New toy - Arburg injection moulder
New toy, 20 ton Arburg injection moulder. Vintage 1985 but low mileage and didn't cost a lot.
Next job is to see if I can CNC a mould for it. The parts for making moulds seem very cheap compared to the price of moulds, it must be difficult :beer:
http://www.robinhewitt.net/arburg.jpg
Re: New toy - Arburg injection moulder
Looks good. Looking at buying one myself but need to understand some terms?
I guess the tonnage relates to how much plastic you can push?
What is the platen? Also how can you work out the size of object you can make. ie. can you make a bucket with your machine?
thanks
Re: New toy - Arburg injection moulder
Tonnage is the force applied to clamp the mold together. The bigger the mold the more tonnage you need to hold the mold together and prevent the plastic from running out of the shut lines ( flash). This machine is too small to make a standard builders buckets, a limiting factor for the part size is the distance between the tie bars. If the bars are too close together you can't get the mold into position. The machine would need to open up wide enough to eject the bucket.
Injection pressure is another factor, bigger machines can squirt more plastic before the liquid plastic begins to solidify. If you have thin walled parts this is even more important as the thin areas will cool faster and block any more plastic getting in to fill the mold.
Re: New toy - Arburg injection moulder
It's also a 5yr old thread and probably in a scrap yard now. .:hysterical:
Re: New toy - Arburg injection moulder
Hi,
thanks for the answer. I am looking at buying a machine, any chance you are available for a call one day for some advice?
Thanks
Re: New toy - Arburg injection moulder
Quote:
Originally Posted by
gavztheouch
bigger machines can squirt more plastic before the liquid plastic begins to solidify.
You don't have an injection speed control? How passé
:friendly_wink:
Hi Progomez
You want to make sure you get a copy of the manual with your moulder, without that you are totally screwed.
Depending on the diameter of the plasticizer screw fitted the manual will give you the shot volume. I have an 18mm screw which gives me usable shot volume of 19cc's.
good luck
Robin