The popular Macsimizer, the half-round aluminum end dump trailer from Mac Trailers, has been redesigned to increase capacity and improve stability.

Mac's design team has increased the trailer's payload to 60 cu. yd. and the side heights to 74 in. to make a “hi-cube” trailer that provides volumes competitive with square dump configurations. The design also maintains the benefits of a quick and even load release common with the half-round design.

A lower center of gravity through a structurally redesigned front end increases stability, and the engineers have been able to maintain a tare weight of less than 10,000 lbs.

The trailer is also available with a stainless steel liner for more abrasive loads.