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Innovative blasting solutions with maximum efficiency for your perfect surfaces
product overview Solution FinderUnlimited applications â no matter what your requirements
Our shot blasting machines offer you almost unlimited options for surface finishing: from deburring, descaling, de-sanding and rust removal to roughening, cosmetic blasting, smoothing and edge rounding all the way to shot peening. After all, the functionality and aesthetics of surfaces are not only an important sign of quality for technical products, they also contribute significantly to their success on the market. Surface finishing is therefore nearly always essential and has to be integrated into existing production processes as an additional, value-added step.
Not many technical procedures have such a variety of uses as shot blasting, especially when it comes to metal surfaces. However, other materials, such as concrete, sandstone, glass, textiles, wood and plastics, can also be processed with machines from Rösler.
Intelligent, flexible, individual â our offer to you
The range of machines from Rösler includes systems for precise compressed air blasting, wet blasting, as well as turbine blasting with highly efficient turbines, also known as blast wheels. Turbine shot blasting machines, or wheel blasters, are particularly well known for their low energy consumption, large blast coverage area, the so-called âhot spotâ and achieving uniform surfaces.
Injector and pressure blasting systems are especially suited to small area applications and precision tasks, both automated and manual. They also allow the use of highly abrasive media, which cannot usually be used in turbine blasting machines, such as corundum, silicon carbides, glass beads and fine plastic granulate.
Thatâs not all
Choosing a machine from Rösler isnât the end of your journey with us. As your partner, we offer a unique product range that covers everything you need for your surface finishing applications:
- Optimal customer support from our worldwide industry experts together with our sites around the globe
- Use of state-of-the-art simulation tools to simulate and optimize challenging blasting processes
- Digital process monitoring for even more reliable and cost-effective processes
- Expert advice and testing in our worldwide Customer Experience Centers
- State-of-the-art manufacturing sites with a unique in-house production range
- After sales service for shot blasting machines, including individual service contracts and retrofitting advice
- Worldwide support from our own service and application engineers on site
- Training and professional development opportunities for your employees in our Rösler Academy
Professional & individual â we develop your custom process
Thanks to our technical process knowledge developed over many years, our ability to quickly understand complex systems and the large number of tests and simulations carried out in our worldwide Customer Experience Centers, we are in the position to reliably find the best solutions for your requirements. We offer our customers the best possible quality and cost-effectiveness and therefore provide decisive competitive advantages. 90 percent of the shot blasting machines that leave our factory are customer-specific individual solutions. We feel at home in almost every sector. Our branch in France is also a top specialist for the aerospace and automotive industries. Did you know that we also develop customized shot peening solutions?
In surface finishing, the design of the machine and the process used determine the effectiveness and cost â thatâs why we use the latest multiphysics simulation software to optimize and design the blasting processes and the machine technology. You benefit from significant advantages: more effective and quicker processes, less waste, reduced costs and optimized dust extraction for shot blasting.
Innovative, durable, efficient â maximum power for you
Our shot blasting machines boast a long service life, low maintenance requirements and innovative features.
These are not just nice words; they translate into real added value for you. For example, 10mm blast room wear liners instead of the market-standard 8mm, spinner hanger blast machines with manganese plates that are usable on both sides and individually replaceable and highly efficient and effective blast media processing thanks to flow-optimized air separator equipment. We also focus on user-friendly ergonomics with lower working heights for our continuous belt blasting machines as well as easy operation through state-of-the-art controls.
The heart of any shot blasting machine is its turbines (blast wheels). Over the last few years, we have put a lot of effort into further developing these key system components and our patented Rösler turbine technology gives you a decisive competitive edge. Our Gamma turbines enable you to increase performance by up to 20 percent for the same energy input. In addition, using both sides of the throwing blades can reduce operating costs by up to 30 percent.
Digitalization and process monitoring also play an increasingly important role in the field of shot blasting. With Rösler Smart Solutions, we offer our customers a digital solution for all areas of process monitoring. From the quality of the components, to analyzing the operating parameters and even predictive maintenance. Finally, you are able to respond quicker to problems and faults, use active monitoring, reduce your processing costs and lots more.
Turbine blasting machines
Compressed air blasting machines
Wet blasting machines
Plastic deflashing machines
What are the key points about shot blasting?
A look at frequently asked questions.
What is shot blasting?
Shot blasting is an essential technology for surface treatment or surface finishing. As such it offers numerous methods for the mechanical refinement of surfaces. There are dry shot blasting processes as well as wet systems, utilizing a mix of blast media and water or pure water. Dry shot blasting is generally used for surface texturing, deburring, striping of paint and other coatings, de-rusting, de-sanding, descaling and, last but not least, shot peening. Wet blasting is by and large a particularly gentle surface finishing process. Typical applications are the gentle surface cleaning of delicate components, light edge radiusing of, for example, tools and the creation of decorative surface finishes. In shot blasting processes the abrasive is thrown at the work piece surface with speeds of up to 170 m/s. The kinetic energy required for accelerating the blast media in dry blast systems is generated by blast turbines (blast wheels) and compressed air, whereas in wet blast systems high-pressure pumps are utilized. The blast results generally depend on the machine type, the process parameters and, above all, on the type and size of blast media used for specific shot blasting operations.
