The FFP is pushed forward into contact with the burr edge by use of a remotely controlled air pressure. The air vane motor is decoupled from the linear movement of the FFP, to reduce inertia and increase the stability of the contact force when deburring. The spline coupling transmits torque to the rotary file.

 Ball bearings ensure an even running of the tungsten carbide file. A very little friction torque is transmitted through the ball bearings to the FFP cylinder, which rotates slowly inside the stationary outer cylinder. Thus stick-slip or static friction of the FFP is avoided. The FFP cylinder is in addition precision ground to ensure very little friction in the axial direction.

The pneumatic connection diagram for the Hiac is shown to the right.

 A special Speedeburr adapter is available as extra equipment, to enable standard air nipples to be coupled to the Hiac. Air silencers can be coupled to the exhaust ports of the adapter, to take away the noise when exhaust air enters the atmosphere.

 The drive air to the vane motor should be mist lubricated by use of conventional pneumatic equipment.

 An external pressure control valve, for example mounted on the industrial robot's upper arm, will control the axial force on the rotary tungsten carbide file.

The axial force is adjusted until a chamfer with the correct width is produced, for a given path speed.

• Motor: Air motor, vane type.
• Speed: Idle 30,000 rpm, operating 18-25,000 rpm.
• Torque: 0.4Nm at lower speeds.
• Power: 250 W at 20,000 rpm.
• Weight total: 0.51kg.
• Weight FFP with file: 50 g.
• Compensation, due to burr inaccuracy: max. +/-4mm in/out and sideways, recommended to use +/-2 mm.
• Axial force: 1-25 N, by pressure 0-3 bar.
• File surface speed: 7.5-10.5 m/sec measured at 8mm diam. (halfway between tip and outer rim).
• Air consumption: Appr. 400 I/min., 5 bar pressure.
• Sound pressure level: 75 dB(A).
• Sound pressure value: 87 dB(C).
• Rotary burrs: (1)90° coned shape, straight fluting.(2) 90° coned shape, spiraled fluting.and (3) Flowerburr, end miller with contact point.
• Other rotary burr/file qualities on request.
• Special tools: Burr change tool.