Shuttle machine is one kind of rotomolding machine.It has two arms or we call two stations.In the center is a oven(heating room).When one arm is heating in oven the other other can do cooling or assemble and disassemble the molds.So it’s efficient.Shuttle machine is most suitable for big products.With two supported for each arm,it has big loading capacity.The natural gas,LPG,diesel are all commonly used as the machine energy.You can choose which is suit for your local place.