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Preform Tooling
Designed & built to -
produce high quality preforms
achieve fast cycle time
consume minimum energy
minimize mould change time
repair and service easily
provide a long and trouble free service life
Features & Benefits
Core lock type stack design
Thread splits are locked in position by lock rings before mould closing to minimize wear of thread split tapers on the cavity side for a long flash-less service life of thread splits
Preform collar is placed inside the thread splits to minimize clamping force requirement and resulting stress on the mould and clamping unit
Modular cavity construction
Replaceable cavity lock ring; a wear part separated from cavity for inexpensive and easy replacement
Replaceable gate insert; a wear part separated from cavity for inexpensive and easy replacement
Cavity never needs to be replaced
No axial load on cavity allowing the use of lower steel section thickness and faster cooling
Precision machined and finished
Weight variation across cavities is minimal
Excellent concentricity between core and cavity for minimum wall thickness variation
Consistent dimensions across cavities
Flash-less parting lines
Good mould life due to perfect matching of components under load
Large gate diameter and generous venting
Permits short injection and hold times
Resin is exposed to less stress during injection
Thread splits manufactured from corrosion resistant steel
Gate thermally insulated from hot runner nozzle and aggressively cooled
Low crystallinity in the gate area of the preform
Cavity and core manufactured from highly conductive, tough and wear resistant steel
Fast and efficient cooling
Highly resistant to mechanical failure
Wet area maximized in gate, cavity, thread splits and core
Fast and efficient cooling
Cooling water channels in gate, cavity, thread splits and core, designed for turbulent flow at minimum flow rates
Ensures fast and efficient heat exchange between steel and water
Chilled water pump consumes less energy
Requires a smaller flow rate pump
Cooling channels of cavity and core plated for lifelong corrosion resistance
No deterioration of cooling rate over time
Large channel diameter for chilled water transport in mould base
Low pressure drop in water distribution channels resulting in energy conservation
Less pressure demand on the pump
All stack components hardened to over 50 HRC and cryogenically treated
Highly wear resistant
Resistant to plastic deformation and changes in dimensions
Cryogenic treatment increases wear resistance and toughness beyond what is possible with a conventional hardening process
Long service life
PVD coatings (optional)
Extremely wear resistant to protect surfaces from wear
Easier ejection with lower ejection forces
Mold base plates hardened and plated for corrosion resistance
Highly rigid to withstand clamping forces without deformation
Provides adequate support to stack components
Extremely resistant to corrosion
Long service life
Ergonomic
Cores, core lock rings, thread splits, and cavity lock rings can be changed with the mould in the machine, for quick and easy servicing
Only one chilled water inlet and outlet for each mould section, with distribution channels drilled into the mould base plates, for quick mould change and low probability of water leakages
Quick coupling connectors for quick mould change
Cavity Spacing as low as 50 mm x 120 mm (micro-pitch) for thread diameters of up to 30 mm
Permits the use of higher number of cavities for any machine size for higher productivity
Standardization of components
Reduction in spares inventory for a group of moulds
Easy servicing
Customized to fit any appropriate hot runner
Customized to fit any injection moulding or ISBM machine
Support
Comprehensive training provided to customer’s technicians in mould and hotrunner maintenance as well as PET processing
Professionally competent company technicians for mould commissioning, and training at the customer’s factory
Standard wear parts are kept in stock for immediate shipment