Sany Concrete Mixer Truck 1. Powerful Sany 6×4 Chassis Performance First of all, we build this mixer truck on a dedicated Sany dual rear axle chassis marked CLW5250GJBS. It adopts the 6×4 drive layout with a total gross vehicle weight of 25,000 kg. Besides, a 336 HP National V diesel engine matches a 10-speed manual gearbox to deliver stable torque …