This rotomolding machine is suitable to make large size, hollow and regular shape plastic tank, for exampleroundverticaltank, round horizontal tank, square tank, etc. it is open flame. RR-5000 can make the tank, up to 5000Liters capacity. This machine can make much larger tank such as 10000Lites, 20000Liters and so on. This machine is easy to operate and need less investment.