I need a spare part made

My name is Peter Wright and I work for J Hellyar Plastic compounding in the UK.. We do work for Whirlpool, Indesit, Gratnells and lots of smaller firms .We have been in business for over 60 years. We have a old Eurovent bulk mixer which is one of serval mixers we have. We use them for mixing dyes in and on this one the plug /plunger which fits onto the discharge Shute .Its made from a plastic centre with a metal plates each side with a fixing threaded centre which the ram screws into. I a drawing but it wont let attach to this. If you sent a email I can send to you to check it out. Regards Peter Wright Engineering department Hellyar Plastics