Why Roeders

Röders Hallenansicht

What makes Roeders unique

Take a look at 200 years of com­pa­ny his­to­ry and suc­cess­ful inno­va­tion, what Roed­ers does dif­fer­ent­ly and why Roed­ers is par­tic­u­lar­ly effi­cient in service.

Frequently asked questions about precision down to the submicron range

Sub­mi­cron pre­ci­sion — accu­ra­cies below one microm­e­ter — depends on the machine, its con­trol and the machin­ing process work­ing togeth­er. The answers below explain why Roed­ers achieves the high­est pre­ci­sion in milling and grind­ing, down to the sub­mi­cron range.

What does sub­mi­cron pre­ci­sion in machin­ing mean?

Accu­ra­cies below one microm­e­ter (0.001 mm) on the fin­ished part — in geom­e­try and sur­face fin­ish. Achiev­ing it reli­ably requires the machine, con­trol and process work­ing togeth­er, not just one pre­cise component.

Which machine fac­tors are deci­sive for sub­mi­cron pre­ci­sion?

Ther­mal sta­bil­i­ty, high struc­tur­al stiff­ness with low-fric­tion guide­ways, high-res­o­lu­tion mea­sur­ing sys­tems, and a control/drive sys­tem fast and pre­cise­ly enough reg­u­lat­ed to fol­low the tool path with­out devi­a­tion. Roed­ers devel­ops the con­trol, dri­ves and mechan­ics in-house, so these ele­ments are per­fect­ly tuned to one another.

How does the con­trol sys­tem influ­ence achiev­able pre­ci­sion?

The con­trol inter­po­lates the pro­grammed tool path and deter­mines the feed rate. This decides how accu­rate­ly the machine fol­lows the pro­grammed tool path. The Roed­ers RMS6 con­trol and dri­ves process NC blocks in less than 0.1 ms with a look-ahead of more than 10,000 blocks and 32 kHz clock fre­quen­cy in the dri­ve mod­ules, so con­tours are machined pre­cise­ly even at high feed rates.

What role does tem­per­a­ture play, and how is it han­dled?

Ther­mal drift is one of the biggest ene­mies of sub­mi­cron accu­ra­cy. Roed­ers over­comes it with the long-time devel­oped PRECITEMP® tech­nol­o­gy and ther­mal­ly sta­ble machine design, achiev­ing high accu­ra­cies even when the ambi­ent tem­per­a­ture at the instal­la­tion site is not constant.

How do guide­ways and mea­sur­ing sys­tems con­tribute?

Low-fric­tion, high­ly pre­cise guide­ways with NANOTOL® con­cept avoid the micro-move­ments typ­i­cal for roller guide­ways, while high-res­o­lu­tion opti­cal scales resolve the axis posi­tions with­in nanome­ter range — the basis for repeat­able sub­mi­cron results.

Is a pre­cise machine enough, or does the process mat­ter too?

The process mat­ters as much as the machine — cut­ting strat­e­gy, tool­ing and CAM pro­gram­ming are deci­sive. Roed­ers sup­ports this through its tech­nol­o­gy cen­ter and CAM sup­port, and a test cut on a sam­ple work­piece lets the achiev­able accu­ra­cy be demon­strat­ed on the customer’s own part before purchase.