8447 Red Nonwoven Polish Disc
The 8447 Red Nonwoven Polish Disc is an 8 inch diameter abrasive disc with a 1/2 inch center hole, designed for deburring, denibbing, defuzzing, and cleaning a range of metals. It uses very fine silicon carbide abrasive embedded in a tough nonwoven material, allowing for consistent finishes and...
Product Overview
The 8447 Red Nonwoven Polish Disc is an 8 inch diameter abrasive disc with a 1/2 inch center hole, designed for deburring, denibbing, defuzzing, and cleaning a range of metals. It uses very fine silicon carbide abrasive embedded in a tough nonwoven material, allowing for consistent finishes and extended disc life. The disc is rated for up to 3000 RPM and can be stacked to cover larger surface areas or increase material removal. It is used in hand or machine-powered applications where conformability and load resistance are required.
Key Benefits
- Very fine silicon carbide abrasive provides fast cutting on non-ferrous metals
- Nonwoven structure resists tearing and maintains edge integrity during use
- Stackable design allows for increased material removal or coverage of larger surfaces
- Conformable surface delivers consistent finish on irregular or curved parts
- Rated for 3000 RPM, suitable for standard power tools and polishing machines
- Red color indicates the very fine grade and helps identify the disc type in use
Application Scenarios
- A metal finishing shop replacing disposable sanding discs with reusable nonwoven discs for deburring aluminum parts
- A cookware manufacturer using the disc to clean and finish stainless steel surfaces after machining
- A jewellery workshop applying the disc to smooth and polish small metal components without scratching
- A workshop needing a consistent finish on multiple parts with varying geometries, where rigid discs would not conform
Who It Is For
- Metal finishing and polishing shops
- Cookware, tableware, and sanitary ware manufacturers
- Jewellery and small metal component producers
- Workshops using hand or bench-mounted power tools for surface preparation
Problems It Solves
- Disposable discs wear out quickly and create high material cost per part
- Rigid discs fail to conform to curved or irregular surfaces, leaving inconsistent finishes
- Manual sanding takes longer and produces variable results across operators
- Lack of load resistance in standard discs causes rapid dulling and reduced cut rate over time
- No clear visual indicator of disc grade leads to incorrect selection in mixed-use environments
Technical Features
- 8 inch diameter with 1/2 inch center hole for standard arbor connection
- Very fine grade silicon carbide abrasive embedded in nonwoven backing
- Open-web structure allows for dust and swarf to escape during use
- Tough nonwoven material resists tearing under pressure and maintains shape
- Stackable design enables use in multiple layers for extended life or higher cut rate
- Red color indicates very fine grade and helps prevent mix-ups with other disc types
Specifications
| Disc Diameter | 8 inch |
|---|---|
| Abrasive Material | Silicon Carbide |
| Grade | Very Fine |
| Center Hole Size | 1/2 inch |
| Connector Type | Arbor |
| Color | Red |
| Maximum RPM | 3000 |
Values taken from the manufacturer data for this model. Anything not listed is confirmed on request before order.
Materials
- Silicon carbide abrasive particles
- Nonwoven fibrous backing material
- Adhesive layer bonding abrasive to backing
- Steel or plastic arbor for center hole
Manufacturing And Process
Step 1
Mount the disc onto a power tool arbor with a 1/2 inch hole
Step 2
Ensure the tool operates within the 3000 RPM limit
Step 3
Apply even pressure to maintain consistent contact with the workpiece
Step 4
Use single or stacked discs depending on required cut rate or surface area
Step 5
Replace when the abrasive wears down or the backing shows visible damage
Step 6
Clean the disc surface after use to remove embedded debris and extend life
Quality Control
- Each disc is inspected for uniform abrasive distribution and backing integrity before packaging
- Sample discs tested under standard load and speed conditions to verify performance
- Consistent color and grade labeling used across batches to prevent misidentification
- Stacking capability verified through load and wear testing
- RPM rating confirmed with material durability testing
Customization Options
- Available in red color only as per the standard specification
- No custom abrasive grades or diameters offered beyond the 8 inch standard
- No custom center hole sizes or connector types available
- Packaging can be adjusted for bulk orders upon request
Compared With The Alternatives
| 8447 Blue Nonwoven Polish Disc | The blue version is a medium grade; the red is very fine, suitable for finer finishes and softer materials |
|---|---|
| Standard Sanding Discs | Sanding discs are rigid and less conformable; the nonwoven disc maintains contact on uneven surfaces |
| Manual Hand Sanding | Hand sanding is slower and inconsistent; the disc delivers repeatable results at higher throughput |
Use Guide
- Use only on tools rated for 3000 RPM or lower to avoid disc failure
- Do not exceed recommended pressure to prevent premature wear or edge roll
- Clean the disc after each use to prevent clogging and maintain cut rate
- Stack no more than two discs unless specified for a particular application
- Replace the disc when the abrasive layer is worn down or the backing shows signs of damage
8447 Red Nonwoven Polish Disc FAQ
What is the maximum RPM for this disc?
3000 RPM. Do not exceed this speed to avoid safety risks or disc failure.
Can I stack more than one disc?
Yes, the disc is designed to be stacked. Two discs are recommended for most applications.
What materials is this disc suitable for?
Non-ferrous metals such as aluminum, brass, and copper. Not recommended for high-pressure or ferrous metal applications.
Is the disc reusable?
Yes, the nonwoven structure allows for multiple uses until the abrasive wears down or the backing fails.
What is the center hole size?
1/2 inch, compatible with standard arbor connections on power tools.
What does the red color indicate?
Red indicates the very fine grade of silicon carbide abrasive used in the disc.
How long does one disc last?
Lifespan depends on material, pressure, and usage. Typically lasts for several hours of continuous use on soft metals.
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