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PVA Grinding Wheel/Elastic Flap Disc Grit: 60-400# Cleaning,Deburring,Finishing,Grinding,polishing,Surface preparation

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TYPE: aluminium flap grinding disc grinding action and smooth running wheels
BOND: Wheels for the Aerospace & Gas Turbine Industries
TAG: Abrasives uses only the highest quality grains and backing material for our flap discs. Designed for grinding, blending and finishing on a wide range of metal. The #1 choice for welders and metal fabricators. Made in accordance with ANSI safety
Application: Metal
  • Product Details
  • Company Profile

PVA Grinding Wheel/Elastic Flap Disc Grit: 60-400# Cleaning,Deburring,Finishing,Grinding,polishing,Surface preparation

Flap Disc Flap Wheel 2 Inches for Angle Grinder, TOUGH GRIND, Type 27 Aluminum Oxide Abrasive(40 60 80 120 Grits),Cutoff Wheels for Metal EXTREMELY FAST GRINDING Cutoff Wheels for Bench Grinders Zirconia Alumina Flap Disc Calcined Aluminium Oxide Flap Disc Flap Disc with Aluminium Oxide Non Woven Flap Disc

Product Name: PVA Grinding Wheel/Elastic Flap Disc

Material: Aluminium Oxide/Silicon Carbide/Zirconia Alumina/Ceramic Grain

Thickness: 10mm

Maximum line speed: 60

Grit: 60-400#

Outer diameter: 100mm

Inside diameter: 16mm

Specifications: 100*10*16, 4 inch

Note: Other sizes can be customized

Description of PVA Grinding Wheel/Elastic Flap Disc

The PVA grinding wheel, also known as the "sponge grinding wheel", is an elastic grinding wheel with a sponge-like structure. It is especially suitable for grinding and polishing soft metal materials that are easily ground and burned, such as stainless steel, copper, aluminum and other soft metals and non-metallic materials such as stone, glass, wood, rubber, plastic, Leather, resin products, etc.

PVA round grinding wheel

PVA Grinding Wheel/Elastic Flap Disc Features:

Bonded with special fiber materials, it has high tensile, impact and flexural strength, high grinding efficiency, safe and convenient to use, efficient and economical.

PVA Grinding Wheel/Elastic Flap Disc Application

1. Widely used in cleaning welding seams, solder joints, grinding burrs, flashing edges, and repairing metal surface defects in automobiles, ships, machinery manufacturing, metallurgical chemicals, etc.

2. It is suitable for polishing with the edges, corners and edges of stone, board and wood after cutting;

3. It is especially suitable for repairing surface defects of stainless steel work-pieces and glass ornaments.

Product Material: Woven Fabric Surface Fiberglass Backing Pad

Layer: 6-12

Type: T27, T29

Size: 75mm, 90mm, 95mm, 107mm, 117mm, 140mm, 220mm

Layers: Normally it ranges from 6-12 layers, or as customers’ other requirements.

Fibre Fabric Surface Backing Pad Features

No glue penetration

High-strength and light-weight

Flexibility fiberglass fabric

Excellent bonding property and heat resistance

Strict detection,inspection and testing

Material Flap Disc
Condition New
Pack of pieces 100 Pcs
Shape Round
Packing Type Box
Size 100 MM , 125 Mm & 180 MM
Grit 36 , 60 ,80 ,`120, 220 , 320

Cleaning
Deburring
Finishing
Grinding
Polishing
Surface preparation
Sweeping

Application

Fiberglass Backing Pad with Finer Woven Cloth Surface is used as the backing pads of flap discs ,

clean and strip disc, felt disc, elastic flap disc, diamond flap disc and other abrasive discs.

Package:

a. Each shrink(20-50pcs) is wrapped in polyethylene film and put into boxes of different sizes according to their diameters.

b. Cartons are wrapped with plastic films of two to three layers and placed on pallets.

Product Name:Purple Strip and Clean Disc

Material:Premium Silicon Carbide and Nylon

Backing:Fiberglass Backing

Diameter:4”, 4.5”, 5”,6”, 7”

Hardness: Purple > Blue > Black

Durability: Purple > Blue > Black

Features

Purple Strip and Clean Disc is durable and works faster and more effectively than other conventional abrasives. It is sharp and flexible and doesn’t clog with shavings, so that you can continue sanding without any problems.

