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

• Fast: short cycles with maximum injection rates through central hydraulic accumulator
• Powerful: higher plasticising capacity and homogeneity of the melt through independent electric screw drive
• Safe: mould protection system with piezoelectric sensors
• Precise: high-resolution stroke measuring system at injection end combined with rapid-response servo-valve for accurate process control
• Flexible: modular system for all high-speed, thin-wall and precision applications
• Energy-saving: up to 40% lower energy requirements through parallel running drives and practically loss-free power transmission; stand-by function
• 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 is activated by a hydrostatic drive and provides nearly loss-free power transmission to the 5-point double toggle - the dynamic response of the clamping unit 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 high-speed machines.

Drive

The EL-EXIS S has an innovative concept, which combines the advantages of all-electric machines with those of hydraulic high-speed designs. The concept featuring independent drives running synchronously with every machine movement has set new standards: shorter cycles, optimum dynamics, and energy savings. Additional modular options for the clamping and injection units provide accurate solutions for nearly every high-speed and precision part in a clamping force range from 600 to 4.200 kN. The unique EL-EXIS S concept is our answer to increasing requirements in high-speed and precision injection moulding.

Injection unit

The speed and response required for high-precision, high-speed 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-servo-motor 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 proportionately, and output, melt homogeneity, and quality of colour disbursement are proportionately higher.
Secondly, high speed of injection is achieved by a central hydraulic accumulator and a servo-valve.

The result: 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 1000 mm/s and a screw acceleration of up to 12 m/s2 the machine achieves absolute maximum values.

EL-EXIS S
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 Product Brochure
EL-EXIS S 100-700 GB (1.22 Mb)

Technical Description
EL-EXIS S 100-700 GB/Technical Description (1021.19 kb)