MACH 2016 Milton Keynes-based Kasto Ltd (
www.kasto.com) will show for the first time in the UK its KastoWin Tube A5.0, which is designed for sawing tubular material (Hall 4 Stand 4638). The blade cuts from the bottom upwards — unlike on other bandsaws, where the reverse is the case.
According to Kasto, this novel action, for which patent applications have been made, reduces wear on the band and avoids the tooth damage that often occurs when a blade travels downwards into swarf that has accumulated inside the bottom of a tube.
Until now, this problem made it virtually impossible to use a tungsten carbide-tipped (TCT) blade for sawing tube, as the teeth were invariably damaged; using a bi-metal blade was the only option. However, the company says that with its KastoWin Tube A5.0, TCT blades can be used without fear of premature wear.
The automatic saw has a feed mechanism that is rotated through 180deg, so that the cutting action starts at the surface supporting the stock. Round tube up to 530mm in diameter can be processed, and the shortest cut length is 10mm. The frequency-controlled drive delivers cutting speeds of 12-150m/min.
The machine’s SmartControl incorporates the new KastoRespond feature, which continuously records the force on the blade without the need for additional sensor systems (an algorithm is used to continually vary the feed rate so that the force on the blade is maintained at a constant optimised value).
This tube saw is the sixth model to be introduced to the KastoWin range of bandsaws. The original five have maximum cutting capacities from 330 to 1,060mm. A KastoWin 3.3 with a maximum cutting capacity of 330mm diameter or 330 x 350mm will be demonstrated at the show.
The established range of KastoTec bandsaws will be represented on the stand by an AC4 KPC with a 430mm cutting capacity. Designed for operating with TCT blades, KastoTec AC-series machines feature a steel/mineral cast composite construction that is said to offer up to eight-times better vibration-absorbing properties than cast iron.
The machine at MACH will feature the optional factory-fitted Kasto Performance Cutting package, which is designed to increase band speed further by virtually eliminating the effects of vibration.
Also on display will be a KastoFunctional pivot-type bandsaw with hydraulic in-feed. A semi-automatic model will be on the stand at MACH, although manual and automatic versions are also available. This machine is capable of cutting material up to 260mm round/square, while mitre-cutting to the left at up to 45deg and to the right at up to 60deg can be performed on tube, section and solid material. The cutting speed is steplessly adjustable from 20 to 110m/min.
Finally, with two cutting speeds for universal use in workshops, the KastoRadial M6 circular saw will be on show. This machine, which can undertake straight cutting and mitre cutting on both sides within 45deg, features a double vice with a quick clamping lever.