The hardness causes the disc to grind more effectively and prolong the tool life.

Strip and Clean Disc Application

Purple Strip and Clean Disc is made of tough clean and strip material. It is specially designed for surface treatment and cleaning metal, wood, plastics and stone.

Product Name: Combined Flap Discs

material:Premium ceramic alumina /zirconia alumina

Type:T27 best used on flat surfaces for blending and smooth finishing

Backing:Plastic backing plates,Poly/cotton backing

Grit:40-320#

Features

Combined Flap Discs have excellent performance and efficiencies on mild carbon steel and ferrous metal/cast iron applications.

Medium 120 grit for stock removal, beveling and edge chamfering

The backing combination for good cut rate and finishing

Specification

Name:Radial Flap Discs

Material:Premium Aluminium Oxide

Backing:Nylon Backing (Fiberglass Backing Available)

Type: T27/T29

Diameter: 100mm,115mm,125mm,150mm,180mm,can be customized

Grit:40-320#

Features

Bonded to extremely strong but durable mental

Rust removal

Good heat eliminating

Used long than flexible grinding disc

Fast,aggressive action for high pressure grinding,high efficiency

Low grinding and polishing cost in total

Application

Metal surface grinding and polishing,weld seams grinding,rust removing, etc.

Product Name:Non Woven Flap Disc

Material :Non Woven Material,fiberglass backing

Grit No: Coarse (yellow) 150#, Medium (red) 240#, Fine (blue) 400#

Features: Excellent self-sharpening, synchronous grinding, working quickly and efficiently

Suitable for: Welding, casting and various metal manufacturing industries, surface transition, edge grinding, weld bevel processing, stainless steel and high carbon steel grinding and polishing

Specifications:

Size

(mm/inch)

Backing material Type Abrasive Grit No.
100 x 16 4 x 5/8 Fiberglass, Plastic T27,T28, T29 A,HA,ZA,CER 36-320
115 x 22 4-1/2 x 7/8 Fiberglass,Plastic T27,T28, T29 A,HA,ZA,CER 36-320
125 x 22 5 x 7/8 Fiberglass,Plastic T27,T28, T29 A,HA,ZA,CER 36-320
150 x 22 6 x 7/8 Fiberglass,Plastic T27,T28, T29 A,HA,ZA,CER 36-320
180 x 22 7 x 7/8 Fiberglass,Plastic T27,T28, T29 A,HA,ZA,CER 36-320
230 x 22 9 x 7/8 Fiberglass,Plastic T27,T28, T29 A,HA,ZA,CER 36-320

Customized Products: other sizes can be customized with customer needs

Product name:Flap Disc with Aluminium Oxide

Material: Aluminium Oxide, Fiberglass backing pad

Grit No: 40#,60#,80#,120#

Features: high quality Aluminium Oxide cloth, good flexibility, high tensile and better bending strength, high grinding efficiency, low noise and no clogging.

Suitable for: Metal surface grinding and polishing, weld seams grinding, rust removing

Specifications

Product name:Calcined Aluminium Oxide Flap Disc

Material: Calcined Aluminium Oxide, Fiberglass backing

Grit No: 40#-320#

Features: High quality Calcined Aluminium Oxide cloth, better for heavy grinding, excellent durability and sharpness

Suitable for: Metal and high hardness materials surface grinding and polishing, weld seams grinding, rust removing

  • Soft bond for extremely fast stock removal on hard metals with minimal pressure
  • High performance, ceramic aluminum oxide grain, is designed to outlast standard aluminum oxide wheels
  • Very uniform, high density grain structure is extremely durable and self sharpening for long life and cooler cut
  • Type 27

Blaze R980P CA Coarse Grit Center Mount Plastic Flat Flap Disc

Product name:Ceramic Grain Flap Disc

Material: VSM /Kingcattle/Fareast Ceramic Grain; fiberglass backing

Features: Ceramic Grain, elastic structure, excellent self-sharpping, strong wear

Suitable for: grinding curved surface and contour, consistency and long life under any pressure.

