跳至内容 
Sanding Belt Manufacturer
Rex manufactures sanding belts to custom sizes, with width and length made to fit your machine. Four abrasives are available: aluminum oxide, zirconia, silicon carbide and ceramic. You can choose a butt joint or a lap joint. The belts suit handheld sanders, bench machines and industrial sanding equipment.
- Home
- Sanding Belts
Sizes: Matched to Your Machine
There is no universal sanding belt size. The belt must match the machine. The table below lists common sizes on the market, and Rex can also produce any size.
| Size (in) | Size (mm) | Common Machines |
|---|---|---|
| 1 × 30 | 25 × 762 | Small bench belt sanders |
| 2 × 72 | 50 × 1830 | Knife grinders |
| 3 × 18 / 3 × 21 | 75 × 457 / 75 × 533 | Handheld belt sanders |
| 4 × 24 | 100 × 610 | Handheld belt sanders |
| 6 × 48 | 150 × 1220 | Bench belt sanders |
For wide belts and non-standard sizes, just give the width × length in your RFQ.
Joints: Butt Joint or Lap Joint
- Butt joint The ends meet flush, with splice tape on the back. The joint is flat with no step. Suits fine sanding, wide belts and bidirectional running
- Lap joint The ends overlap and are bonded. The joint is slightly thicker and very strong. Suits heavy-duty grinding and one-direction running
Not sure which to choose? Tell Rex your machine and workpiece, and Rex will recommend one.
Backing: Sets Belt Strength and Flexibility
- J-weight cloth Soft and conforms to curves. Suits profiles and fine sanding
- X-weight cloth Balances strength and flexibility. General purpose
- Y-weight cloth High strength and tensile resistance. Suits heavy-duty work and wide belts
- Paper backing Flat and low cost. Suits fine sanding of wood and panels
The backings Rex can supply are confirmed when quoting.
4 Abrasives
Aluminum oxide
General use on wood and carbon steel
Zirconia
Heavy grinding of carbon steel and stainless steel, with long life
Silicon carbide
Stone, glass, non-ferrous metals and painted surfaces
Ceramic
Hard-to-grind metals and heavy loads, with a lower grinding temperature
How to Choose the Grit
- P24–P36 Heavy stock removal, weld seams, rough shaping
- P40–P60 General grinding, leveling wood
- P80–P120 Surface preparation, edge sanding, preparation before painting
- P150–P240 Fine sanding, furniture finishing
- P320 and finer Preparation before polishing
Choose Belts by Workpiece Material
| Workpiece | Recommended Abrasive | Common Grits |
|---|---|---|
| Wood, panels | Aluminum oxide | P60–P240 |
| Carbon steel | Aluminum oxide, zirconia | P36–P120 |
| Stainless steel | Zirconia, ceramic | P40–P240 |
| Stone, glass | Silicon carbide | Chosen by process step |
Industries
Woodworking and furniture
Panel thicknessing, leveling, fine sanding
Metalworking
Weld removal, deburring, satin / brushed finishing
Knife making
sanding pipe interiors, finishing around welds
Stone and glass
Edge grinding, preparation before polishing
Rex's Production Process
01. Precision cutting
Bias-cut to length for an accurate circumference
02. Edge treatment
Edge grinding and edge pressing reduce frayed edges and delamination
03. Joint pressing
Controls joint strength and flatness
04. Slitting
Slit to width
05. Inspection
Checks size, joint and appearance
How to Diagnose Common Sanding Belt Problems
- Breaks at the joint The joint type is wrong, or the tension is too high
- Belt tracking problems The machine tracking is not adjusted, or the two edges of the belt differ in length
- Worn or frayed edges The tracking is off, so the belt edge rubs against the machine frame
- Stops cutting quickly The wrong abrasive or grit, or too little pressure
If you see these problems, send photos or return samples. Rex will help you work out whether it is a specification issue or a usage issue.
Private Label and Packaging
- Back printing with brand, grit and running direction arrow
- Single packs, multi-packs, mixed-grit packs
Get a Sanding Belt Quote in 3 Steps
Sanding belts come in many specifications. The fastest way is to tell Rex your machine:
- 01.Send details The machine model, or a photo of your old belt (ideally showing the printing on the back)
- 02.Rex confirms the specification Size, joint, backing, abrasive and grit
- 03.Sample testing Bulk production starts after the samples pass
For Factories: Stock Belts for Every Process Step
Production lines usually use more than one type of belt. Stocking belts for all process steps at once reduces the number of purchases:
- Coarse grinding P36–P60, zirconia or ceramic, for weld removal and stock removal
- Medium grinding P80–P120, for leveling and removing scratch marks
- Fine grinding P150–P240, for preparation before painting and satin / brushed finishing
Belts in different sizes and grits can go in one order.
What to Include in Your RFQ
- Width × length (or machine model)
- Abrasive and grit
- Joint type (leave blank if unsure)
- Workpiece material
- Packaging and quantity
MOQ, lead time and price are confirmed by Rex’s sales team when quoting.
Frequently Asked Questions
We work systematically to integrate corporate responsibility in our core business and make our expertise available for the benefit of the societies where we operate.
I only know the machine model, not the belt size. What should I do?
Send the machine model or a photo of your old belt. Rex will confirm the size for you.
Can Rex make non-standard sizes?
Yes. Both width and length are made to your requirements.
Which sanding belts work on stainless steel?
Zirconia or ceramic. Start coarse grinding at P40, and go up to P240 for satin / brushed finishing and final finishing.
Which sanding belts work on wood?
Aluminum oxide belts. Use P60–P80 for coarse sanding, P100–P150 for leveling and P180–P240 before finishing.
Can I test samples first?
Yes. Samples are made before bulk production. The sample policy is confirmed when quoting.
Advanced Coated Abrasive Factory in China
Get a Quote
Send the product, size, grit and quantity, plus any sample photos or drawings. Rex’s sales team will reply with a quote and a sample plan.