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Robotic Abrasive Blasting Booth
Robotic abrasive blasting booth is an automated surface treatment workstation that deeply integrates industrial robots, intelligent control systems with traditional sandblasting technology. It uses a closed sandblasting room as the carrier, and through a high-precision robotic arm equipped with a spray gun, it performs fully automatic, programmable, and highly consistent sandblasting (or shot blasting) operations on workpieces, completely replacing the traditional manual hand-held sandblasting operation.
Manual blasting is inherently limited by human factors, including operator fatigue, inconsistent nozzle operation, and ergonomic constraints. This is particularly true when using large-diameter nozzles (>12 mm), which require greater reaction force and precise trajectory control. These limitations directly affect the uniformity of surface profiles, process repeatability, and overall production efficiency.
To address these challenges, we have developed a fully automated robotic sandblasting system, specifically designed for industrial-scale surface treatment. The system operates in a high-pressure direct pressure mode (typically 6–8 bar), enabling stable use of large-aperture nozzles while precisely controlling the spray distance, impact angle, and movement speed.
advantages:
- Continuous unmanned sandblasting operation reduces the working cycle time by 40–60% compared to the manual method.
- With a 6-axis industrial robot featuring an IP67 protection rating, sub-millimeter path repeatability (±0.05 mm) is achieved.
- Optimize abrasive utilization through a closed-loop abrasive management system
- Double-chamber pressure sandblasting tank, equipped with automatic feeding and pressure regulation functions, ensuring stable sandblasting intensity
Overview
We boast 20 years of extensive expertise in the engineering design, manufacturing, and turnkey delivery of robotic abrasive blasting booths. Featuring robust construction and excellent adaptability to the harsh operating conditions of blasting environments, our robotic abrasive blasting systems require minimal maintenance, delivering exceptional reliability and performance to customers.
Advantages：
1. User-Friendly Operation
A single operator can easily control the entire system. After a brief introductory training session, anyone can operate the robot via a joystick—no prior professional knowledge of robotics is required.
2. Enhanced Safety
Manual blasting booth is extremely physically demanding, harmful to health, and fraught with safety hazards. In contrast, our robotic abrasive blasting system significantly reduces the risk of work-related injuries and the rate of sick leave among operators.
3. Superior Surface Quality
Our robotic abrasive blasting solution eliminates the risk of human error, ensuring consistently high-quality surface treatment results. By precisely controlling the blasting angle and pressure, and matching the optimal abrasive media, the system achieves the desired surface cleanliness and roughness standards accurately.
Parts of a standard spinner hanger blasting machine
1) Wheel blast cabin
The blast cabin of the spinner hanger blasting machine is the volume in which the main blasting action occurs. The media is ejected out of the blasting wheels and impacts the products to be blasted. The cabin supports all other functional modules and is built sturdily to ensure long life.
Special high abrasion and wear resistant Austenitic manganese steel plates are used as lining on the inner surfaces of the blast cabin which offers up to three times its surface hardness during impacts without increasing the brittleness (unlike other materials which exhibits increased brittleness with increasing hardness ). This lining ensures that the particles hitting the cabin surfaces do no damage the blast cabin and offers long life time of the machine. Disa International sources its materials through trusted line of European supply chain and OEMs . Over 45 years in the industry implies that the quality of the materials are highly reliable and durable which makes Disa a natural choice for highly productive, long enduring quality workmanship.
2) Automated doors with dust seals
The doors are automatically actuated to reduce the manual effort by the operators and also ensure good sealing against dust leakages. The top of the doors are provided with openings to enable transport of the products into and out of the blasting cabin. These openings have specially designed rubber flaps and sluices to ensure blockage against dust leakage.
3) Safety barrier and service platform
The spinner hanger blast machine can be provided with a safety barrier in front of the machine for added personal safety. Special sensors are placed on the barrier and if a person enters the zone between the machine and the barrier, the system stops by safety override.
To access the media cleaner and the elevator top for service actions, a safety ladder and a platform is provided. These are built strictly according to EU regulations/directives for machine building with utmost attention to safety.
4) GN blast wheels
The patented GN Wheel turbine or blast wheel is an outcome of intensive research and development which offers jaw dropping performance specifications which no other competitor can match. These blast wheels are arranged in a carefully selected orientation to achieve full coverage on the products.
