Product category:
Power presses, mechanical
News Release from: Bruderer UK | Subject: 'Essential' automatic punching press
Edited by the Manufacturingtalk Editorial
Team on 07 November 2006
Automatic press stamps thinner
components
A new automatic press will cater for high volume, where materials to be stamped have become ever thinner and the feed pitches through the dies ever shorter.
The Bruderer BSTA 200-60BE 'Essential' automatic punching press will be introduced to the market in early 2007 It is Bruderer's latest development, which adds a new dimension to companies specialized in the stamping of small and high precision parts
This article was originally published on Manufacturingtalk on 9 Aug 2001 at 8.00am (UK)
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"Why does Bruderer place a new automatic punching press in this segment?" you may want to ask.
Well, the answer is quite simple: The demands put up by the market have changed considerably and the BSTA 200-60BE is the answer to such changes.
Following a thorough and precise market study and many talks with our customers all over the world, the new requirements were converted and realised not only in the machine but also in a new control and a new feed design.
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In those fields where high-precision micro parts must be stamped in large numbers, namely in the electronic, watch making and automotive industry, things have undergone enormous changes during the past five years.
The materials to be stamped became ever thinner, the feed pitches ever shorter, the required precision ever higher, and the pricing pressure ever stronger.
Furthermore, the process following the stamping process, as for instance the assembly of the components or the over-moulding of the punched parts, requires an ever higher accuracy and above all, maximum repeatability.
With the BSTA 200-60BE 'Essential', Bruderer is able to fulfil these requirements.
* The automatic punching press - the press force in the target segments is not the primary problem.
Most applications require press forces of a few tonf.
Therefore, the new machine type was designed for a press force of 20 tonf (200kN).
For Bruderer this means that the machine may actually be operated with these 20 tonf without affecting the high precision and machine and tool life.
One new feature is the use of a drive system using two connecting rods in a machine with 20 tonf punching force.
This brings along an essentially higher stability and precision in the punching process.
In addition, the unique ram adjustment by Bruderer is realised in the new BSTA 200 - this unit is able to automatically compensate any offset in the BDC area during the punching process.
The punching tools which became longer and longer despite the ever shorter feed intervals caused us to define a tool loading area of 600mm.
Alternatively, the automatic punching press will also be available with 700mm tool loading area starting from the middle of 2007.
The standard model of the automatic punching press is designed as fixed stroke machine.
This mainly fulfils the demands of the Asian markets where most of the machines are used for the production of electronic compo-nents.
However, our sales program includes the adjustable stroke as an option in order to also satisfy other markets.
With the smallest fixed stroke of 8mm, the machine may be operated at a speed of 2000 strokes/min.
* The feed units - the roller feed unit BBV 180 is a new development as well.
Like the other roller feeds by Bruderer, it is mechanically driven via a cardan shaft.
The new BBV 180 allows for the quick and simple replacement of the rollers which improves the flexibility and productivity.
If required by the process, also a gripper feed unit may be used.
* The control - on the basis of the proven B control, we have designed and developed a new machine and process control.
The 'B-Essential' fulfils all requirements of a state-of-the-art control and is very easy to operate.
Via the touch screen, the operator may enter all relevant information quickly and in a perfectly structured way or may even update and optimize these data during the punching process.
The operation is aimed to focus on the capabilities of the operator than to the automation.
Back to the 'roots' of the machine - and only what is needed in the process - is our motto.
The hardware is configured in a way that all rotating elements, as for instance ventilator and hard disc, were eliminated.
Concerning the hardware, the main focus was placed on reliability and long life.
The concept also resulted in a considerable reduction of the control cabinet size.
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