Pneumatic filing machine ASH-900, 6,300 min-1 - Nitto Kohki 111400001

Mating faces on dies, moulds and fixtures usually end up being filed by hand, and that takes time. These air filing machines supply the stroke at 3,700 to 9,000 cycles per minute at a tool weight of 0.4 to 1.1 kg, leaving the operator to guide the file.

• Stroke rates of 3,700 to 9,000 per minute take over the hand stroke and keep material removal even.
• Stroke lengths of 4 to 9 mm allow a choice between fine finish and faster removal.
• Weights from 0.4 kg reduce hand and wrist load during long rework runs.
• Depending on model, flat, round, triangular and half-round files are supplied and cover the usual contours.
• File changes are made with the supplied hex key, no further tooling needed.
• Air consumption of 0.2 to 0.7 m³/min is quoted per model and can be checked against the supply beforehand.

Technical data

Applications

• Rework on dies and injection moulds
• Deburring internal edges with poor access
• Adjusting fits on fixtures and gauges
• Removing flash from castings and weldments
• Detail work on prototypes and one-off parts

Standard accessories

• Flat Bastard File SF-13 : 1 pc.
• Rat Tail File SF-10 : 1 pc.
• Triangular Taper File SF-11 : 1 pc.
• Half Rounded File (Rat Tail/Double Cut) SF-12 : 1 pc.
• 2.5 mm Hex. Socket Screw Key : 1 pc.
• Bushing R 1/4 x NPT 1/4 : 1 pc.

Operating principle

An air motor produces an oscillating linear movement that is transferred to the clamped file. Stroke length and stroke rate together determine how much material comes off per pass. Quoted stroke rates are no-load figures.