... structure display:W Z 160main parameter: theoretical productivity: 160 m3/hsecond feature:loadingfirst feature:excavating(2). Technical parameters ModelItemWZ-160 ... In the tunnel construction, WZ160 backhoe loader is suitable for tunnel section above 3.5m2. Work face demands better ... loader usually loads rock ballast with loose density ≤1.8t/m3, hardness < 12, when the ballast hardness rises, it ...