Product category:
Vertical machining centres (VMC)
News Release from: Yuasa Warwick Machinery | Subject: Kira Cheetah HPC-30Vb-2AQC VMC
Edited by the Manufacturingtalk Editorial
Team on 30 January 2002
Pallet change time is maybe the fastest
yet?
Not only does the Kira Cheetah VMC feature even faster rapid traverse and spindle speeds and halved tool change time, pallet change time is just 1.7s - faster than many ATCs.
The production engineer's dream of eliminating non-cutting time from machining cycles has come a step closer with the Kira Cheetah HPC-30Vb-2AQC vertical machining centre, available through Yuasa Warwick Machinery Although the Japanese-built machine sells for the same price as its previous equivalent in the Kira range, the Cheetah features rapid traverse and spindle speeds that are almost doubled, halved tool change time, and increased tool magazine capacity
This article was originally published on Manufacturingtalk on 31 May 2001 at 8.00am (UK)
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In addition, the machine is capable of exchanging pallets in 1.7 seconds - faster than many machines can change tools.
Maximum traverse speed in all axes is 56m/min, while cutting feed rates up to 10m/min can be programmed.
This allows the machine to take full advantage of the high rigidity 3.7kW spindle, which has a BT30 taper.
It offers maximum speed of 15,000 rpm and can accelerate to full speed in 0.7 second.
Combined with 0.7 second tool-to-tool exchange, this allows the machine to achieve a chip-to-chip time of an astonishing 1.7 seconds.
Tools are housed in a 20-station disc-type tool change unit which pre-selects the next tool to facilitate rapid tool change.
Maximum tool weight is 3,0kg.
Two through-spindle coolant systems with either 10 bar or 70 bar pressure may be specified.
Rigid tapping at up to 6,000 rpm is available.
The machine is designed as a high speed production centre for small aluminium or steel components.
Its capacity is defined by axis travels of 350mm in X by 290mm in Y by 320 mm in Z.
Format follows transfer line practice, as the Cheetah is essentially a miniature travelling column machine.
All linear axis movements are concentrated on the column, and supported on high rigidity linear recirculating ball bearing slides.
The rotating worktable is partitioned into two 500mm by 300mm pallets.
Depending on user requirements, the table can be configured for loads up to 50kg or 100kg per section.
With a 100kg load, pallet index time increases to 2.4 seconds.
The Cheetah is not only a very fast machine, but it is also capable of high levels of accuracy owing to the combination of advanced machine build practice and integrated spindle cooling as standard.
(This was Manufacturingtalk's Top Story on 29 January 2002).
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