3M Grinding Wheels

3M/General Industrial Diamond

is dedicated to the design and manufacture of superior performance superabrasive (diamond and CBN) products which

enhance the productivity and competitive capabilities of its customers. They have been the leader in superabrasive technology for over 60 years.

Wheel Products

Gendi Wheels Double super Diamonds (Foulks truing tools) Prostock wheels Diamond Dressing Tools Techinical

Rapp Industrial stocks many commonly used grinding wheels for our customers

Resin Bond Diamond & CBN Wheels

Custom Design-Over 80% of our products are designed specifically for our customers' applications and to reduce our customers' costs of operation.

Bond Systems-Our engineering and research teams utilize the latest advanced resins and other materials to constantly improve performance.

Diamond & CBN-3M/General utilizes the most efficient types of diamond and CBN abrasives available plus all of the latest coatings to achieve maximum possible performance.

Materials-Our resin bond diamond and CBN wheels grind carbides, ceramics of all types, cemets, tool and alloy steels, ferrites, glass quartz, PCD, PCBN and other exotic materials.

Sizes & Types-Wheels smaller than 1/8 and up to 30", from the simplest 1A1 type wheel to the most complex shape wheel, 3M/General has the capability and the range of tooling to meet the customers needs.

Quality-Strict material and production controls, conforming to ISO standards, insure quality of the first wheel and repeatability of all future orders.

Applications-CNC Tool Grinding, Centerless Grinding, O.D./I.D. Grinding, Insert Grinding, Surface Grinding.

Prostock, CNC Stock and Gendie-Commonly used wheels that are in stock at all times.

To improve your grinding efficiency and reduce your costs, fill out our on line engineering report. Either fax your report to 724-789-7288 or email it back so that we can provide you with the best specification and a price quote.

Vitrified Bond Diamond & CBN Wheels 3M/General Industrial Diamond has designed and manufactured products toreplace conventional abrasive wheels, as well as to improve upon currently used vitrified bond diamond and CBN wheels.

Vitrified Diamond Features-Special carbide grinding applications, Special ceramic grinding applications, Grinding of PCDN products.

Vitrified CBN-Grinding of hardened tool steels, bearing steels, high temperature steels and super alloys. Vitrified products feature controlled porosity and bond structures that maximize retention of diamond/CBN particles and provide the required stock removal rates and form retention. In addition, advanced core materials and CBN types and coatings enable 3MGeneral to provide wheels for conventional speed or high speed grinding.

Metal Bond Diamond & CBN Wheels

Metal bond products are produced utilizing the latest induction and furnace heating techniques. Diamond & CBN wheels, blades, buttons, pellets, and drills grind and cut carbides, glass, quartz, ceramics and concrete. These products provide excellent for retention as well as abrasion and heat resistance when grinding tough materials.

Plated & Brazed Single-Layer Products

3M/General Industrial Diamond manufactures plated and brazed single-layer products utilizing diamond or CBN. Our CNC machining capabilities enable us to provide rapid service. State of the art plating and bonding facilities ensure accurate shaped and superior abrasive retention. Customers utilize these tools and wheels for grinding and slicing materials when complex

forms and free cutting action are required.

Services

Express Delivery Service

Express Delivery is designed to assist customers who are in urgent need of a product. This service assures shipment in half the time required for the product involved. The charge for this service is 15% of the selling price for products priced above $250.00, and 20% premium for those priced below.

Test Ordering a Wheel

*You may use ten percent of the abrasive depth of a wheel product without cost to you. *Should you decide to continue using the product beyond this point, we will ask for payment for part or all of it based upon its performance versus you standard.

Call us for full details.

Gendie

The most complete line of low cost Diamond grinding wheels for dry grinding of carbide dies, featuring special low expansive abrasive cores. In stock for immediate shipment.

