All machinery could be suitable for extract oil from the kinds of plant seeds for bio-fuel diesel oil, after filting, final oil is used to tractor, diesel engine, truck, etc.
And the raw materials of biodiesel could be waste oil!

Transesterification
The oil filtered is triglycerides, containing glycerine. The biodiesel process turns the oils into esters, separating out the glycerine. The glycerine sinks to the bottom and the biodiesel floats on top and can it could be got for the biodiesel oil.

The process is called transesterification, which substitutes alcohol for the glycerine in a chemical reaction, using lye as a catalyst.

We supply for the bio-fuel oil mill as 50L-50, 000 L /day.