Powered by a Honda 32cc 4-stroke engine, Pro 3200 screed design transfers power to the beam through a high-strength aluminum alloy casting. The operator is isolated by four vibration-absorbing mounts, and the engine is protected by a wrap-around frame. The wide beam combined with a newly designed eccentric vibrator rapidly moves the concrete and produces a high-quality smooth surface. Northrock Industries. 800-989-8423. www.northrockindustries.com .