Ceramic Alumina Flap Disc
1. Excellent grinding efficiency and metal removal rate Ceramic alumina has very high hardness (Mohs ≥9), generating high local pressure to cut readily into metal surfaces. Its metal removal rate can reach ≥90 mm³/min. 2. Continuous sharpness through self-sharpening Ceramic alumi...
Read the full description- Type
- Type 27 / Type 29
- Material
- Ceramic alumina
- Grit size
- 36#, 40#, 60#, 80#, 120#
- Base material
- Fiberglass-reinforced backing plate
Bodan supplies this item to specification. Share the material, machine and required finish and we will confirm the grade, dimensions and packing for your order.
Advantages
Key features
-
Excellent grinding efficiency and metal removal rate
Ceramic alumina has very high hardness (Mohs ≥9), generating high local pressure to cut readily into metal surfaces. Its metal removal rate can reach ≥90 mm³/min.
-
Continuous sharpness through self-sharpening
Ceramic alumina's key advantage is that dulled grains develop microcracks and expose fresh cutting edges. This can extend effective use of a single flap disc to more than 30 minutes, substantially reducing replacement frequency.
-
Excellent heat dissipation helps prevent workpiece burning
A special abrasive coating and the ventilated flap structure lower grinding-zone temperatures at high speed, helping prevent overheating, discoloration and burns. This is particularly useful for heat-sensitive stainless steel and aluminum alloys.
-
Long service life and lower overall cost
Ceramic alumina flap discs outperform zirconia alumina discs in surface finish, service life and overall cost. High-density ceramic flap discs can last 2-3 times as long as conventional ceramic discs and 10 times as long as alumina discs.
-
High safety
High-strength fiberglass backing plates provide a sufficient safety margin for rotational speed, meeting European, North American and other international safety standards and helping prevent flap ejection at high speed.
Technical data
Specifications
- Type
- Type 27 / Type 29
- Material
- Ceramic alumina
- Grit size
- 36#, 40#, 60#, 80#, 120#
- Base material
- Fiberglass-reinforced backing plate
- Inner diameter — Metric
- 16-22 mm
- Inner diameter — Imperial
- 5/7 in, 7/8 in
- Outer diameter — Metric
- 100 -180 mm
- Outer diameter — Imperial
- 4 in, 7 in
- Specifications — Imperial
- 4 x 5/8 in, 4.5 x 7/8 in, 5 x 7/8 in, 6 x 7/8 in, 7 x 7/8 in
- Max linear speed
- 80 m/s
- Specifications — Metric
- 100 x 16 mm, 115 x 22 mm, 125 x 22 mm, 150 x 22 mm, 180 x 22 mm
- Rotational speed
- 100 mm (4″)：15,200 RPM; 115 mm：13,300 RPM; 125 mm：12,200 RPM; 180 mm (7″)：8,600 RPM
Product details
About this product
Product Overview
Ceramic alumina flap discs are professional coated abrasives for demanding industrial grinding. Their ceramic alumina abrasive is produced through a specialized process and offers distinctive self-sharpening properties.
As grains dull during grinding, controlled microfracture exposes fresh cutting edges and maintains cutting efficiency. This gives ceramic alumina flap discs much higher grinding efficiency and longer life than conventional abrasives on difficult materials such as stainless and high-alloy steels.
Diameters range from 100 mm (4″) to 180 mm (7″), fitting common angle grinders.
Product Parameters
| Specifications | Details |
|---|---|
| Product name | Ceramic Alumina Flap Disc |
| Abrasive material | Ceramic alumina |
| Backing material | Fiberglass-reinforced backing plate |
| Outside diameter range | 100 -180mm(4″-7” |
| Bore diameter | 16-22mm (5/7”-7/8”) |
| Grit range | 36# 40# 60# 80# 120# |
| Product type | Type 27 / Type 29 |
| Maximum rotational speed | 100mm (4″)：15,200 RPM; 115mm：13,300 RPM; 125mm：12,200 RPM; 180mm (7″)：8,600 RPM |
| Maximum peripheral speed | 80m/s |
Core Performance Advantages
1. Excellent grinding efficiency and metal removal rate
Ceramic alumina has very high hardness (Mohs ≥9), generating high local pressure to cut readily into metal surfaces. Its metal removal rate can reach ≥90 mm³/min.