Grit No: 36-320#

Features & Benefits
Performer non-woven unitized wheels are made by compressing layers of non-woven abrasive materials, with special nylon fibre that adhere with the abrasive.
That grinding process provides self-sharpening of the wheel resulting in consistent quality and a homogenous and even finish.
Used for de-burring and polishing, both in one process only.
Made up of high quality nylon fibre, it removes surface defects & gives decorative finish.
Applications
Suitable for brass, stainless steel, aluminium mild steel
Suitable for hand tools
Surgical instruments
Gear
Cutlery and metal fabrication
  • Abrasive : Premium Ceramic Alumina
  • Attachment : Arbor Thread
  • Backing Material : Y-wt. Polyester
  • Abrasive Type : Coated

Flap discs and wheels are suitable for:


- Grinding and finishing of welds
- Deburring, rust removal and snagging
- Suitable for most ferrous & non-ferrous materials
- Excellent for surface finishing

Flap discs A/O

Aluminium oxide coated, for alloy steel and low-alloy steel

Flap discs Z/A

Zirconia Alumina coated, for high-alloy, stainless, and heat-treated steel; high-tensile, non ferrous metals

Flap discs S/C

Silicon Carbide coated, for marble, stone, glass, and non ferrous metals

  • Description:
    10pcs 4 Inch 100mm 40/60/80/120 Grit Aluminum Oxide Flap Disc Sanding Grinding Wheels
    Cutoff Wheels for Angle Grinders
    Specification:

    Grit Size: 120, 80, 60, 40Grit
    Material: Aluminum oxide
    Outer diameter: Approx. 100mm/ 3.94"
    Inner diameter: Approx. 16mm/ 0.63"
    Max speed: 15000 rpm
    10pcs 4 Inch 100mm 40/60/80/120 Grit Aluminum Oxide Flap Disc Sanding Grinding WheelsCutoff Wheels for Angle Grinders

    Features:
    Applicable to general metal, carbon steel, alloy steel, stainless steel, cast iron, nonferrous metals and other weld grinding.


    Note:
    Please note that the package included one type only.

    Package Included:
    10 x 100mm Flap Discs

  • Available Variations:
    Fine (280 - 360 Grit) - Blue
    Medium (120 - 180 Grit) - Maroon
    Coarse (60 - 80 Grit) - Brown

Product Features:
• Premium nylon webbing surface conditioning material
• Strong fiberglass backing
• T29 Conical shape for most contact during use

Benefits of Surface Conditioning Flap Discs:
• Surface conditioning flap discs last 5 times longer than the flat discs.
• Surface conditioning flap discs provide a more consistent finish than discs.
• Surface conditioning flap discs do not require backing pad and can be used on a standard 4.5" angle grinder.

Works well on the following materials:
• Stainless Steel
• Standard or Alloyed Steel
• Non-Ferrous Metals and Alloys
• Plastic
• Fiberglass

Applications:
• Grinding, blending, finishing
• Deburring
• Deflashing
• Edge chamfering
• Stock removal

Specs:
• Type 29 - Conical
• Diameter = 4.5”
• Arbor Size = 7/8"
• Max RPM = 13300
• Material = Non-Woven
• Used on an angle grinder

  • Aluminum oxide grain
  • Soft bond for fast stock removal
  • Type 27

Cutoff Wheels for Straight Grinders
Cutoff Wheels for Angle Grinders
Cutoff Wheels for Bench Grinders
Cutoff Wheels for Floor-Mount Cutoff Saws
Miniature Dremel Cutoff Wheels for Metal
Portable Cutoff Saw Wheels for Metal
Cutoff Wheels for Miniature Dremels
Cutoff Wheels for RotoZip Spiral Saws

Cutoff Wheels for Miniature Dremels

  • Extra large high density flap disc containing over 50% more grinding material than standard flap discs ( Lasts twice as long as standard flap discs )

  • Made with premium Grains that are resin over resin bonded onto extra strong polyester / cotton flap material

