Austin Allen Gnat 250 User Manual

[Roger the Dodger]

Hello, I have just joined site, as I have just purchased an old Austin Allen Machine. I am now looking for a manual for this machine so I can get to understand it better in the hope of restoring and using it.

[Roger the Dodger]

Hi thanks for your questions, I have not had any response, so no luck on the info. It is not working, I bought it as a little project with the intention of perhaps getting it working. But not not desperate. It is air operated with a double air cylinder, which has been dismantled for transporting.(not by me though). I currently work in plastic moulding. But these are few and far between.

[scooterist007]

Well no replies surely means that no one knows the machine in question! So what is your question/issue? Do you have any mechanical/electrical experience?

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[Roger the Dodger]

I asked the question 6 months ago, i am looking for a manual on this machine, as stated in my previous thread. No I'm not very good with machine electrics, but i am a Toolmaker by trade since doing my apprenticeship all those years ago. I have made a mould for my Austin Allen Machine in fact I've made many at various jobs for these machines. That is the main reason for buying it in the first place. But i wasn't made aware it was kept in a shed and going rusty through lack of use, care and attention. Bought off of ebay. But it is single phase and im hopeful i may just get it to work.

[m_c]

The problem you'll have getting any information for injection machines, is very few people really know about them, and those that do very rarely want to share what they know :-/

You could try posting over on the CNC zone moldmaking forum - https://www.cnczone.com/forums/moldmaking/

[scooterist007]

Well I presume that you have done a Google search? I appreciate that you asked the question 6 months ago, but considering the amount of people on this forum, it's always going to be a needle in a haystack reply. If you're only asking if anyone has any information or a manual, I think you have your answer. I'm not trying to be rude so please don't I am, being an engineer by trade and hobby, I would have great fun in restoring it.

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[Roger the Dodger]

You could try posting over on the CNC zone moldmaking forum - https://www.cnczone.com/forums/moldmaking/

Thanks i will have a look here.

[Roger the Dodger]

Well I presume that you have done a Google search? I think you have your answer. (YES) Being an engineer by trade and hobby, I would have great fun in restoring it.

No i did not do a search, but i will now. Yes i was thinking it would be a good project. As if i needed a new project. I've got too many already. But thanks anyhow.

[Roger the Dodger]

I have a friend that recently experienced this issue on a mold and a sales person from Taiwan just so happened to be there talking about molds. (https://www.tigerkj.com/en/products/central-material-conveying-system)The sales guy showed my friend a product that sounds like it would be perfect for you.

Hi i am not sure who you are referring to when you say it would be perfect for you. Is it me or someone else? As it is not clear.

[kwc_usa]

Hello, I have just joined site, as I have just purchased an old Austin Allen Machine. I am now looking for a manual for this machine so I can get to understand it better in the hope of restoring and using it.

I ran across this when doing a search for austin allen. Which version of the Austin Allen machine do you have? Hydraulic or pneumatic? I have a pneumatic machine (gnat 250) and a copy of the manual which I could scan and send to you. It might take me a while to get it scanned into a pdf. kwc

[Roger the Dodger]

I ran across this when doing a search for austin allen. Which version of the Austin Allen machine do you have? Hydraulic or pneumatic? I have a pneumatic machine (gnat 250) and a copy of the manual which I could scan and send to you. It might take me a while to get it scanned into a pdf. kwc

Hi my machine is also an air gnat 250. So if it would be possible for a scan, i would be most grateful. Thanks Roger.

[kwc_usa]

Hi my machine is also an air gnat 250. So if it would be possible for a scan, i would be most grateful. Thanks Roger.

I'll work on getting the manual scanned into a pdf file. Might take me a day or two. kwc

[kwc_usa]

Hi my machine is also an air gnat 250. So if it would be possible for a scan, i would be most grateful. Thanks Roger.

I've attached a pdf of the instruction manual I have. I also have a set of drawings but they are full size and I don't have a way to scan. If you need a particular drawing I may be able to scan it into several pages and you can reassemble the pages to full size after printing.

My machine is slightly different from the instruction manual. Mine has an additional injection cylinder that can be piggy-backed onto the original cylinder to increase the injection pressure capacity. I don't think the manual shows this option. I also have the core unscrewing option but I've never tried it. It requires a plug in relay that I don't have. Right now I don't have a use for that option anyway. Mine does not have the sentry alarm system hooked up to alert temp and operation faults. The previous owner made some modifications and disconnected that part of the system. I'll try and find a few photos and upload them later. Hope the manual helps. I had to scan at a slightly reduced resolution to keep the file size down.

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[Roger the Dodger]

This is great kwc. So far the pages i have printed off have been really good and clear. Thank you very much. Your machine looks great. Mine is a light green (original hammer finish) and is not in great condition. I do have a few empty steel mould blanks which i made a few years ago in advance of getting a machine. Maybe i will get time play. Thanks Roger.

[kwc_usa]

Roger, glad to hear the instruction manual is working out. My machine was originally green also. Sometime along it's life it was painted blue. The inside of the control cabinets are still the original green. Mine was in poor condition when I acquired it. I spent about 4 months taking things apart and cleaning it up. The cylinders had water in them and the injection unit had been stored outside with just a plastic wrap over it. I had to get new o-rings for the cylinders. These had to be custom made since no one here in the US had the exact size required and the cost to import from the UK was too high for me. Take care and hope you get yours up and running. kwc