged through the exhaust flange to complete the entire compression process.
Advantages of two-stage compressors
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Model
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RK420AII
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Air capacity
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50.5~65m3/Min 1765~2295cfm |
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Working pressure
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8~13 bar
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Control
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automatic PLC controller
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Driven
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direct driven, elastic coupling
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Coolin
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by air
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Electric motor
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420hp 315kw 380v/50hz/3ph
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Discharge temperature
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less than ambient +8 ºC
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Noise
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less than 80dB(A)
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Air outlet size
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DN125
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Dimension
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4200*2300*2350mm
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Weight
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8000kg
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1.Packing Details: Plywood crate pallet plus foam board and bubble film, Full closed wooden case. 1pcs/each package (for stationary screw air compressor)
2.Shipping method: by sea, by LCL/FCL or as requested
3.Delivery method: FOB, CFR, CIF and EXW etc.
4.Delivery time: in 7-15 days after receiving deposit (customized machines not included)
Q1. Are you trading company or manufacture ?
A: We are professional manufacture of screw air compressor of Taicang,Jiangsu,China. More than 18 years of experience in air compressor manufacturing.
Q2. How long is the delivery time ?
A: For standard voltage ,15 working days. Non-standard ,please contact our sales.
Q3. What's payment term ?
A: T/T, L/C, D/P, Western Union, Paypal, Credit Card, and etc. Also we could accept USD, RMB, Euro and other currency.
Q4. How about your after-sales service ?
A: 1.Provide customers with installation and commissioning online instructions.
2. Well-trained engineers available to overseas service.
3.Worldwide agents and after service avaiable.arrange our engineers to help you training and installation.
Q5. How about your warranty?
A: One year for the whole machine and two years for screw air end, except consumable spare parts.
Q6. Do you have any certificate ?
A: Yes, per different customer's market need ,we can offer CE ,ISO etc certificate.
Q7. What about the maintenance ?
A: First maintenance need to be done after 500Hours, and then every 2000-3000 hours to do the normal maintenance, and consider the actual environment.
Q8. How do you control quality ?
A: 1. The raw materials are strictly inspected
2. Some key parts are imported from overseas
3. Each compressor must pass at least 5 hours of continuous testing before leaving the factory.
Q9. Do you offer OEM service ?
A: Yes.Both OEM & ODM service can be accepted.
Q10.How long could your air compressor be used?
A: Generally, more than 10 years.
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