Home > Air-Compressors >

Water Lubricated Silent Oilless Air Compressor screw oil free air compressor

Categories Oil free screw air compressors
Model Number: MB-10A
Certification: CE
Place of Origin: CHINA
MOQ: 1unit
Price: usd2256
Payment Terms: L/C, T/T, Western Union
Supply Ability: 600units/month
Delivery Time: 5-20days
Packaging Details: plywood case
name: screw air compressor
cooling: by air
voltage: 220v/380v/400v
Motor Power: 5~37(Kw)
  • Product Details
  • Company Profile

Water Lubricated Silent Oilless Air Compressor screw oil free air compressor


We also offer oil free screw air end, and technical support for design and assembling oil free air end.

100% oil free water injection screw air compressor for medicine production and package use

From the production of tablets to the application of preservatives, during filling and dosing. Compressed air is usually in direct contact with the product or package. Zero-grade oil-free air prevents oil from being transferred directly to the product. For process-grade aseptic air requirements, zero-grade oil-free air is essential. Royal machinery Zero-grade 100% technology Reduced product safety issues.

8bar direct drive oil free screw air compressor

  • Model No.: RMW-215A
  • Air capacity: 2.4m3/min @ 8bar; 2.12m3/min @ 10bar.
  • Power: 160kw/215hp
  • Lubricant water volume: 300 Liters/min
  • Way of cooling: Water cooling
  • Air outlet connect: DN100
  • Weight: 4500kg
  • Dimension: 2860x1500x1750mm
  • Inlet temperature: atmospheric pressure 2-40℃
  • Outlet temperature: Cooling water temp.+14℃
  • Voltage: 380v/415v/220v-3p-50hz/60hz are available
  • Inverter and permanent magnet motor are available also

explosion view

Product Description


High reliability of oil free screw air compressor

  • Oil free screw compressor applies rotary single screw air-end.
  • By being in market every since 1982, it has undergone practical for over 30 years, all of it’s air quality, power saving and high reliability features have turned out to be state of the art in design and performance.
  • Air and water are becoming a major trend in compressor market due to their high compatibility, availability, reliability and environment friendliness.


High efficiency (lubricated water)

  • Lubricant water functions
  • Serves as sealant, coolant and lubricant.
  • Sealing function reduces/seals “blow hole” between rotors and housing to absolute minimum, ensuring efficient compression with delivered air volume per horse power increased by 15% as compared to general dry-type screw units.
  • Lubricant water also very effectively absorbs and dissipates heat generated during compression process.


Near isothermal compression(oil free water lubricant screw air compressor):

  • Thermal energy and water film, arising from the compressed air cooled by the lubricant water that has being injected into the compression chamber, seals up rotor gaps to prevent air back flow. The ideal isothermal compression thus achieves optimum efficiency. Theoretically, when air at 20℃ is compressed to 7kg/cm2G in a thermal isolation process, the discharge air temperature will be over 250℃, injection of lubrication water that has a cooling effect, into the compression chamber will bring the temperature down to about 40℃, achieving high efficiency ideal isothermal compression.


Oil free water lubricant screw air compressor--Technical parameters

ModelWay of TransmissionAir flow /PressurePower

Lubricated water


Cooling water volumeWay of CoolingSpeedOutlet sizeWeightDiemention (mm)
RMW-40ACoupling5.0/84.2/10304040Air2940G1 1/2"980195010501432
RMW-50ACoupling6.1/85.22/10375040Air2940G1 1/2"1000215013001590

Welcome to know more about water injection screw air compressor:youshi10 (1)

Photos: Oil free water lubricant screw air compressor


spare parts

We designed and manufacture oil free screw air end by own factory:

air end

Air cooling oil free screw air compressor flow chart:

Air cooling

Water cooling oil free screw air compressor flow chart:

water cooling

Application--oil free water lubricant screw air compressor:

  1. Food industry
  2. Fermentation
  3. Cleaning
  4. PET, Transport
  5. Medical industry etc.
Our Services

Long interval maintenance periods:

Nearly ideal isothermal compression, direct driven method, smart configuration and precision component design and machining, long bearing service life, all of the above essentially extends interval between regular periodical maintenance.

Company Information

Shanghai Royal Machinery Co.,Ltd is a high-tech enterprise which specialized in sales and service of compressed air system equipment, and after-treatment equipment, booster compressor, diesel generator and drying equipment, etc.

We have an experienced team. It not only provide high-quality and high-efficiency compressors for users but also provide the best solution for air system equipment during before-sale, selling and after-sale.

Welcome to contact us for inquires and quotation.

Packaging & Shipping

All of our screw air compressors are packed by export standard plywood case:


Because of screw air compressor package volume and weight, most of our screw air compressors are shipped by sea.

download.jpg u=4.jpg

Quality Water Lubricated Silent Oilless Air Compressor screw oil free air compressor for sale
Send your message to this supplier
To: Shanghai Royal Machinery Co.,Ltd
Characters Remaining: (0/3000)
Inquiry Cart 0
  • Haven't found right suppliers
  • Our buyer assistants can help you find the most suitable, 100% reliable suppliers from China.
  • And this service is free of charge.
  • we have buyer assistants who speak English, French, Spanish......and we are ready to help you anytime!
  • Submit Buying Request
    Contact Us Quickly