Recently, a fully automatic hook-type shot blasting machine customized for a Russian client was successfully installed, commissioned, and officially put into production. The delivery of this equipment marks another significant milestone for our company in the Russian market and provides strong support for improving the client's production efficiency.
This client is a local Russian company specializing in the manufacture of heavy machinery parts. Their main products include large castings, forgings, and welded structural components, widely used in mining and construction machinery. With the continuous growth of orders, the client has placed higher demands on the efficiency and quality of surface cleaning of workpieces.
Before introducing a specific case, let's briefly explain the applicable workpiece range of hook-type shot blasting machines to help understand why the client chose this model.
Hook-type shot blasting machines suspend workpieces in the blasting chamber using hooks. During rotation, the workpieces are subjected to shot blasts from multiple shot blasters at different angles, cleaning outer surfaces, internal cavities, and deep holes. This working method makes it particularly suitable for the following types of workpieces:
Complex-shaped workpieces: Such as engine blocks, gearbox housings, pump bodies, valve bodies, and other castings with internal cavities and deep holes. The suspended rotation method of the hook-type shot blasting machine allows the shot to enter the internal cavities and deep holes from multiple angles, resulting in a more thorough cleaning.
Workpieces susceptible to impact: Workpieces that have undergone precision machining or surface treatment, have threads, thin walls, or are otherwise susceptible to impact damage. Workpieces are suspended independently, preventing contact with each other and avoiding collision damage.
Large, single-piece workpieces: Including large castings, forgings, welded structural parts, and frame-like components. These workpieces are heavy and not suitable for batch processing in tracked equipment; the hook-type shot blasting machine simplifies loading and unloading operations.
Workpieces requiring surface strengthening:For example, gears, crankshafts, connecting rods, and other parts subjected to alternating loads. Shot blasting can form a compressive stress layer on the metal surface, helping to improve the fatigue strength of the workpiece.
The client's existing equipment was a semi-automatic hook-type shot blasting machine, which presented the following problems in actual use:
**Multiple Manual Operations:** Opening and closing the door, starting shot blasting, and loading and unloading workpieces all required manual operation, resulting in long downtime.
**Poor Sealing:** Frequent door opening and closing caused rapid wear of the sealing strips, leading to dust leakage and impacting the workshop environment.
**Curious Parameter Adjustment:** Cleaning parameters for different workpiece sizes required manual adjustment, demanding high operator skills and a long learning curve for new employees.
The client desired a new machine with a higher degree of automation, reducing manual intervention and improving production efficiency.
Based on the client's workpiece characteristics and production needs, our technical team customized a fully automatic hook-type shot blasting machine for them. The main configuration is as follows:
**Automatic Door Opening and Closing System:** The door is pneumatically driven, enabling automatic opening and closing. After the door closes, an interlock signal is automatically triggered, and shot blasting can only begin after confirming a proper seal, effectively preventing dust leakage.
**Automatic Shot Blasting Control** The equipment is equipped with a PLC control system, which can preset cleaning parameters (blasting time, speed, shot volume, etc.) for different workpieces. Operators only need to select the corresponding workpiece number, and the equipment will automatically complete the entire cleaning cycle, including closing the door, starting shot blasting, stopping shot blasting, and opening the door. This function frees operators from tedious manual operations.
**Dual Hook Alternating Operation Design** Equipped with a dual hook system, one hook cleans inside the shot blasting chamber while the other hook loads and unloads outside, enabling continuous operation, reducing equipment downtime, and further improving the utilization rate of the hook-type shot blasting machine.
**Automatic Fault Monitoring** The system is equipped with sensors to monitor the equipment's operating status in real time. When an abnormality occurs, it automatically alarms and displays fault information for quick troubleshooting.
**Intelligent Parameter Storage** It can store multiple sets of process parameters, allowing one-click switching between different workpiece specifications, reducing setup time.
After the equipment was put into operation, the customer's production efficiency significantly improved. The single cleaning cycle was shortened compared to the original equipment, and the number of operators was reduced from multiple to one person to complete the entire process control. Operators reported that the automatic door opening and closing system and automatic shot blasting control significantly reduced labor intensity. Dust emissions from the workshop were reduced, and the working environment was noticeably improved.
The client's production manager stated, "This fully automatic hook-type shot blasting machine met our expectations for automation upgrades. Operators only need to hang the workpiece and press the start button, and the equipment can automatically complete the entire cleaning cycle, greatly saving labor costs."
The fully automatic hook-type shot blasting machine delivered this time, through its automatic door opening and closing system, PLC automatic control, and dual-hook alternating operation configuration, helped the client achieve an automated upgrade of the cleaning process, improving efficiency while enhancing the working environment. This case also further validates the advantages of hook-type shot blasting machines in cleaning complex shapes, collision-sensitive materials, and large single workpieces.
Our company will continue to monitor the equipment's operation, providing timely technical support and after-sales guarantees to ensure the long-term stable operation of the equipment.
For more information on the technical parameters or customized solutions for fully automatic hook-type shot blasting machines, please contact our technical team.
A: Fully automatic hook-type shot blasting machines are particularly suitable for cleaning complex-shaped castings (such as engine blocks, gearbox housings, pump bodies, and valve bodies), precision workpieces susceptible to impact, large single-piece workpieces (such as large castings, forgings, and welded structural parts), and parts requiring surface strengthening (such as gears, crankshafts, and connecting rods). Workpieces are suspended on hooks and rotate independently, without contacting each other, avoiding collision damage.
A: It is mainly reflected in three aspects: automatic door opening and closing system, automatic shot blasting control, and intelligent parameter storage. The machine's actions such as closing the door, starting shot blasting, stopping shot blasting, and opening the door are all automatically completed by the PLC control system. Operators only need to select the corresponding workpiece number to start the entire cleaning cycle with one button.
A: The dual-hook configuration allows for alternating operation, with one hook cleaning inside the shot blasting chamber and the other loading and unloading outside, reducing equipment downtime and improving equipment utilization. For large-scale continuous production, the efficiency advantage of the dual-hook configuration is particularly significant.
A: No. The hook-type shot blasting machine features a pitless design, requiring only placement on a flat, solid surface. Installation is simple and suitable for additions or retrofits in existing workshops.
A: Workpieces cleaned by the fully automatic hook-type shot blasting machine will have their surface oxide scale and rust completely removed, exhibiting a uniform metallic luster. Cleanliness can reach Sa2.5 level, providing a good adhesion foundation for subsequent coating.
A: Yes. Our company can customize the hook load capacity, shot blasting chamber size, number and configuration of shot blasters, and automatic control system functions according to the workpiece size, weight, and cleaning requirements.
A: Standard configuration fully automatic hook-type shot blasting machines are typically delivered within 30 to 45 working days after order confirmation. Customized configurations may require longer delivery times depending on complexity; please contact our sales team for details.
For more information on the technical specifications or customization options for fully automatic hook-type shot blasting machines, please contact our technical team.
