... than 20 countries 1. Gearbox is made up of hydraulic motor, multi-disc friction braker and planet gearbox ... 12-12500/B-F-K-Y three grade hydraulic transmission is specially developed for pump trucks,shipping ... adopts the separate design of hydraulic motor, brake, three grade decelerator, shaft and hydraulic control system, thus acquiring ... .1–580 ZCM Two, Three, Four Grade Hydraulic Transmission(Gearbox)