Written by Rosler CEO Bernhard Kerschbaum, this article was originally published in The Fabricator.
Modern metal fabrication operations aren’t like the fab shops of old. Many are clean, well lit, with employees working in fresh, filtered air. Yes, some operations in fabrication are, well, just plain dirty—and manual blasting is a prime example. The work isn’t pleasant, requires protective gear, and if the booths aren’t maintained or set up properly, they can constrain workflow in a serious way.
Options in blasting automation abound, but before diving into all that technological wizardry, try laying some groundwork by answering a fundamental question: What must the blasting operation accomplish?
Shot Blasting Versus Shot Peening
Shot blasting (or just “blasting” if using a different media other than shot) prepares a metal surface while shot peening aims to change the metal’s properties (see Figure 1). Certain aerospace applications require precise levels of stress relief (or other changes to material properties), and they use specialized shot-peening technologies to achieve it. Precision shot peening of landing gears is a prime example, with the process optimizing surface stresses, eliminating microcracks and the stress risers around them.
Most metal fabricators employ blast cleaning for the vast majority of their applications, cleaning and preparing a metal surface for the next manufacturing step, usually painting. If a beam or plate isn’t blasted correctly, paint won’t adhere properly. However, some fabrication operations do employ a kind of peening—not as precise as high-end peening applications, but it’s peening nonetheless, with the media impacting the surface and causing compressive stresses that aim to change the material’s properties.
Continue reading A Holistic Look at Automated Blasting in the Modern Metal Fabrication Shop →
As a supplier of mass finishing and shot blasting equipment as well as consumables and service, Rosler understands the need for multi-faceted operations and the corresponding flexibility, cost-effectiveness, and innovation required to be successful.
B+S Metallbearbeitung GmbH (B+S), a job shop based in Southern Germany, also provides various surface finishing services. Its multi-faceted mass finishing operations include deburring and polishing as well as shot blasting, part cleaning, and packaging.
B+S handles a broad range of work pieces with different shapes, made of different materials, requiring different finishes, and coming from all kinds of industries. To create a streamlined and one-stop supplier, B+S chose to work with Rosler for its surface finishing equipment and consumables.
Continue reading Single-Source Supplier Helps Job Shop Operation Expand into New Markets →
Shot blasting is a specialized surface finishing process where small metal (or mineral) pellets, called blast media, are thrown onto the surface of a work piece at incredibly high speeds. With rates of speed ranging from 200-800 feet per second, the impact on the work pieces from this process is what produces the desired surface finishing effect.
Shot blasting can help achieve surface cleaning, surface preparation, descaling, deburring, deflashing, and shot peening.
The process components of a shot blasting system include a shot blast machine, raw and finished work pieces, blast media, dust, and other byproducts. Rosler has more than 80 years of experience in developing comprehensive shot blasting systems.
The two most common types of shot blast machines are turbine blasting and air blasting.
Continue reading Shot Blasting 101 →
For nearly a decade, Sales Representative and Interim Product Manager of Turbine Blast Equipment Zack Murray has been one of Rosler’s top shot blasting experts.
Working with customers and our global Customer Experience Centers, he helps develop and test surface finishing machines and media in addition to dialing in specific process parameters.
At times, adhering to the Rosler motto and guiding principle of “finding a better way…” can be difficult and complicated. Luckily, Murray and the entire Rosler team are committed to delivering world-class surface finishing equipment, consumables, and service in a variety of industries.
In this post, Murray shares the most challenging issue he has tackled at Rosler and how the team developed a solution.
Continue reading Testing & Expertise Overcome Shot Blasting Challenges →
As an expert in the shot blasting industry, Rosler knows about blade technology. All shot blasting machines require blades to propel media towards workpieces. While both straight and curved blades are used, each type offers advantages and disadvantages.
What are the Differences?
Straight blades are, as the name suggests, blades that do not have curvature when viewed from the side and do not possess tangential curvature with respect to the turbine. Curved blades are blades that have some degree of curvature when viewed from the side.
As the newer design, curved blades are generally better than straight blades, but they also have some drawbacks related to longevity, maintenance, and cost of ownership.
Continue reading Blade Technology: Straight vs. Curved Blades Explained →
For over 30 years, Berker GmbH & Co KG (Berker) has trusted Rosler shot blasting equipment in its manufacturing processes.
