Rotochopper RG1 Asphalt Shingle Grinders Asphalt ...
Rotochopper RG1 Asphalt Shingle Grinder Video. The RG1 is the only purposebuilt asphalt shingle grinder on the market. Packed with exclusive features, the RG1 offers lower wear costs, more uptime, and higher efficiency than any other machine used to process asphalt shingle waste.