Shanghai Royal Machinery Co.,Ltd

Air compressors, air dryer, tank , line filters and other related compressed air machine supplier

22kw Oil-free screw air compressor

Product Description:

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-30A
Air capacity: 3.5m3/min @ 8bar; 3.13m3/min @ 10bar.
Power: 22kw/30hp
Lubricant water volume: 27 Liters/min
Way of cooling: Water cooling
Air outlet connect: G1"
Weight: 870kg
Dimension: 1950x1050x1430mm
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

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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.

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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.

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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.

structure

Oil free water lubricant screw air compressor--Technical parameters

Model	Way of Transmission	Air flow /Pressure		Power		Lubricated water volume	Cooling water volume	Way of Cooling	Speed	Outlet size	Weight	Diemention (mm)
Model	Way of Transmission	m3/min/bar		KW	HP	L/min	L/min	Way of Cooling	rpm	Outlet size	Kg	L	W	H
RMW-10A	Coupling	1.16/8	1.04/10	7.5	10	27		Air	2930	G1''	500	1300	800	1300
RMW-15A	Coupling	1.56/8	1.36/10	11	15	27		Air	2930	G1''	540	1300	800	1300
RMW-20A	Coupling	2.4/8	2.12/10	15	20	27		Air	2930	G1''	650	1600	910	1350
RMW-25A	Coupling	3.1/8	2.62/10	18.5	25	27		Air	2940	G1''	840	1600	910	1350
RMW-30A	Coupling	3.5/8	3.13/10	22	30	27		Air	2940	G1''	870	1950	1050	1432
RMW-40A	Coupling	5.0/8	4.2/10	30	40	40		Air	2940	G1 1/2"	980	1950	1050	1432
RMW-50A	Coupling	6.1/8	5.22/10	37	50	40		Air	2940	G1 1/2"	1000	2150	1300	1590
RMW-60A	Coupling	7.3/8	6.13/10	45	60	40		Air	2960	G2''	1060	2150	1300	1590
RMW-75A	Coupling	9.6/8	8.6/10	55	75	100	150	Water	2960	G2''	1250	2150	1300	1590
RMW-100A	Coupling	12.5/8	11.42/10	75	100	100	200	Water	2960	G2''	1480	2150	1300	1590
RMW-125A	Coupling	16.3/8	14.52/10	90	125	180	250	Water	2970	DN80	2030	2550	1400	1605
RMW-150A	Coupling	19.4/8	16.9/10	110	150	200	270	Water	2970	DN80	2450	2550	1400	1605
RMW-175A	Coupling	22.21/8	20.38/10	132	175	240	320	Water	2970	DN80	2850	2550	1400	1605
RMW-215A	Coupling	25.0/8	24.0/10	160	215	280	360	Water	2970	DN100	3500	2800	1850	2000
RMW-250A	Coupling	28.0/8	25.0/10	185	250	280	360	Water	2970	DN100	4000	2800	1850	2000
RMW-270A	Coupling	33.0/8	27.0/10	200	270	320	400	Water	2970	DN100	4500	2800	1850	2000
RMW-340A	Coupling	41.0/8	38.0/10	250	340	320	400	Water	2970	DN100	5000	2800	1850	2000

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:

Food industry
Fermentation
Cleaning
PET, Transport
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.