  • Excellent for grinding, sanding, blending, or deburring on stainless steel, carbon steel, cast iron, titanium, hard wood and aarious other metals

  • Type 29 - (Conical) Angled Grinding Surface

  • Comes with 10 High Density Flap Discs

  • FAST GRINDING

  • Code Type Size in mm Size in Inch Grit Pages Max Speed Max. RPM
    AP50#40 T27 50 x 10 2" x 2/5" 40 30 80 m/s 15200
    AP50#60 T27 50 x 10 2" x 2/5" 60 30 80 m/s 15200
    AP50#80 T27 50 x 10 2" x 2/5" 80 30 80 m/s 15200
    AP50#120 T27 50 x 10 2" x 2/5" 120 30 80 m/s 15200
    AP100#40 T27, T29 100 x 16.3 4" x 5/8" 40 72 80 m/s 15200
    AP100#60 T27, T29 100 x 16.3 4" x 5/8" 60 72 80 m/s 15200
    AP100#80 T27, T29 100 x 16.3 4" x 5/8" 80 72 80 m/s 15200
    AP100#120 T27, T29 100 x 16.3 4" x 5/8" 120 72 80 m/s 15200
    AP115#40 T27, T29 115 x 22.3 4 1/2" x 7/8" 40 72 80 m/s 13300
    AP115#60 T27, T29 115 x 22.3 4 1/2" x 7/8" 60 72 80 m/s 13300
    AP115#80 T27, T29 115 x 22.3 4 1/2" x 7/8" 80 72 80 m/s 13300
    AP115#120 T27, T29 115 x 22.3 4 1/2" x 7/8" 120 72 80 m/s 13300
    AP125#40 T27, T29 125 x 22.3 5" x 7/8" 40 80 80 m/s 12200
    AP125#60 T27, T29 125 x 22.3 5" x 7/8" 60 80 80 m/s 12200
    AP125#80 T27, T29 125 x 22.3 5" x 7/8" 80 80 80 m/s 12200
    AP125#120 T27, T29 125 x 22.3 5" x 7/8" 120 80 80 m/s 12200
    AP150#40 T27, T29 150 x 22.3 6" x 7/8" 40 90 80 m/s 10200
    AP150#60 T27, T29 150 x 22.3 6" x 7/8" 60 90 80 m/s 10200
    AP150#80 T27, T29 150 x 22.3 6" x 7/8" 80 90 80 m/s 10200
    AP150#120 T27, T29 150 x 22.3 6" x 7/8" 120 90 80 m/s 10200
    AP180#40 T27, T29 180 x 22.3 7" x 7/8" 40 110 80 m/s 8600
    AP180#60 T27, T29 180 x 22.3 7" x 7/8" 60 110 80 m/s 8600
    AP180#80 T27, T29 180 x 22.3 7" x 7/8" 80 110 80 m/s 8600
    AP180#120 T27, T29 180 x 22.3 7" x 7/8" 120 110 80 m/s 8600
    AP230#40 T27, T29 230 x 22.3 9" x 7/8" 40 128 80 m/s 6000
    AP230#60 T27, T29 230 x 22.3 9" x 7/8" 60 128 80 m/s 6000
    AP230#80 T27, T29 230 x 22.3 9" x 7/8" 80 128 80 m/s 6000
    AP230#120 T27, T29 230 x 22.3 9" x 7/8" 120 128 80 m/s 6000
  • Aluminum Oxide abrasive is preferred for DIY use as it is the most cost-effective product for most DIY applications.

  • Designed for use on rust, paint, steel, and non-ferrous metals, along with any other surface that needs sanding

  • High-performance aluminum oxide with abrasive for extended disc life while also offering an aggressive cut

  • Applicable for grinding, stock removal, weld blending, debarring / def-lashing, rust removal, blending, cleaning and finishing

  • Flap discs do double-duty. They can replace bonded wheels and fiber discs because they grind and finish in a single step, making them a time and cost-saving solution in a wide range of applications, particularly where final finish and gouge-resistance are important.Use them for weld grinding, deburring, rust removal, edge grinding, and weld seam blendin

  • Grit 40: for aluminium and other soft non-ferrous metals, wood and plastics.

