Automated casting and molding production of crane pulley castings

In 2018, we equipped a customized automated casting molding machine for a lifting equipment accessory casting enterprise, which was used for automated casting molding production of pulley castings for cranes. The casting enterprise originally used manual sand mold molding. Due to the aging of molding workers and difficulties in recruiting employees, the person in charge of the casting enterprise inspected and learned about ZOOMZU's automated casting molding equipment after attending the casting exhibition held in Beijing, China in June 2018. After careful discussion with us, we summarized that its casting molding production technology and cost requirements were very suitable for our product equipment. Finally, at the exhibition, we ordered the automated casting molding machine and entrusted it to us for all related workshop renovations;

The foundry has re planned the original casting workshop and installed an automated casting molding machine with a size of 750mm X 750mm sand molds. The completed sand molds are transported to the designated track by a small car carrying the sand molds, and then the cylinders push the sand molds and the carrying car together into the preset pouring track;

The casting effect of the crane pulley is achieved through an automated casting molding machine, and the compactness of the sand mold is around 80-88. Due to the grooves and chamfers on the side of this type of casting, a coated sand core needs to be placed; The pouring hole and exhaust hole of the molten metal are located at right angles to the sand mold;

The crane pulley casting molds used in the automatic molding mechanism for sand molds are pictures of the lower sand box mold and the upper sand box mold, respectively

This is the sand mold placed on the pouring track for cooling after pouring. When the operator starts the automated casting molding mechanism to make the sand mold during the day, the newly completed sand mold will be pushed by the cylinder to the tail end of the pouring track by the sand belt, or the poured sand molds arranged on the pouring track can be pushed into the tail drop sand belt in one go by the operator.

The casting blank of the crane pulley obtained from the sand mold after casting and cooling, as well as the casting effect pictures after grinding and shot blasting cleaning, are made of gray iron 15-33 (HT), with multiple models and specifications, and different diameter sizes. The maximum diameter of the crane pulley casting produced by the 750mm X 750mm automated casting molding machine is 685mm;