I support and sell Speedfam Thru Feed grinders. I worked for Speedfam for 21 years as a process engineer, so I have a great understanding of all equipment sold by Speedfam which is now Peter Wolters. If you have questions regarding process or repair of Speedfam and Spitfire equipment, please contact me. I currently have in stock, a TFG with only 30 hours on it. It includes a 375 gallon paper bed filter, transfer tank with a magnetic seperator. The equipment was built in 2002, and the TFG includes the digital hydraulic cylinders, and drop thru de-mag . A new machine from Peter Wolters will set you back over 225k, You can buy this one for 115k. Includes one year warrenty.