How can we help you?

image
Click to enlarge
Back to the product list

Oil-free Compressed Air System Solution Sierra 37-150kW

•Hybrid Permanent Magnet Motor
•Durable & Lasting Compression Module
•Excellent Reliability of Cooling Unit
•UltraCoat Super Coating
•Advanced Intelligent Control System
•Outstanding Sealing Technology 
•High Efficient Inlet Valve

Features

  • Precise Winding

The winding of hybrid permanent magnet motor of Sierra oil-free air compressor is directly wound on the convex structure simply and reliably to eliminate low efficiency &heat concentration (oen leading to motor insulation layer destruction and other faults) of ordinary induction motor. While repairing a conventional air compressor may result in shutdown for days or weeks and certain rental cost, and rewinding coils or replacing bearings will cost a lot of manpower and material resources, Sierra stators can be replaced quickly and costs less than replacing motor windings. 

  • Newly upgraded hybrid permanent magnet motor with no bearings or wear parts

While starting the motor of a conventional air compressor may consume a lot of energy with the starting current usually being up to 8 times of the normal operating current at full load, the hybrid permanent magnet motor of Sierra guarantees that the starting current is less than 100% of the load current, and thus eliminates the impact of air compressor start on the grid and saves energy.

Sierra requires no unloading, but simply lowers the screw speed to accommodate any changes in displacement. Sierra adopts a shutdown mode simpler than the unloading mode of other air compressors. Also, Ingersoll Rand's unique super coating and hybrid permanent magnet motor makes Sierra oil-free screw air compressor to be reliable, and save at least 30% energy over the conventional oil-free screw air compressors.

 

Model Specifications

50Hz(37-150kW)

Motor power
S L7 .ObargFAD [email protected](g)
SM 8. 5bargFAD [email protected](g)
SH1ObargFAD [email protected](g)
Width
Length
Height
Weight
kW
m³/min
m³/min
m³/min
mm
mm
mm
kg
37
6.00
5.10/5.20*
--
1372
2248
1917
2387/2410*
45
7.70
6.50
--
1372
2248
1917
2497/2520*
55
9.60
8.80
7.70/7.80*
1372
2248
1917
2577/2600*
75
12.70
11.60/11.70*
10.70/10.80*
1372
2248
1917
2682/2705*
90
16.10
13.60
13.00
1588
2692
2374/1840*
3270/3425*
110
19.40
18.00
15.40
1588
2692
2374/1840*
3350/3505*
132
22.80
21.40
18.80
1588
2692
2374/1840*
3400/3555*
150
25.90
24.60
22.10
1588
2692
2374/1840*
3450/3605*

60Hz(50-200hp)

Motor power
Model LFAD flow@100 psi(g)
Model HFAD flow@125 psi(g)
Model HIHFAD flow@15 D psi(g)
Width
Length
Height
Weight
hp
cfm
cfm
cfm
in
in
in
lb
50
216
186
--
54
88.5
75.4
5111
60
286
232
--
54
88.5
75.4
5364
75
336
290
268
54
88.5
75.4
5364
100
424
411
378
54
88.5
75.4
5500
125
586
524
477
62.5
106
93.3/72.5*
6437/6709*
150
691
691
566
62.5
106
93.3/72.5*
6452/6724*
200
912
855
760
62.5
106
93.3/72.5*
7099/7385*
* Values for air-cooled / water-cooled unit
  • Precise Winding

The winding of hybrid permanent magnet motor of Sierra oil-free air compressor is directly wound on the convex structure simply and reliably to eliminate low efficiency &heat concentration (oen leading to motor insulation layer destruction and other faults) of ordinary induction motor. While repairing a conventional air compressor may result in shutdown for days or weeks and certain rental cost, and rewinding coils or replacing bearings will cost a lot of manpower and material resources, Sierra stators can be replaced quickly and costs less than replacing motor windings. 

  • Newly upgraded hybrid permanent magnet motor with no bearings or wear parts

While starting the motor of a conventional air compressor may consume a lot of energy with the starting current usually being up to 8 times of the normal operating current at full load, the hybrid permanent magnet motor of Sierra guarantees that the starting current is less than 100% of the load current, and thus eliminates the impact of air compressor start on the grid and saves energy.

Sierra requires no unloading, but simply lowers the screw speed to accommodate any changes in displacement. Sierra adopts a shutdown mode simpler than the unloading mode of other air compressors. Also, Ingersoll Rand's unique super coating and hybrid permanent magnet motor makes Sierra oil-free screw air compressor to be reliable, and save at least 30% energy over the conventional oil-free screw air compressors.

 

50Hz(37-150kW)

Motor power
S L7 .ObargFAD [email protected](g)
SM 8. 5bargFAD [email protected](g)
SH1ObargFAD [email protected](g)
Width
Length
Height
Weight
kW
m³/min
m³/min
m³/min
mm
mm
mm
kg
37
6.00
5.10/5.20*
--
1372
2248
1917
2387/2410*
45
7.70
6.50
--
1372
2248
1917
2497/2520*
55
9.60
8.80
7.70/7.80*
1372
2248
1917
2577/2600*
75
12.70
11.60/11.70*
10.70/10.80*
1372
2248
1917
2682/2705*
90
16.10
13.60
13.00
1588
2692
2374/1840*
3270/3425*
110
19.40
18.00
15.40
1588
2692
2374/1840*
3350/3505*
132
22.80
21.40
18.80
1588
2692
2374/1840*
3400/3555*
150
25.90
24.60
22.10
1588
2692
2374/1840*
3450/3605*

60Hz(50-200hp)

Motor power
Model LFAD flow@100 psi(g)
Model HFAD flow@125 psi(g)
Model HIHFAD flow@15 D psi(g)
Width
Length
Height
Weight
hp
cfm
cfm
cfm
in
in
in
lb
50
216
186
--
54
88.5
75.4
5111
60
286
232
--
54
88.5
75.4
5364
75
336
290
268
54
88.5
75.4
5364
100
424
411
378
54
88.5
75.4
5500
125
586
524
477
62.5
106
93.3/72.5*
6437/6709*
150
691
691
566
62.5
106
93.3/72.5*
6452/6724*
200
912
855
760
62.5
106
93.3/72.5*
7099/7385*
* Values for air-cooled / water-cooled unit