General Starter Information

Model AM3 AM5 AM10 AM4-B AM4-D
Weight (lbs) 18 22 40 65 120
Length (inches) 10.5 14 17.5 23 29
Max HP at motor psi: 90 psi 3.5 14 16 38 38
120 psi 5.5 20 23 52 52
150 psi 6.5 26 29 69 69
Max Torque (ft/lbs) at motor psi: 90 psi 21.5 60 110 150 230
120 psi 28.5 80 128 200 310
150 psi 34.5 98 140 240 385
Pinion speed at max
hp rpm at motor psi
90 psi 1750 2250 1750 2500 1600
120 psi 2250 2800 1850 2750 1750
150 psi 2450 3500 2200 3000 2000
Air use (cu ft/sec) at
max hp air pressure psi:
90 psi 2 5 6 13.5 13.5
120 psi 3 7 8 18 18
150 psi 4 9 10 23 23
Inlet Pipe Size (inches) 0.5 1 1.25 2 2
* Part numbers are for reference only. It is not implied that any part is the product of the manufacturer.

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