Rotary Screw Compressor:

A screw compressor is a type of rotary compressor which compresses air due to screw action. The main advantage of using this compressor is that it can supply compresses air continuously with minimum fluctuation in delivery pressure. It is usually applied for low pressure applications from 6bar to 13bars.

Working:

The basic principle of a screw compressor is as the male and female rotors are rotating in opposite direction they draw air in between them. As the air progresses along the rotors the air is compressed as the volume space between the rotors decreases, hence creating compressed air that is displace to the outlet.

Screw Compressor:

Technical Specification:

Columbia make Rotary Air Cooled Screw Compressor with Microprocessor controlled system with AI program

Model

Power

F A D

Pressure

Noise

Air

Receiver

End Pipe

Size

Weight

(Kgs)

Dimensions

L x W x H (mm)

kW

hp

cfm

lpm

Bar

psi

dB (A)

CRSC 50

3.7

5.0

21

594.51

8

116

61

250 ltrs

3/4” BSP

BM:115 TM:210 TMD:220

BM:675x550x815

TM:1760x550x1430

18

509.58

10

145

61

250 ltrs

3/4” BSP

BM:115 TM:210 TMD:240

BM:675x550x815

TM:1750x550x1430

CRSC 75

5.5

7.5

25

707.75

8

116

64

300 ltrs

3/4” BSP

BM:130 TM:260 TMD:240

BM:675x550x875

TM:1930x550x1430

22

622.82

10

145

64

300 ltrs

3/4” BSP

BM:130 TM:260 TMD:240

BM:675x550x875

TM:1930x550x1430

*CRSC 100

7.5

10

44

1245.64

8

116

64

500 ltrs

1.0” BSP

BM:160 TM:345 TMD:390

BM:825x550x916

TM:2100x550x1570

35

990.85

10

145

64

500 ltrs

1.0” BSP

BM:160 TM:345 TMD:220

BM:825x550x916

TM:2100x550x1570

28

792.68

12

174

64

500 ltrs

1.0” BSP

BM:160 TM:345 TMD:390

BM:825x550x916

TM:2100x550x1570

*CRSC 150

11

15

63

1783.53

8

116

65

500 ltrs

1.0” BSP

BM:310 TM:495 TMD:540

BM:950x770x1120

TM:2100x770x1760

55

1557.05

10

145

65

500 ltrs

1.0” BSP

BM:310 TM:495 TMD:540

BM:950x770x1120

TM:2100x770x1760

45

1273.95

12

174

65

500 ltrs

1.0” BSP

BM:310 TM:495 TMD:540

BM:950x770x1120

TM:2100x770x1760

*CRSC 200

15

20

83

2349.73

8

116

72

500 ltrs

1.0” BSP

BM:330 TM:515 TMD:570

BM:950x770x1120

TM:2100x770x1760

74

2094.94

10

145

72

500 ltrs

1.0” BSP

BM:330 TM:515 TMD:570

BM:950x770x1120

TM:2100x770x1760

64

1811.84

12

174

72

500 ltrs

1.0” BSP

BM:330 TM:515 TMD:570

BM:950x770x1120

TM:2100x770x1760

also available in *VFD, Base Mount

Benefits of Permanent Magnetic Motor

The benefits of PERMANENTMAGNET field-excited motors over electromagnetically-excited motors include:

• Higher efficiency since no electrical energy is used or losses incurred for developing or maintaining the motor’s magnetic field
• Higher torque and power density
• Linear torque speed characteristics that more predictable
• Better dynamic performance due to higher magnetic flux density in air gap
• Simplified construction and essentially maintenance free
• More compact size
• Less bearing current due to large air gap
• Low temperature due to less rotor losses
• Ramp up time-shorter, constant power up to maximum speed

Technical Specification:

Columbia make Screw Compressor with Permanent Magnetic Motor with Variable Frequency Drive Machine

Model

Power

F A D

Pressure

Noise

RPM

Mount

Air Outlet

inch

Dimensions

L x W x H (mm)/ Kgs

kW

hp

cfm

lpm

Bar

psi

dB (A)

CRSC

PM 15

11

15

65.34

1849.77

8

116

62±2

3000

Base

G3/4”

1080x750x100/ 247

49.44

1399.64

10

145

46.27

1309.90

13

188.5

CRSC

PM 20

15

20

85.07

2408.33

8

116

62±2

3000

Base

G3/4”

1080x750x1000/ 254

70.64

1999.81

10

145

60.04

1699.73

13

188.5

CRSC

PM 25

18.5

25

113.02

3199.59

8

116

62±2

3000

Base

G1”

1450x950x1350/ 320

95.36

2699.64

10

145

77.70

2199.68

13

188.5

CRSC

PM 30

22

30

134.21

3799.48

8

116

68±2

3000

Base

G1”

1450x950x1350/ 350

113.02

3199.59

10

145

98.90

2799.85

13

188.5

CRSC

PM 40

30

40

183.66

5199.41

8

116

72±2

3000

Base

G1 ½”

1620x1120x1450/ 495

137.75

3899.70

10

145

123.62

3499.68

13

188.5

CRSC

PM 50

37

50

240.17

6799.21

8

116

72±2

3000

Base

G1 ½”

1620x1120x1450/ 515

190.73

5399.56

10

145

137.75

3899.70

13

188.5

CRSC

PM 60

45

60

282.56

7999.27

8

116

72±2

2940

Base

G1 ½”

1920x1370x1800/ 1580

247.24

6999.36

10

145

215.45

6099.39

13

188.5

CRSC

PM 75

55

75

370.86

10499.5

8

116

75±2

2940

Base

G2”

1920x1370x1800/ 1680

307.28

8699.09

10

145

264.90

7499.31

13

188.5

CRSC

PM 100

75

100

480.35

13598.7

8

116

75±2

2940

Base

G2”

1800x1250x1600/ 1760

409.71

11598.8

10

145

346.13

9798.94

13

188.5

CRSC

PM 120

90

120

575.71

16298.3

8

116

75±2

2940

Base

G2 ½”

2000x1250x1670/ 1860

515.67

14598.6

10

145

434.43

12298.7

13

188.5

CRSC

PM 150

110

150

716.99

20297.9

8

116

78±2

2940

Base

G2 ½”

2300x1470x1840/ 2600

600.44

16998.4

10

145

515.67

14598.6

13

188.5

CRSC

PM 175

132

175

883.00

24997.7

8

116

78±2

2940

Base

G2 ½”

2300x1470x1840/ 2680

706.40

19998.1

10

145

635.76

17998.3

13

188.5

CRSC

PM 200

160

200

956.63

27082.2

8

116

78±2

2940

Base

G3”

2500x1470x1840/ 2800

801.31

22685.0

10

145

709.93

20098.1

13

188.5

Contact Columbia Air Compressors Technical Advisor for proper sizing of systems to meet your air flow and air pressure requirements