ShapeDimensionsSpecificationConcentrationDepth of DiamondItem #Price

1A15 x1/2 x 1-1/4Gendie 1001001/420397-1$189.52

1A15 x1/4 x 1-1/4Gendie 1001001/420398$147.29

1A15 x1/4 x 1-1/4Gendie 1801001/420400-1$147.29

1A15 x1/4 x 1-1/4Gendie 3201001/420401$147.30

1A14 x 1/8 x 1-1/4 Gendie 2201001/431139$109.25

1A14 x 1/4 x 1-1/4Gendie 1001001/420399$130.59

1A14 x 1/4 x 1-1/4Gendie 2201001/420402$130.90

1A14 x 1/4 x 1-1/4Gendie 3201001/420403$130.90

1A14 x 3/8 x 1-1/4Gendie 1001001/431140$138.00

1A14 x 1/2 x 1-1/4Gendie 1001001/431141$158.00

Diamond Dressing Products

3M/General Industrial Diamond designs and manufactures a complete line of natural and synthetic diamond tools, rolls, and discs. These products are designed to true and dress all types and specifications of bonded abrasive and superabrasive wheels.

Single-Point Dressers, Form Dressers, Cluster and Blade Tools-We offer seven different qualities of natural diamonds alone, and are capable of producing all standard and special designs.

Impregranted, Grit, and Particle Dressers-We can produce all shapes and sizes in different bond hardnesses, diamond concentrations, and diamond grain sizes for trueing both conventional abrasive and CBN wheels.

Below are some commonly used diamond tools.

1. 703 x multi layer cluster

2. Landis and cincinnati, large 1/16" tail

3. Straight tool

4. Tool for turning fixture

5. BDD impregnated tool, straight

6. Hexagonal head

7. 3-stone cluster

8. 7-stone cluster

9. Tool with fins and coolant passages

10. Heald

11. Multiple point spur tool

12. Chisel

13. Turning tool

14. Cone point

15. Reishaur gear grinder tool

16. Landis small 1/4" tail

17. Scribing tool

18. NX-J & L-tool

19. J & L

20. Moore

21. Diaform

22. EX-CELL-O

23. Reduced head tool

24. Bryant

25. Phonopoints

26. Internal radius dresser (RAT-TAIL)

To get a quote call us or fill out our engineering quote.

Steps to Order Diamond Tools:

1. Specify the diamond carat weight required.

2. Specify the diamond quality

Blue dot - Extra select grade-specially selected octahedron or dodecahedron

diamonds of the finest quality, exhibiting sound internal structures and superb

external shape which permits four to five resettings. These are the finest

natural diamond wheel dressers available. These are the finest natural

diamond wheel dressers available.

White dot - Standard fine grade-Selected octahedron of dodecahedron

diamonds of the fine quality. Internal structure is very sound, and shape is

particularly good, allowing an average of three resettings. Although this is our

"second" quality, it is superior to many manufactures' "first qualities.

Green dot - Commercial grade-sound industrial diamonds with good external

shape suitable for two resettings with proper use.

Red dot - General purpose grade-a medium grade industrial diamond

exhibiting reasonably sound internal structure, and capable of being reset

one time when properly used.

Throwaway - Single use grade-a quality of diamond for a single use when

initial cost is the most important consideration, or where tools are generally

treated roughly by semi-skilled labor.

Pisces - Single use grade-a single use quality of even lower cost than

throwaway, yet capable of consistent, successful wheel dressing.

VLP - Single use grade-lowest cost diamonds, round shape, suitable for

non-critical operations where a defined point is not needed.

3. Specify any special shape or type of diamond (chiselpoint, conical point, etc.)

4. Give a full description of the diamond tool shank:

a. For tools with a single diameter, specify both diameter and total length.

b. For tools with an enlarged or reduced head, specify the diameters and

lengths of both the head and tail sections.

c. Specify any milled flats, special steel "nose" angles, threaded areas, tapped

holes, etc. Drawings are usually preferred for such tools. The make and model

of machine frequently is all we need.

