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The molten plastic ( PA66 / PA6 ) will run from the nozzle, sprue, main runner, sub-runner of the injection molding
machine. And then it acrosses the cavity gate, cavities till the end of the cable tie tail. Most of this path is narrow and
flat with lots of cavities.
PA66/PA6 is melted in the high temperature, around 260ºC. In such path, the temperature will keep reducing and
make the melt solidify. And that further builds the resistance against the forwarding of molten plastic.
Therefore, the mold temperature is always the main element that the mold maker and operator should consider. On
the other hand, because the heat will accumulate with time, a cooling water runner is necessary as well.
Each cavity requests a ejector. But the dense ejector will affect the water runner's layout.
Cost issue of the cable tie mold
As we discuss above, cable tie is of various types ( different sizes, designs ), so does the mold. It's very necessary
to keep the mold cost in a reasonable level. Otherwise, it will increase the cost of cable ties.
The main solution for that is to apply the standard parts as more as possible, especially for the inserts and the
ejectors. Because the mass production of inserts and ejectors can be remained at a low cost.
The main production place of these standard parts is LEQING, Zhejiang, the central cable tie production central.
Cold runner or Hot runner for the cable tie mold
The hot runner mold for cable tie what we call is just the semi-hot runner, since there are too much cavities in one
mold, it is impossible to realize the real hot runner for each cavities. Normally 2 hot points located in the main
runner.Actually, in the hot runner mold the plastic melt is advancing from the injection molding machine nozzle to
location of the runner of these hot points. That will benefit the molding a lot, especially in the case of uneven raw
materials and machines with wear and tear of different extent.
We supply high quality self-lock nylon cable tie mould, including cold runner cable tie mould and hot runner cable
tie mould, with the range of cable tie length from 80mm to 1200mm.
All moulds are customized as each customer's cable tie samples or drawings. We offer solutions that help
customers start manufacturing nylon cable ties and optimize cable ties molding.
Specification of our cable tie mold
The mold temperature for cable tie injection molding is the key point.
PA66/PA6 melt at a relatively high temperature with a great fluidty. At the same time, the high mold temperature will
help the melt plastic run in a narrow space.
But if the temperature is too high, the plastic will degrade.
Besides, the fluidity and temperature are highly correlated. So the cable ties near the sprue part may easily produce
flash, which is a common phenomenon. What's worst, flashes have appeared while the farthest cavities have not
yet been filled full.
Moreover, there's another issue, that is, the design of each gate and the air exhaust exit, to which we should pay
much attention.
The mold test can reflect many problems. Hence, the mold must be tested and sample carefully studied by
experienced professionals.
What can we do for customers?
Provide turnkey project service for nylon cable tie production, including cable tie injection molding machines, cable tie
moulds, auxiliary machines, robot arm & conveyor belt, cable tie packing machines….
Help experienced makers optimize cable tie molding process and production parameter setting.
Offer In-site installation & debug service, online technical training& support.
What is ordering process?
Step 1: Please let us know the cable tie sizes you'd like to manufacture. Or send your cable tie samples to us by
courier. An detailed price sheet is going to be offered soonest.
Step 2: Mould drawings will be given after order confirmation.
Step 3: Start production after mould drawings confirmed
Step 4: update mould production scheduling
Step 5: do trail running for new cable tie moulds and send new samples to customers.
Step 6: customers confirm samples.
Step 7: packing and shipping
What is warranty period?
As provider for turnkey solutions, we offer one-year warranty period for all our machines and moulds. Within the
period of warranty, free technical support and free spare parts will be provided with the quickest response.
Out of warranty period, technical support service will be offered with the quickest response.
Besides, some special value-added service will be offered to our VIP regular customers.
As part of our manufacturing upgrade, we have launched a more advanced series of high-precision cable tie moulds
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