Polishing Wheels

Polishing Wheels

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Polishing Wheels

Polishing Wheels

We produce polishing wheels for single- and double-sided machines as well as CNC tools, which can be customized to your machine and application requirements.

Our polishing wheels perform at polishing a number of different materials. Here is a collection of some of them:

  • Metals – e.g. tungsten, molybdenum, nickel silver, stainless steel, ferrites or different alloys
  • Ceramics – e.g. Spinel, Al2O3, silicon carbide, SiSiC, silicon nitride, ALON®, aluminum nitride
  • Crystals – e.g. sapphire, calcium fluoride, germanium, silicon carbide, silicon, YAG
  • Different optical and industrial glass types
  • Material or workpiece combinations of the above mentions such as sapphire in stainless steel

All our tools are ground in with high precision and customized according to your needs.
Please contact us to discuss your specification.

Benefits of dopa polishing wheels:

  • High removal rates
  • Homogeneous, scratch-free surfaces
  • Transparent, interferometrically measurable surfaces
  • Polishing of material combinations without grit boundary effects as e.g. orange peel
  • Very low sub surface damage
  • Cutting-edge technology that is continuously optimized
  • Low edge roll enables tight form errors up to the edge of the processed parts
  • Easy to dress and condition
Olga Stark

Olga Stark

Internal Sales for Tools, Machines & Consumables

+49 (0)30 58 58 428 32
olga.stark@dopa-diatools.com

 
Jürgen Waidhas

Jürgen Waidhas

Head of Sales, Europe & U.S. – Tools and Machines

Patrick Tresch

Patrick Tresch

ASM for Tools & Machines

(CH, FR, IT, AT, DE-7+8)
+41 (0)79 570 71 37
Mario Patraschkov

Mario Patraschkov

Co-Owner | Head of BU (Machines & CNC)

+49 (0)30 58 58 42 831
mario@dopa-diatools.com

Please contact us for further information.
We would be pleased to assist you with our expertise in selecting and customizing the tools to your needs!

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Dressing & Conditioning Tools

Dressing & Conditioning Tools

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Dressing & Conditioning Tools

Dressing & Conditioning Tools

For all our grinding tools as well as our polishing pads and tools, we supply customized dressing and conditioning tools.

Please contact us for your non-committal consultation.

Benefits of dressing tools for grinding tools: 

  • Very precise
  • Long life time
  • Easy to use
  • Clean process
  • Very quick dressing – and conditioning operations (cycles are usually less than a minute)

Benefits of PU pad dressing & conditioning tools:

  • Extremely long life time
  • No scratches from abrasive diamonds or break-offs
  • Clean process
  • Very quick and efficient conditioning and dressing
Olga Stark

Olga Stark

Internal Sales for Tools, Machines & Consumables

+49 (0)30 58 58 428 32
olga.stark@dopa-diatools.com

 
Jürgen Waidhas

Jürgen Waidhas

Head of Sales, Europe & U.S. – Tools and Machines

Patrick Tresch

Patrick Tresch

ASM for Tools & Machines

(CH, FR, IT, AT, DE-7+8)
+41 (0)79 570 71 37
Mario Patraschkov

Mario Patraschkov

Co-Owner | Head of BU (Machines & CNC)

+49 (0)30 58 58 42 831
mario@dopa-diatools.com

Please contact us for further information.
We would be pleased to assist you with our expertise in selecting and customizing the tools to your needs!

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Grinding & Polishing Pellets

Grinding & Polishing Pellets

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Grinding & Polishing Pellets

Grinding & Polishing Pellets

We produce diamond pellets in various dimensions, grit sizes and chemical-mechanical properties. They are used as a single pellet tool or combined as a multi pellets on radius- or plano grinding wheels.

We have specialized on resin and hybrid bonded tools. Those two bond types give us the highest degree of freedom in directing the chemical, mechanical and physical tool properties.

The hybrid bond combines the benefits of metal bonded tools (cutting performance, endurance and good cooling properties) and resin bonded tooling (homogeneous scratch-free surfaces, very low sub surface damage, optically measurable after grinding, reduced polishing times).

Whatever bond type you choose – all dopa tools are characterized by their ability to achieve very high surface cleanliness as well as high dimensional accuracies. Therefore, they are widely used in precision optics, semiconductor, medical or space applications.

Our polishing pellets substitute polishing compounds such as polyurethane pads, pitch or composite materials. They consistently hold their shape and enable you hereby producing very precise workpieces.

We always have large amount of our standard pellets on stock and can dispatch your order very quickly.

