3M Silver Depressed Center Grinding Wheel
The 3M Silver Depressed Center Grinding Wheel (Type 27) is a heavy‑duty abrasive wheel built for aggressive grinding tasks such as beveling, weld removal and edge work on carbon steel, stainless steel and other alloys.
Key Features
- Precision‑Shaped ceramic abrasive for long life and fast cut rates
- Self‑fracturing mineral provides consistent performance in robotic and pressure‑assisted applications
- Available in multiple diameters and center‑hole sizes for versatile tooling
- Resin bond for reliable wheel integrity at high speeds
Specifications
- Overall Diameter: 4 – 9 in (101.6 – 228.6 mm)
- Thickness: 0.25 in (6.35 mm)
- Center Hole Diameter: 0.375 in, 0.625 in, 0.875 in (9.525 mm, 15.875 mm, 22.225 mm)
- Grit: 36+
- Abrasive Material: Precision‑Shaped Ceramic
- Bond Type: Resin
- Wheel Type: T27
- Maximum Speed: up to 15,300 rpm (varies by size)
Applications
- Heavy grinding and stock removal
- Weld grinding and removal
- Beveling and edge chamfering
- Descaling and flash removal on flame‑cut parts
- Robotic weld‑grinding operations
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Specifications
| Grit | 36+ |
| Max Rpm | 6650 rpm, 8500 rpm, 10200 rpm, 12250 rpm, 13300 rpm, 15300 rpm |
| Bond Type | Resin |
| Wheel Type | T27 |
| Abrasive Material | Precision Shaped Ceramic |
| Center Hole Thread Size | 5/8"-11 |
| Overall Diameter Metric | 101.6 mm, 114.3 mm, 127 mm, 152.4 mm, 177.8 mm, 228.6 mm |
| Overall Thickness Metric | 6.35 mm |
| Overall Diameter Imperial | 4 in, 4.5 in, 5 in, 6 in, 7 in, 9 in |
| Overall Thickness Imperial | 0.25 in |
| Center Hole Diameter Metric | 9.525 mm, 15.875 mm, 22.225 mm |
| Center Hole Diameter Imperial | 0.375 in, 0.625 in, 0.875 in |
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