JS500 mixer is a double horizontal shaft forced concrete mixer, suitable for mixing dry and hard, plastic, flowing, lightweight aggregate concrete and a variety of mortars. The rotary drum is provided with high-manganese liner and mixing vanes inside, so the machine is firm, durable and convenient for replacement. It can combine with distributing device to form different mixing stations, and is suitable for a variety of large and medium prefabricated component factories and construction sites, roads, bridges, airport, tunnel, etc. The machine has the advantages of reasonable design, compact structure, convenient operation, reliable work, good mixing quality, high productivity, low energy consumption, small noise, and long lifespan of wear parts.