330mmx25mm 240 Grit Flexible Diamond Sanding Belt – Efficient Polishing & Grinding for Hard Materials

Overview: The 330mmx25mm 240Grit Flexible Diamond Sanding Belt – Efficient Polishing & Grinding for Hard Materials is a high-precision flexible diamond abrasive belt designed for 1-inch portable belt sanders, mini bench grinders, and contour finishing tools. Electroplated with uniform 240-grit diamond particles securely bonded to a high-strength flexible cloth backing, it delivers smooth pre-polishing, edge refinement, and clean scratch elimination across a wide 25mm surface area on hard, brittle materials.

Key Features

• 240 Grit Fine Diamond Abrasive: Rapidly removes coarse grinding lines and prepares surfaces for fine pre-polishing stages.
• Wide 25mm Profile & 330mm Belt Loop: Perfectly fits standard 330mm×25mm (13" × 1") detail belt machines and file grinder arms.
• Flexible Tear-Resistant Cloth Backing: Conforms smoothly to contoured shapes and runs evenly over flat platen platters.
• Heavy-Duty Precision Splice: Bi-directional smooth joint ensures continuous tracking stability and minimal vibration at high operating speeds.

Applications

• Lapidary cabochon smoothing, gemstone contour refinement, and mineral specimen prep
• Glass edge pre-polishing, arrissing, and delicate bevelling
• Deburring and smoothing carbide dies, hardened tool alloys, and thermal barrier coatings
• Surface blending on technical ceramics, porcelain tiles, and engineered composites

Operating Guidelines

• Coolant: Wet operation with continuous water mist or lubricant is strongly recommended to prolong belt life and minimize grinding dust.
• Tracking: Adjust belt tension properly to prevent slipping on contact wheels.
• Recommended Speed: 3,000 to 5,500 SFPM for high cutting rates and smooth surface finishes.