Frequently asked questions

It’s not always a matter of part quality. It’s often the result of improper turbine angle adjustment, poor separation, or overused abrasive. No one teaches operators how to monitor wear before it’s too late.

Sometimes it’s 10%, sometimes… 100%. But it’s not just about the price per ton. Other factors that matter include service life, dust load, impact on turbines, and cleaning efficiency. We always look at the TCO – total cost of ownership.

Because visual quality isn’t everything. If the separator lets dust through and the filter can’t keep up, the details will have micro-contamination that’s invisible but affects the adhesion of paint or zinc.

Because the amount of shot in circulation, the throw angles, the quality of separation, and the turbine load all change. It’s not magic. These are measurable variables that no one can control—but they should.

Not by the quantity in the tank. By ammeters, by the quality of the parts, by sieve analysis. A mature process is one that can measure abrasive quality—before problems arise.

No. This is a sign that something isn’t working: too much dust, a leaky chamber, the wrong abrasive, or a malfunctioning separator. Filters are an indicator of the health of the entire system.

It’s possible, but you have to know what you’re doing. In poor conditions, the mixture is chaos: one fraction gets used up, another clogs the circuit. Mixing is an art – and a mathematics.

Not every abrasive is suitable. Too aggressive and it will damage the zinc layer. Too soft and it won’t clean. It’s worth testing samples here. There’s no silver bullet.

Because it wasn’t degreased, because it had micro-dust, because it was too smooth. Shot blasting isn’t just about cleaning—it’s about preparing for the coating. Every mistake equals the cost of a claim.

It does. The machine is just a medium. The abrasive either does the job—or it doesn’t. Bad abrasive means: poor quality, more dust, more machine wear, more complaints. Simple.

Shot is a work tool—it wears out just like drills or milling cutters. One of our clients aptly compared it to drills: If you’re involved in industrial surface treatment, you need a material that’s durable, precise, and repeatable. If your shot blaster operates a few hours a week, standard shot will suffice—it will do the job without affecting production results. However, if your equipment operates continuously, across multiple shifts, choose professional shot with high production repeatability. Only such a material will ensure a stable process, uniform cleaning, and reduced wear on consumables.

If your process operates in a single, double, or triple shift, you need to ensure continuity. A lack of shot in stock can bring the entire production line to a halt. Check with your supplier how often they produce and deliver shot, and where their warehouse is located—this is crucial information when you need a quick delivery after an unplanned stock run. It’s worth considering creating a safety stock to protect production against downtime. Remember: the role of a reliable shot supplier is not only to provide material but also to support the continuity of your process—so that you never run out of a key tool in your shot blasting facility.

If most of your production goes through the shot blasting process, abrasive quality certificates are crucial. They not only determine the repeatability of treatment results but also the ability to certify finished products and provide warranties. Before purchasing shot blasting media, ask the supplier if they can provide manufacturer certificates—with the actual manufacturer’s details, not just the distributor’s logo. This is especially important in industries subject to external audits. It’s also a good idea to obtain information on: – shot life and hardness (for new grain and operational mix), – abrasive wear intensity, – edge characteristics of broken shot blasting media, – salt content if you monitor surface saltiness after shot blasting. A reliable supplier also provides sieve analyses, which allow you to monitor the consistency of your deliveries and maintain the stability of your surface treatment process.

In most companies, 70–100% of production goes through the shot blasting process, so choosing the right abrasive and shot blasting equipment supplier is crucial. A professional supplier goes beyond product sales—they provide comprehensive process support, including: – measurement and analysis of operating parameters, – regular process inspections and optimization, – recommendations for improvements to improve shot blasting efficiency and durability, – and, if necessary, theoretical and practical training for operators and new team members. This approach ensures that your shot blasting process remains stable, repeatable, and cost-effective—regardless of changes in team composition or production intensity.

Yes, a reliable supplier should allow you to test the abrasive or shot blaster before purchasing. This is especially important when switching materials or investing for the first time. Testing can be conducted in the supplier’s laboratory or at a reference customer’s facility, under conditions similar to your process. This allows you to select the best-suited shot blasting technology—one that will ensure optimal efficiency, shot durability, and surface quality—before making a purchase decision.

For truly demanding processes, it’s worth preparing a TCO (Total Cost of Ownership)—a breakdown of all the total costs of the shot blasting process. Ask your shot blasting supplier to help you calculate the actual process costs, not just the material price. Shot blasting is a complex production step that encompasses several cost items—from energy consumption and consumables to operating time and equipment maintenance. Focusing solely on the purchase price of the abrasive can lead to erroneous conclusions. It’s worth remembering that the cost of the abrasive itself only accounts for 10-15% of the total process cost, with the remainder dependent on its quality, efficiency, and suitability for the specific application.

Absolutely. Poorly selected technology can lead to serious quality issues and production losses. A case in point is a company that purchased a new shot blasting machine. The purchase process allowed for a thorough needs analysis, but after implementation, it turned out that some of the parts were deforming—sheet metal and angle irons were bending after shot blasting. The main body of the parts remained intact, but the welded elements couldn’t withstand the intensity of the treatment. The cause was excessively coarse shot (approx. 1.0 mm), selected without prior testing. Worse still, the machine tests were conducted on a different machine and with a different type of abrasive, and the shot blasting machine itself lacked turbine speed control. After analyzing the process, a special shot mix was selected that did not damage the parts and ensured the proper surface profile for powder coating. This case demonstrates that the choice of shot blasting technology directly impacts the quality of the parts and the efficiency of the entire process.

Yes, the type of shot blasting used is crucial to the final result—especially when preparing surfaces for painting. For example, a company using a rotary shot blaster reported a problem after painting details: peaks and roughness appeared on the surface, and unevenness and insufficient paint could be felt upon touch. After a joint analysis with the painter and tests, we confirmed that the paint was applied correctly—the culprit was the shot blasting material. The client had used a crushed shot blasting material, recommended by phone, which created an excessively sharp surface profile. The result? Increased paint consumption, higher painting costs, and accelerated wear of consumables. The problem was solved by using ball-shaped shot blasting with a high durability and hardness (approx. 500 HV), which smoothed the surface profile and stabilized the entire process. This case demonstrates that selecting the right shot directly impacts the quality of the paint finish and the costs of the entire process.

An example is a company that previously used silica sand and was later persuaded to use electrocorundum (EB). The material itself is excellent—it provides very aggressive cleaning and high surface quality—but its use in the case of black steel proved economically unjustified. The abrasive costs were prohibitive compared to metallic alternatives, and the machining result didn’t require such a hard material. After analyzing the process, sharp-edged broken shot was introduced, reducing processing time by as much as 70%. Next, a rotary shot blaster with a moving turbine block and ball-shaped shot were implemented, ensuring even greater efficiency and repeatability. This example demonstrates that even the best abrasive can be ineffective if it’s poorly matched to the material type and process objective.