Advantages of rotational molding manufacturing. Rotational molding manufacturing method offers many advantages compared to other manufacturing techniques and plastic forming methods. · Production cost reduction: The molds used in this process have lower cost than other plastic molds due to their simplicity. Also, the pressure at which work is performed is lower than the pressure used in other techniques. Therefore, the mold is manufactured from cheaper raw materials. · Rotational molding technology is easily used for small quantity production. · Hollow pieces that are completely closed can be produced and pieces containing openings can be produced. · Rotational molding does not require subsequent finishing operations. · Product weight and thickness can be easily controlled. · Possibility of producing uniform thickness for all surfaces using rotational molding method. · Grooved pieces can be easily produced. · Pieces of different sizes can be produced using rotational molding method. · Reducing surface warping and twisting. · Good surface finish is obtained on surfaces manufactured by rotational molding. · Metal inserts can be added to molded plastic. Types of machines: Single-arm molding machines, Three-arm molding machines, Shell rotational molding machine, Grinding machine: Two-stage grinding disc, Bearings, Cooling system for rotating disc, Control panel, Vibrating screening device, Optional equipment