Crownwell Oil-Injected Screw Air Compressors

• Customization: Available
• Lubrication Style: Lubricated
• Power Source: AC Power
• Model NO.: CWD 7-400 & CWD 7-400 PM
• Structure Type: Closed Type
• Installation Type: Stationary Type
• Type: Single Screw Compressor
• Drive Mode: Electric
• Configuration: Stationary
• Material: Cast Iron
• Transport Package: Wooden Case
• Specification: 7.5-400kW / 10-500hp
• Trademark: Crownwell
• Origin: Shanghai, China
• HS Code: 841480
• Production Capacity: 4000units/Month
• Package Size: 180.00cm * 123.00cm * 157.00cm
• Package Gross Weight: 900.000kg

Product Description

 

Crownwell Oil-Injected Rotary Screw Compressors

 CWD 7-400 & CWD 7-400 PM
Power output: 7-400 kW / 10-500 hp
Delivery rate: 0.8-71.2 m3/min / 28-2514 cfm
Pressure range: 7-13 bar / 100-190 psig

CROWNWELL COMPRESSOR - HIGHEST STANDARD

SIMPLICITY BUT NOT SIMPLE

For three generations, customers from mechanical engineering, industry and trade have relied on CROWNWELL know-how when it comes to planning, developing and manufacturing compressed air systems. They are fully aware of the fact that CROWNWELL AIR is more than just ordinary compressed air: utmost safety, outstanding efficiency, excellent quality, maximized flexibility along with dependable service are the ingredients to transform CROWNWELL AIR into air to work with - in China, in Asia and in more than 102 countries around the world.

The III generation, the basis for economical compressed air production

The Know-How
More than decades of know-how in manufacturing for the compressed air market. World wide knowledge in different compressed air applications have guided the development of customer specified stationary screw compressors.

Technical Advancement for your Benefit
The advantage of CROWNWELL lies in its simplified construction. Fewer components are utilized. This means a 60% reduction in main and wearing parts and over 70% fewer pipes and connections. In turn, this greatly reduces the risk of leakages, making the system environmentally friendly. Safe direct drive operation without V-belt transmission.

The CROWNWELL Screw Compressor works in the following way:
Ambient air is drawn through the intake filter and the multifunctional control system into the screw compressor block. This block consists of a pair of screw rotors. The main rotor, driven by an electric motor, takes the secondary rotor with it. The air is drawn in by the rotation of both of the interlocking rotors and is continually compressed. During rotation, coolant is injected into the rotors and forms a hydrostatic film between the main and secondary rotors. The function of the coolant is to seal the rotors, lubricate the bearings and adsorb the compression heat. Before compressed air leaves the compressor ( at 80 ºC approx.) it is separated from the coolant before being cooled in the aftercooler to approx.. 8ºC to 12ºC above the ambient temperature. The coolant then passes to the thermostatic control block and filter, before entering the cooler where it is cooled from approx.. 80ºC down to 50ºC. It is then injected back into the screw compressor block.

Features:
Direct drive via flexible coupling.
Fully encapsulated CROWNWELL screw compressor block.
Standard electric motor Protection Index IP23 and IP54.
User friendly service access.
Top quality, washable, oil resistant sound insulation.
Ready for operation, prewired and fully enclosed.
With operating mode selector switch Automatic-Off-Continuous.
Centrally mounted cooling fan provided for compressed air and lubricant coolers.
Compact and neat cabinet design.

Optional Equipment:
Sense of rotation
Multiple unit control with automatic base load selection
Full motor protection
Mains isolator switch for wall mounting

Beyond these features we offer a wide choice of compressed air accessories in reference to our compressor product range.
Energy Recovery Systems CROWNWELL-THERM
Compressed Air Filters
Compressed Air Dryers
Condensate Traps
Oil-Water Separators
Compressed Air Receivers






Crownwell OIL-INJECTED FIXED SPEED COMPRESSOR
 

TECHNICAL SPECIFICATIONS CWD 7-400
(7.5-400kW / 10-500hp)
 

