Founded in 1995, Zidong Machinery Manufacture Co., Ltd. is a professional China injection moulding machine manufacturer and designer in researching, developing and design all kinds of machines, equipment, lathe, machining, automatic and tools. ISO9001:2000 certified, we follow strict quality management criteria to provide high quality and cost efficient products. And We have gotten CE, GS and EMC approvals. We devote to carving CAD/CAM technology and CNC numerical control technology research OEM injection moulding machines and development. By adopting assembly technology and choosing fine materials, We have moved towards good stability and gets the position in advertisement, woodworking and metal mold industries.

Essentially, injection moulding is die-casting for polymers. It is normally automated and used for high speed, high volume production where component quality does not need to be high - over 50% of polymer parts are produced this way.
The mark left by the ejector pin can often be seen on cheap mouldings. To increase the shapes possible, sophisticated dies with moving and unscrewing inserts are used.
Thermoplastics dominate, but can also be used for thermosets, rubbers, polymer foams and short-fibre composites.
Can make intricate shapes, though not suitable for thick sections.
Typical part sizes are 100-600g, although parts up to 25kg can be made at great expense.
Parts generally do not require finishing, although parts for feeders etc. may require removal.
A wide variety of surface finishes and embosses can easily be incorporated into the die design.
Thermoplastic scrap is easily recycled, but other materials must be disposed of carefully.
To reduce costs, several parts are often moulded together on a "tree-like" structure; parts can then be separated after moulding.
The cycle time is limited by solidification time and time to open and close the mould. Production rates from 1-20 parts/minute are readily achievable.

a) LCD computer control with big display screen
b) Hydraulic double proportional valve
c) Hard chrome plated high tensile strength steel tie bars
d) Generous space for fitting large moulds
e) Large opening stroke
f) Two position transducers to control clamping and injection
g) Four stages of injecting, independent velocity and pressure control
h) Hydraulic mould height adjustment device
i) Screw cold - start prevention device
j) Melt decompression control
k) Screw back pressure control
l) Multiple hydraulic ejection
m) Differential area high speed clamping
n) Centralized lubrication system
o) Low pressure mould protection device
p) Mechanical safety interlock
q) Double electrical safety interlock
r) Oil return filter
s) Oil tank with inner stainless steel container

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