In the packaging business, plastic caps today are one of the products which is enjoying the most favourable trend. Therefore, manufacturers must focus on highly efficient and cost effective equipment, both in terms of investment and of management.
SACMI IMOLA has designed and made the most advanced system for manufacturing plastic caps, with a new series of machines called CCM (Continuous Compression Moulding).
Various models, having between 12 and 64 cavities, are available, and can mould caps of a d of up to 63 mm and a height of up to 55 mm.
Technological studies and practical applications have shown that this process is also useful for moulding other plastic objects, and offers important advantages:
- it cuts down costs: the shorter cycle (about 50% less in the case of PP MFI = 6) implies a far smaller number of cavities. Every cavity is independent from the other and there is no hot runner connection to the extruder. The materials are extruded at lower temperatures with an energy saving of over 45%. The machines are compact (size saving) and do not need very specialised operators (easy maintenance).
- Greater quality: the range of materials which can be used goes to very low MFI (0.3). Less fluid materials also offer further application advantages, better mechanical features, better breaking and shock strength, constant geometrical features and the elimination of the injection point (gate), improve aesthetics, better opportunities of decoration, advantages in handling and in system dust.
- Greater throughput: quick format change and individual cavity replacement; colour change can be done in up to 10 times less the time and with less waste of material.
The first consequence is less investments for the same output.
SACMI not only provides individual machines; it also provides complete lines for cap production (both one-piece and two-piece) which on request can be fitted with vision systems for quality control and plant monitoring systems.