Comprag manufactures a wide variety of products ranging from Screw compressors, refrigerating and adsorption type dryers, compressed air line filters and separators, reservoirs for compressed air storage, moisture management equipment to Portable abrasive blasting equipment, manual blast cabinets, safety equipment for abrasive blasting, dust free blasting and blast media recovery equipment, portable moisture separation equipment and special components related to abrasive blasting.




Mobile blasting technology is the backbone of many industrial corrosion protection, remediation, and cleaning processes. It allows for the efficient treatment of surfaces directly on-site, independently of permanently installed facilities. At its core, it involves accelerating an abrasive medium onto a surface using compressed air to quickly and thoroughly remove rust, old coatings, contaminants, or mill scale. The versatility of this technique is immense: it ranges from the gentle cleaning of sensitive facades to the preparation of steel structures for highly durable new coatings. Modern equipment is characterized by its robustness, easy maneuverability, and precise metering of the abrasive medium. Furthermore, innovative technologies such as closed-loop systems or the addition of water (wet blasting) minimize dust generation and increase occupational safety. Specialized tasks, such as the restoration of historical buildings or achieving defined surface roughnesses for optimal adhesion, are barely conceivable without these flexible and powerful, portable systems. The selection of the correct abrasive medium is crucial in this process to achieve the best possible result for the respective material.



Screw compressors are the continuous runners behind a multitude of industrial applications that require consistently high volumes of compressed air. Their function is based on an innovative principle: two intermeshing, helical rotors (screws) rotate, thereby reducing the volume of the enclosed oil-air mixture and compressing it to the required operating pressure. This design offers crucial advantages over other compressor types, particularly quiet, pulsation-free operation and superior energy efficiency under continuous load. They are the preferred choice for processes that require a reliable and uninterrupted supply of compressed air, such as in production lines, CNC machines, food production, or indeed, blasting technology. Modern screw compressors integrate advanced technologies for variable speed drive (VSD), which optimally adapt energy consumption to the actual air demand. Furthermore, effective oil filtering and cooling systems ensure high air quality and a long service life for the unit. The specific task of this technology is the provision of a stable and clean medium, which is essential for the efficiency and product quality of all downstream pneumatic tools and processes.



In abrasive blasting, occupational safety is not just a regulation, but the absolute foundation for a responsible and effective operation. The media used for blasting and the resulting dusts require special protective measures to ensure the health of the operating personnel. The central component here is the professional blasting helmet, which primarily protects the respiratory system from dust and fine particles. The certified blasting helmets according to EN14594:2018 4B are equipped with a fresh air supply that provides the user with clean, filtered air. Furthermore, robust blasting suits and blasting gloves are part of the essential equipment. This blasting protective clothing safeguards against the rebound of the abrasive medium, which impacts the surface at high velocity. The underlying technology ensures that the hazards of blasting technology - such as silicosis from quartz dust or eye injuries - are completely minimized. The investment in high-quality blasting safety equipment allows specialist personnel to fully concentrate on the precision of their work without having to take health risks.



Compressed air may appear clean at first glance, but it always contains water vapor, which turns into condensate within the system and can cause massive damage. This is where specialized compressed air dryers come into play: They are essential to prevent corrosion in pipelines and machinery and to secure the quality of the end products. The two main technologies here are the refrigeration dryer and the adsorption dryer. Refrigeration dryers efficiently cool the compressed air, causing the majority of the water vapor to condense and be separated - ideal for applications requiring a dew point of up to +3°C. Adsorption dryers, on the other hand, use absorption agents that bind moisture, thereby achieving extremely low dew points of up to -40°C. This particularly dry air is mandatory for highly sensitive processes, such as in medical technology, the pharmaceutical industry, or during outdoor blasting processes in the cold season. The selection of the correct drying technology thus ensures that the compressed air can optimally fulfill its function as a clean, reliable, and material-preserving medium.



While mobile blasting equipment offers flexibility, blasting cabinets are the optimal solution for the controlled and environmentally friendly treatment of small to medium-sized workpieces. A blasting cabinet provides a closed space in which the entire blasting process - from cleaning to surface finishing - takes place safely and dust-free. The underlying principle is similar to mobile blasting, but with the decisive advantage of a closed-loop system. This system collects the used abrasive medium and the debris, cleans the abrasive medium using special separators, and feeds it back into the process. This technology significantly reduces the consumption of abrasive media, making the process particularly economical and sustainable. Through various injector or pressure blasting systems, specific surface requirements can be met within the cabinet, whether it is deburring, glass matting, or shot peening to increase material fatigue strength. Blasting cabinets are thus indispensable for workshops that must guarantee high process accuracy, occupational safety, and compliance with strict environmental regulations.



A compressor system is only as reliable and efficient as its individual components. Behind the main machine lies a network of essential components that ensure the performance and longevity of the entire compressed air system. These key components include, among others, advanced filters that remove contaminants and oil particles from the air, as well as condensate drains that reliably discharge the condensate water generated during the process. However, the core elements for maintaining compressor performance are high-quality spare and wear parts, such as oils, air filters, and oil-air separators. The use of original components or parts of equivalent quality is not just a matter of warranty but is directly linked to energy efficiency. A clogged filter or an inefficient separator forces the compressor to work harder and consume more energy. The specific task of these components is to maximize operational reliability, minimize downtime, and guarantee optimal efficiency over the entire lifespan of the system.