5. If the tools is to be used to form convex (male) radii on a grinding wheel, as opposed to

simply a straight dress, please tell us. Radius dressing requires us to perform an

additional machining operation to locate the diamond point concentrically with the tool

diameter, so that a properly formed wheel radius results.

Prostock Diamond & CBN Wheels

Note: These wheels are available in other metric and inch bore sizes. Please note the required bore size on your order. Allow 1 extra day for

CNC Stock Wheels

A complete range of high performance wheels for all popular CNC machines. Fluting, gashing and end grinding wheels are available.

Please contact us for pricing.

1A1

Shape

Dimensions

Specification

Item#

1A1

1A1R

Shape

Dimensions

Specification

Item#

4 x 1/16 x 1-1/4

4 x 1/8 x 1-1/4

4 x 1/4 x 1-1/4

5 x 1/8x 1-1/4

6x 1/4 x 1-1/4

6 x 1/4 x 1-1/4

6 x 1/2 x 1-1/4

7 x 1/4 x 1-1/4

7 x 1/2 x 1-1/4

10 x 1/2 x 3

12 x 1/2 x 3

12x 1 x 3

14 x 1 x 5

4 x 1/2 x 1-1/4

6 x .035 x 1-1/4

8 x .045 x 1-1/4

GD150 R100 PS 1/4

CGD150 R75 PS 1/4

GD150 R100 PS 1/4

CGD150 R75 PS 1/8

CGD150 R75 PS 1/4

GD150 R100 PS 1/4

CGD150 R75 PS 1/8

CGD150 R75 PS 1/4

CGD120 R75 PS 1/8

GD150 R100 PS 1/4

CGD120 R75 PS 1/8

GD150 R75 PS 1/4

CGD120 R75 PS 1/8

CGD120 R75 PS 1/4

GD120 R100 PS 1/4

GD220 R100 PS 1/4

CGD 120 R100 PS 1/4

GD120 R100 PS 1/4

PS100

PS105

PS125

PS130

PS145

PS150

PS155

PS160

PS165

PS170

PS175

PS180

PS185

PS190

PS200

PS205

PS210

PS215

PS220

PS225

PS230

PS235

PS240

6A2C

Shape

Dimensions

Specification

Item#

6A2C

11V9

6 X 3/4 X 1-1/4

RIM - 3/4

6 X 3/4 X 1-1/4

RIM - 3/4

3-3/4 X 1-1/2 X 1-1/4

5 X 1-1/2 X 1-1/4

CGD120 R75 PS1/8

CGD240 R50 PS1/8

GD100 R100 PS 1/8

GD150 R100 PS 1/16

GD150 R100 PS 1/8

GD100 R75 PS 1/8

CGD150 R75 PS 1/16

CGD150 R75 PS 1/8

CGD100 R75 PS 1/8

CGD150 R75 PS 1/16

PS245

PS250

PS310

PS315

PS320

PS330

PS335

PS340

PS345

PS350

PS360

11V9

Shape

Dimensions

Specification

Item#

3-3/4 X 1-1/2 X 1-1/4

5 X 1-1/2 X 1-1/4

1A1

PS365

PS370

PS375

PS350

PS5

CGD150 R75 PS 1/8

MM1

MM2

Shape

Dia Section

Specification

Item#

3/8 x 1

120 GRIT 100 CONC

220 GRIT 100 CONC

400 GRIT 100 CONC

120 /220 GRIT 100 CONC

220/400 GRIT 100 CONC

PS270

PS275

PS280

PS285

PS290

Straight Wheels

Cut Off Wheels

CUP Wheels

CBN Wheels

Hand Hones

11V9

Tech Tips

When should I use an uncoated abrasive?

Uncoated abrasives are used for dry or wet grinding of cemented carbides and steel/carbide combinations.

Why coat a particle?

