BS428变速箱为机液控制变速箱，具有4个前进挡和2个倒退档，通常与YJ315系列变矩器分体安装，配合使用，其特点是结构简单，节能减噪，工作可靠，操纵方便和传动效率高的特点。BS428变速箱应用于3吨装载机、矿山机械等工作环境；

BS428 is a Mech-Hydraulic controlled gearbox, with 4 Forward and 2 Reverse Gear. This gearbox usually be installed separately with YJ315 series converter. Its High-Reliability, Easy-to-Use and high efficiency. It was widely used in 3-Ton class loader and various mining machine.

Fixed-Shaft, Constant Meshed gearbox with hydraulic powered gear shifting 

1、最大输入转速2500 r/min

2、最大输入扭矩1100N•m

3、最大输入功率90kW

4、配套变扭器零速变矩比3.0～3.6

5、变速箱型式定轴、常啮合、液压/拨叉换档