High-performance reciprocating compressors N-series boosters

Your ticket to high-pressure performance

The N-series boosters are available with one, two or three cylinders and operate within the following performance parameters:

  • 3 - 60 hp
  • Initial pressure up to 190 psig – discharge pressure up to 650 psig
  • Flow rate: 9.5– 724 cfm

Your advantages

  • Continuous high-pressure operation:
    Innovative features such as oil pressure lubrication and intensified cylinder cooling ensure both long service life and low maintenance requirements as well as continuous system-compatible maximum pressure of 650 psig.
  • Exceptionally low oil requirement:
    The high quality cylinders are plateau-honed and feature an extra layer of wear protection. These details ensure low oil consumption over the entire service life.
  • For especially cool compressed air:
    The compressed air aftercoolers on the three-cylinder boosters are equipped with separate fans, which ensure low compressed air discharge temperatures. The boosters can be additionally equipped with water-cooled aftercoolers to attain even lower temperatures.
Energy cost savings
Life-cycle costs

High quality premium efficiency electric motors deliver unparalleled efficiency for remarkably low power consumption. Their low operating temperature provides an added advantage.

 

Product details

Versions

For lower demand

N 60 G to N 153 G boosters, air-cooled

The smaller models in this range are best suited to applications where low flow rates are needed at pressures up to 580 psig. These compressors are equipped with one- or two-cylinder compressor blocks and are driven by high efficiency motors with up to 5 hp capacity. The quality of these units is second to none as all compressor blocks are designed, manufactured and assembled by KAESER.

For medium to large demand

N 253 G to N 502 G boosters, air-cooled

When greater air flow rates are needed at pressures up to 650 psig then the mid-size and larger of the Kaeser booster models are the natural choice. At the heart of every one of these powerhouses is a precision machined two- or three-cylinder compressor block that delivers exceptional efficiency. Premium-efficiency electric drive motors up to 25 hp provide optimal energy efficiency.

N 2001 G booster, air-cooled

The N 2001 G air-cooled versions are equipped with a separate fan-assisted aftercooler to keep the temperature differential between the inlet and compressed air (ΔT) within close tolerances. To ensure optimal cooling performance with a ΔT value of only approximately 5 K even at high ambient temperatures, the N 2001 G models can be equipped with a water-cooled compressed air aftercooler.

Sample layout
Component layout of a compressed air station with boosters up to 45 bar
  1. Rotary screw compressor
  2. Air receivers
  3. Booster
  4. High-pressure air receiver
  5. High-pressure refrigerated dryer
  1. Pneumatic tools
  2. Low pressure network up to 190 psig
  3. Prefilter
  4. High-pressure microfilter
  5. Compressed air network at 650 psig

Compressed air system with booster up to 650 psig

Technical specifications N 60-G

Standard version

ModelN 60 75/290 psig N 60 110/435 psig N 60 145/500 psig
Inlet pressure psig 75 110 145
Outlet pressure psig 290 435 500
Flow rate Complete system at working pressure acfm 10 14 19
Intake volume cfm 15 20 26
Piston displacement cfm 2 2 2
Compressor block / airend speed Label [Common - Unit RPM] is missing 1,150 1,150 1,150
Number of pistons Label [Common - Unit ] is missing 1 1 1
Nominal motor output hp 3 3 3
Sound pressure level dB(A) 74 74 74
Compressed air connection, inletNPT 1/2 NPT 1/2 NPT 1/2
Compressed air connection, outletNPT 1/2 NPT 1/2 NPT 1/2
Dimensions W x D x H in 36.2 x 17.7 x 21.6 36.2 x 17.7 x 21.6 36.2 x 17.7 x 21.6
Weight lb 154 154 154

