Development of a Variable-chamber Round Baler for Chopped Materials (Part 1)

——Study of Baling System and Trial Manufacture——

Abstract

We have developed a variable chamber round baler for chopped materials, specifically for use with a TMR baling and wrapping system. The prototype is based on a roll baler for chopped materials (bar-chain type, diameter 0.8 m). The prototype was able to form TMR roll bales 0.9 m in width and 0.8-1.0 m in diameter. It was possible to obtain well-shaped roll bales weighing 278-491 kg, with a standard deviation of 8-16 kg for each set diameter. The dry matter density exceeded 380 kg/m³.We were able to seal the roll bales using a commercially available bale wrapper. However, the movement of the prototype at the set diameter of 1.0 m was unstable, making improvements necessary.