Discharge blockage frequently happens when hauling wet clay, weathered soil, fine sand, caked ore and sticky muck on aggregate tipper trailer, rock dump trailer and muck tipper semi trailer. Blocked bulk cargo increases hydraulic load, causes cylinder overload, body deformation and brings jackknife rollover risk. This guide suits quarry and muck haulage fleets in Africa and Middle East.https://www.hjtrailer.com/truck/dump-truck/red-12-wheel-dump-truck.html
- Clean residual caked material on floor and side panels before loading, keep tipper box dry to reduce material adhesion.
- Fit anti-stick wear liner or apply anti-stick coating for sticky cargo, reduce bonding force between wet clay and tipper floor to prevent sticking and blockage.
- Control moisture content of bulk material. Over-wet clay easily forms arching bridge, which is the main cause of tipper bulk material arching. Dry material in advance if possible.
- Adopt staged slow lifting instead of one-time maximum tipping angle. Raise and lower the box slightly repeatedly to loosen arched material by self-weight.
- Use long pole to disturb stuck material safely from rear opening for light blockage. Never enter the tipper box to poke material, avoid burial hazard from collapsing cargo.
- Lower the box smoothly once severe arching or bridging occurs. Do not keep forcing lifting, which leads to overpressure, cylinder damage and tractor front lift.
- Keep box warm or preheat in cold winter. Frozen wet bulk material hardens and cannot slide down freely.
- Clean residual buildup around discharge gate and tailgate hinges regularly. Jammed tailgate debris causes false discharge blockage.
- Choose dry and firm discharge ground. Damp compacted bottom material sticks tightly on floor and blocks unloading.
- Install hydraulic vibrator for frequent sticky cargo transport. Vibration helps break material arching, widely used for mining and muck fleets.
- Keep tractor and trailer in straight line during tipping. Offset angle causes uneven pile and worsens blockage and off-center load.
- Do not operate tipping valve sharply to impact stuck cargo. Sudden high pressure may burst hydraulic hose and damage tipping hinge bracket.
