This exceptionally durable and thick-walled hose is engineered for the demanding suction and transport of abrasive bulk materials, granulates, roofing gravel, industrial cleaning residues, sandblasting abrasives, and for use in silos or bulk material tankers. Manufactured in compliance with DIN 26057 Type 4 (SMARTFLEX® 2.0), it combines antistatic and flame-retardant properties to ensure maximum workplace safety, even in environments with explosion hazards, when properly grounded. Its dense steel wire spiral reinforcement guarantees outstanding resistance to vacuum, while the smooth inner surface supports optimal flow and minimizes material buildup. Despite its robust construction, the hose remains elastic even at low temperatures, offering reliable performance from -40°C to +100°C, withstanding peaks up to +125°C. The transparent polyester-polyurethane material provides excellent abrasion resistance, as well as resistance to oils, gasoline, microbes, and hydrolysis, ensuring long-lasting durability. Free from halogens and plasticizers, it is a safe and environmentally conscious choice. Available in wall thicknesses of 2.0 mm (SMARTFLEX® 2.0) and 2.5 mm (SMARTFLEX® 2.5), with other diameters available on request, this hose is the perfect solution for industries requiring strength, safety, and efficiency in the handling of abrasive and demanding media.