Benefits of Diamond Pellets

  • Excellent cutting performance, endurance and high heat delivery from cutting zone
  • Homogeneous scratch-free surfaces
  • Optically measurable after grinding
  • Reduced polishing times
  • Long life-time
  • Their ability to achieve polished surfaces
  • High dimensional accuracy
  • Very clean process
  • High process repeatability
  • Low sub surface damage
Olga Stark

Olga Stark

Internal Sales for Tools, Machines & Consumables

+49 (0)30 58 58 428 32
olga.stark@dopa-diatools.com

 
Jürgen Waidhas

Jürgen Waidhas

Head of Sales, Europe & U.S. – Tools and Machines

Patrick Tresch

Patrick Tresch

ASM for Tools & Machines

(CH, FR, IT, AT, DE-7+8)
+41 (0)79 570 71 37
Mario Patraschkov

Mario Patraschkov

Co-Owner | Head of BU (Machines & CNC)

+49 (0)30 58 58 42 831
mario@dopa-diatools.com

Please contact us for further information.
We would be pleased to assist you with our expertise in selecting and customizing the tools to your needs!

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Chamfering Tools

Chamfering Tools

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Chamfering Tools

Chamfering Tools

Whether you are looking to process angular or round components, we have the right tooling and solution for you. We offer grinding and polishing solutions for angular, round and free-form workpieces. We produce radius and plano grinding wheels in almost all sizes and grits and of course customized tooling. We cover solutions for manual chamfering as well as tools for CNC machines.

Olga Stark

Olga Stark

Internal Sales for Tools, Machines & Consumables

+49 (0)30 58 58 428 32
olga.stark@dopa-diatools.com

 
Jürgen Waidhas

Jürgen Waidhas

Head of Sales, Europe & U.S. – Tools and Machines

Patrick Tresch

Patrick Tresch

ASM for Tools & Machines

(CH, FR, IT, AT, DE-7+8)
+41 (0)79 570 71 37
Mario Patraschkov

Mario Patraschkov

Co-Owner | Head of BU (Machines & CNC)

+49 (0)30 58 58 42 831
mario@dopa-diatools.com

Please contact us for further information.
We would be pleased to assist you with our expertise in selecting and customizing the tools to your needs!

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Radius Milling & Generating Tools

Radius Milling & Generating Tools

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Radius Milling & Generating Tools

Diamond grinding tools for spherical processing of optical components

We have developed a special hybrid bond for radius grinding tools and tools used in spherical processing. This bond combines the benefits of metal-bonded tools — cutting performance, endurance and high heat dissipation from the cutting zone — with the benefits of resin-bonded tools: homogeneous, scratch-free surfaces, optically measurable surfaces after grinding and minimal polishing times.

Benefits of dopa Radius Milling & Generating Tools

Short delivery time: Standard tools are delivered within 2 weeks.

Sharp workpiece edges: clean edges with minimal chipping.

Excellent cutting performance: high, controlled material removal with stable process forces.

Scratch-free surfaces: homogeneous surfaces with low subsurface damage in hard and brittle materials.

Long tool life: extended tool life with consistent performance and dimensional accuracy.

Shorter polishing times: less rework thanks to defined grinding surfaces and low subsurface damage after grinding.

We manufacture radius milling tools in diamond grit sizes from D7 to D300, bonded in different carrier materials and available in various standard dimensions. Tool interfaces are available with standardized hydraulic taper shanks HD3/HD6/HD12/HD25 or as customer-specific interfaces.

The clamping shaft is made of stainless steel. HD12 and HD25 are equipped with an internal bore and sealing rings for central coolant supply.

We will be happy to advise you on technology and custom dimensions.

Shaft Ø in mm · Lip · RF lip pitch circle · Front view · Side view · Section view · Inner ring · Outer ring

Standard sizes for generator tools

RF
Ø in mm
Outer
ring
Ø in mm
Inner
ring
Ø in mm
Lips
in mm
2311
3421
4531
5641
6,5851,5
7861
81062
101282
1214102
13,751611,52,25
1517,512,52,5
17,520152,5
2022,517,52,5
RF
Ø in mm
Outer
ring
Ø in mm
Inner
ring
Ø in mm
Lips
in mm
22,525202,5
2528223
3033273
3538323
4043373
5054464
5660524
7074664
8084764
95100905
1151201105
1351401305
1451501405
Olga Stark

Olga Stark

Internal Sales for Tools, Machines & Consumables

+49 (0)30 58 58 428 32
olga.stark@dopa-diatools.com

 
Patrick Tresch

Patrick Tresch

ASM for Tools & Machines

(CH, FR, IT, AT, DE-7+8)
+41 (0)79 570 71 37
Jürgen Waidhas

Jürgen Waidhas

Head of Sales, Europe & U.S. – Tools and Machines

Mario Patraschkov

Mario Patraschkov

Co-Owner | Head of BU (Machines & CNC)

+49 (0)30 58 58 42 831
mario@dopa-diatools.com

Please do not hesitate to contact us. We would gladly support you with our expertise and customize the machines to your needs.

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