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Aluminum gear pumps

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Aluminum gear pumps

Our gear pumps are robust and reliable. They are the ideal choice for a wide range of applications - from small to medium and large off-highway vehicles, as well as for industrial applications.

  • Pressure-balanced design, ensuring sealing pressure, adapts automatically to operating conditions for improved overall efficiency and minimum energy losses
  • Minimized internal friction and perfectly fitting housing for an extended operating life
  • Modular and short versions of multi-stage units for high flexibility and compactness
  • Teflon® coated bushings for extended life under extreme temperature and pressure conditions
  • A variety of integrated valve options
  • One piece gear shaft construction

Product range

    Frame size Frame size Frame size Frame size Frame size
    ,25 ,45 ,57 ,76 1,3
Displacement cm3/rev
[in3/rev]		 0.25
[0.015]		 0.45
[0.027]		 0.57
[0.034]		 0.76
[0.045]		 1,27
[0.075]
Peak pressure bar [psi] 200
[2900]		 200
[2900]		 200
[2900]		 200
[2900]		 200
[2900]
Rated pressure bar [psi] 180
[2600]		 180
[2600]		 180
[2600]		 180
[2600]		 180
[2600]
Min pressure at max speed bar [psi] 103
[1500]		 103
[1500]		 103
[1500]		 103
[1500]		 103
[1500]
Min speed at 103 bar [1500 psi] min-1 (rpm) 500 500 500 500 500
Max speed min-1 (rpm) 8000 8000 8000 8000 8000
Weight kg [lb] 0.40
[0.88]		 0.45
[1.00]		 0.46
[1.01]		 0.47
[1.03]		 0.48
[1.06]
Moment of inertia of rotating components x 10-6 kg•m2
[x 10-6 lb•ft2]		 0.425
[10.09]		 0.544
[12.91]		 0.621
[14.74]		 0.737
[17.49]		 1.049
[24.89]
Theoretical flow at max speed l/min
[US gal/min]		 2.00
[0.53]		 3.60
[0.95]		 4.56
[1.20]		 5.32
[1.41]		 6.35
[1.68]
Aluminum gear pump Gr 0
    Frame size Frame size Frame size Frame size Frame size Frame size Frame size Frame size Frame size Frame size Frame size
    1,2 1,7 2,2 2,6 3,2 3,8 4,3 6,0 7,8 010 12,00
Displacement cm3/rev
[in3/rev]		 1.18
[0.072]		 1.57
[0.096]		 2.09
[0.128]		 2.62
[0.160]		 3.14
[0.192]		 3.66
[0.223]		 4.19
[0.256]		 5.89
[0.359]		 7.59
[0.463]		 9.94
[0.607]		 12.00
[0.732]
SNP1NN                        
Peak pressure bar [psi] 270
[3915]		 270
[3915]		 270
[3915]		 270
[3915]		 270
[3915]		 270
[3915]		 270
[3915]		 210
[3045]		 170
[2465]		 - -
Rated pressure bar [psi] 250
[3625]		 250
[3625]		 250
[3625]		 250
[3625]		 250
[3625]		 250
[3625]		 250
[3625]		 190
[2760]		 150
[2175]		 - -
Min speed at 0-150 bar min-1 (rpm) 800 800 600 600 600 600 500 500 500 - -
Min speed at 150 bar to rated pressure min-1 (rpm) 1200 1200 1000 1000 1000 1000 800 800 800 - -
Max speed min-1 (rpm) 4000 4000 4000 4000 4000 4000 3000 3000 3000 - -
SEP1NN                        