ModelN 60 190/500 psig
Inlet pressure psig 190
Outlet pressure psig 500
Flow rate Complete system at working pressure acfm 27
Intake volume cfm 33
Piston displacement cfm 2
Compressor block / airend speed Label [Common - Unit RPM] is missing 1,150
Number of pistons Label [Common - Unit ] is missing 1
Nominal motor output hp 3
Sound pressure level dB(A) 74
Compressed air connection, inletNPT 1/2
Compressed air connection, outletNPT 1/2
Dimensions W x D x H in 36.2 x 17.7 x 21.6
Weight lb 154

Technical specifications N 153-G

Standard version

ModelN 153 75/290 psig N 153 110/215 psig N 153 145/215 psig
Inlet pressure psig 75 110 145
Outlet pressure psig 290 215 215
Flow rate Complete system at working pressure acfm 21 37 49
Intake volume cfm 33 45 58
Piston displacement cfm 5 5 5
Compressor block / airend speed Label [Common - Unit RPM] is missing 650 650 650
Number of pistons Label [Common - Unit ] is missing 2 2 2
Nominal motor output hp 5 3 3
Sound pressure level dB(A) 74 74 74
Compressed air connection, inletNPT 3/4 NPT 3/4 NPT 3/4
Compressed air connection, outletNPT 1/2 NPT 1/2 NPT 1/2
Dimensions W x D x H in 54.7 x 28.3 x 32.3 54.7 x 28.3 x 32.3 54.7 x 28.3 x 32.3
Weight lb 562 562 562

ModelN 153 145/580 psig N 153 190/580 psig
Inlet pressure psig 145 190
Outlet pressure psig 580 580
Flow rate Complete system at working pressure acfm 32 47
Intake volume cfm 58 74
Piston displacement cfm 5 5
Compressor block / airend speed Label [Common - Unit RPM] is missing 650 650
Number of pistons Label [Common - Unit ] is missing 2 2
Nominal motor output hp 5 5
Sound pressure level dB(A) 74 74
Compressed air connection, inletNPT 3/4 NPT 3/4
Compressed air connection, outletNPT 1/2 NPT 1/2
Dimensions W x D x H in 54.7 x 28.3 x 32.3 54.7 x 28.3 x 32.3
Weight lb 562 562

Technical specifications N 253-G

Standard version

ModelN 253 75/360 psig N 253 110/290 psig N 253 110/500 psig
Inlet pressure psig 75 110 110
Outlet pressure psig 360 290 500
Flow rate Complete system at working pressure acfm 37 62 53
Intake volume cfm 57 79 79
Piston displacement cfm 9 9 9
Compressor block / airend speed Label [Common - Unit RPM] is missing 1,135 1,135 1,135
Number of pistons Label [Common - Unit ] is missing 2 2 2
Nominal motor output hp 10 10 15
Sound pressure level dB(A) 76 76 76
Compressed air connection, inletNPT 3/4 NPT 3/4 NPT 3/4
Compressed air connection, outletNPT 1/2 NPT 1/2 NPT 1/2
Dimensions W x D x H in 54.7 x 28.7 x 31.9 54.7 x 28.7 x 31.9 54.7 x 28.7 x 31.9
Weight lb 639 639 639

ModelN 253 145/360 psig N 253 145/650 psig N 253 190/360 psig
Inlet pressure psig 145 145 190
Outlet pressure psig 360 650 360
Flow rate Complete system at working pressure acfm 80 67 108
Intake volume cfm 101 101 129
Piston displacement cfm 9 9 9
Compressor block / airend speed Label [Common - Unit RPM] is missing 1,135 1,135 1,135
Number of pistons Label [Common - Unit ] is missing 2 2 2
Nominal motor output hp 10 15 10
Sound pressure level dB(A) 76 76 76
Compressed air connection, inletNPT 3/4 NPT 3/4 NPT 3/4
Compressed air connection, outletNPT 1/2 NPT 1/2 NPT 1/2
Dimensions W x D x H in 54.7 x 28.7 x 31.9 54.7 x 28.7 x 31.9 54.7 x 28.7 x 31.9
Weight lb 639 639 639

