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Innovators in wheel blasting technology
DISA has 30 years of experience in the metal surface treatment industry, specializing in customized shot blasting solutions designed to meet customers’ specific requirements and operating conditions.
We are CE and ISO 9001 certified.Our extensive range of shot blasting systems meets the diverse needs of various customers, and with decades of experience, we deliver maximum value by reducing your maintenance costs, enhancing equipment reliability, and increasing profitability.
Disa wheelblasting machines equipped with high-performance blast wheels reduce downtime, lower spare parts costs, minimize abrasive consumption, and ensure consistent product quality.
Disa high performance blast wheel deliver ideal flow properties, ensuring high throughput and excellent blasting performance with a wide, uniform hot spot for outstanding results.
Disa provides customized, wear-resistant shot blasting machine parts that minimize wear and extend service life, reducing replacement frequency and lowering procurement and maintenance costs.
Disa high-performance shot blasting system comprises several critical components that work together to ensure efficient, consistent, and reliable surface treatment.The main elements include:
Inner wall shot peening machine for bottle
Working Principle of the Shot Blasting Machine：
Abrasives continuously enter the impeller of the shot blasting unit through the feed inlet, where they are accelerated and projected onto components moving along the conveyor. After impact, the used abrasives fall through a perforated grate into a hopper at the bottom of the blast chamber. A screw conveyor transfers them to a bucket elevator, which lifts the media to the top of the machine.
There, an air separator removes dust and fines, while the cleaned abrasives are stored in a feed bin and returned to the blast wheel via the abrasive control gate.
Dust-laden air is extracted from both the blast chamber and separator by a dust collector. Clean air is discharged through a blower, while collected dust is emptied into a container via a star-shaped rotary valve at the bottom.
Disa shot blasting machine: the components
The blasting cabinet housing consists of three steel layers: an 8 mm mild steel outer shell, an 8 mm manganese steel inner lining, and an additional 10 mm manganese steel wear plate at hot spots. All layers are bolted from the outside for easy replacement.
Of very high output, built in cast steel with a high chrome alloy that is highly resistant to abrasion, they are statically and dynamically balanced and ensure high productivity in the most different applications. The blast wheels feature a valve that allows precision adjustment of the amount of abrasive material to be thrown by them.
such as roller conveyors, overhead monorails, or turntables,move parts steadily through the blast zone for uniform cleaning, descaling, or surface preparation. The choice of system depends on part size, shape, production volume, and process needs, ensuring smooth integration into automated lines and efficient blasting performance.
The abrasives projected by the shot blasting device fall into the shot blasting chamber. Through holes in the hopper, the abrasives slide onto the screw conveyor, which transports them to the bottom of the bucket elevator.
The elevator conveys used abrasive to the separation system. For easy maintenance, a push button next to the elevator allows manual belt rotation to facilitate part replacement.The elevator are oversized, and are totally sealed, and are driven by gear motors. The elevator buckets are built in cast nodular iron, which is highly resistant to abrasion.
Upper screw transports abrasive from the elevator to the CFS seperator,6mm high-quality carbon steel welding is adopted for the shell.
The air wash separator features the traditional system with adjustable curtain, which can optionally have a screening system (vibrating screens), for applications that require a more precise classification of the abrasive material, for example, with shot peening.
Storage hopper of shot blasting machine is situated under a separator and holds enough abrasive to supply the blast wheels for uninterrupted blasting through the process.
Feed pipes are hoses connecting the storage hopper and blast wheels. Slide gates located under storage hopper can be closed to allow for maintenance. In line with feed pipes are abrasive control valves, located just above the blast wheel Disa abrasive control valves; totally enclosed for noise reduction- pneumatic operation with fine adjustment capability to control the flow and volume of abrasive supplied.
Exhaust system is made of 3mm steel plates, featuring a sturdy and durable structure, a compact overall design, and space-saving for installation. Equipped with the Jet Plus dust cleaning system, it ensures efficient cleaning while significantly reducing compressed air consumption.
Disa electrical control system features a free-standing NEMA 12 / IP54-rated panel with UL-listed and NEC-approved components. It includes a Siemens PLC, touchscreen, and frequency converter, along with Schneider electrical components such as IEC-rated starters, fuses, overload relays, and contactors.
What Is a Shot Blasting Machine?
A shot blasting machine uses high-speed steel shot—thrown by centrifugal blast wheels—to clean, descale, and prepare metal surfaces. Electrically driven wheels propel abrasives onto workpieces (e.g., castings, forgings, plates), removing rust, scale, and contaminants while creating an anchor profile that improves coating adhesion and product durability.
How It Works
Abrasives enter the blast wheel’s impeller, are accelerated, and strike parts moving through the chamber. Used media fall through a grate into a hopper, then are carried by a screw conveyor to a bucket elevator, which lifts them to an air separator. Dust and fines are removed; clean abrasives return to a storage hopper for reuse. A dust collector filters contaminated air from the chamber and separator, discharging clean air while collecting dust via a rotary valve.
Key Components
Blast Wheels: High-efficiency turbines that deliver uniform, high-energy projection with long service life.
Abrasive Handling System: Storage hopper, feed pipes, and precision control valves ensure optimal media flow and minimize waste.
Recycling System: Screw conveyor, bucket elevator, and air separator form a closed loop to recover and clean abrasives.
Dust Collector: Removes airborne particles to maintain air quality and meet emission standards.
Conveyance System: Roller conveyors, monorails, or turntables move parts steadily through the blast zone for consistent treatment, selected based on part geometry and production needs.
Enclosure: Built with wear-resistant steel layers (e.g., manganese liners) and replaceable plates in high-wear zones for durability and easy maintenance.
Control System: Intelligent panel (often Siemens PLC with touchscreen) enables automated operation, monitoring, and safety functions.
Conclusion
Shot blasting machines are essential in metal fabrication, automotive, aerospace, and construction. Combining robust design, efficient media recycling, and smart controls, they ensure reliable surface preparation, extend component life, and reduce operating costs and environmental impact.