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Kapp AST 305 B

Kapp AST‑305B – Technical Specifications

Machine type: automatic hob and gear cutter sharpening machine
Year of manufacture: circa 1979
Machine function: resharpening of hobs, spiral or straight gash cutters; wet or dry grinding
Maximum tool diameter capacity: 12 inches (300 mm)
Maximum tool length between centers: 27 inches (700 mm)
Maximum table traverse: 21.56 inches (550 mm)
Maximum grinding wheel diameter: 12 inches (300 mm)
Maximum center height: 6.1 inches (155 mm)
Table speed (infinitely variable):
– deep grinding: 30 to 1000 mm/min
– surface grinding: 3 to 16 mm/min
Flute lead angle range: 0° to 45°
Flute lead range: selectable, up to 24‑inch to zero or 12‑inch to zero
Grinding spindle speed: 2200 rpm (optional 1000–4000 rpm)
Axial grinding spindle adjustment: 16.54 inches (420 mm)
Vertical grinding head adjustment: 11.81 inches (300 mm)
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Spindle taper: Morse 4 or steep taper 40
Preselectable single in-feed: range 0 to 9999 (units)
Machine dimensions: length 118 in × depth 82 in × height 93 in (≈3000 × 2080 × 2360 mm)
Machine weight: approximately 7,500 lbs (3,000 kg)
Control system: originally manual/analog, often upgraded with Allen‑Bradley PLC