The EX series from KraussMaffei is a new all-electric machine concept. Machines
from this series are clean, fast, highly precise and economical. The EX series
is available in clamping forces of 500 to 2,400 kN.
- The EX is a very clean machine that is simple to
maintain and ideal for cleanroom production. The
water-cooled drives generate no dust or air
turbulence. The cooling efficiency ensures that
conditions in air-conditioned rooms remain constant.
- The electric drive technology with optimized
electric motor, which converts the braking energy
into electricity, has a low energy consumption.
Depending on the part being produced, EX power
consumption can be up to 50 percent less than for a
- Potential savings for water consumption are even
greater. The cooling water is used twice – to cool
both converters and drives. Depending on the part
being produced, water consumption can be up to 70
percent less than for hydraulic machines.
- EX machines can be readily upgraded to automated
- The large platens offer plenty of scope for
future mould technologies.
- The MC5 microprocessor control ensures easy and
reliable machine operation.
- The EX can be readily used anywhere in the world
because it is compatible with all power networks.
The all-electric injection-moulding machine features
several technological innovations that harmonise
perfectly with each other.
Z-toggle clamp unit
A quality feature of the EX series is their minimal
dry-cycle times. These have been rendered possible by
KraussMaffei’s dynamic clamping concept. The patented Z
toggle generates an almost ideal clamping profile. In
other words: rapid movements combined with minimal times
for clamping force build-up and dissipation. The
Z-toggle system is a new clamping system in which the
number of movable elements has deliberately been
restricted. Conventional knee toggle systems have more
than twice as many articulations.
For the plasticising and injection unit, KraussMaffei
has opted for a direct drive with high-torque motors. In
this, the force is transmitted directly to the screw.
The direct-drive principle guarantees high performance.
Even the standard model can reach an injection speed of
300 mm per second. As with the Z toggle, the number of
movable parts has been minimised and this has had a
positive effect on the machine’s precision, reliability
and wear characteristics. Plasticising and injection
proceed via two coupled direct drives. These two drives
are arranged on one axis and have a strikingly simple
design. They do not require gears and are wholly
encapsulated. This drive concept guarantees consistently
high shot weights and highly reliable production.
Each axis in the EX series has its own electric drive.
As a result, both the unit and the ejector can be
operated in parallel and the mould can even be opened
during the plasticising phase. This shortens the cycle
times even further. All EX drives are water-cooled. This
increases their load-bearing capacity during long
holding times, for example, and improves their
efficiency. The highly efficient drives substantially
reduce consumption of cooling water, while the fact that
converters and motors are water-cooled ensures that
waste heat is dissipated in the best possible way.
All EX machines are equipped with the MC5
microprocessor control system. User friendliness and
simple handling are key features of the MC5. Clear,
easily understood on-screen visualization prevents input
errors. The graphics are designed to direct the
operator’s attention to important information. The
outcome is higher productivity and system availability.