Model	Motor Power kW / hp	Free Air Delivery m3/min				Noise Level dB(A)	Dimension L * W * H mm	Weight Kg
		7barg	8barg	10barg	13barg
CWD7	7.5 / 10	1.3	1.2	1.0	0.8	66	880*700*920	240
CWD11	11 / 15	1.7	1.6	1.4	1.2	68	1080*750*1000	400
CWD15	15 / 20	2.5	2.3	2.1	1.9	68	1080*750*1000	420
CWD18	18.5 / 25	3.2	3.0	2.7	2.4	68	1280*850*1160	550
CWD22	22 / 30	3.8	3.6	3.2	2.8	68	1280*850*1160	580
CWD30	30 / 40	5.3	5.0	4.5	4.0	68	1280*850*1160	600
CWD37	37 / 50	6.8	6.2	5.6	5.0	68	1400*1000*1290	800
CWD45	45 / 60	8.0	7.3	7.0	5.9	72	1400*1000*1290	850
CWD55	55 / 75	10.1	9.5	8.7	7.8	72	1800*1230*1570	1660
CWD75	75 / 100	13.6	12.8	12.3	10.2	72	1800*1230*1570	1800
CWD90	90 / 125	16.2	15.5	14.0	12.5	72	1800*1230*1570	1900
CWD110	110 / 150	21.2	19.8	17.8	15.5	72	2400*1470*1840	2500
CWD132	132 / 180	24.5	23.2	20.5	17.8	75	2400*1470*1840	2700
CWD160	160 / 215	28.8	27.8	25.0	22.4	75	2400*1470*1840	3000
CWD185	185 / 250	32.5	31.2	28.0	25.8	75	3150*1980*2150	3500
CWD200	200 / 270	36.0	34.3	30.5	28.0	82	3150*1980*2150	4000
CWD250	250 / 350	43.0	41.5	38.2	34.9	82	3150*1980*2150	4500
CWD315	315 / 400	51.0	50.2	44.5	39.5	82	3150*1980*2150	6000
CWD355	355 / 450	64.0	61.0	56.5	49.0	84	3150*1980*2150	6500
CWD400	400 / 500	71.2	68.1	62.8	52.2	84	3150*1980*2150	7200

• Unit performance measured according to ISO 1217, Annex C, Edition 4 (2009)

Reference conditions:
-Relative humidity 0%
-Absolute inlet pressure: 1 bar (a) (14.5 psi)
-Intake air temperature:  20°C, 68°F

• Noise level measured according to ISO 2151:2004, operation at max. operating pressure and max. speed; tolerance: ±3 dB(A)

Crownwell OIL-INJECTED PERMANENT MAGNET COMPRESSOR

TECHNICAL SPECIFICATIONS CWD 7-400 PM
(7.5-400kW / 10-500hp)
 

Model	Motor Power kW / hp	Free Air Delivery m3/min				Noise Level dB(A)	Dimension L * W * H mm	Weight Kg
		7barg	8barg	10barg	13barg
CWD7 PM	7.5 / 10	1.3	1.2	1.0	0.8	66	760*700*920	200
CWD11 PM	11 / 15	1.7	1.6	1.4	1.2	68	980*750*1000	350
CWD15 PM	15 / 20	2.5	2.3	2.1	1.9	68	980*750*1000	360
CWD18 PM	18.5 / 25	3.2	3.0	2.7	2.4	68	1120*850*1160	500
CWD22 PM	22 / 30	3.8	3.6	3.2	2.8	68	1120*850*1160	520
CWD30 PM	30 / 40	5.3	5.0	4.5	4.0	68	1120*850*1160	550
CWD37 PM	37 / 50	6.8	6.2	5.6	5.0	68	1280*1000*1290	750
CWD45 PM	45 / 60	8.0	7.3	7.0	5.9	72	1280*1000*1290	780
CWD55 PM	55 / 75	10.1	9.5	8.7	7.8	72	1800*1230*1570	1600
CWD75 PM	75 / 100	13.6	12.8	12.3	10.2	72	1800*1230*1570	1800
CWD90 PM	90 / 125	16.2	15.5	14.0	12.5	72	1800*1230*1570	1900
CWD110 PM	110 / 150	21.2	19.8	17.8	15.5	72	2400*1470*1840	2500
CWD132 PM	132 / 180	24.5	23.2	20.5	17.8	75	2400*1470*1840	2700
CWD160 PM	160 / 215	28.8	27.8	25.0	22.4	75	2400*1470*1840	3000
CWD185 PM	185 / 250	32.5	31.2	28.0	25.8	75	3150*1980*2150	3500
CWD200 PM	200 / 270	36.0	34.3	30.5	28.0	82	3150*1980*2150	4000
CWD250 PM	250 / 350	43.0	41.5	38.2	34.9	82	3150*1980*2150	4500
CWD315 PM	315 / 400	51.0	50.2	44.5	39.5	82	3150*1980*2150	6000
CWD355 PM	355 / 450	64.0	61.0	56.5	49.0	84	3150*1980*2150	6500
CWD400 PM	400 / 500	71.2	68.1	62.8	52.2	84	3150*1980*2150	7200

