traub TNX65 User Manual

“Small, yet perfect!”

Reprint from the technical journal W+B

3/2011, Carl Hanser-Verlag.

Customer: Jowos Metalltechnik GmbH & Co. KG

Complete, off-the-bar machining requires efficient milling: The swivel spindle (left) whose B-axis runs through a ±95° swivel range in rapid traverse at 450°/s
outputs 10 kW with up to 52 Nm torque and maximum 12,000 rpm; the quick change of the 80 HSK-A40 tools from the magazine takes place via a
covered shaft in the work area at the top (right)

for son, Frank Wolframsdorf. He has been on board for nearly 20 years

“Small,
yet perfect!”

To celebrate its 50th anniversary at

now and, since 2004, has been responsible for successfully continuing

with the company his father has built up. The Jowos Metalltechnik motto

has outlasted the new generation: “For us, growth is not an end in itself

and size is not a preferred objective. On the contrar y, it is our priority

to encourage a solid customer relationship to achieve mutual prosperity.

Small, yet perfect,” explains the junior boss.

the end of 2010, Jowos moved to a new
production plant in Seitingen, Germany.
The technological highlight is a 13-axis
turning/milling center from TRAUB
with which increasingly complex parts
can be produced quickly and precisely.

Author: Helmut Damm

Entrepreneurs, like Josef Wolframsdorf, founder of Jowos Metalltechnik

in Seitingen-Oberflacht, have helped machining flourish in Germany. The

50 years history of the successful company is almost classic: He started

with a conventional parting-off machine in his basement. After con-

structing the first building with subsequent extension, he then bought

the site of a former joinery – but his company soon outgrew the site

and needed room to develop further. This all lead to the construction

of a new building for the 50th anniversar y in 2010 – as much a libera-

tion as well as an obligation to ensure the continued solid management

Technological companions

Another constant throughout the decades has been the close techno-

logical cooperation with the Reichenbach lathe manufacturer, TRAUB.

To this day, the off-the-bar turning and turning/milling of supply parts

in small to medium batch sizes has been the core competence of

Jowos. TRAUB has been able to provide suitable machine solutions for

the majority of tasks which have presented themselves over the 50

years history. To date, Jowos has been operating eight A25 type lathes,

mechanically indestructible marvels, on which special parts like nuts

and washers have been produced with consistently high production

volumes and an unaltered design for years. With the entr y into CNC

bar machining in the early nineties, there followed TNS (chuck and

automatic bar lathes), TNL (fixed headstock automatic lathes), TNA

(Universal lathes) and TNC (turning and milling centers) – a total of six

machines with main and counter-spindles, Y-axis and live tools.

Alongside the new construction, last year Jowos managed to fulfill yet

another dream: It has invested in a CNC turning/milling center, type

TNX65/42, and, thus, in the 13-axis complete off-the-bar machining of