If you manage a bulk material handling operation, you know the enemy. It’s not just the mountain of aggregate or the surge of coal; it’s the 2% to 5% of material that clings to the belt after the primary discharge. This “carryback” is the silent profit killer. It leads to belt misalignment, accelerated roller wear, and hours of manual clean-up. Worse, it creates a hazardous work environment.
Enter the OLD CRAFTSMAN Vacuum Brazed Carbide Conveyor Belt Scraper. While the name evokes old-school reliability, the technology inside is cutting edge, specifically designed to tackle one job: reducing carryback to virtually zero.
The Problem with Standard Scrapers
Most standard scrapers use polyurethane or standard tungsten carbide tips. Polyurethane wears down quickly against sharp rocks. Standard carbide, while hard, often creates a “polishing” effect where fines pack under the blade, lifting it off the belt surface. The result? Streaks of carryback left behind.
The OLD CRAFTSMAN Difference: Vacuum Brazing
The secret sauce is in the “Vacuum Brazed” process. Instead of simply gluing or clamping carbide bits to a steel back, OLD CRAFTSMAN uses a vacuum furnace to chemically bond the carbide to the blade. This eliminates porosity and oxidation. Why does this matter for your belt?
- Aggressive, Continuous Contact: Vacuum brazing allows for a sharper, more exposed carbide grit structure. It acts like a high-speed file rather than a flat blade. It digs into the sticky material film and lifts it off mechanically, rather than just trying to push it.
- Superior Wear Life: Because the bond is molecular, there are no weak points. These blades last 3 to 5 times longer than conventional scrapers in abrasive applications like sand, cement, or potash.
How It Reduces Carryback
The physics are simple. Standard scrapers create a “smear” zone. The OLD CRAFTSMAN scraper creates a scraping plane. As the belt passes over the blade, the vacuum-brazed carbide particles penetrate the surface tension of the wet or sticky fines.
Because the blade clears the belt entirely on the first pass, you don’t get that thin, hardened layer of carryback that builds up on return rollers. When you eliminate that layer, you eliminate the need for belt cleaners, misters, and constant tension adjustments.
The Bottom Line for Your Plant
Switching to the OLD CRAFTSMAN system isn’t just a maintenance upgrade; it’s a financial one.
- Less Spillage: Cleaner housekeeping means fewer man-hours with a shovel.
- Less Belt Damage: Carryback trapped under idlers tears belts. This scraper prevents that.
- Lower Maintenance: Set the tension and walk away. The vacuum brazed surface is self-sharpening to a degree, maintaining efficiency over thousands of hours.
Final Verdict
If your current belt scraper is leaving a trail of fines back to the tail pulley, you are paying for it in labor and downtime. The OLD CRAFTSMAN Vacuum Brazed Carbide Conveyor Belt Scraper offers a durable, high-performance solution for the harshest environments. Stop fighting carryback. Scrape it clean the first time, every time.
“Zhuzhou OC Precision Alloy Co., Ltd. could make tungsten carbide wear parts and make your equipment use life is tens of times longer than before! We specialize in providing customized carbide wear products solutions to meet the demanding requirements of industries such as aerospace, automotive, mining, and precision machining.”
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