Batch centrifuge/hydroextractor for pulp washing

Anyone who know where I can find/buy a stainless steel
centrifuge/hydroextractor to be used for dewatering/washing of
mechanical pulps? It has to be of batch type and load something
between 5 and 20 kg o.d. pulp. I would prefer a new one, but could
consider a second hand machine depending where in the world it is
located.

Thank you!
Thomas G. 
Sweden