China Industrial Silent Oil Free Direct Drive AC Power Screw Type Air Compressor for Sale

Model :	Oil Free Series
Type:	Dry Oil Free Screw Air Compressor
Voltage:	Dry Oil Free Screw Air Compressor
Working Pressure:	8~12.5bar
Installed Motor Power:	5.5~250 Kw
Capacity:	0.2~44.78 m3/min
Driven Method:	Direct Driven
Power	380V / 3PH / 50HZ / 60HZ 220V / 3PH / 50HZ / 60HZ 440V / 3PH / 50HZ / 60HZ 415V / 3PH / 50HZ / 60HZ Can be customized
Air End:	SKF/SKF
Transport Package:	Standard Wooden Packing
Electrical control system	Schneider
Motor protection grade	IP54
Insulation class	F
Outlet Air Humidity	ambient temperature+10ºC

Product Features
In pharmaceutical, electronic, chemical, microbial fermentation, blow moulding, pressure detection and other industrial production, there are many medium-pressure compressed air to be used to 1.6-4.0 MPa in power plants, naval ships, military and national defense facilities. At present, piston air compressors are mostly used at home and abroad, while piston air compressors are characterized by large vibration, high noise, large leakage and short service life, so their efficiency is very low and the same work is done. The medium pressure oil-free screw machine has compact structure, high working efficiency, low noise, low vibration, easy maintenance, low operating cost and good air quality. At the same time, the series of machines are controlled by micro-computer system. The whole machine has multiple protective performance of pressure, temperature and overload energy.
1.Constant pressure control: high-precision constant pressure control with a pressure fluctuation range within0.01MPa.
2. Variable frequency soft start: remove peak current during starting, avoid the power grid impact, prevent the current impact through gradual speed regulation and improve flexibility;
3.No idling: prevent idling of the compressor during running and reduce invalid energy consumption;
3.High performance vector control: low-frequency starting provides a large torque and a low running current, ensuring to get a reasonable torque to drive the air compressor to run stably with the minimum temperature rise of the motor within a wide speed range;

Model	Working pressure	Capacity	Motor power	Noise dB(A)	Inlet and outlet pipe dia. of cooling water	Cooling water volume	Lubricating water	Dimension(mm)			Net weight
	bar	m3/min	kw/hp			Inlet water temp. 32ºC(T/H)	L	L*W*H			KGS
SGM08	8	1.17	7.5/10	58	3/4"	2	10	800*800*1100(A) 800*800*1100(W)			470
	10	1.05
	12.5	0.81
SGM11	8	1.65	11/15	60	1"	2.5	26	1200*760*1300(A) 1200*760*1300(W)			580
	10	1.42
	12.5	1.10
SGM15	8	2.43	15/20	63	1"	3.5	26	1200*760*1300(A) 1200*760*1300(W)			620
	10	2.17
	12.5	1.80
SGM18	8	3.13	18.5/25	65	1"	4	30	1400*900*1450(A) 1400*900*1450(W)			680
	10	2.82
	12.5	2.05
SGM22	8	3.52	22/30	65	1"	5	30	1400*900*1450(A) 1400*900*1450(W)			730
	10	3.21
	12.5	2.78
SGM30	8	5.12	30/40	67	1 1/2"	7	40	1550*1150*1500(A) 1500*1150*1300(W)			1100
	10	4.43
	12.5	3.63
SGM37	8	6.30	37/50	67	1 1/2"	9	40	1550*1150*1500(A) 1500*1150*1300(W)			1150
	10	5.33
	12.5	4.77
SGM45	8	7.40	45/60	68	1 1/2"	10	90	1800*1300*1750(A) 1800*1300*1680(W)			1390
	10	6.30
	12.5	5.56
SGM55	8	9.60	55/75	70	1 1/2"	12	120	1980*1400*1850(A) 1800*1300*1680(W)			1470
	10	8.55
	12.5	7.67
SGM75	8	13.00	75/100	73	1 1/2"	18	120	2100*1600*1900(A) 1800*1300*1750(W)			2250 1630
	10	11.50
	12.5	9.70
SGM90	8	14.80	90/120	73	1 1/2"	20	180	2400*1600*2000(A) 2200*1550*1800(W)			2650 2350
	10	13.90
	12.5	12.60
SGM110	8	19.85	110/150	78	2"	24	180	2700*1600*2100(A) 2200*1550*1800(W)			2950 2460
	10	16.66
	12.5	15.56
SGM132	8	23.10	132/175	78	2"	30	240	3000*1700*2250(A) 2200*1550*1800(W)			3500 2500
	10	19.97
	12.5	16.90
SGM160	8	28.11	160/200	80	3"	35	240	3000*1800*2100(W)			3700
	10	25.45
	12.5	22.52
SGM185	8	33.97	185/250	80	3"	38	300	3000*1800*2100(W)			3750
	10	29.00
	12.5	25.21
SGM200	8	36.75	200/275	80	4"	42	300	3100*1850*2100(W)			3900
	10	32.78
	12.5	29.24
SGM220	8	39.67	220/300	80	4"	47	360	3100*1850*2100(W)			4200
	10	36.75
	12.5	29.63
SGM250	8	43.50	250/350	80	4"	53	360	3100*1850*2100(W)			4600
	10	39.30
	12.5	34.00
Motor Protection Class:IP54/IP55 or as per your requests.
Voltage: 380V/50Hz/3ph, 380V/60Hz/3ph, 220V/50Hz/3ph, 220V/60Hz/3ph, 440V/50Hz/3ph, 440V/60Hz/3ph, or as per your requests.
In the external dimensions: "A" means air cooling, and "W" means water cooling.

Q1: What is the rotor speed for the air end?
A1: 2980rmp.

Q2: What's your lead time?
A2: usually, 5-7 days. (OEM orders: 15days)
Q3: Can you offer water cooled air compressor?
A3: Yes, we can (normally, air cooled type).

Q4: What's the payment term?
A4: T/T, L/C, Western Union, etc. Also we could accept USD, RMB, and other currency.

Q5: Do you accept customized voltage?
A5: Yes. 380V/50Hz/3ph, 380V/60Hz/3ph, 220V/50Hz/3ph, 220V/60Hz/3ph, 440V/50Hz/3ph, 440V/60Hz/3ph, or as per your requests.
Q6: What is your warranty for air compressor?
A6: One year for the whole air compressor(not including the consumption spare parts) and technical supports can be provided according to your needs.

Q7: Can you accept OEM orders?
A7: Yes, OEM orders are warmly welcome.

Q8: How about your customer service and after-sales service?
A8: 24hrs on-line support, 48hrs problem solved promise.

Q9: Do you have spare parts in stock?
A9: Yes, we do.

Q10: What kind of initial lubrication oil you used in air compressor?
A10: TOTAL 46# mineral oil.

If you are interested in any of our products,please feel free to contact us.

We are looking forward to cooperating,growing and developing with your sincerely.