  • Vitrified grinding wheels
  • Resin-bonded cut-off and grinding discs
  • Flap discs
  • Coated abrasives
  • Wheels for the gear & bearing industry
  • Wheels for Aerospace and turbines industry
  • Hot Tags: 4.5 inch flap disc, manufacturers, suppliers, factory, wholesale, buy, cheap, price, customized
  • 1 4“ FLAP 100*16 60-120 RED 360 21 0.43 0.3 0.29 0.0374
    2 4“ FLAP 100*16 40 RED 360 21 0.43 0.3 0.29 0.0374
    3 4.5“ FLAP 115*22 60-120 RED 300 21 0.43 0.3 0.29 0.0374
    4 4.5“ FLAP 115*22 40 RED 300 21 0.43 0.3 0.29 0.0374
    5 5“ FLAP 125*22 60-120 RED 200 17 0.51 0.26 0.24 0.0318
    6 5“ FLAP 125*22 40 RED 200 17 0.51 0.26 0.24 0.0318
    7 6“ FLAP 150*22 60-120 RED 150 18 0.46 0.31 0.27 0.0385
    8 6“ FLAP 150*22 40 RED 150 18 0.46 0.31 0.27 0.0385
    9 7“ FLAP 180*22 60-120 RED 100 25 0.32 0.27 0.14 0.0121
    10 7“ FLAP 180*22 40 RED 100 25 0.32 0.27 0.14 0.0121
  • Abrasives uses only the highest quality grains

    and backing material for our flap discs.

  • Designed for grinding, blending and finishing on a wide range of metal.

  • The #1 choice for welders and metal fabricators.

  • Made in accordance with ANSI safety requirements.

  • For use on an Angle Grinder.

  • Fast-Cut Straight Grinder

Product Description

Type 27 High Density flap disc grinding wheels.

These flap discs are manufactured using European cloth.

The European material is superior due to its uniform particle size and premium blend of ingredients. These discs exceed other flap discs by packing 40% more abrasives on each flap as compared to the regular density flap discs.

Basically, these flap discs will out perform, out last, and Save You Money. In addition, all discs are manufactured on computer controlled machines and subject to numerous tests which ensure high quality and greater safety.

Product Specs

Quantity: 10
Shape: Type 29 Angle Face
Diameter: 4.5"
Grit: 40
Arbor Size: 7/8"
Density: High Density Jumbo
Material: Top Quality European Fabric
Back Plate: SIA Fiberglass Back Plate
Machine Used On: 4.5" Angle Grinders

Max Speed: 13,000 rpm
Safety: Safety glasses, gloves, ear protection

Wheels for grinding gas turbine blades - open structure creep feed grinding wheels.
Ideally suited for high efficiency production of gas turbine blades.
Blades and vanes can be found in their hundreds in just one turbine - in the compressor stage, the combustion stage, and the turbine stage. The blades are long and require special profiles which CGW's advanced technology grinding wheels are suited for.
CGW's high efficiency grinding of the blade of the "fir tree" root form on nickel alloy turbine blades maintains:
• Cool grinding
• Excellent form holding
• High output of blades per wheel

Wheels for grinding blades and vanes for the aerospace industry -
open structure, cool grind, creep feed grinding wheels.
These grinding wheels can be found in use at the world’s leading aircraft manufacturers. The wheels are designed with our special new bond for creep feed grinding applications, developed in house, and are able to achieve the delicate balance between self- sharpening and form holding.
• Excellent form holding
• Cool grinding, avoiding thermal damage
• Innovative vitrified technology

​PERFECT FOR: Grinding, polishing, rust removing etc.
Application: Stainless steel, aluminum, timber, and plastic ware etc.
HIGH QUALITY: Aluminum Oxide Flap Discs Resin fiber with fiberglass backing plate Phenolic resin backing offers durability and reinforcement

  • Model Number: 7'' flap disc manufacturer

  • Type: Abrasive Disc

  • Size: 4" to 9", 4", 4.5", 5", 7"

  • Grit Size: P40-120

  • Backing: Glass Fiber Backing

  • Calcined Alumina Flap:72pcs/80pcs/120pcs

  • Flap size: 17*22.5 mm

  • Max.PRM: 13000 for flap disc grit 60

  • Usage: Polishing&Grinding

  • MOQ: 10000

  • Material: aluminum oxide, carbon silicon, zirconia alumina

  • Certificate: MPA and ISO9001

FUNCTION

  • Ideal to use to grind and finish work surfaces

  • Designed for grinding, blending and finishing on a wide range of metal.

