EL-EXIS S 100-700
The ultimate high speed solution.
Short lived trends set the pace in fast cycling. Whether food or technical packaging, closures or technical precision components: parts are getting more demanding and more complex all the time as product life cycles grow ever shorter. To meet tomorrow’s requirements for precision and repeatability in terms of both quality and economics, machine builders have to use new approaches.
The EL-EXIS S at a glance
Dynamic: shorter injection times with extremely high injection rate through hydraulic accumulator
Powerful: higher plasticising capacity and homogeneity of the melt through independent electric screw drive
Fast: faster, more sensitive opening and closing of mould via independent electric drive of clamping unit
Safe: active mould protection system with piezoelectric sensors
Precise: high-resolution stroke measuring system on the injection unit combined with rapid-response servo-valve for accurate process control
Flexible: modular system for all fast-cycling, thin-wall and precision applications
Energy-saving: up to 40% lower energy requirements through parallel drives and practically loss-free power transmission; stand-by operation
Low maintenance: through wear-resistant force-transmitting components
Quiet: through compact, noise-dampened drive units
Clamping unit
While the injection unit design is innovative, so is the independent clamping unit drive. The electric servo-motor with a hydrostatic transmission providing nearly loss-free power transmission to the 5-point double toggle - the dynamic response of the clamping movement results in a significantly shorter dry cycle time compared to straight hydraulic machines. High drive dynamics, extremely fast and precise injection, as well as, accelerated mould open and parts removal - all these factors make for distinctly shorter machine cycles and energy savings of up to 40% and more when compared to conventional fast-cycling machines.
Drive
The EL-EXIS S has an innovative concept, which combines the advantages of all-electric machines with those of hydraulic fast-cycling designs. The concept features independent drives running in parallel for each movement of the machine which has set new standards: shorter cycles, optimal dynamics, and energy savings. Additional modular options for the clamping and injection units provide accurate solutions for nearly every fast-cycling and precision part in a clamping force range from 1,000 to 7,000 kN. The unique EL-EXIS S concept is our answer to increasing requirements in fast-cycling and precision injection moulding.
Injection unit
The speed and response required for high-precision, fast-cycling parts during plasticising and injection are generated by the EL-EXIS S on two levels. Firstly, the frequency-controlled electrical screw drive is the energy source with a high stored energy driving the rotary movements of the screw. The AC-servomotor transmits power practically loss-free to the screw. This design minimises maintenance requirements while ensuring quiet and energy-efficient operation.
Its decisive advantage: plasticising is possible over almost the entire machine cycle, cycle time is shortened, and output, melt homogeneity, and quality of colour dispersion are higher.
Secondly, high speed of injection is achieved by a hydraulic accumulator and a servo-valve.
The result: the dynamic response of the linear movement is not compromised, neither during acceleration nor in applying the force by mechanical transmission elements. In effect, with injection speeds of up to 1,000 mm/s and a screw acceleration of up to 12 m/s2 the machine achieves absolute maximum values.