Conical Rounders Home › Customer Services › Parts › Conical Rounders Specialized Parts The spiral trough in which the dough balls travel around the conical table consists of a polymer base and a PTFE-coated sidewall. Both are complex, compound shapes and intricate angles are involved. The base must fit extremely closely to the conical table. Any deviation will cause chipping which results in waste and additional cleaning. PTFE coated parts cannot be adjusted on site. Baker Perkins parts are machined to fit exactly. Suppliers without product and process knowledge may supply parts that result in chipped or misshapen dough pieces. Why Choose Baker Perkins? Genuine Baker Perkins parts are made to the original specification with the re-assurance of full process and technical support from the Original Equipment Manufacturer. They can be fitted without adjustment or modification. The parts we supply always offer the best value for money, and they all carry a 12-month warranty.