CBS Elastic Polishing Wheel

Core Product Characteristics

1. Elastic & Water-absorbable Structure
   CBS wheel adopts unique sponge resin base with great elasticity and water absorption. Its hardness can be freely adjusted via different additives, perfectly matching both rough cutting and ultra-fine mirror polishing demands in one wheel.
2. Universal Mirror Polishing Capacity
   It is specially developed for high-standard mirror finish grinding tasks, widely used on magnetic heads, bearing sleeves, transmission shafts and precision injection molds, solving surface scratch and dullness issues of traditional rigid grinding wheels.
3. Fully Customizable Specs & Sizes
   Compatible with all mainstream surface grinding machines. We customize wheel dimension, grit, hardness and profile according to customers’ workpiece material, allowance and roughness target, to maximize processing quality and production efficiency.
4. Moderate Self-sharpening Performance
   Controlled self-sharpening avoids excessive abrasive shedding while maintaining stable cutting power. It effectively reduces daily dressing times, lowering machine downtime and consumable loss for mass production lines.
5. Anti-loading for Ductile Materials
   The porous elastic structure prevents chip adhesion when grinding highly ductile soft materials like aluminum alloy, eliminating scratch defects caused by accumulated debris on wheel surface.

Main Application Scenarios CBS

• Aluminum alloy mirror polishing
• Beauty cutlery & industrial blade edge polishing
• Precision mold surface finishing
• HSP heterogeneous surface polishing for PCB copper substrates
• Magnetic head, bearing sleeve & transmission shaft ultra-fine grinding

Standard Specification Matching Table

Workpiece Material	Matching Abrasive	Wheel Grit Options	Hardness Grade	Hardness Description
Aluminum Alloy	GC Green Silicon Carbide	280#, 320#, 500#, 600#, 800#, 1000#, 2000#, 3000#	Hard	2H
Stainless Steel / Tool Steel	WA White Alumina	280#, 320#, 500#, 600#, 800#, 1000#, 2000#, 3000#	Medium	3M / 2M / 1M
–	–	–	Soft	2S / 1S

*All non-standard dimensions, grit and hardness can be customized upon inquiry.

Actual Machining Case Study

Original Grinding Trouble

When customers used conventional vitrified wheels for 5XXX aluminum alloy grinding, frequent abrasive shedding and workpiece loading occurred, resulting in continuous surface scratches on finished aluminum parts.
Target Surface Roughness: Ra 0.3 ~ 0.5

Improvement Solution

Replace with Anchor CBS GC320# elastic polishing wheel. The sponge elastic base reduces abrasive loss and chip loading, greatly improving surface gloss and uniformity.

Complete Processing Parameters

Parameter Item	Rough Grinding Setting	Fine Grinding Setting
Workpiece Material	5XXX Aluminum Alloy	5XXX Aluminum Alloy
Machine Model	Yuqing Surface Grinder	Yuqing Surface Grinder
Wheel Rotation Speed	3100 rpm	3100 rpm
Infeed Depth Per Pass	5μm	1μm
Spark-out Grinding Times	0 times	5 times
Longitudinal Feed Speed	13m/min	13m/min
Cross Feed Per Pass	2.5mm	2.5mm
Total Stock Removal	20μm	5μm
Dressing Tool	Single-point diamond dresser	Single-point diamond dresser
Dressing Wheel RPM	800 rpm	800 rpm
Dressing Infeed Per Pass	2μm, total dressing removal 10μm	2μm, total dressing removal 10μm
Wheel Model	GC3201M2-5CBS1A	GC3201M2-5CBS1A
Wheel Dimension	205mm*13mm*31.75mm	205mm*13mm*31.75mm

Final Test Result

Anchor GC3201M2-5CBS1A achieves surface roughness Ra0.27, exceeding the customer’s Ra0.3~0.5 standard. If ultra-fine mirror finish is not required, the spark-out grinding cycle can be reduced to boost production efficiency. In addition, wheel dynamic balance calibration further stabilizes surface roughness and raises finished product yield.

Product Comprehensive Advantages Summary

1. Solve typical aluminum alloy grinding defects: anti-loading, less abrasive shedding, eliminate surface scratch.
2. Dual-function design for both cutting and mirror polishing, simplify grinding process and reduce wheel replacement types.
3. Adjustable hardness & rich grit options, match soft aluminum alloy and hard stainless steel / tool steel separately.
4. Lower dressing frequency, extend wheel service life, cut long-term production consumable cost.
5. Wide compatibility with all common surface grinders, customized sizes available for special mold & PCB substrate production lines.

Custom Service Notice

If you have special requirements on wheel outer diameter, thickness, bore, grit, hardness and profile shape, please contact our sales team for technical drawings and quotation.