Closures preforms containers

LINING MACHINES

The task of the liner is to ensure closures proper sealing and, in some cases of highly carbonated beverages, the retention of CO2 levels. SACMI has been a pioneer in this field, being the first to launch the liner moulding technology in the early ‘70s.

Prouction of liners for plastic closures

In order to ensure proper sealing and retention of CO2 levels with highly carbonated beverages we mould a PE/EVA liner into the cap’s shell. For that purpose we have developed two distinct and separate technologies, whose name is self-descriptive: in-shell moulding and out-shell moulding.

Prouction of liners for plastic closures
PMV224 lining machine

PMV224

in-shell lining machine

24 punches, productivity up to 1800 closures/min, max closure diameter 33 mm.

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PMV230 lining machine

PMV230

in-shell lining machine

30 punches, productivity up to 1200 closures/min, max closure diameter 43 mm.

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PMD230 lining machine

PMD230

out-shell lining machine

30 punches, productivity up to 1200 closures/min, max closure diameter 38 mm.

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PMC - in-shell lining machine for crown closures

The process begins with the preparation of individual pellets, which are then placed into the cap shell before moulding the liner to a pre-defined profile. The machine productivity rate depends on the type of resin used and on liner weight and profile. The liner quality is checked inline through a quality inspection system.

PMC - in-shell lining machine for crown closures
PMC600 IN-SHELL LINING MACHINE

PMC600

IN-SHELL LINING MACHINE

36 punches, productivity up to 6000 closures/min, max closure diameter 26,75 mm.  Read more

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PMC500

PMC500

in-shell lining machine

36 punches, productivity up to 5000 closures/min, max closure diameter 26,75 mm.

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PMC300

PMC300

in-shell lining machine

24 punches, productivity up to 3000 closures/min, max closure diameter 26,75 mm.

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PMC136 IN-SHELL LINING MACHINE

PMC136

IN-SHELL LINING MACHINE

36 punches, productivity up to 1,600 closures/min, max closure diameter 35.45 mm.

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PMV - in-shell lining machine for aluminum closures

Automatic lining machines designed to extrude pellet-form material (e.g. PVCfree, PE, EVA), cut it into single doses, insert them into aluminum screw closures and mould the liner according to a clearly defined profile.
Machine productivity is strongly influenced by the material type and the weight and profile of the liner.
By using PVC FREE raw materials the machine is suitable for moulding liners directly inside the shell of the cap.
Resins allow manufacturers to go beyond the limits of PVC (such as toxicity, smell emissions) offering in this way a new solution for the bottle closures  market.
The in-shell technology allows to shape the liners in order to maximize closure perfomances and reduce the compound weight.

PMV - in-shell lining machine for aluminum closures
PMV136

PMV136

in-shell lining machine

36 punches, productivity up to 1600 closures/min, max closure diameter 33 mm, max closure height 24 mm. Read more

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PMV130

PMV130

in-shell lining machine

30 punches, productivity up to 1200 closures/min, max closure diameter 46 mm, max closure height up to 24 mm.  Read more

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PMH120

PMH120

in-shell lining machine

20 punches, productivity up to 800 closures/min, max closure diameter 38 mm, max closure height up to 60 mm. Read more

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PMV120

PMV120

in-shell lining machine

20 punches, productivity up to 1000 closures/min, max closure diameter 38 mm, max closure height 24 mm. Read more

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PMA - in-shell annular lining machine

The use of PVC-free materials to make twist-off cap liners is becoming more and more popular with producers, especially in the baby food sector.
We developed a twist off cap solution that allows users to make annular-profile liners inside the cap starting with insertion of an annular dose of molten PVC-FREE plastic.
It eliminates the Plastisol/ PVC migration issues, especially when used in contact with oily and fatty food. No curing oven required.

PMA - in-shell annular lining machine
PMA

PMA

in-shell annular lining machine

We developed a twistoff cap solution that allows users to make annular-profile liners inside the cap starting with insertion of an annular dose of molten PVC-FREE plastic. It eliminates the Plastisol/ PVC migration issues, especially when used in contact with oily and fatty food. No curing oven required.

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PMA24 Lining machine - technical data

stations 24
output closures/min up to 1000
max closure diameter mm 82
average absorbed power (at max throughput) kW 34

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