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Brown Fused Alumina Micro Powder

Precision abrasive solution for superfine grinding, polishing and lapping applications. Consistent particle size distribution for superior surface finishes.

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Superior Performance in Precision Applications

Our Brown Fused Alumina Micro Powder delivers exceptional results in the most demanding fine finishing operations

Precise Particle Size

Consistent micron-sized particles with narrow distribution for predictable, repeatable finishing results.

High Purity

Al₂O₃ content exceeding 95% ensures optimal cutting performance and minimal contamination.

Fast Cutting Action

Sharp, blocky grain shape provides aggressive cutting while maintaining surface quality.

Consistent Quality

Rigorous quality control ensures batch-to-batch consistency for your production processes.

Technical Specifications

Chemical Composition (Al₂O₃)	≥ 95%
Mohs Hardness	9.0
Particle Shape	Angular, Blocky
Standard Sizes	W63, W50, W40, W28, W20, W14, W10, W7, W5, W3.5, W2.5, W1.5, W1.0, W0.5
Color	Dark Brown
Melting Point	2050°C

Applications

Precision Lapping

Optical components

Semiconductor wafers

Gauge blocks

Valve components

Superfine Grinding

Ceramic components

Hardened steel parts

Tungsten carbide tools

Glass and quartz

Polishing Compounds

Metal polishing pastes

Vibratory finishing

Buffing compounds

Diamond tool dressing

Grit Size Selection Guide

Choose the right micron size for your specific application requirements

Micron Size	FEPA Designation	Typical Applications	Surface Finish (Ra μm)
53-63 μm	W63	Rough lapping, stock removal	0.8-1.2
40-53 μm	W50	General purpose lapping	0.5-0.8
28-40 μm	W40	Fine grinding, pre-polishing	0.3-0.5
20-28 μm	W28	Precision lapping	0.2-0.3
14-20 μm	W20	Fine polishing	0.1-0.2
10-14 μm	W14	Ultra-fine polishing	0.05-0.1
7-10 μm	W10	Superfinishing	0.03-0.05
5-7 μm	W7	Mirror finishing	0.02-0.03

Unsure about the right grit size for your application? Consult our technical team.

Why Choose Nytwo Micro Powder?

With over 30 years of experience in abrasive manufacturing, we deliver quality you can trust

30+

Years Experience

Specialized in abrasive manufacturing since establishment

ISO9001

Quality Certified

Stringent quality control throughout production process

5000+

Tons Annual Capacity

Reliable supply for both small and large volume orders

Our Quality Control Process

0 1

Raw Material Inspection

Electric Arc Furnace Fusion

Crushing & Milling

Precise Classification

Magnetic Separation

Particle Size Analysis

Quality Verification

Packaging & Shipping

Customer Feedback

What our clients say about our Brown Fused Alumina Micro Powder

"The W10 micro powder from Nytwo has significantly improved our polishing process for optical components. The consistent particle size distribution gives us predictable results batch after batch."

Aaron

Precision Optics Manufacturer, Germany

"We've been using Nytwo's W28 alumina powder for lapping our semiconductor wafers. The purity and consistent quality have helped us maintain our production standards while reducing defects."

Sophia

Electronics Component Supplier, Japan

"The technical support from Nytwo helped us select the right micron size for our hardened steel components. Their W14 powder delivered the surface finish we needed while maintaining good cutting efficiency."