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Hotmatic HM 35 debuts in
the Black Forest
The first Hatebur Hotmatic HM 35 has started forging parts. Hatebur arranged for nearly two hundred
customers and guests from more than 20 countries to see it in operation at an open house event in
Hausach, Germany. Fastener & Fixing Magazine took advantage of the rare opportunity for a close up
tour of a new automatic hot forging system in full operation.
The HM 35 has been clamp the bar. A cam-driven loading station moves the cut-off into the
developed to take an first gripper, which positions it accurately in front of the first operation.
important position in the The 4-station machine has a total of five grippers. The fifth is the first
Hatebur Hotmatic range stage of a new lateral discharge system, which Hatebur describes as ‘very
of automated hot forging-friendly’. Discharge systems are designed specifically to ensure
forgers. The four there is no mixing of parts. A die-side ejector is optional.
station HM 35 has Grippers are designed as quick exchange units with adjustment carried
a forging tonnage out rapidly on an off-machine jig.
of 3,400kN, around The first Hotmatic HM 35 has
a third greater than been installed at Neumayer
its smaller cousin, the Tekfor’s facility at Hausach,
three station AMP 30S. in Germany’s Black Forest.
Maximum cut off length is The plant, which already
75mm; maximum part operates some twenty
diameter 40mm and Hatebur hot forging
maximum part weight 0.74kg.
The HM 35 weighs in at a
hefty 65 tonnes, similar to
its larger relative the AMP
40S, an indication of the
solidity of the frame
of the new machine.
Typical applications
machines, is part of a worldwide
group of automotive parts
production operations. The complete
HM 35 installation occupies a space 24
metres long and 9.2 metres wide. The
operating platform position and
dimensions can, however, be varied to suit
for the HM 35 will include automotive
customer requirements. The HM 35 would normally be fed with
parts, gears, bearings, flanges, nuts and
8-metre rod, but Neumayer Tekfor prefers to standardise on 6-metre
spiders.
rod throughout its operation. For the demonstration, which included an
One of the most distinctive HM 35
idle run at the full 180 strokes per minutes, production was of a bevel
developments is a marked increase in
gear. Control of the HM 35 was via an updated touchscreen operating
production speed. The new machine is capable
of up to 180 parts per minute, a 28%
system, first demonstrated at wire 2008.
enhancement over the AMP 30S. Two AC servo-
Hatebur say that, to date, six Hotmatic HM 35s have been ordered.
motors drive all four feed rolls, allowing infinitely variable adjustment
Three more are destined for customers in Germany, and two in Asia,
of the in-feed length and withdrawal of the bar after shearing.
with the last of these scheduled for delivery in 2009. Swiss
Pneumatic cylinders hold and lower the upper feed rolls during bar
headquartered Hatebur, which has established subsidiaries in Germany
transition, ensuring even contact pressure onto the raw material. and Japan, earlier this year opened a new branch in China – Hatebur
A completely new enclosed shearing system eliminates the need to (Shanghai) Technology Co., Ltd.
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