Up to 70% higher blasting efficiency, 10 times longer life expectancy of the blades and 3x longer service life of the blast wheel is something that the GN blast Wheels offers. It is also extremely suitable for blasting with angular steel abrasive media which are usually detrimental to other types of blast wheels on the market.
Due to the deep knowledge developed during the R&D phase of GN Wheels, our experts tune the area of coverage by the wheel to get the maximum benefit in terms of using less number of wheels. Along with the other benefits listed, the GN wheel offers the quickest return on investment and a long life thereafter.
5) Overhead conveyor system / Spinner hanger system
Based on the shape, size , quantity, surfaces to be blasted, throughput of the product, several spinner hanger systems are offered:
- Single monorail with Y, I or O track type with simple doors front side
- Pass through monorail or carrousel type with double doors both side
- Pass through monorail type with sluices
6) Screw conveyor and elevator
The shot blasting equipment has a system which enables the continuous recovery and the reconditioning of the grit or abrasive media from the system to reuse the blast media. Once the grit or the blast media has impacted the part surface and thus dissipated most of its kinetic energy while accomplishing the abrasive action, it is collected from the bottom of the hopper-shaped chamber and then transported via a scroll conveyor to the bucket elevator.
This elevator lifts the grit up to the cleaning unit. It consists of a vertical housing with a pulley in the elevator head and a pulley in the elevator base. An endless belt on which steel cups are mounted runs over these pulleys. These cups scoop the abrasive media in the elevator foot, transport it to the elevator head and dump the abrasive media in the outlet towards the media cleaner. To know more about the elevator system click here.
7) Abrasive media cleaner and silo
The transported abrasive from the elevator enters the abrasive media separator through a chute. Large contaminants in the blast media are stopped by a permanently installed (but removable) sieve. Subsequently, the blast media is collected behind a distribution valve and distributed as much as possible over the width of the cleaner. The blast media or the abrasive then falls like a curtain through an air stream and is thus dusted (Windsifter). The cleaned abrasive falls into the silo. The air flow takes the dust to the separate extraction (pre-separator) where it is separated and collected in a dust bag. This results in a perfectly reusable grit in the lower storage silo ready to be transported to the turbines by means of adjustable, electro pneumatic valves. To know more about our special cleaning system and variations thereof click here.
8) Labyrinth and dust extraction system
Due to the impact of the abrasive media on the products some of the abrasive breaks and along with this, due to the erosion / wear effect on the product scales, rust, etc. are released and referred to as dust. The dust extraction system “sucks” out the particles in the cabin along with the air during which the particles can find its path through the extraction vents. Specially designed baffle plates and labyrinth is incorporated to capture the lager particles. Relatively larger particles strike the baffle plate and lose their kinetic energy which eventually will fall down due to gravity. Smaller dust particles which are still air borne passes through and reaches the dust extraction system where they will be removed from the air stream by the filter cartridges.
9) Dust extractor
Carefully chosen fans in the dust extractors create the necessary flow and pressure to extract dusty air from the cabin and the abrasive media separator. The dust extractor which houses specially designed baffle plate and filter cartridges to ensure that the exhaust air is clean and the dust is collected at the bottom of the dust extractor. Generally, the standard filter unit/dust extraction system has a cleaning efficiency of 99.9%. For special applications and stringent requirements, Disa closely works with the parent company Disa to offer a wide spectrum of solutions.
More information about extraction system can be found here.
Types of overhead conveyor blasting machines
Clearly understanding the customer needs and thinking for the customer is the first step for Disa to offer perfect abrasive blasting solutions. A standard wheel blast machine which offers great flexibility and covers a wide range of products shapes and size may not be suitable for a particular product.
Every client is unique in terms of their factory layout, process, material handling, available infrastructure, space, foot print, integration with processes and throughput among many other factors. As a first step, Disa walks through with the client to understand their requirements clearly and helps the customers by offering most viable solutions. Some of the modified versions of the spinner hanger systems as shown below which clear gives an impression of how Disa strives to offer the best solutions to our clients.
References
Over 40 years Disa has been providing bespoke solutions to clients worldwide. From valued individual clients to multinational companies, from single installations to complete inline solutions for large foundries and paint shops we offer a wide spectrum of solutions based on our clients needs. Feel free to browse through our reference sections for more details.