What is the difference between NamPower disc brush types?

Dot Style brushes are an economical choice for light deburring and general-purpose surface finishing. Turbine Style brushes, with their high-density structure, provide shorter cycle times and longer tool life in medium and heavy deburring applications.

Which grit size should I choose?

The general rule is to choose the coarsest grit that achieves the desired surface quality. 80 grit: Ra 1.4-1.5, 120 grit: Ra 1-1.4, 180 grit: Ra 0.7-1, 320 grit: Ra 0.6-0.7. Coarser grit tools are preferred for hard burrs.

Can NamPower be used on a CNC machine?

Yes. NamPower disc brushes can be easily integrated into NC, CNC machining centers, transfer machines and robotic applications. The unique bi-directional drive system provides 360-degree surface processing.

How is the filament length selected?

18 mm and 38 mm filament lengths are available. Longer filament brushes are more flexible and less aggressive. Shorter filament brushes are less flexible but more aggressive. Selection is based on burr size, part geometry and surface quality requirements.

NamPower

NamPower Abrasive Disc Brushes

The highest quality professional deburring, edge blending and surface finishing tools on the market. Ceramic and silicon carbide abrasive nylon filaments deliver maximum deburring rate and ideal surface quality.

Dot Style and Turbine Style brush options
6" (150mm) and 8" (200mm) diameter options
18mm and 38mm filament lengths
CNC, transfer machine and robotics compatible
360-degree surface processing — works in both directions

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Overview

NamPower Disc Brushes

NamPower disc brushes consist of flexible abrasive nylon filaments bonded to a fiber-reinforced thermoplastic base. The unique combination of ceramic and silicon carbide delivers maximum deburring rate and ideal surface quality simultaneously. Manufactured for use on semi-automatic and fully automatic machines (NC, CNC and robotic applications).

Reliable, consistent and cost-effective results
High-density, balanced and shatter-proof construction
Superior alternative to wire brushes and non-woven abrasive brushes
Used for turbine blades, steel gears, machine parts and shaft finishing

Brush Selection

Brush Type Selection

Two main brush types are available. Choosing the right type for your application is critical for performance.

NamPower Dot Style disc brush — **Dot Style** — Light deburring and surface finishing

NamPower Turbine Style disc brush — **Turbine Style** — Medium and heavy deburring

Brush Type	Application Area	Penetration Depth
Dot Style	General-purpose deburring, surface finishing, light applications. Extra flexibility — small holes and tight areas.	0.381 – 3.962 mm
Turbine Style	Medium and heavy deburring. High-density structure — shorter cycle time, longer tool life.	0.177 – 2.362 mm

Technical Data

Grit Selection Table

Grit selection depends on the starting surface quality and desired result. The general rule is to use the coarsest grit that achieves the desired surface quality.

Grit	Starting Ra Value
80	1.4 – 1.5
120	1.0 – 1.4
180	0.7 – 1.0
320	0.6 – 0.7

Brush Diameter

Brush Diameter Selection and Part Coverage

The ideal brush should be 70mm larger than the workpiece. The brush centerline should be aligned so it extends at least 35mm past the target edge. NamPower disc brushes are available in standard 6 inch (150mm) and 8 inch (200mm) diameters.

NamPower brush path and rotation direction — Brush path and rotation direction

NamPower disc brush width options — Disc brush width options

Cutting Depth

Filament Diameter and Cutting Depth

Filament Diameter / Grit	152mm Disc Brush (mm)	203mm Disc Brush (mm)
0.045 / 500	3.81	3.81
0.55 / 320	3.81	3.81
0.55 / 120	3.81	3.81
0.88 / 180	1.90	1.90
1.01 / 80	1.90	1.90
1.01 / 120	1.90	1.90

Apply up to 10% of available filament length for fine filament brushes and up to 5% for thick filament brushes.

Processing Parameters

Feed Rate by Material

Material	Feed Rate
Non-ferrous metals	2,032 m/min
Cast iron	1,524 m/min
Mild steel and cast iron	1,270 m/min
Stainless and alloy steels	0.762 m/min
Titanium and high nickel alloys	0.762 m/min

Contoured surfaces should be processed at lower speeds and higher pressure than flat surfaces.

RPM Setting

RPM Recommendations

Correct RPM setting is critical to prevent overheating and nylon smearing on the surface. The maximum RPM printed on the brush is not the appropriate operating speed.

NamPower brush RPM guide — RPM guide — MSMFS (Minimum Safe Free Speed)

Dry applications: Stay below 2,500 rpm
Wet applications: Stay below 3,500 rpm
A 150mm brush at 1,400 rpm is more effective than at 2,800 rpm
Excessive speed, especially on long filament brushes, causes filament bending and bouncing

Application Guide

Application Guidelines

For more aggressiveness: Reduce filament length, use larger diameter brush, increase grit size, prefer turbine style, increase RPM and pressure.

For less aggressiveness: Increase filament length, use smaller diameter brush, use fine grit, prefer dot style, reduce pressure.

For contouring: Increase filament length, use fine grit and dot style brush, increase pressure.

For fine surface: Use with coolant, prefer long filament brush, increase RPM.

Applications

Application Areas

NamPower disc brush application example — NamPower application example

Burr removal and deburring
Rust removal
Gasket cleaning
Pre-paint and pre-coating cleaning
Pre-casting mold cleaning
Face surface finishing
Weld cleaning
Fiberglass and plastic automotive parts

Videos

NamPower Application Videos

NamPower Deburring Application

Looking for the right brush for your deburring and surface finishing application?

Let us help you select the most suitable NamPower configuration based on your material, burr size and surface quality requirements.

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