What type of mechanical pipe cleaning unit has high carbon spring steel blades?

• A. Metal Scrappers
• B. Plastic Scrapers
• C. Rubber Tools
• D. Ceramic Blades

Answer: (A)

Metal scrapers rely on blades made of high carbon spring steel, which provides a sharp, durable edge combined with the resilience to flex and withstand impacts against rough pipe interiors. The high carbon content gives edge retention for cutting through hard mineral buildup, while spring steel allows the blade to return to shape instead of snapping under pressure. This makes metal scrapers the best choice for aggressive cleaning in mechanical pipe cleaning units. Plastic scrapers wouldn’t maintain a cutting edge, rubber tools aren’t cutting tools, and ceramic blades would be brittle and prone to chipping in these conditions.