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Negri Bossi exhibited all electric LSR machine at Plastpol

Negri Bossi exhibited all electric LSR machine at Plastpol

News 14.06.2017


Negri Bossi, through their agent NTQ, showcased two very exciting machine applications occupying a 250m² floor area.
An all-electric 180 ton machine from the new ele series was running a unique foam microcellular molding process, producing a complete ping pong bat.


The 180-630 machine was injecting the body in a PBT material from the main 45mm plasticising unit, while a vertical electric injection unit was feeding a soft TPE handle. One of the bat faces was moulded in a foamed LSR (Liquid Silicone Rubber) to produce the ‘spongier’ side of the bat. The firmer face was in a standard LSR material. The LSR materials were injected directly into the mold from a dosing unit system equipped with a special process for producing the foam microcellular moulding material.

The moldings were handled by a 6 axis Robot supplied by Negri Bossi Group company, Sytrama. The mold was manufactured by Esistampi s.r.l.

The second Negri Bossi machine was a 250 ton Canbio st servo hydraulic model, molding a four-cavity 300cc polystyrene drinking glass. The machine was equipped with two 3-Axis Sytrama robots. The mold was manufactured by New Tresing Stampi s.r.l. A model S9 removed the moldings from the machine. A second S10 model took the glasses from the S9 and filled them with juice to demonstrate the accuracy and stability of the robots.


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