A member of the Hager Group since 2010, Berker is one of the leading manufacturers of high-end electrical components, from timeless classical switches to intelligent electrical systems for buildings. The company also supplies switches for electrical appliances and automobiles.
Berker primarily uses continuous feed systems such as loop and flat belt machines to deflash plastic components including switching elements, electrical outlet covers, frames, and more.
Increased production volume at its Wenden-Ottfingen manufacturing location led Berker to decide to invest in an additional shot blast machine in 2018. The new investment was intended to replace an existing continuous feed loop belt system with the latest deflashing technology.
Its specifications called for increased capacity and high equipment availability.
Continue reading New Deflashing Equipment Assists 30-year Customer Increase Production →
Replacing a shot blasting machine for a long-time customer requires finding a better way to deliver efficient finishing in a faster, smaller, and more maintenance-friendly way. That’s exactly what Rosler delivered when Linde Material Handling (Linde) returned to us for a shot blasting upgrade.
Linde is a supplier of forklift trucks and warehouse equipment and also provides technical intralogistics solutions and services. With a sales and service network spanning more than 100 countries, the company has a global footprint.
For this particular partnership, Linde’s foundry in Weilbach, Germany, challenged Rosler to supply a new shot blasting system capable of finishing and maneuvering the counterweights it manufactures for forklifts. Our solution was a sturdy foundry version of a continuous hanger shot blast machine known as the RHBD 22/27-F.
Linde continuously strives to improve its manufacturing operations. As such, the new machines had to accomplish several goals, including faster processing, more flexible material flow, optimized utilization of available space, improved access to all critical maintenance areas, and increased overall efficiency.
Continue reading Foundry-Specific Shot Blasting Achieves Increased Efficiency →
Knaus Tabbert AG is a leading manufacturer of recreational vehicles. The company’s innovative designs and powerful drive systems for motor homes, caravans, and panel trucks allow for safe, comfortable, and sustainable travel.
At its German headquarters in Jandelsbrunn, Bavaria, Knaus Tabbert utilizes its comprehensive experience and know-how to continuously improve the materials and designs of its vehicles as well as new manufacturing technologies such as additive manufacturing.
Seeking faster and less expensive post processing for its 3D printed prototypes, Knaus Tabbert turned to AM Solutions, a brand of The Rosler Group, to find a better way.
From prototyping to production, Knaus Tabbert needed de-powdering and cleaning operations for additively manufactured work pieces.
“On the one hand, we are using 3D printing technology for creating prototypes. On the other hand, we are also utilizing additive manufacturing for producing standard components in volume such as the bracket for an alarm system or the hinge mechanism for the swing-out shower stall,” said Mario Meszaros, Knaus Tabbert Development Engineer.
Continue reading AM Solutions Delivers Post-Processing Solutions for Prototypes & Parts →
During more than 80 years in business, the Rosler team has gained extensive experience in shot blasting and mass finishing for a variety of industries.
In addition to the machinery and consumables we provide, our Customer Experience Centers enable us to demonstrate Rosler’s expertise by processing your samples with settings and requirements tailored to your needs.
Sending your work pieces to one of our 11 test centers around the world is an important step in achieving the perfect surface finishing process.
Learn what to expect from Rosler’s Customer Experience Centers and get the most out of your partnership with Rosler from Sales Representative and Interim Product Manager of Turbine Blast Equipment Zack Murray and Mass Finishing Product Manager Michael Salyers.
What to Expect as a Customer
To achieve optimal processing results, we carry out sample processing step-by-step.
With an emphasis on finding a better way, our process includes:
Continue reading Customer Experience Centers Offer Free Surface Finishing Insight & Solutions →
Blast cleaning is uniquely capable and efficient at delivering the pre-coating surface preparation required for components that must be able to withstand severe ambient conditions including heavy equipment for construction and mining, agricultural machinery, transportation and material handling equipment, and railway equipment and rolling stock.
When Dutch equipment manufacturer Delwi Groenink sought a better solution for prepping its various steel weldments for painting, the company enlarged its manufacturing depth with a new continuous hanger shot blast machine from Rosler.
Based in Enschede, Netherlands, the company designs and produces numerous products including placement systems for container pads. Its customers largely work within the material handling, offshore, and transportation sectors.
Continue reading Dutch Equipment Manufacturer Increases Flexibility with Automatic Shot Blasting →