Peak pressure

 bar [psi] 230
[3335]		 230
[3335]		 230
[3335]		 230
[3335]		 230
[3335]		 230
[3335]		 230
[3335]		 190
[2760]		 160
[2320]		 - -
Rated pressure bar [psi] 210
[3045]		 210
[3045]		 210
[3045]		 210
[3045]		 210
[3045]		 210
[3045]		 210
[3045]		 170
[2465]		 140
[2030]		 - -
Min speed at 0-150 bar min-1 (rpm) 800 800 600 600 600 600 500 500 500 - -
Min speed at 150 bar to rated pressure min-1 (rpm) 1200 1200 1000 1000 1000 1000 800 800 800 - -
Max speed min-1 (rpm) 4000 4000 4000 4000 4000 4000 3000 3000 3000 - -
SKP1NN*                        
Peak pressure bar [psi] 270
[3915]		 270
[3915]		 270
[3915]		 270
[3915]		 270
[3915]		 270
[3915]		 270
[3915]		 250
[3625]		 220
[3190]		 170
[2465]		 140
[2030]
Rated pressure bar [psi] 250
[3625]		 250
[3625]		 250
[3625]		 250
[3625]		 250
[3625]		 250
[3625]		 250
[3625]		 230
[3335]		 200
[2900]		 150
[2175]		 120
[1740]
Min speed at 0-150 bar min-1 (rpm) 800 800 800 800 800 800 600 600 600 600 600
Min speed at 150 bar to rated pressure min-1 (rpm) 1200 1200 1000 1000 1000 1000 1000 800 800 800 -
Max speed min-1 (rpm) 4000 4000 4000 4000 4000 4000 3000 3000 3000 2000 2000
ALL (SNP1NN, SEP1NN, SKP1NN)                        
Weight kg [lb] 1.02
[2.26]		 1.05
[2.31]		 1.09
[2.40]		 1.11
[2.45]		 1.14
[2.51]		 1.18
[2.60]		 1.20
[2.65]		 1.30
[2.87]		 1.39
[3.06]		 1.55
[3.42]		 1.65
[3.64]
Moment of inertia of rotating components x 10-6 
kg•m2
[x 10-6 
lb•ft2]		 3.2
[77]		 3.7
[89]		 4.4
[105]		 5.1
[120]		 5.7
[136]		 6.4
[152]		 7.1
[168]		 9.3
[220]		 11.4
[271]		 14.6
[347]		 17.1
[407]
Theoretical flow at max speed l/min
[US gal/min]		 4.72
[1.25]		 6.28
[1.66]		 8.36
[2.21]		 10.48
[2.77]		 12.56
[3.32]		 14.64
[3.87]		 12.57
3.32]		 17.67
[4.67]		 22.77
[6.02]		 19.88
[5.25]		 24
[6.34]
Aluminum gear pump Gr 1

shhark® is the low noise external gear pump with outstanding performance guaranteed throughout the whole life of the pump.

