Strumco Air Starter
7127-68 Avenue NW
Edmonton, Alberta
Canada T6B 3T6

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Ingersoll Rand 551N Series Air Motor

Ingersoll Rand 551N Series, Multi-Vane Air Motor available at Strumco Air Starter.

5.60 hp (4.18 Kw). 77 to 120 rpm with built in governor for maximum speed control. Torque adjustability through air controls.


Key Features 

  • Governed motors for improved speed control
  • Will not burn out: Air motors can be stalled or overloaded for long periods without damage.
  • Great for harsh environments: No heat build up or sparks make air motors ideal for use in flammable or explosive applications.
  • Instantly reversible: A four-way valve allows instant motor reversal (on reversible units) with the turn of a valve.
  • Cool Running: A running air motor expands air, allowing motors to operate in temperatures up to 150oF and some motors up to 300oF with special grease, lube and seals.
  • Compact and Portable: Get maximum horsepower in minimum size.
  • Variable speed: You may utilize a wide range of speeds by using a simple valve on your input air supply line.
  • Minimum maintenance: Our motors have a proven history of long, low maintenance life. All you need to provide is a clean, dry, lubricated air supply.
  • No shock starts: Air cushioned start-up cuts stress to your equipment.
  • Do not see what you need or want help with your selection: Call us at Strumco Air Starter 780.468.0050 with your requirements. We have hundreds of motors from which we can select. In many cases, we can provide “special” non-cataloged motors for unique applications.
Model Starting Torque lb.-ft. Weight lb. Speed at Max. Power (rpm) Air Consumption at Max. Power (scfm) Free Speed rpm Stall Torque lb.-ft. Max. Power hp
551SM51-W/RC 400 93 95 160 120 545 5.6
551S051-W/RC 650 93 59 160 77 885 5.6

Strumco Air Starter
Ph:  780.468.0050