How to quickly, economically, and efficiently clean cast iron or light metal castings with deep holes has always been a headache for many automotive and other vehicle parts manufacturers. The same problem plagues engine block and cylinder head casting manufacturers. Under production pressure, how can they thoroughly clean the internal cavities of cylinder blocks and cylinder heads while maintaining an economically viable production speed? The diversity of products means that the workpieces to be processed have different sizes, weights, and varying numbers and shapes of cavities, as well as hard-to-reach internal "blind channels," all of which make cleaning extremely difficult. Previously, most foundries used cage-type shot blasting machines to clean engine blocks and cylinder heads. This system is suitable for the production of single products, but when cleaning workpieces of different shapes and sizes, it requires changing the corresponding tooling each time, resulting in wasted time and limited production capacity. Some domestic shot blasting machine suppliers manufacture robotic cleaning systems, but due to technological bottlenecks, they cannot overcome the inability to control the shot blasting form and intensity, causing some precision and fragile workpieces to suffer irreparable surface damage due to excessive impact force. Furthermore, the sealing of the shot blasting chamber and the handling of the sand and gravel removed are issues that domestic equipment manufacturers have not yet been able to resolve. As a global expert in surface treatment, Wilberite (Group) deeply understands its customers' needs. Its classic robotic shot blasting system is specifically designed and built for engine block and cylinder head manufacturers, and is highly praised and favored by customers. One of its features is high throughput, minimal tooling changes required, and strong versatility, capable of handling a wide variety of workpieces of different sizes and shapes, including cylinder blocks, cylinder heads, large crankshafts, and gearbox housings. Professionalism is evident . To meet the specific requirements and process specifications of different customers, each robotic shot blasting system from Wilberite (Group) is custom-designed. Thorough research, discussion, and simulation tests are conducted before design to ensure zero-error alignment with customer expectations. Through thorough communication with customers, all parameter values ​​and process standards are confirmed, including workpiece type, size, weight, areas to be cleaned, how the workpiece enters the shot blasting chamber, the most ideal shot blasting method, and how to integrate with the customer's existing production line, etc., and the machine design is based on this. In addition to these factors, the selection of electrical components, PLC control system, hardware equipment, maintenance procedures, power requirements, on-site installation space, local environmental standards, and operator safety will all be considered in the design. Working Principle The Wilberite (Group) robotic shot blasting machine consists of two main parts: a workpiece feeding and discharging system and a shot blasting chamber system. These two independent systems ensure that other batches of workpieces can be loaded and unloaded simultaneously during shot blasting, achieving continuous and high-speed production. Workpieces are placed on a feeding conveyor roller and fed into the shot blasting chamber. A hydraulic positioning lever with positive stop positioning and a pneumatic centering and aligning device ensure the correct clamping and positioning of each workpiece. The casting is lifted and fed onto the robotic arm's grippers. These hydraulically controlled grippers hold the part and rotate under PLC program control, performing shot blasting cleaning. After shot blasting, the casting is caught by the other side's gripper and sent to the discharge roller conveyor, exiting the shot blasting chamber. The patented blasting head is the core of the shot blasting machine. The number, power, and position of the turbines are specially designed and verified through simulation tests by the technical center. For robotic shot blasting equipment, the PLC system control unit monitors many aspects of the entire production process to ensure that specific production requirements and process specifications are met. Closed-loop control can synchronously feedback monitoring data, ensuring that every action of the machine is accurate and smooth, and achieving high repeatability. A user-friendly touchscreen not only provides control functions but also allows for program modification, system monitoring, and error diagnosis and reporting. Inside the shot blasting chamber, the robotic arm grips the workpiece. According to the programmed parameters, the electronically controlled abrasive chamber door opens, and the abrasive is fed to the blasting head. The centrifugal force generated by the rotating blasting wheel propels the abrasive onto the surface of the part. The preset PLC program controls the rotation mode of the grippers, ensuring that all surfaces and cavities of the part are fully exposed to the shot stream and thoroughly blasted. PLC programming can also enable the robotic arm to rotate continuously or pause at a certain angle, extending the blasting time for that area. This concentrated, targeted, and directional shot blasting capability ensures that all complex cavities and channels inside parts are thoroughly cleaned. The robotic arm can rotate 360 ​​degrees clockwise and counterclockwise or stop, flexibly and thoroughly cleaning all surfaces of the workpiece and easily removing residual abrasive particles from internal holes. The workpiece is then automatically unloaded from the shot blasting chamber. Another advantage of Wilberite (Group) equipment is its low maintenance requirements. The highly wear-resistant shot blasting chamber and head materials extend the lifespan of spare parts, thereby reducing maintenance costs and machine downtime for repairs. Founded in 1908, Wilberite (Group) has specialized in and focused on surface treatment for over 100 years, providing the most suitable solutions for industrial customers worldwide.