2. Continuous sharpness through self-sharpening
Ceramic alumina's key advantage is that dulled grains develop microcracks and expose fresh cutting edges. This can extend effective use of a single flap disc to more than 30 minutes, substantially reducing replacement frequency.
3. Excellent heat dissipation helps prevent workpiece burning
A special abrasive coating and the ventilated flap structure lower grinding-zone temperatures at high speed, helping prevent overheating, discoloration and burns. This is particularly useful for heat-sensitive stainless steel and aluminum alloys.
4. Long service life and lower overall cost
Ceramic alumina flap discs outperform zirconia alumina discs in surface finish, service life and overall cost. High-density ceramic flap discs can last 2-3 times as long as conventional ceramic discs and 10 times as long as alumina discs.
5. High safety
High-strength fiberglass backing plates provide a sufficient safety margin for rotational speed, meeting European, North American and other international safety standards and helping prevent flap ejection at high speed.
Typical Applications
Application areas and specific uses
Stainless steel: weld grinding, surface finishing and weld-bead cleaning with reduced heat discoloration
Metalworking: weld grinding, slag removal and deburring of carbon steel, high-alloy steel, chromium and its alloys, cast iron, nickel steel and high-speed tool steel
Shipbuilding: grinding hull steelwork and finishing welds
Automotive manufacturing: sheet-metal grinding, surface preparation and weld-spot cleaning
General maintenance: removing scale, rust and old coatings
Applicable Materials
Stainless steel (particularly suitable)
Carbon steel and high-alloy steel
Chromium and chromium alloys
Cast iron
Non-ferrous metals such as copper and nickel alloys
Aluminum
Selection Guide
Check that the outside diameter (100-180 mm) and bore (16 or 22.23 mm) match the angle grinder.
Choose grit size for the application:
Coarse grinding (40#-60#): heavy stock removal, initial weld grinding and rapid cutting
Intermediate grinding (80#): general grinding and surface finishing
Fine grinding (120# and finer): fine polishing and surface finishing
Choose the disc type:
T27 (flat): suitable for flat-surface grinding
T29 (conical): suitable for welds, edges, bevels and contoured surfaces, with an effective cutting angle
Choose the backing: high-strength fiberglass plates suit heavy-duty work; economical plastic plates suit light to medium grinding.
Product Specifications
| Item No. | Specification / Metric (mm) | Specification / Imperial (in) | Grit size | Packaging (pieces per carton) | Safe rotational speed |
|---|---|---|---|---|---|
| CE10016 | 100x16 | 4”x5/8” | 36#-120# | 300 | 15200rpm 80m/s |
| CE11522 | 115x22 | 4.5”x7/8” | 36#-120# | 200 | 13300rpm 80m/s |
| CE12522 | 125x22 | 5”x7/8” | 36#-120# | 200 | 12200rpm 80m/s |
| CE15022 | 150x22 | 6”x7/8” | 36#-120# | 100 | 10200rpm 80m/s |
| CE18022 | 180x22 | 7”x7/8” | 36#-120# | 80 | 8600rpm 80m/s |
Safe Use Instructions
Ensure the product's maximum rated speed is at least equal to the angle grinder speed and mount it correctly.
Wear personal protective equipment, including protective goggles, a face shield, earplugs and a dust mask.
Do not remove the angle grinder guard.
Check for cracks or missing flaps before use. Do not use a damaged flap disc.
Apply even, moderate pressure. Excessive force can damage the disc or workpiece.
Storage
Store in a cool, dry place away from moisture.
Avoid direct sunlight to prevent adhesive aging.
Store flat and avoid heavy pressure that could cause deformation.
Resources
Documents
Data sheets, test reports and packing details for this product are issued on request. Send an inquiry and our technical team will return the documents that match your application.
Request documentsInquiry
Request a quote.
For Ceramic Alumina Flap Disc
Tell us the specification, quantity and destination. We reply with pricing, lead time and packing options for wholesale and OEM orders.
Ceramic Alumina Flap Disc Pricing, lead time and packing for wholesale and OEM orders.