Designed for high volume pre-screening and speciality composting operations, the largest portable trommel in McCloskey’s line of screening equipment (the 733 model) has been extensively re-engineered to utilize the company’s patented Drum X-Change system. By replacing the trommel’s chain drive with the Drum X-Change system’s wheel drive, the 4x4 733 trommel eliminates costly service requirements while achieving significant improvements in productivity and flexibility.