  • Perfect for finish work, deburring, and light grinding.

Quick Detail:

Zirconia Flap Disc Type 27 are Zirconia Flap Disc contains a fiberglass backing plate, and can be used on all types of material from metal to wood. Flat or beveled

Description:

The Flap Disc is a revolutionary hybrid coated abrasive product that combines the stock removal capabilities of a depressed center wheel with the surface finishing characteristics of a resin fiber disc. The result is an abrasive tool that can perform the functions of grinding and finishing simultaneously.

A series of flaps made of abrasive cloth are attached to a semi-rigid fiberglass backing in a fan-like arrangement. As the flaps gradually wear during use, there is a continual supply of "new" grains exposed from the under layers.

Flap discs both grind and finish in one step. Therefore, the traditional two steps process of using a grinding wheel and resin fiver discs is made obsolete. Always go one level coarser with a flap disc as opposed to a resin fiber disc. Zirconia Flap Discs are Zirconia Flap Disc Type 27. Self-sharping Zirconia gain heavy duty structure requires heavier pressure to break down the self-sharpening grains. It is ideal for heavy grinding on ferrous and non-ferrous metals and planning hardwoods. This abrasive can last up to 5 times longer than aluminum oxide on tough applications for heavy stock removal to finishing sanding.

Type 27: use for grinding flat surfaces. Most efficient when used at angle 0°~15°

Specifications:

MID: 3504-02
Type: Flap Discs Type 27
Size: 4 1/2" (115mm)
Bond: Resin over resin
Grain: Zirconia Alumina
Grit: P36~P120
Bore: 7/8" (22mm)

Applications:

Weld blending, Grinding, Deburring, Surface finishing and blending, Edge Chamfering, Stock Removal; High-alloy, stainless, and heat-treated steel; high-tensile, non-ferrous metals

Competitive Advantage:

  • Grinding and finishing of welds
  • Deburring, rust removal and snagging
  • Suitable for most ferrous & non-ferrous materials
  • Excellent for surface finishing
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Performance Level:High Performance

Abrasive Type:Coated

Coated Abrasive Flap Disc Diameter:4-9 Inch

Material Density:Standard

Disc Type (Shape):Type 27 Coated Abrasive Flap Disc

Disc Code:T27

Disc Description:Flat

Disc Backing:Phenolic Fiberglass Backing Plate with 10+1 layer

Grit:60 Grit, also can supply Grit 40#, Grit 120# , Grit 240#,Grit 320#

Configuration:A 60

Grade:common

grinding flap action and smooth running wheels.

The amount of removed metal is reduced,

reducing the heat generated.

Ideal for professional use

Size: 4inch, 4.5inch, 5inch, 7inch.

Grit: P40, P60, P80, P100, P120.

Material: Calcined Aluminum Oxide.

Certificates: ISO9001, MPA.

Blades Quantity: 72pcs, 80pcs, 120pcs.

Sandpaper: Use The Kingcattle Sandpaper.

Package

20pcs/shrink inside box, 200pcs/carton box

  1. More Durable

  2. we use more cloth material and best quality raw cloth material to ensure the using life time .

  3. Higher strength

  4. We use our own tope quality platinum fiberglass backing plate with 10+1 layer to manufacture this Aluminum Oxide abrasive flap disc.

  5. so that it can reach higher speed to meet customers'need.

  6. meanwhile we use double-layer coating technology to ensure the strength of the product.

  7. Lowest price

  8. coated abrasive flap discs are constructed with cloth coated-abrasive material.

  9. cut into squares and glued onto a backing plate.