Copper coating (designated for dry grinding) improves crystal retention and promotes heat dissipation. Nickel coating (for wet grinding) also enhances crystal retention in the bond and reinforces the crystal to control fracturing.

What is CBN?

CBN was developed for the grinding and finishing of tool, die and other hardened steels. It is not effective on tungsten carbide, non-ferrous metals and other non-metallic materials.

How do I create a microfinish?

To obtain fine microfinishes a lapping operation may be required. Our diamond compounds and specially processed micron size diamond powders are ideal for these operations. Compound is usually applied by hand, leather, felt polishing wheels, or machines specially designed for lapping.

When should I use metal, resin or vitrified bonds?

Metal - glass, ceramics, very high form retention

Vitrified - carbides, pcd, ceramins, hardened steel

Resin - Carbides, ceramics, hardened steel

Why should I use a higher concentration?

Higher concentrations, 100 of 125, work well for corner and form retention. Higher concentrations usually are the most cost effective overall, except for CBN.

When can I use a low concentration?

Lower concentrations (75 or less) are used in larger wheels with large contact area, finer grit wheels, matel bonds for non-metallics and face wheels in many cases.

What grit size should I use?

80, 100, 120 - Roughing and rapid stock removal

140, 150, 180 - Medium finishes, standard carbide tools and milling cutters

220,240, 320 - Finer finishes, keener cutting edges

400 & finer - Microfinishes, little stock removal

Note: To obtain fine microfinishes a lapping operation may be required.

How do grit sizes correlate with finishes?

This chart show the finish which can be expected from various grit sizes.

Grit size

Expected finish

FEPH Equivalent

(micro inches

(mesh size)

54-66

D851

44-45

D601

36-44

D426

30-36

D301

24-30

D252

100

18-24

D181

120

16-18

D151

150

14-16

D107

180

12-14

D91

220

10-12

D76

240

8-10

D64

320

D54

400

7-8

D46

500

D40

600 (20-40 micron)

6-7

D30

800 (20-30 micron)

D25

1200 (10-20 micron)

5-6

D15

1800 (6-12 micron)

3-5

3000 (4-8 micron)

2-4

8000 (1-5 micron)

14000 (0-2 micron)

Note: Use this chart as a guide only. Machine type and condition, and type of material, can have an effect on the finish.

Should I prep my machine for the use of a diamond wheel?

Yes, Flanges should be precision ground and balanced since they will actually become part of the wheel. Flanges, back plates, arbors and spindles should be absolutely clean, free of burrs and run true.

How do I mount the wheel?

Prep the machine like stated in previous question. Hand-tighten the wheel initially. By using an indicator and tapping lightly with a plastic hammer, indicate the wheel until it is at least .001" of true rotation. Tighten flanges securely and recheck with an indicator before using. The use of one permanent mounting for the life of the wheel should be practiced whenever possible.

What influence does coolant have on the operation?

Bet results are obtained with an abundant flow of coolant, providing (a) cooling, (b) lubrication, (c) cleaning of the work-piece.

What is the best coolant when using CBN?

Oil coolant has proven to be most effective when grinding with CBN.

Is there any type of coolant I shouldn't use?

When using resinoid bonded diamond wheels avoid strong alkaline coolant solutions as they may react with and weaken the resin itself.

What is the significance of a greater diamond or CBN depth?

The greater the diamond or CBN depth, the more cost effective the wheel. Each time depth is doubled, wheel life doubles at less than twice the individual cost of half-depth wheels.

What is the grinding, or "G" ratio?

A good measure of wheel life is the grinding ratio. This is calculated by dividing the cubic inches of material removed by the cubic inches of wear of the grinding wheel.

The "G" ratio decreases it the feed rate increases. The "G" ratio increases as wheel size increases.

The total cost to grind is the wheel cost as measured by "G" ratio and the time cycles required. Wheel cost and grinding time cost must be optimized together for the lowest cost.

Create new account

Log-in

Last Posts