Read more about the low noise shhark® pump

shhark® aluminum low noise gear pump Gr 2
Frame   4,0 6,0 8,0 011 014 017 019 022 025
Displacement cm3/rev
[in3/rev]		 3.9
[0.24]		 6.0
[0.37]		 8.4
[0.51]		 10.8
[0.66]		 14.4
[0.88]		 16.8
[1.02]		 19.2
[1.17]		 22.8
[1.39]		 25.2
[1.54]
SNP2NN                    
Peak pressure bar [psi] 280
[4060]		 280
[4060]		 280
[4060]		 280
[4060]		 280
[4060]		 280
[4060]		 230
[3335]		 200
[2900]		 175
[2638]
Rated pressure bar [psi] 250
[3625]		 250
[3625]		 250
[3625]		 250
[3625]		 250
[3625]		 250
[3625]		 210
[4060]		 180
[2310]		 160
[2320]
Min speed at 0-100 bar min-1(rpm) 600 600 600 500 500 500 500 500 500
Min speed at 100-180 bar min-1(rpm) 1200 1200 1000 800 750 750 700 700 700
Min speed at 180 bar to rated pressure min-1(rpm) 1400 1400 1400 1200 1000 1000 1000 800 -
Max speed min-1(rpm) 4000 4000 4000 4000 3500 3000 3000 3000 3000
SKP2NN                    
Peak pressure bar
[psi]		 280
[4060]		 280
[4060]		 280
[4060]		 280
[4060]		 280
[4060]		 280
[4060]		 260
[3770]		 230
[3335]		 200
[2900]
Rated pressure bar
[psi]		 250
[3625]		 250
[3625]		 250
[3625]		 250
[3625]		 250
[3625]		 250
[3625]		 240
[3480]		 210
[3045]		 190
[2755]
Min speed at
max 0-100 bar		 min-1 (rpm) 600 600 600 500 500 500 500 500 500
Min speed at
100-180 bar		 min-1 (rpm) 1200 1200 1000 800 750 750 700 700 700
Min speed at 180
bar to rated pressure		 min-1 (rpm) 1400 1400 1400 1200 1000 1000 1000 800 800
Max speed min-1 (rpm) 4000 4000 4000 4000 3500 300 3000 3000 3000
Both SNP2NN, SKP2NN                    
Weight kg [lb] 2.3
[5.1]		 2.4
[5.3]		 2.5
[5.5]		 2.7
[5.8]		 2.9
[6.3]		 3.0
[6.5]		 3.1
[6.7]		 3.2
[7.0]		 3.3
[7.3]
Moment of inertia of
rotating components		 x 10-6 kg•m2
[x 10-6 lb•ft2]		 21.3
[505]		 26.5
[629]		 32.4
[769]		 38.4
[911]		 47.3
[1122]		 53.3
[1265]		 59.2
[1405]		 68.1
[1616]		 74.1
[1758]
Theoretical flow at
max speed		 l/min
[US gal/min]		 15.6
[4.1]		 24.0
[6.3]		 33.6
[8.9]		 43.2
[11.4]		 50.4
[13.3]		 50.4
[13.3]		 57.6
[15.2]		 68.4
[18.0]		 75.6
[20.0]
Aluminum gear pump Gr 2
SNP3NN   Frame size Frame size Frame size Frame size Frame size Frame size Frame size Frame size Frame size Frame size
    022 026 033 038 044 048 055 063 075 090
Displacement cm3/rev
[in3/rev]		 22.1
[1.35]		 26.2
[1.60]		 33.1
[2.02]		 37.9
[2.32]		 44.1
[2.69]		 48.3
[2.93]		 55.1
[3.36]		 63.4
[3.87]		 74.4
[4.54]		 88.2
[5.38]
Peak pressure bar
[psi]		 270
[3910]		 270
[3910]		 270
[3910]		 270
[3910]		 270
[3910]		 250
[3625]		 250
[3625]		 230
[3335]		 200
[2900]		 170
[2465]
Rated pressure bar
[psi]		 250
[3625]		 250
[3625]		 250
[3625]		 250
[3625]		 250
[3625]		 230
[3335]		 230
[3335]		 210
[3045]		 180
[2610]		 150
[2175]
Min speed min-1 (rpm) 800 800 800 800 800 800 800 600 600 600
Max speed min-1 (rpm) 3000 3000 3000 3000 3000 3000 2500 2500 2500 2500
Weight kg [lb] 6.8
[15.0]		 6.8
[15.0]		 7.2
[15.8]		 7.3
[16.1]		 7.5
[16.5]		 7.6
[16.8]		 7.8
[17.3]		 8.1
[17.9]		 8.5
[18.7]		 8.9
[19.6]
Moment of inertia of
rotating components		 x 10-6 kg•m2
[x 10-6 lb•ft2]		 198
[4698]		 216
[5126]		 246
[5838]		 267.2
[6340]		 294.2
[6891]		 312.2
[7408]		 342.3
[8123]		 378.3
[8977]		 426.4
[10118]		 486.5
[11545]
Theoretical flow at
max speed		 l/min
[US gal/min]		 66.3
[17.5]		 78.6
[20.8]		 99.3
[26.2]		 113.7
[30.0]		 132.3
[35.0]		 144.9
[38.3]		 137.8
[36.4]		 158.5
[41.8]		 186
[49.1]		 220.5
[58.3]
Aluminum gear pump Gr 3
TAP4NN pump model   Frame size Frame size Frame size Frame size Frame size Frame size Frame size
    60 85 106 130 148 180 200
Displacement cm3/rev
[in3/rev]		 58.0
[3.54]		 83.3
[5.08]		 103.4
[6.31]		 126.1
[7.69]		 143.8
[8.77]		 174.1
[10.62]		 194.3
[11.86]
Peak pressure bar
[psi]		 230
[3335]		 230
[3335]		 230
[3335]		 230
[3335]		 220
[3190]		 180
[2610]		 160
[2320]
Rated pressure bar
[psi]		 220
[3190]		 220
[3190]		 220
[3190]		 220
[3190]		 210
[3045]		 170
[2465]		 150
[2175]
Min speed min-1 (rpm) 650 650 600 550 500 500 480
Max speed min-1 (rpm) 3000 3000 2500 2500 2400 2400 2400
Weight kg [lb] 13.45
[29.65]		 14.4
[31.75]		 14.9
[32.85]		 15.75
[34.72]		 17.2
[37.92]		 17.25
[38.03]		 18
[39.68]
Moment of inertia of
rotating components		 x 10-6 kg•m2
[x 10-6 lb•ft2]		 682.7
[16193.6]		 839
[19901.1]		 965.2
[22894.5]		 1106.5
[26246.2]		 1216.4
[28853]		 1216.4
[28853]		 1530.3
[36298.7]
Theoretical flow at
max speed		 l/min
[US gal/min]		 174.4
[46.0]		 249.9
[66.0]		 258.5
[68.3]		 315.2
[83.3]		 345.1
[91.2]		 417.8
[110.4]		 466.3
[123.2]
Aluminum gear pump Gr 4

Documents

Documents
Type Name Language Valid for Updated Download File type
Data sheet Gear Pump shhark LoNoise English Multiple 06 Nov, 2019 501.2 KB .pdf
User guide Gear Pumps Group 0 and Group 1 English Multiple 30 Oct, 2019 7.2 MB .pdf
User guide Gear Pumps Group 2 Technical Information English Multiple 03 Nov, 2019 5.1 MB .pdf
User guide Gear Pumps Group 3 Technical Information English Multiple 01 Oct, 2019 4.4 MB .pdf
User guide Gear Pumps Group 3 Technical Information Chinese (CN) Multiple 03 Nov, 2020 4.6 MB .pdf
User guide Gear Pumps Group 4 Technical Information English Multiple 01 Oct, 2019 5.1 MB .pdf
User guide Shhark Low Noise Aluminum Gear Pumps Group 2 Technical Information English Multiple 09 Feb, 2020 3.4 MB .pdf

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