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Stone and brick shot blasting machine
Disa Company has unveiled a specialized shot blasting machine engineered for stone finishing and texturing, which transports slabs via a dedicated conveyor into a working chamber equipped with multiple custom-designed blasting wheels that project abrasives onto the surface. By precisely adjusting parameters such as conveyor speed, wheel rotation, and abrasive size—or by employing specially designed templates—users can achieve exact desired textures and finishes. Offering exceptional flexibility, the system supports seamless online integration with complementary processes like stone heating and cleaning, as well as customizable automated loading and unloading solutions, delivering a comprehensive, one-stop approach to stone surface treatment.
Blast System Composition
Stone blocks are loaded onto a rubber or wire belt conveyor system and transported into the working chamber. Inside the chamber, a horizontally mounted shot blasting wheel, precisely aligned with the conveyor, projects abrasives at high velocity onto the stones, ensuring thorough cleaning as they pass through the blasting zone. Once processed, the stones are discharged from the exit end and manually unloaded. The conveyor speed is adjustable, and the machine features transition vestibules at both ends, equipped with multiple layers of rubber curtains to effectively contain abrasive splash. The entire unit is ventilated via a high-efficiency baghouse dust collection system operating under negative pressure.
Advantages:
We designed and produced this shot blasting machine for anchor chains with our unique technology. It is used for cleaning and strengthening rusty anchor chains etc. It has some advantages:
1.High and uniform cleaning efficiency: Anchor chains is transported by the roller table. So that the cleaning is uniform.
2.Simple and accurate chain conveyor: It is very easy to operate when the anchor chains are cleaned.
3.Low maintenance cost : simple body structure can reduce loss, and save maintenance time and costs.
4.Operation is simple and easy: PLC control. The operation panel is touch screen for dynamic display. We can see shot blasting condition very clearly and easily.
Key Features:
1. Direct-drive shot blasting wheels: Consisting of 2 wheels positioned at the top of the blast chamber and 2 at the bottom, designed for efficient and thorough cleaning.
2. Optimized arrangement: Simulation-optimized design ensures one-time, all-round shot blasting and cleaning.
3. High cleaning efficiency: Up to 99% cleaning efficiency for effective removal of contaminants.
4. Traction machine: Pulls cleaned workpieces out of the blast cleaning room.
5. Chain swinging machine: Places the chain in a turnover basket for easy handling.
6. Frequency conversion speed regulation: Allows for adjustable speed control during workpiece traction.
Interior view
Example 1:Xinan Technology
DISA has custom-designed and delivered a high-performance mesh belt shot blasting machine for Xinan Technology, specifically engineered to address the surface treatment challenges of precision aluminum and ferrous alloy castings, including flat, thin-walled, and fragile components. Operating in a continuous straight-through mode, the system integrates automatic loading, unloading, and discharge conveyors, all orchestrated by an advanced PLC with part memory functionality to ensure a seamless and orderly production flow.
The core of the system is a robust metal mesh belt crafted from high-strength, wear-resistant manganese steel. This design ensures that workpieces remain isolated during transit through the blast chamber, effectively preventing collision damage or deformation of delicate parts. High-efficiency blast turbines are strategically positioned both above and below the conveyor, delivering synchronous, all-around coverage that completes deburring, cleaning, descaling, deflashing, and etching in a single pass, thereby significantly enhancing manufacturing consistency and throughput.
The machine features a comprehensive abrasive recovery and purification loop: spent media is collected at the base, conveyed via screw conveyor and elevator to a top-mounted air-wash separator, where clean abrasive is recycled to the storage hopper while dust and contaminants are diverted to a separate silo for disposal. Constructed with replaceable high-wear liners in critical zones, the unit comes pre-wired with centralized dust extraction ports, with an optional integrated dry cartridge dust collector available. This turnkey solution enables seamless integration into Xinan Technology’s automated production line, eliminating intermediate storage, minimizing logistics distances, and reducing both manual intervention and operating costs to achieve high-quality, cost-effective continuous manufacturing.
Example 2:Nemark India PVT Ltd
Recently, Disa successfully commissioned a customized mesh belt shot blasting machine for a global 500 automotive components manufacturer. Confronted with critical challenges—including an extremely compact installation footprint, the demand for continuous 8-hour high-intensity shift operations, and stringent noise emission limits—DISA engineered a precision solution: a robust mesh belt system equipped with eight high-efficiency blast turbines to guarantee stable, high-volume throughput. The machine features an advanced abrasive recycling loop where media, after impacting the workpieces, is collected in a bottom hopper, conveyed via screw conveyor to a bucket elevator, and lifted to a top silo for air-wash separation; cleaned, reusable abrasive is returned to the overhead storage hopper, while dust and contaminants are efficiently discharged. To address strict environmental noise regulations, Disa enclosed the unit in innovative double-skin composite soundproofing panels. These panels incorporate a high-performance acoustic foam core that effectively absorbs and isolates internal blasting noise, preventing external propagation. The resulting system delivers a compact, low-noise, and highly efficient operation, enabling the client to streamline production workflows while significantly enhancing cycle times, productivity, and overall capacity.
Have a quick look at all of the individual components
Inside the blasting chamber, within the direct working area of the turbines, replaceable wear protection plates are installed to ensure maximum durability and consistent performance. The high-performance turbines are strategically arranged at staggered angles both above and below the conveyor belt, guaranteeing that all surfaces of the workpiece receive uniform impact for thorough cleaning. The wire mesh conveyor belt itself is constructed from wear-resistant steel, designed to withstand the intense abrasive environment while maintaining long service life.
After exiting the blasting chamber, workpieces pass through a blowoff device to remove residual abrasive. The abrasive media circulates continuously via a screw conveyor and bucket elevator to the top-mounted cleaning station. Within a specialized air sifting system, dust and undersized particles are discharged from the cascading media curtain through adjustable airflow, ensuring only usable abrasive returns to the system.
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.