For installations in close quarters, choose one of the axial piston Gardner-Denver air motors.  The axial piston air motor is small and lightweight, yet its rugged construction and precision manufacturing allow long life and minimum maintenance.  High torque is an inherent characteristic of piston type air motors, making them especially desirable for applications involving heavy starting loads and start-stop operations.  Due to enclosed type construction, axial piston pneumatic motors allow operation in corrosive, dusty, or high-temperature atmospheres.  Axial piston motors range:  0.9 - 15 HP, 5 ft.lb. -1952 ft.lb.  Single geared and double geared axial piston air motors are available.

To operate properly, the following must be taken into consideration when specifying an air
motor for an application

• Air pressure, psig or bars, at the motor location
• The air line pipe size must be sufficient to supply the volume, cfm or m3/min, of air
  required to operate the motor
• For most plant air systems the pressure varies during the day. The motor should be
  sized according to the minimum air pressure you normally have available.
• For reversible air motors, a four-way control valve is recommended to obtain forward
  and reverse. For one direction of rotation only, a one-way valve may be used.