What shot blasting systems are available?
- In the turbine shot blasting technology the high rotational speed of the so-called blast wheels, also known as turbines, is used for accelerating and throwing the abrasive onto the work piece surface. The most common applications for turbine blast machines are de-rusting, deburring, descaling, de-sanding and surface texturing (making a surface rougher).
- Compressed air blasting is ideal for targeted blasting of relatively small surface areas. It also allows the use of particularly abrasive mineral blast media. Compressed air blasting is also the preferred technology for shot peening.
- In wet blasting systems a mix of blast media and water (a so-called âslurryâ) is accelerated by a high-pressure pump. In high pressure water jet blasting a water jet is generated with a pressure of up to 4.000 bar (58.000 psi). Wet and high-pressure water jet blasting are frequently employed in the aerospace industry.
- âShot peeningâ, a special shot blasting method, is primarily utilized in the automobile and aerospace industry for components exposed to dynamic operating loads. âHammeringâ the work pieces with blast media generates a residual compressive stress in the top surface layers. This increases their resistance against bending and tensile stress and significantly extends their service life.
- Plastic deflashing, another special shot blasting method, is used for de-flashing and deburring of plastic components like duroplastic and some thermoplastic materials. Generally, plastic de-flashing systems demand considerably less energy, and they utilize specialized, rather soft blast media.
What are the most common blast media types
![Blast media types for shot blasting systems]( "Blast media types for shot blasting systems")
![Metallic media made from iron and steel for shot blasting machines]( "Metallic media made from iron and steel")
![Stainless steel blast media for shot blasting systems]( "Stainless steel blast media")
![Mineral â non-ferrous blast media for shot blasting machines]( "Mineral â non-ferrous blast media")
![Natural mineral blast media for shot blasting machines]( "Natural mineral blast media")
Selection of the most suitable blast media for a given shot blast operation is one of the most important decisions in the process development. The users can choose from a broad range of blast media, some of which can fulfill the same shot blasting tasks. Important selection criteria are the desired blast results, the expected wear rate of the equipment and the cost efficiency of the blast media.
The currently used blast media can be classified as metallic, natural or synthetic mineral materials, natural or synthetic organic materials as well as liquid and gaseous media.
The most common media at a glance:
Metallic media made from iron and steel:
- Steel shot (round), steel grit and chilled iron grit are ideal for aggressive surface cleaning, de-rusting, de-scaling, de-sanding, deburring, surface texturing, creating a mat finish and shot peening (only spherical media). They can be used in turbine blast machines as well as in compressed air suction (injection) or pressure blast systems.
- Cut wire blast media in different shapes (cylindrical, rounded edges, nearly round or completely round) are used for general cleaning, de-rusting, de-scaling, de-sanding, deburring/slight edge radiusing and, frequently, shot peening. Cut wire media are suitable for turbine as well as compressed air suction (injection) and pressure blast systems.
Stainless steel blast media:
- Cast stainless steel shot (perfectly or partially round) and grit are suitable for surface cleaning, de-scaling, de-sanding, deburring/slight edge radiusing, surface texturing, creating a mat finish and shot peening (only spherical media). They can be used in turbine as well as compressed air suction (injection) and pressure blast systems.
- Cut wire stainless steel media (cylindrical, rounded edges, nearly round or completely round) are used for de-scaling and, frequently, shot peening. They can be used in turbine as well as compressed air suction (injection) and pressure blast systems.
Mineral â non-ferrous blast media:
- Brass swarf, small brass pellets, brass cut wire, aluminum granules, aluminum cut wire, zinc granules and zinc cut wire are used for surface cleaning and deburring. They can be used in turbine as well as compressed air suction (injection) and pressure blast systems.
Natural mineral blast media:
- Garnet, soda, potassium sulfate and quartz sand are suitable for paint stripping, de-scaling, de-rusting. surface cleaning, creating a mat finish and deburring. They can be used in compressed air suction (injection) and pressure blast machines as well as in wet and high-pressure water jet blast systems. However, in case of quartz sand this is only partially true: In many countries, also in Germany, the blasting with quartz sand is prohibited, because it represents a serious health hazard in the form of silicosis lung disease.
The most common shot blast machines
Which shot blast machine is most suitable for treating certain work pieces must be determined individually for every application. But the shot blast system as such is only one factor of many. The user must also decide between processing of complete batches of small to very small, mass-produced parts or single piece processing. Typical batch systems are tumble belt machines and multi-tumblers. Spinner hanger blast machines can be used for single piece as well as batch processing of somewhat larger work pieces. 90 out of 100 blast machines leaving our factories are custom engineered to precisely meet the customer requirements. Most common are roller conveyor and wire mesh belt shot blast machines, which can be used for a wide variety of shot blast applications.
Rösler sells mostly wheel, respectively, turbine blast machines. Whenever large surface areas must be treated, they represent the most cost-efficient solution. Moreover, with turbine blast machines the capital expenditures and operating costs in relation to the achievable throughput are relatively small.
You want only the best for your surface?
We will gladly help you!