ModelN 253 190/650 psig
Inlet pressure psig 190
Outlet pressure psig 650
Flow rate Complete system at working pressure acfm 94
Intake volume cfm 129
Piston displacement cfm 9
Compressor block / airend speed Label [Common - Unit RPM] is missing 1,135
Number of pistons Label [Common - Unit ] is missing 2
Nominal motor output hp 15
Sound pressure level dB(A) 76
Compressed air connection, inletNPT 3/4
Compressed air connection, outletNPT 1/2
Dimensions W x D x H in 54.7 x 28.7 x 31.9
Weight lb 639

Technical specifications N 351-G

Standard version

ModelN 351 75/360 psig N 351 110/360 psig N 351 110/500 psig
Inlet pressure psig 75 110 110
Outlet pressure psig 360 360 500
Flow rate Complete system at working pressure acfm 58 91 84
Intake volume cfm 84 116 116
Piston displacement cfm 13 13 13
Compressor block / airend speed Label [Common - Unit RPM] is missing 950 950 950
Number of pistons Label [Common - Unit ] is missing 2 2 2
Nominal motor output hp 15 15 20
Sound pressure level dB(A) 77 77 77
Compressed air connection, inletNPT 3/4 NPT 3/4 NPT 3/4
Compressed air connection, outletNPT 3/4 NPT 3/4 NPT 3/4
Dimensions W x D x H in 61 x 34.6 x 40.2 61 x 34.6 x 40.2 61 x 34.6 x 40.2
Weight lb 915 915 915

ModelN 351 145/360 psig N 351 145/650 psig N 351 190/360 psig
Inlet pressure psig 145 145 190
Outlet pressure psig 360 650 360
Flow rate Complete system at working pressure acfm 123 107 164
Intake volume cfm 148 148 189
Piston displacement cfm 13 13 13
Compressor block / airend speed Label [Common - Unit RPM] is missing 950 950 950
Number of pistons Label [Common - Unit ] is missing 2 2 2
Nominal motor output hp 15 20 15
Sound pressure level dB(A) 77 77 77
Compressed air connection, inletNPT 3/4 NPT 3/4 NPT 3/4
Compressed air connection, outletNPT 3/4 NPT 3/4 NPT 3/4
Dimensions W x D x H in 61 x 34.6 x 40.2 61 x 34.6 x 40.2 61 x 34.6 x 40.2
Weight lb 915 915 915

ModelN 351 190/650 psig
Inlet pressure psig 190
Outlet pressure psig 650
Flow rate Complete system at working pressure acfm 148
Intake volume cfm 189
Piston displacement cfm 13
Compressor block / airend speed Label [Common - Unit RPM] is missing 950
Number of pistons Label [Common - Unit ] is missing 2
Nominal motor output hp 20
Sound pressure level dB(A) 77
Compressed air connection, inletNPT 3/4
Compressed air connection, outletNPT 3/4
Dimensions W x D x H in 61 x 34.6 x 40.2
Weight lb 915

Technical specifications N 502-G

Standard version

ModelN 502 75/360 psig N 502 110/360 psig N 502 110/500 psig
Inlet pressure psig 75 110 110
Outlet pressure psig 360 360 500
Flow rate Complete system at working pressure acfm 74 114 104
Intake volume cfm 110 152 152
Piston displacement cfm 18 18 18
Compressor block / airend speed Label [Common - Unit RPM] is missing 990 990 990
Number of pistons Label [Common - Unit ] is missing 2 2 2
Nominal motor output hp 15 15 20
Sound pressure level dB(A) 77 77 77
Compressed air connection, inletNPT 1 NPT 1 NPT 1
Compressed air connection, outletNPT 3/4 NPT 3/4 NPT 3/4
Dimensions W x D x H in 61.8 x 34.6 x 40.2 61.8 x 34.6 x 40.2 61.8 x 34.6 x 40.2
Weight lb 1,014 1,014 1,014

