Horizon’s perfect binder program today ranges from small compact automated machines with one clamp to in-line machines that can occupy a whole hall and consist of six-hopper gatherer, seventeen-clamp perfect binder, and a three-knife trimmer. Horizon’s special competence is still in the field if small machines wit one and four clamps, where three models deserve special attention – BQ-470, BQ-270 and BQ-160.