Weichai e masani ona pipii i le taʻiala o le faʻaogaina o oloa-faʻatau ma tupe faavae, ma ua tuuto atu i le atinaʻeina o oloa e tolu faʻatauvaʻa autu: lelei, tekinolosi ma tau. Ua manuia le fausiaina o le atinaʻe faʻatasi i le va o le powertrain (engine, transmission, axle/hydraulics), taʻavale ma masini, logistics atamai ma isi vaega. O loʻo umia e le Kamupani faʻailoga lauiloa e pei o le "Weichai Power Engine", "Fast Gear", "Hande Axle", "Shacman Heavy Truck", ma le "Linder Hydraulics".