Circular saw tackles job-shop and series production economically
Wymbush, Milton Keynes
Tel. 01908 571 590
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A new, up-rising circular sawing machine for straight and mitre cutting, called KASTOflex, has been introduced in semi-automatic (U) and NC-controlled automatic (A) versions by Milton Keynes-based KASTO, the UK subsidiary of the German machine manufacturer. The saw is designed for cost-effective single and batch cutting of tubes and hollow profiles, as well as solids, and is said to be easy to set up and operate.
The semi-automatic version of the machine has a support table that rotates to the left or right on an accurate, four-point roller bearing. Any mitering angle from +90 to -90 degrees can be set quickly and accurately. The blade is driven via a precise, four-step gearbox with bevel-toothed, hardened and ground gears running in an oil bath, either by a pole-switchable motor (cutting speeds 12 to 24 m/min) or a frequency-controlled, three-phase, 4 kW motor (10 to 60 m/min).
Rapid set-up is assisted by an encoder to 'teach-in' entry of the saw blade lift limit, free access to the saw blade through a large door, and an ergonomic pivot point when adjusting the mitre angle. The swivel axis of the saw gear is pre-tensioned and runs on taper roller bearings.
Solid or segmented HSS (high speed steel) saw blades of 350 to 450 mm diameter are used. Maximum cutting ranges are 380 x 25 mm flat (270 x 20 mm for the automatic saw),140 x 140 mm square and 150mm diameter round.
The automatic KASTOflex A is recommended for sawing larger batches. It is easily operated from the manufacturer's CompactControl, which is equipped with an LCD display and allows the operator to enter an order with just a few key strokes. Automatic material infeed of up to two metres in a single stroke is possible. The shortest remnant is 35 mm for straight cuts and 95 mm for a 45 degree mitre cut.
For small to medium series batches involving different cut piece lengths and mitre angles, the machine can be equipped with a 2-axis computer control, which positions the ballscrew feed system and the rotary table. As an option, a patented 'pusher' can be used for cut piece removal.
KASTOflex mitre cutting saws can be equipped with various accessories such as roller conveyors and measuring stops or chain-driven infeed magazines, while the highest level of automation is achieved by integrating the machine into a Kasto sawing centre with computer-controlled material storage and retrieval.