Fully adopting the hardened gear, the Gear Box is compact in structure, small in volume, light in weight, nice in appearance, stable and less noisy in operation, high in bearing capacity, strongly
resistant towards impact, and long in service life. The input shaft ensures synchronization of two sets of Gear Boxs via the coupler connection. HK 309 Gear Box is applicable to Bonfiglioli 1.5m3
concrete mixer, and the left and right rotation of the mixed are equipped with one set of Gear Box, separately. The Gear Box adopts 30KW*2 power and four-pole motor.