HR series of new small and medium-sized injection molding machine (90-250 tons) of Hengrun Plastics Machinery in 2004, a new class of small and medium Commodities, the largest series injection molding machine is characterized by good performance plastics, as was first adopted in the injection unique structure, large, Screw small aspect ratio remains unchanged, solved the same type due to the increase in diameter screw may affect mixing plastics and high performance problems. Modelocking new body design, using hollow box templates, extended orientation, mobile template used roller bearing, rigid good, light weight, Friction small, open mold faster, more rational structure. Using machinery insurance-mode security posts at the bottom and install, take up less space and are not regulated, more secure and more convenient. Oil System using split-type valve plate and quick and convenient maintenance. Adopt new exterior design of the whole closed, oil, electricity, water lines more rational distribution, aesthetics.