Presma S.p.A.

Novelties in "Non Standard Technology

PRESMA SPA, leader manufacturer of injection moulding machine for special applications, will attend to “K 2010” Exhibition stand n. 15C57. They will show three machines that represent the particular technology of the Company from Varese and stress the concept of NON STANDARD TECHNOLOGY, innovative solutions accurately looking to the peculiar needs of the market.
At the stand centre will run the PRESMALL machine, fully electric mini-press with 6 tons clamping power, introduced to the market in occasion of Plast ’09 Exhibition in Milan, with improvements in comparison with the first version. The machine, equipped with a touch-screen interface and dedicated software, allows fast working cycles with high precision and very low energy consumption. From the technical point of view the main improvement is that the machine, equipped with a real reciprocating screw injection unit, is able to melt and homogenize coloured resins, granting the perfect chromatic similarity. The use of simple moulds with reduced number of cavities allows the optimisation of the investment when small outputs are demanded. PRESMALL, thanks to its features, is particularly suitable for the micro-moulding, even in “white room”, and it may accept feeding unit for genuine rubber and either compact or liquid silicon.

The second press is the model GTS100 TC, a horizontal machine with hydraulic clamping on the four columns, equipped with two reciprocating screw injection units and double pump, to allow the running of melting and injection operations in the meantime. The press will have a rotary table mould-holder with two 240 mm diameter rounded cavities and a feeder for the moulding, in automatic cycle, of two materials heel-tops with steel nails for lady shoes. The first injected material grants a perfect adhesion to the steel insert while the second resin make a soft tread for comfort and silent walk.

The third new machine represents the entry of Presma in the field of genuine rubber and silicon processing. The press model RS 300/4000 F, designed and entirely assembled in Presma, is a vertical machine with 3000 KN clamping unit on the four columns. It is equipped with a movable device to transfer two half bottom moulds out of the press and to combine them alternatively to the half top mould, in order to reduce the cycle time. This model may process either genuine rubber or silicon. At the Exhibition the machine is equipped with a vertical injection unit, FIFO type, with transfer cylinder and feeding unit for solid silicon blocks. Two hydraulic cylinders grant the mould approach and the fast opening while the main cylinder makes the high pressure clamping.