Plastimac entered the demanding field of industrial packaging by presenting at the Dusseldorf trade fair five years ago, the continuos extrusion blow-moulding machine PB30/S. Suitable for the production of high
molecular weight canisters, this machine showed new solutions and amazing performances: the clamping force
of 30 tons is made possible by a 5,5 Kw hydraulic unit working at 100 bar only!
The clamping group slides on linear guides driven by a servomotor. Plastimac was the first company to introduce
the use of linear guides in the blow moulding field, making so evident the capacity to innovate and the high
technological standard of its Plastiblow machines. Linear guides guarantee high precision in movements,
reduced friction and lower wear. The mould-holder plates also slide on linear guides and their movement, like
the blow-pin, is controlled by proportional valves.
PB30, like all Plastiblow blow-moulding machines, is equipped with a mould clamping group with toggle system.
This force amplification system reduces consumption and avoids useless oversizing of mechanical parts and
hydraulic unit. Particularly, the PB30/S hydraulic unit has an oil tank of 150 litres only, and a multifrequency
motor power of 5,5 Kw to fulfil all the hydraulic movements. Considering the machine has a clamping force of 30
tons, these are superior features showing the really low energy consumption of the machine.
It is worth while highlighting that the continue extrusion technology offers several advantages if compared with
the accumulator heads one: better quality, easy and quick change of colour, faster cycles, better thickness
control and better necks calibration. Moreover, companies working in the industrial packaging field increasingly
use machines with carriage sliding on linear guides, instead of fixed carriage machines, because all finishing
operations inside the machine are easier and simple.
All Plastiblow machines are tailor-made and this availability is one of the most important characteristics to get to
the heart of a specialised, exigent and proficient market.
The product range includes single and double station blow-moulding machines for the processing of industrial
containers up to 30 litres, equipped with traditional or forced feed extruders to work with high molecular weight
polyethylene, both granule and powder.
All the lines may have one or more post-cooling stations to reduce the production cycles of UN homologated
stackable canisters; and they may be equipped with SFDR or PWDS systems to control and improve the radial
thickness.
When producing knapsack sprayers or pressure pumps our machines may be endowed with lower blowing units
with retractor and unscrewing blow-pins to make inside threads.
Among the several ancillaires we mention, aside from the patented electric parison control and the patented
system for the fine tuning of neck calibration, the automatic devices to finish the articles inside the machine, the
blowing needles for welded handles, the in-line quality-control units, the boxing machines and manipulators, the
view-stripe system, etc.
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