PET preform Mould with 48 cavity hot runner valve gate PCO28mm neck
preform PET preform injection mold
PET Preform Mold Features
1. There are 4 cavities up to 72 cavities on PET preform mold.
2. Electric control system with simulating stretch testing improve
3. Adopt world advanced dipole taper localization technique, each
cavity self-clamp independently, ensure mold concentricity.
4. The material of mold die core and die cavity are made of Sweden
special mold steel.
5. International standard screw neck, imported nitrided steel with
high hardness is of long usage.
6. Advanced hot runner design and even heating temperature make
sure the high quality of plastic products.
7. Valve gated type without tail reduces labor force.
8. At least 3 million guarantee.
PET Preform Mold Design
We designs not only preform with standard neck size for water
preform, carbonated drink preform and oil preform, also design
preform of special shape responding to customer’s request. We
adopts a wide range of computer-aided engineering service from
design conception to the finished products to make customer
Our preform injection mold adopts an advanced valve-gate unit,
which is used to control the mold’s injection hole open & close
on each cavity. Reliable sealing function, smoothing moving, low
thermal expansion rate, and long using life are its main features.
Patent designed rectifying system for preform’s wall thickness
The patent designed rectifying device is equipped to rectify the
preform thickness during preform production. The preform thickness
can be adjusted below 0.05mm.
PET preform mold with double heating system ensures perfect heating
effect. It has separate temperature control mode: the heater bars
are used to heat the mold’s manifold plate; the small heaters are
used to supply the continuous heating temperature for cavity
A specially designed cooling system with perfect cooling effect for
each inner parts including core, cavity and valve gate system of
Hengxin preform injection mold.
Hot runner system
preform injection mold adopts specially designed hot runner system
to achieve ideal and prompt heating effect for preform production.
Lager flowing channels of such hot runner system ensures the mold
to produce preform with lower injection pressure, which reduces
mold’s each part’s wear & tear and maintenance cost, and also
saves electric energy.
Steel material and machining tools
Mold cavity and Core are made of imported mold steel with fine
polishing, high hardness and anti-corrosion to guarantee mold's
high precession and good quality.
Digital Control Lathe, EDM, jig-boring machine and high-precision
grinding machine have been used on mold machining. High machining
precision and fast machining speed ensure Hengxin’s high quality
After mechanical treatment, enhance steel’s strength and prolong
mold service life. For example, we coat chrome on the mold plate
surface for rustproof purpose and go on nitrogen treatment on neck
part to increase its hardness. Special coatings also are available
at our Machinery. With right operation, PET preform mold at least 3
Each set of PET preform mold undergoes strict mold trials before
shipping from factory and attaches full set of parameter that is
recorded depending on their own and sole serial number. Together
with the PET preform mold, full set of spare parts will be supplied
for free to keep mold normal working. In the use of the PET preform
mold, Hengxin provides adequate spare part to any request and
Hengxin service department are very willing to provide technical
support immediately for any possible request in any time.
PET Preform Mould Main Components Specification and Advantages
Specification and Advantages
2316 steel from Sweden
high-quality special mould steel from sweden (HRC >45) gurantee
3 million shots without any maintenance
S136 steel from Sweden, HRC >60,
International standard screw neck
2316 steel from Sweden
Each cavity have an independent temperature controller
Each cavity self-clamp independently, ensure mould concentricity.
P20 Steel material from Germany
Hot runner plate
S136 Steel material from Germany
specially designed cooling circuits
Proper design reduce molding cycle time to 15 seconds( with proper
water chiller and injection machine) about 3-5 shots per minute
Hot runner design
make sure the high quality of preform products.
valve gated design with Automatic drop
each cavity has its independent heating zone and temperature is
measured by independent thermocouple. .(advantages: easily avoid
some problems such as white or draw bench on bottom).
Valve gated type without tail reduces labor force.
Precessed by high presion CNC machine and numerical control loathe
Lowest weight and dimensional variation
thickness between max. part and min. part is not more than 0.05mm
make sure that every parts can match well