330mmx25mm 1800 Grit Flexible Diamond Sanding Belt – Efficient Polishing & Grinding for Hard Materials

Overview: The 330mmx25mm 1800Grit Flexible Diamond Sanding Belt – Efficient Polishing & Grinding for Hard Materials is an ultra-fine precision pre-polishing flexible abrasive belt designed for 1-inch portable mini belt sanders, bench contour grinders, and lapidary shaping machinery. Uniformly electroplated with 1800-grit micro-diamond abrasive securely anchored to a flexible, resilient cloth backing, it delivers satin-smooth pre-polish surfaces, eliminates sub-micron grinding lines, and prepares broad 25mm contours and bevels for a flawless optical polish.

Key Features

• 1800 Grit Micro-Diamond Layer: Delivers superior pre-polish smoothness, eliminating micro-scratches on extremely hard workpieces.
• Wide 25mm Width & 330mm Belt Loop: Perfectly fits 330mm×25mm (13" × 1") mini belt grinders and contour finishing attachments.
• Flexible Tear-Resistant Cloth Backing: Conforms smoothly over contact wheels and platen beds without cracking or delaminating.
• Heavy-Duty Precision Splice: Bi-directional smooth joint ensures seamless tracking and minimal vibration at high operating speeds.

Applications

• Ultra-fine lapidary pre-polishing on gemstone cabochons, jade carving, and mineral specimens
• Precision glass edge smoothing, bevelling, and internal cutout finishing
• Fine micro-honing of tungsten carbide dies, ceramic guides, and hardened alloys
• Smooth surface preparation on technical ceramics, sapphire components, and quartz

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.