No food grade PVC pipe in Malaysia from what I can find. I'll have to do more digging.
What we are doing today is scooping with an ice cream scoop and forming in stainless rings on top of paper separators. Patties are blast frozen on single layer sheets and then stacked in 2x3 boxes 4 patties high, so 24 in a box. It's working, but it takes two people nearly 3 hours today to mince, mix then form and pack 1000 patties.
I'd like to cut this down to an hour. We can mince and mix the meat in 2 batches of 50kg each no problem, but the patty forming and packing seems to be a real bottleneck.
It shouldn't take longer to form and pack patties than it does to fill sausages...
I found a product called Easy Slider from Patty-o-Matic that I can get shipped here fairly quickly that looks like it will work. They can make a custom plate for my patty size and ship by next week. It would mean 4 patties at a time in the press, at a production rate of more than 40 patties a minute. Should easily allow me to compress the entire cycle to under an hour.
Once minced, mixed and rested - which all happens in daily batches for the sausage runs of the day - forming and packing should take 2 people about 30 minutes. I can live with this.