• Unit performance measured according to ISO 1217, Annex C, Edition 4 (2009)

Reference conditions:
-Relative humidity 0%
-Absolute inlet pressure: 1 bar (a) (14.5 psi)
-Intake air temperature:  20°C, 68°F

• Noise level measured according to ISO 2151:2004, operation at max. operating pressure and max. speed; tolerance: ±3 dB(A)
• PM-Permanent Magnet

Crownwell TWO-STAGE OIL-INJECTED COMPRESSOR

TECHNICAL SPECIFICATIONS CWD 7-400 PM
(7.5-400kW / 10-500hp)
 

Model	Motor Power kW / hp	Free Air Delivery m3/min				Noise Level dB(A)	Dimension L * W * H mm	Weight Kg
		7barg	8barg	10barg	13barg
CWD15-2S	15 / 20	3.0	2.9	2.4	2.2	68	1480*850*1180	780
CWD18-2S	18.5 / 25	3.6	3.5	2.9	2.5	68	1480*850*1180	800
CWD22-2S	22 / 30	4.2	4.1	3.5	3.2	68	1480*850*1180	820
CWD30-2S	30 / 40	6.5	6.4	4.9	4.2	68	1720*1110*1480	1080
CWD37-2S	37 / 50	7.2	7.1	6.3	5.4	68	1720*1110*1480	1100
CWD45-2S	45 / 60	9.8	9.7	7.8	6.5	72	1720*1110*1480	1120
CWD55-2S	55 / 75	12.8	12.5	9.6	8.6	72	2100*1350*1720	2080
CWD75-2S	75 / 100	17.5	16.5	12.5	11.2	72	2100*1350*1720	2100
CWD90-2S	90 / 125	20.8	19.8	16.9	14.3	72	2460*1700*1900	3280
CWD110-2S	110 / 150	24.5	23.5	19.7	17.6	72	2460*1700*1900	3480
CWD132-2S	132 / 180	30.0	28.0	23.5	19.8	75	2900*1800*2020	3980
CWD160-2S	160 / 215	34.5	33.6	30.0	23.8	75	2900*1800*2020	4280
CWD185-2S	185 / 250	41.0	38.4	32.5	28.6	75	3800*1980*2150	5450
CWD200-2S	200 / 270	44.6	43.0	38.5	32.8	82	3800*1980*2150	5600
CWD220-2S	220 / 300	48.6	47.0	41.0	38.0	82	3800*1980*2150	6500
CWD250-2S	250 / 350	55.0	54.0	46.0	40.0	82	3800*1980*2150	6600

• Unit performance measured according to ISO 1217, Annex C, Edition 4 (2009)

Reference conditions:
-Relative humidity 0%
-Absolute inlet pressure: 1 bar (a) (14.5 psi)
-Intake air temperature:  20°C, 68°F

• Noise level measured according to ISO 2151:2004, operation at max. operating pressure and max. speed; tolerance: ±3 dB(A)
• 2S-Two Stage