FOCUS ON ROLL BENDING
The change gear option enables the exchange of the top roll .
About Schröder-Fasti
Schröder-Fasti , part of the Schröder Group , creates innovative sheet-metal processing technologies . Its portfolio includes round bending machines ; flaring machines ; hydraulic plate shears ; press brakes and pivoting bending machines . Branch offices are in Germany and Denmark .
Together , the companies Hans Schröder Maschinenbau GmbH ,
Schröder-Fasti Technologie GmbH and Schröder-Fasti Scandinavia
A / S form the umbrella brand Schröder Group .
The shop floor at RIETHO .
Storage and warehousing at RIETHO .
The 134 / 15 / 2 slip bending roll .
The 134 can continuously bend tighter or wider radii and also produce tapered objects utilising individual control of the three rolls
at Schröder-Fasti , RIETHO received a very interesting inquiry for components with tighter radii . As a result , an 80mm roll was ordered along with the standard 100mm roll .
“ RIETHO therefore received two machines in one from us ,” said Christian Jarosch , sales representative at Schröder-Fasti Technologie GmbH from Wermelskirchen in North Rhine- Westphalia . “ It is now possible to bend either full width 2mm steel sheets to about a 60mm radius or 1.5mm sheets to about a 50mm radius . We can only give approximate guide values , as every material behaves differently .”
The machine memory
Different sheet-metal materials and even differences between batches and roll directions are the subtleties to which a user must adjust when bending . The springback behaviour of stainless steel is particularly worth mentioning . Florian Kuderer , one of the employees at RIETHO who works most frequently with the Schröder-Fasti machines , appreciates the CR80 PLC software control of the slip bending roll 134 , the bending program memory and the incremental dimension correction .
“ Many customers order the same products again and again . Setting up the machine for this is very quick because the bending program is stored and can be automatically adapted to the current material characteristics ,” he explained .
One of these recurring orders , for example , is a one-third shell with a 90mm radius which is required for the cladding of revolving doors .
As a machine operator of Schröder-Fasti slipbending rolls of various generations , Florian Kuderer knows the benefits such as the asymmetrical three-roll arrangement ( which enables start-up and finish rounding in the machine , particularly short straight ends , and high concentricity of the tube closure ).
He also appreciates progress in the software control . For example , the 134 can continuously bend tighter or wider radii and also produce tapered objects utilising individual control of the three rolls . The funnel-shaped tablet chutes for a medical technology company , which he produced with the machine , was only a small order ( in terms of quantity ) but also an example of the level of flexibility in sheet-metal forming with this latest addition to RIETHO ’ s slipbending rolls . n
www . rietho . de
www . schroedergroup . eu / en /
32 | ismr . net | ISMR July / August 2023