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Like others have said, 2 seconds is pretty short for parts other than in micro-molding applications or very thin walled stuff where it's mostly just fill speed involved with really little packing....

Thanks Joel. I'm using a bit over 55% of my .95 oz barrel.
Thank you too Chris. I will check this out next time the mold goes into the press.

How critical or important is the material's stock temperature when it goes into the feed throat of the molding machine?
For instance, if your loader on top of the injection unit is rather large, and...

Some hopefully small viscosity difference from one lot of material to another, in quality materials anyway, is to be expected. How much of a change is considered normal in the real world?
J Newman

Anyone else using or at least familiar with this particular model? Ours will sometimes give very strange results and I am having a hard time figuring out what it's doing.
In the past I was told that...

A properly chosen and properly used purging compound would most likely be cheaper and more effective than what it sounds like you are doing. Why does your company not want to use a purge compound? ...

Most problems I have encountered were due to the widely varied temperatures of the two different plastics involved. I overmolded a nylon substrate with Santoprene but had very hard time getting the...

Others...
Negra Bossi
Ferromatik Milacron
Engel
Haitian

iOS version available yet?

I sampled a mold the other day that had just returned from having the cores and cavities coated with some sort of micro coating in order to tweak some dimensional issues. The project engineer tells...

I have a very simple mold making small, flat, thin disks and they get vacuum stuck to the end of the ejector pins and will not fall during ejection. I have tried all sorts of weird ejection profiles,...

I have used the Tempro plus D series from Wittmann with excellent results...

Wittmann makes some that can go up to 325° F with water. I switched out all molds from oil to the water at a previous employer and was very glad to have done so. Much easier, cleaner, and safer when...

Well thanks for responding Arik, even though it was not particularly what I was hoping to hear. I'm told that these settings are very important as far as valve response goes but cannot find anyone...

Of course the answer to that question is zero. You cannot mold it one time without losing "some" properties. However, if you cascade it, as was mentioned earlier, you will be basically out of...

Are there any Van Dorn HT Series experts out there that could give me a brief, or lengthy, explanation of the tuning functions on one of these machines. I think a lot of my problems could be solved...

Thanks Suhas and Rick. I'm of the opinion that it is true, you could hold to a .03" cushion on the smaller machines IF they are capable of doing that in the first place. Some of mine are not, I'm...

Again with the old Van Dorn HT series questions, right? I'm new here, remember that, and I am seeing more and more things that just don't sit right with me and they are starting to become my...

Thanks guys. The mold was back in and doing the same thing. When it will not decompress while on cycle, I put machine in manual and tried pulling the screw back. It still would not go. I pushed the...

You can see it trying to decompress, it just does not seem to have the ooomph to get there. Then the cycle times out afterward.
It has plenty of time, just not the ability.

The melt temp idea...

Recently moved and started a new job and I am running Van Dorn HT series machines that I have not seen in many years. I have an issue where a mold starts up, runs ok for a little while, then starts...