ModelN 502 145/360 psig N 502 145/500 psig N 502 145/650 psig
Inlet pressure psig 145 145 145
Outlet pressure psig 360 500 650
Flow rate Complete system at working pressure acfm 155 145 132
Intake volume cfm 194 194 194
Piston displacement cfm 18 18 18
Compressor block / airend speed Label [Common - Unit RPM] is missing 990 990 990
Number of pistons Label [Common - Unit ] is missing 2 2 2
Nominal motor output hp 15 20 25
Sound pressure level dB(A) 77 77 77
Compressed air connection, inletNPT 1 NPT 1 NPT 1
Compressed air connection, outletNPT 3/4 NPT 3/4 NPT 3/4
Dimensions W x D x H in 61.8 x 34.6 x 40.2 61.8 x 34.6 x 40.2 61.8 x 34.6 x 40.2
Weight lb 1,014 1,014 1,014

Technical specifications N 2001-GW

Standard version

ModelN 2001 W 75/360 psig N 2001 W 110/360 psig N 2001 W 145/360 psig
Inlet pressure psig 75 110 145
Outlet pressure psig 360 360 360
Flow rate Complete system at working pressure acfm 268 409 548
Intake volume cfm 342 474 606
Piston displacement cfm 55 55 55
Compressor block / airend speed Label [Common - Unit RPM] is missing 750 750 750
Number of pistons Label [Common - Unit ] is missing 3 3 3
Nominal motor output hp 50 50 50
Sound pressure level dB(A) 84 84 84
Compressed air connection, inletNPT 2 NPT 2 NPT 2
Compressed air connection, outletNPT 1 1/2 NPT 1 1/2 NPT 1 1/2
Dimensions W x D x H in 78 x 39.4 x 39.8 78 x 39.4 x 39.8 78 x 39.4 x 39.8
Weight lb 2,271 2,271 2,271

ModelN 2001 W 190/360 psig
Inlet pressure psig 190
Outlet pressure psig 360
Flow rate Complete system at working pressure acfm 714
Intake volume cfm 761
Piston displacement cfm 54
Compressor block / airend speed Label [Common - Unit RPM] is missing 740
Number of pistons Label [Common - Unit ] is missing 3
Nominal motor output hp 50
Sound pressure level dB(A) 84
Compressed air connection, inletNPT 2
Compressed air connection, outletNPT 1 1/2
Dimensions W x D x H in 78 x 39.4 x 39.8
Weight lb 2,271

Technical specifications N 2001-GW

Standard version

ModelN 2001 W 75/360 psig N 2001 W 110/360 psig N 2001 W 145/360 psig
Inlet pressure psig 75 110 145
Outlet pressure psig 360 360 360
Flow rate Complete system at working pressure acfm 268 409 548
Intake volume cfm 342 474 606
Piston displacement cfm 55 55 55
Compressor block / airend speed Label [Common - Unit RPM] is missing 750 750 750
Number of pistons Label [Common - Unit ] is missing 3 3 3
Nominal motor output hp 50 50 50
Sound pressure level dB(A) 84 84 84
Compressed air connection, inletNPT 2 NPT 2 NPT 2
Compressed air connection, outletNPT 1 1/2 NPT 1 1/2 NPT 1 1/2
Dimensions W x D x H in 78 x 39.4 x 39.8 78 x 39.4 x 39.8 78 x 39.4 x 39.8
Weight lb 2,271 2,271 2,271

ModelN 2001 W 190/360 psig
Inlet pressure psig 190
Outlet pressure psig 360
Flow rate Complete system at working pressure acfm 714
Intake volume cfm 761
Piston displacement cfm 54
Compressor block / airend speed Label [Common - Unit RPM] is missing 740
Number of pistons Label [Common - Unit ] is missing 3
Nominal motor output hp 50
Sound pressure level dB(A) 84
Compressed air connection, inletNPT 2
Compressed air connection, outletNPT 1 1/2
Dimensions W x D x H in 78 x 39.4 x 39.8
Weight lb 2,271