Bulletin 2/2010 - Siempelkamp NIS

PAMA Speedram 2000
Alcoa, was fi nish-machined on the two
portal milling machines by Schiess (see
page 62).
Two additional large-scale machines are
being installed. From Italy Siempelkamp
ordered a plate boring mill and milling
machine type PAMA Speedram 2000. The
quality features of PAMA machines in clude
high precision, high speeds, high torques,
as well as a high drive power for optimal
machining results.
With a longitudinal travel of 10,000 mm
(33 ft) and a vertical travel of 5,000 mm
(16 ft), the new PAMA opens up an extremely
large machining capacity for
Siempelkamp. Further key data illustrates
that the existing machinery at the Krefeld
production location is complemented with
another highlight by adding the boring
mill and milling machine. The spindle
power amounts to 60 kW, the bearing
shell section covers 400 x 440 mm. The
machine table with a dimension of 6 m x
5 m can be loaded with a weight of 25 t
SIEMPELKAMP | MACHINERY AND PLANTS
per m²! Workpieces with piece weights of
up to 100 t (110 US tons) can be machined.
The automatic tool changer is designed
for 120 tools. Furthermore, the PAMA
Speedram 2000 includes an automatic
angle milling head and a universal milling
head. An important benefi t: Possible
thermal expansion of the spindle or the
bearing shell is automatically compen sated
thanks to a PAMA patent. The spindle
bearings with minimal lubrication are
surrounded by oil and are kept thermally
stable via an oil cooler. The assembly of
this machine is scheduled for April 2011,
the start-up for June 2011.
A large-scale turning machine type VME
10 by Schiess has also been added to the
production center. This turning mill has a
face plate diameter of 10 m (33 ft). With
the help of extended beams, which are
mounted to the face plate in a star-shaped
arrangement, the mill can machine large
parts with diameters of up to 15 m (49 ft)
and heights of up to 6 m (20 ft). Once
again the service chain between Siempel-