  10. The main parts of coated abrasive flap disc is the abrasive cloth and backing plate.

  11. the cost price of flap disc depend on these two items.

  12. We have our own fiber glass backing plate production line to meet our flap disc manufacture.

  13. reduce our flap disc cost during the manufacture process.

Flap discs and wheels are suitable for:


- Grinding and finishing of welds
- Deburring, rust removal and snagging
- Suitable for most ferrous & non-ferrous materials
- Excellent for surface finishing


CGW Flap Disc specifications and applications:

Flap discs A/O

Aluminum oxide coated, for alloy steel and low-alloy steel

Flap discs Z/A

Zirconia Alumina coated, for high-alloy, stainless, and heat-treated steel; high-tensile, non-ferrous metals

Flap discs S/CSilicon Carbide coated, for marble, stone, glass, and non-ferrous metals

CGW Flap Discs are available in the following sizes:

100mm X 16mm (4" x 5/8")
115mm X 22mm (4-1/2" x 7/8")
125mm X 22mm (5" x 7/8")
150mm X 22mm (6" x 7/8")
180mm X 22mm (7" x 7/8")

Common Tools in Welding Applications

Three common tool categories are used for surface preparation and cleaning in welding applications:

  1. Bonded abrasives/grinding wheels
  2. Coated abrasives/flap discs
  3. Wire brushes and wheels

What you should choose depends on the requirements of the application and, of course, your personal preference.

Abrasive products and wire brushes differ in their performance and purpose. Abrasive products are designed to remove base material, whereas wire brushes are not. When surface preparation or weld cleaning requires that you remove slag or mill scale, a wire brush is generally recommended. Note, heavy mill scale sometimes can be too much for even the most aggressive wire brush. In these instances, choose an abrasive product. Abrasive products are specifically designed for applications such as stock removal, edge beveling, chamfering, and weld grinding and blending. Conversely, if an application requires that you preserve the base material during surface preparation and weld cleaning, a wire brush is still your best choice. Here’s how these products work.

Bonded Abrasives/Grinding Wheels. A combination of the grain type, grain size, and bonding agents (resins and additive fillers) determines the performance of each. Bonded abrasives are generally more aggressive and remove material faster, requiring a skilled operator who knows how to prevent damage, gouging, and undercutting. Wheels are constructed of abrasive grains, including aluminum oxide, silicon carbide, zirconia alumina, ceramic alumina, and combinations of these grains. A resinoid (organic) bonding agent is mixed with the abrasive grains. Finally, this mix is molded and combined with fiberglass reinforcement layers for durability and strength.

Aluminum oxide (AO) wheels are the most popular and are good for many general-purpose applications. Products made with a combination of ceramic and zirconia alumina cost more, but typically provide a better overall life and material removal. They are a good choice for materials such as armored steel, structural steel, cast iron, and INCONEL® alloys.

Coated Abrasives/Flap Discs. These items are constructed using the same grain types as those found in bonded abrasives. Coated abrasives bond the abrasive grains to a backing cloth, which is most commonly cotton, polyester, or blended backing rather than the hard grinding wheel found on bonded abrasives. This abrasive cloth can be cut into smaller flaps and layered radially to form a flap disc. It is this layered construction that gives flap discs a much softer, more forgiving feel.

The flaps are designed and positioned to wear away as the grains deplete, exposing new, fresh, and sharp grain underneath. Flap discs are often more comfortable to use and offer the aggressive cutting and grinding action of a grinding wheel; however, they also allow for blending and finishing work, which is important when the material needs to be painted, primed, or powder-coated.

Wire Brushes and Wheels. These are the primary choice for weld cleaning, when it is necessary to remove spatter and other contaminants prior to finish or the next weld pass. Remember, the tips of wire brushes do the work, functioning like tiny hammers hitting and preparing the work surface. Applying the appropriate pressure is critical to power brush performance, as excessive pressure flexes and bends the wires, preventing the tips from working. This can lead to premature wire breakage and dramatically reduce brush life.

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Quality PVA Grinding Wheel/Elastic Flap Disc Grit: 60-400# Cleaning,Deburring,Finishing,Grinding,polishing,Surface preparation for sale
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