30
Giants striding the world of
cold forming
Manufacturing SACMA large cold formers.
It is only four years since the first SACMA SP.660 5-die large cold former left the manufacturer’s works at Limbiate, near
Milan, in Italy. Today these machines represent a new generation of advanced, large cold forming machines built in Europe.
Cesare Bertoni, commercial director of SACMA Limbiate S.p.A., explains more about the development, features and world
market position of these new generations of European built machines, just as the latest is about to be installed at a major
Russian fastener plant.
Since the delivery of that first SP.660 manufacture of these large cold formers in at the end of the production cycle, have been
machine, ten SACMA large cold formers have series. This determined a radical change, not the ‘Winning Technologies’ that make a
been sold throughout the world – five of only in the aspect but also in the essence of SACMA machine the benchmark of cold
which are now producing regularly on a daily the factory, in order to assemble and handle, forming equipment, without doubt.
basis in customers’ factories. In the meantime with ease, a number of these large cold Particular attention has been dedicated in
a second series of these machines has been formers at the same time. developing the SP.660 and SP.670
put in production, including the 6-die version, The manufacturing environment is currently machines in order to make these large cold
that benefit from all the natural improvements being completed with the installation of two formers user friendly. The precise repetition of
that are the result of a logical process of very large, horizontal, high precision boring adjustments is guaranteed by an efficient
volution, based on the specific expectations machines, with 500 and 1,000 tools on board automatic motorised system, governed by the
and requirements of the end users; our respectively, capable of machining main SC-MATIC software. An Ethernet port can be
customers. frames up to weights of 100 tonnes. These used to transfer all data to a teleservice
network.
Hydraulic clamping of the tools,
of the wedges, of the transfer and
of the finger timing cams make life
easy for setters and operators to
work with such large machines.
The machines can also be equipped
with an automatic system for the
setting of the transfer finger timing
cams.
The standard equipment
includes special patented hydraulic
service platforms, which can be
positioned in the work area to
assist in the operation of individual
tool removal and setting of transfer
fingers in the machine.
Manipulation of tools and heavy
weights is performed by a portal
frame overhead crane with 3-D
power movements. Alternatively,
as optional equipment, a portal
type power robotised manipulator
is available for removing and fitting
of complete tool holders
automatically.
The project design and method of new investments are focused to maintain, An electronic joystick is supplied for ease of
manufacture follows the well known and well more than ever before, the manufacturing transfer finger setting procedures, allowing the
proven SACMA philosophy, which delivers process of components ‘All in House’, which operator to move the machine in slow motion
robustness, generous performance, power, has been the philosophy that SACMA has to avoid collisions of tools. At the same time it
reliability, efficiency, productivity and low followed throughout the years and which has will avoid jogging and safeguard the
production cost. Bringing these machines to been decisive in ensuring the success of its clutch/brake unit for greatly enhanced life.
market required many years of careful project machines worldwide. Many optional equipment and systems are
design and massive investments for the The correct choice of materials, the high offered on these machines to make them
manufacture of all the components. The precision of machining, the rigorous procedures extremely flexible for the manufacture of very
Limbiate main plant has been equipped with of manufacture, the heat treatments and the special complex geometry parts, made from
the most modern machinery for the quality control procedures, both in process and high tensile materials.
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