Pitless Roller Conveyor Shot Blasting Machine

A pitless roller-type shot blasting machine is a highly efficient metal surface treatment device widely used in industries such as foundry, metallurgy, machinery, and the automotive industry. It is specifically designed to remove scale, rust, oil, sand, and other impurities from workpiece surfaces. Compared to traditional cleaning equipment, this machine's key advantage is that it requires no pit, making it suitable for sites with limited installation space and convenient on-ground installation, saving significant construction costs.

This machine utilizes a roller conveyor system, with an automated control system for workpiece loading, unloading, transport, and cleaning. The high-speed rotating shot blaster sprays steel shot and other particulate matter onto the workpiece surface, achieving uniform and efficient cleaning. This pitless roller-type shot blasting machine is ideal for mass production, especially when processing small and medium-sized metal workpieces, providing excellent cleaning results and high performance.

▶ Product Structure

Roller Conveyor System
The roller conveyor system is the foundation of this equipment. It transports workpieces into the cleaning chamber via a series of rollers and a transmission mechanism. Unlike traditional chain conveyors, roller conveyors can carry heavier workpieces, provide smooth transport, and reduce wear. Workpieces rotate automatically during transport to ensure uniform cleaning of the surface.
Shot Blasters
The shot blasters are the core working unit of the equipment. They accelerate steel shot and project it onto the workpiece surface using high-speed rotating impellers. The number and angle of the shot blasters are optimized based on the size, shape, and cleaning requirements of the workpiece, ensuring uniform cleaning of every workpiece surface. The shot blaster design ensures efficient and consistent cleaning results.
Cleaning Chamber
The cleaning chamber is the area where the workpiece and shot blasting come into contact. It is typically sealed to prevent shot blasting and minimize environmental pollution. The surfaces within the cleaning chamber are made of wear-resistant materials to withstand the impact of shot blasting from the shot blasters and effectively extend the service life of the equipment.

Shot Recovery System
Since steel shot is continuously consumed during the shot blasting process, the recovery system collects the shot from the cleaning chamber, cleans and screens it, and then returns it to the storage bin for subsequent use. This recovery system not only effectively reduces steel shot consumption but also reduces waste generation, lowering operating costs.
Electrical Control System
The pitless roller conveyor shot blasting machine is equipped with a modern electrical control system that precisely controls parameters such as shot wheel speed, shot flow rate, and roller conveyor speed. The system also features fault alarms, automatic adjustment, and monitoring functions to ensure efficient and stable operation.
Dust Removal System
During the shot blasting process, the steel shot generates a certain amount of dust, which the dust removal system efficiently absorbs and filters. Through a multi-stage filtration system, the dust removal system not only maintains a clean interior but also effectively reduces environmental pollution, meeting modern environmental standards.

▶ Advantages

Reduced Construction Costs
Unlike traditional pit-type shot blasting machines, this pitless design eliminates the need for excavation and underground construction, allowing it to be installed and operated above ground, significantly reducing construction costs and time. It is ideal for production environments where space is limited and efficiency is crucial.
Efficient Cleaning
The machine uses a high-speed rotating shot blaster to spray steel shot onto the workpiece surface, quickly removing impurities such as scale, rust, and oil. The cleaning effect is uniform and thorough, significantly improving the surface quality of the workpiece, making it particularly suitable for high-volume production.
High Adaptability
The pitless roller conveyor shot blasting machine can be widely used to clean a variety of workpieces, including castings, forgings, and steel structures. The flexible roller conveyor system allows it to handle workpieces of various shapes and sizes, making it particularly suitable for cleaning small and medium-sized workpieces.
Energy Saving and Environmental Protection
The machine is equipped with an efficient shot recovery system that recycles steel shot, reducing raw material consumption. A dust removal system effectively reduces dust pollution generated during the shot blasting process, meeting environmental requirements. The overall design focuses on energy conservation and consumption reduction, resulting in low operating costs.
High Level of Automation
The pitless roller conveyor shot blasting machine is equipped with an advanced automated control system that automatically adjusts cleaning parameters based on workpiece requirements. The operator simply sets the cleaning parameters, and the machine automatically completes the workpiece cleaning process, significantly improving production efficiency.
Reduced Labor Costs
Due to the machine's high degree of automation, the workpiece cleaning process requires minimal manual intervention, reducing the difficulty and cost of manual operations. The operator is primarily responsible for daily monitoring and maintenance, reducing labor intensity.
Extended Equipment Lifespan
Constructed of highly wear-resistant materials, the pitless roller conveyor shot blasting machine can withstand the long hours of operation and impact of steel shot, ensuring a long service life. Furthermore, the steel shot recovery and dust removal systems effectively reduce equipment wear and maintain long-term stable operation.

▶ Application Industry

▶ FAQ

What types of workpieces are suitable for pitless roller conveyor shot blasting machines?
Pitless roller conveyor shot blasting machines are suitable for surface cleaning of small and medium-sized metal workpieces, such as castings, forgings, and steel structures, and are particularly well-suited for mass production. The machine's roller conveyor system can be flexibly adjusted according to workpiece size, meeting the cleaning requirements of workpieces of varying shapes and weights.

How can I improve the cleaning efficiency of a pitless roller conveyor shot blasting machine?
The key to improving cleaning efficiency is to properly adjust the shot blasting wheel speed, shot flow rate, and roller conveyor speed. Regular inspection and maintenance of the shot recovery system to ensure efficient operation can further enhance cleaning results. Furthermore, ensuring the proper functioning of the dust removal system helps maintain cleanliness and stable operation of the equipment.

How should I perform routine maintenance on a pitless roller conveyor shot blasting machine?
Routine maintenance primarily involves checking the operating status of the shot blasting wheel, roller system, and shot recovery system. Regularly check the electrical control system to ensure proper operation. Perform a monthly inspection and a comprehensive maintenance every three months to lubricate and replace worn parts. Clean the dust removal system regularly to ensure efficient operation of the equipment.

Jiangsu Jiheng Technology Co., Ltd. is located in Yancheng City, Jiangsu Province, a pearl on the Yellow Sea coast and home to the world's rare elk and red-crowned crane. Yancheng is crisscrossed by the Coastal Expressway, the Ningjingyan Expressway, the Xuhuaiyan Expressway, and the Xinchang Railway, which runs north and south. The city also boasts an international airport with over ten direct flights to South Korea, Thailand, Taiwan, and other countries, offering convenient transportation and advanced communications.

The company specializes in the research, development, manufacturing, and installation of coating and environmental protection equipment.

We provide one-stop services from concept development, design, manufacturing, installation, and commissioning to ensure product quality. We also have an experienced product design team to ensure the technological sophistication of our entire product design. We have already delivered high-quality projects for multiple manufacturers.

Adhering to the business philosophy of prioritizing technology, optimizing management, and keeping pace with the times, we are dedicated to providing customers with coating equipment, mobile spray painting, drying equipment, dust removal equipment, ventilation equipment, and complete coating production lines. Customer requirements are our driving force for continuous improvement. We will continue to strive for technological leadership, superior quality, and integrity, striving to provide our customers with high-quality, environmentally friendly products.
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