Recently, a suspended chain shot blasting machine customized by our company for a Russian client was successfully installed, commissioned, and officially put into production. This equipment can be linked with the spraying and drying processes to form an integrated cleaning-spraying-drying production line. This successful delivery marks a further expansion of our company in the Russian market and provides an efficient solution for the surface treatment of large-volume workpieces in the local automotive parts and hardware industries.
This client is a large Russian automotive parts and hardware manufacturing company. Its main products include various small castings, stampings, fasteners, and hardware tools, widely used in automotive manufacturing and building hardware. With the continuous growth of orders, the client has placed higher demands on the surface cleaning efficiency of large-volume small workpieces. The client wanted the new equipment to achieve continuous, automated operation and seamless integration with subsequent spraying and drying processes.
Before introducing a specific case, let's briefly explain the applicable workpiece range of the suspended chain shot blasting machine to help understand why the client chose this model.
The overhead conveyor shot blasting machine uses a continuous conveyor chain. Workpieces are suspended on the chain and pass through the blasting chamber at a uniform speed, receiving shot from multiple blasters at different angles. This continuous flow operation is particularly suitable for the surface treatment of the following types of workpieces:
**Large batches of small workpieces:** Including small castings, stampings, fasteners, and hardware tools. The overhead chain allows for continuous transport, suitable for large-scale continuous production, with efficiency far exceeding that of single-machine operation.
**Workpieces with regular shapes suitable for suspension:** Such as small gears, flanges, pipe fittings, and brackets. Workpieces suspended on the conveyor chain receive uniform impact on all surfaces as they pass through the blasting chamber, resulting in consistent cleaning.
**Workpieces requiring in-line processing:** Suitable for direct in-line processing with subsequent cleaning, spraying, and drying processes, forming an automated production line.
**Standard parts for mass production:** Such as bolts, nuts, washers, and pins. The overhead conveyor shot blasting machine can suspend a large number of workpieces at once, achieving high batch processing efficiency.
The client's existing equipment was a standalone hook-type shot blasting machine, which presented the following problems in actual use:
**Efficiency Insufficient to Meet Capacity Needs** The hook-type shot blasting machine requires manual loading and unloading and operates in single batches, making continuous production impossible and becoming a bottleneck for capacity improvement.
**Poor Process Coordination** After cleaning, the parts need to be manually transferred to the spraying and drying processes, resulting in long transfer times and impacting overall production efficiency.
**High Labor Costs** Each process requires operators, leading to continuously rising labor costs.
**Inconsistent Cleaning Results** Standalone operation is heavily influenced by operator skill, resulting in variations in cleaning results between different batches.
The client desired a new machine that could achieve continuous, automated production and integrate with subsequent processes to improve overall efficiency.
Based on the client's workpiece characteristics and production requirements, our technical team customized a suspended chain shot blasting machine and a matching spraying and drying system. The main configuration is as follows:
**Suspended Chain Conveyor System** A suspended conveyor chain is used for continuous transport, allowing workpieces to pass through the shot blasting chamber at a uniform speed. The conveyor speed can be adjusted according to workpiece type and cleaning requirements, enabling continuous assembly line operation.
**Multiple Shot Blasting Unit Layout** Multiple high-efficiency shot blasters are configured at different positions in the shot blasting chamber, projecting the workpiece from multiple angles to ensure uniform impact on all surfaces of various workpieces, achieving thorough cleaning without blind spots.
**Automatic Control System** The equipment is equipped with a PLC control system, which can preset parameters such as conveyor speed and blasting time, enabling continuous automatic operation. Operators only need to suspend and unload workpieces in the loading and unloading area.
**Integration with Spraying and Drying Processes** The overhead conveyor system directly delivers the cleaned workpieces into the automatic spraying chamber. After spraying, they enter the drying channel, forming an integrated cleaning-spraying-drying production line without intermediate transfers.
**Intelligent Variable Frequency Control** The shot blasters use variable frequency speed control, which can adjust the blasting intensity according to workpiece type and cleaning requirements, ensuring cleaning effectiveness while reducing energy consumption.
**High-Efficiency Dust Removal System** Equipped with a high-efficiency cartridge dust collector, the shot blasting chamber maintains a negative pressure state, and the dust emission concentration meets local Russian environmental standards, ensuring a clean working environment.
After the equipment was put into operation, the customer's surface treatment efficiency for large batches of small workpieces significantly improved. The continuous overhead conveyor system enabled a streamlined operation from cleaning to spraying to drying, greatly increasing production capacity compared to the previous method. No manual transfer is required between processes, significantly reducing labor costs. Cleaning results are stable, with a substantial reduction in batch-to-batch variations.
The customer's production manager stated, "With this overhead conveyor shot blasting machine linked to the spraying and drying process, our cleaning process has become completely continuous. From the moment the workpiece is attached to the conveyor chain to the completion of cleaning, spraying, and drying, the entire process is automated, resulting in a significant efficiency improvement."
The overhead conveyor shot blasting machine delivered this time, through its continuous overhead conveyor system, multi-shot blaster layout, PLC automatic control, and linkage with the spraying and drying processes, helped the customer upgrade from single-machine operation to an integrated cleaning-spraying-drying production line, significantly improving efficiency and reducing labor costs.
This case also further validates the core value of the overhead conveyor shot blasting machine in continuous cleaning of large batches of small workpieces and production line integration. Our company will continue to monitor equipment operation and provide timely technical support and after-sales guarantee for our customers.
A: Overhead chain shot blasting machines are suitable for continuous cleaning of large batches of small workpieces, including small castings, stampings, fasteners, hardware tools, small gears, flanges, pipe fittings, standard parts, etc. Workpieces are suspended on a conveyor chain and continuously pass through the shot blasting chamber, suitable for assembly line operations.
A: Hook-type shot blasting machines operate as a single machine, with workpieces remaining in the shot blasting chamber for cleaning, suitable for small to medium batch, multi-variety production. Overhead chain shot blasting machines operate with continuous conveying, with workpieces being cleaned during transit, suitable for large-scale continuous production and offering higher efficiency.
**A:** The overhead conveyor system directly feeds the cleaned workpieces into the automatic spraying chamber. After spraying, they enter the drying channel, forming an integrated cleaning-spraying-drying production line. Each process is controlled by a PLC, achieving continuous automatic operation without manual handling.
**A:** After cleaning with the overhead conveyor shot blasting machine, the oxide scale and rust on the workpiece surface are completely removed, presenting a uniform metallic luster. The cleanliness level can reach Sa2.5 standard, providing a good adhesion base for subsequent spraying.
**A:** The overhead conveyor shot blasting machine adopts a pitless design. It only needs to be placed on a flat and solid ground. Installation is simple and suitable for existing workshops for additions or renovations.
**A:** Yes. Our company can customize the overhead conveyor length, number and configuration of shot blasters, conveyor speed range, spraying system configuration, and drying system configuration according to workpiece size, production requirements, and site conditions.
A: Overhead chain shot blasting machines are typically delivered within 30 to 45 working days after order confirmation. If the machine involves a coordinated spraying and drying system, the delivery time may be extended accordingly. Please confirm with our sales team for details.
For more information on the technical parameters or customized solutions for overhead chain shot blasting machines, please contact our technical team.
