4 Inch Ceramic Resin Fiber Sanding Discs

1. Product overview
3Q Ceramic Steel paper diaphragm FS970 is a high performance industrial grade heavy grinding tool, using advanced ceramic abrasives and high strength steel paper backing, with extremely strong cutting force, durability and high temperature resistance. The product is especially suitable for demanding applications such as high-strength metal processing, stainless steel polishing, welding processing, titanium alloy grinding, etc., providing faster cutting speeds and longer service life.

The FS970 uses a special ceramic abrasive structure with excellent self-sharpening properties, which can maintain continuous sharpness in high-pressure grinding environments, improve production efficiency, reduce the frequency of sand disc replacement, and reduce labor and material costs.

2. Main features
✅ Premium Ceramic Grain ✅ Premium ceramic grain

With excellent cutting force and self-sharpening, it can easily grind stainless steel, high-strength alloy steel, titanium alloy, carbon steel, cast iron and other metal materials.
The grinding process is continuously sharp, reducing the grinding temperature and improving the processing efficiency.
✅ Fiber Backing

High density fiber reinforced back base with excellent tear resistance and wear resistance, suitable for high pressure grinding.
It can still maintain stability under high speed and high load, and is not easy to break or deformation.
✅ Heat-Resistant Coating

Special heat resistant coating is used to effectively reduce the heat generated during grinding and prevent the workpiece from burning or discoloration.
Suitable for high temperature metal grinding operations, such as stainless steel and high hardness alloys grinding.
✅ Anti-Clogging Coating

Special surface coatings reduce metal chip adhesion, prevent clogging, and increase grinding efficiency and service life.
✅ Extended Durability

Compared with traditional alumina or zirconium corundum products, the service life of FS970 is extended by 2 to 3 times, reducing the frequency of replacement and improving economic efficiency.

3. Grit Size
3Q FS970 ceramic steel paper diaphragm is available in a variety of mesh numbers to meet different grinding needs:

Mesh number applies to the process
24# ~ 36# rough grinding, quick removal of weld, heavy rust, oxidation layer, spray before treatment
40# ~ 60# medium grinding, deburring, surface homogenization treatment
80# ~ 120# fine grinding, improve the finish, suitable for fine grinding

4. Dimensions
The FS970 is available in a variety of conventional sizes to fit different Angle grinders and grinders:

4" (100mm)
4.5" (115mm)
5" (125mm)
7" (180mm)
Pass type: Optional non-porous/porous (vacuum type), suitable for different grinding equipment

5. Main Application Scenarios
✅ Metal Fabrication

Stainless steel polishing: remove weld, surface drawing, fine polishing treatment
Casting deburring: suitable for rough grinding and cleaning of gray cast iron, ductile cast iron and other materials
✅ Welding & Grinding

Weld removal: Efficient removal of welds, improve surface smoothness
Welding oxide cleaning: reduce the surface defects after welding, improve the quality of the finished product
✅ Automotive & Repair (Automotive & Repair)

Body repair: sanding the metal surface to remove the old paint layer
Sheet metal processing: Improve the surface treatment quality and provide better adhesion for subsequent spraying
✅ Shipbuilding

Steel plate polishing: remove oxidation layer, welding slag, improve corrosion resistance treatment effect
Anti-corrosion coating treatment: improve the adhesion of anti-corrosion coating, prolong the service life of the hull
✅ Aerospace

Superalloy grinding to ensure component finish and wear resistance
Efficient solutions for grinding titanium alloys and difficult-to-process materials