山推 STR20-5

Technical Features ● It’s equipped with Weichai WD12 engine and three-stage air filter and is additional fitted with anti-scalding device, featuring higher efficiency and better energy-saving. ● The imported bearings for the transmission and main drive and the friction plates of higher skid and wear resistance and better anti-pollution capacity are adopted to achieve more excellent operating performances of the trimming bulldozer. ● The cooling system adopts enlarged water tank and straight-through type core. The three-point (up and down) shock-absorbing installation for the radiator features higher stability. ● The lifting cylinder of the hydraulic system adopts the bushing cap structure, featuring convenient maintenances. ● The electric circuit design of the whole machine adopts the water-proof circuits and water-proof fuse case. It’s additionally fitted with oil temperature, oil pressure, and water temperature alarms and reversing alarm. ● The floating oil seals within the guide wheel, carrier roller, and track roller can prevent the ingress of dusts and the leakage of lubricating oil to guarantee the high durability. ● The working device is controlled directly by the valve stems, featuring high reliability, lightness, and rapidness, and the locking mechanism features easy and reliable operations. ● The full box-type main frame features high carrying capacity against impact load and bending moment and the high quality welds guarantee the life cycle of the main frame. ● New cab features good sealing performance and low noise and the instruments are reasonably arranged to realize convenient and rapid operations. Performance Parameters Overall dimensions(mm) 6468×3352×3063 Operating weight (kg) 21000 Engine model WD12 Net power/rated speed (kW/rpm) 149/1950 Track plate width (mm) 510 Ground pressure(Mpa) 0.063 Blade width/height (mm) 3175/950