Coolant filtration systems

Coolant filtration systems

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Coolant filtration systems

Recycling, filtration and temperature controlled

We build efficient coolant filtration systems for processing, filtering, pumping and temperature controlling coolants and cutting fluids. Our coolant filtration systems can be utilized in the machining of glass, ceramics and metals. They are suitable for grinding, generating, sawing and milling machines and serve as a substitute for centrifuges. The integrated water-water-chiller can be connected with the central cooling system or external cooling unit.

The combination of sedimentation and 2-phase ultra-fine filtration enables a 3-phase filtration process. dopa coolant filtration systems are further equipped with:

  • Quick couplings on all electrical connections and media lines
  • Non-contact level monitoring with alarm function (acoustic & optical)
  • Acoustic and visual alarm in case of pump errors (e.g. mechanical blockage)

Various further options are available upon request. We build coolant filtration systems according to your needs. Please contact us to discuss your specifications.

Benefits of dopa coolant filtration systems

  • Cost effective alternative to centrifuges
  • Compact design
  • 3-phase filtration secures that particles ≥1µm are filtered out
  • Ultra-fine filtration allows usage in the production of high-end surfaces
  • Removable pump units enable very easy cleaning of the entire system
  • Significant minimization of noise and vibration in the working area

Please see the data sheet – dopa coolant filtration systems to access the detailed machine description. (PDF).

Contact us with your requirements for your customized quote! We are always happy to assist you with our expertise in customization.

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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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Single-sided Machines

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Grinding Wheels

Grinding Wheels

Grinding & Polishing Pellets

Grinding & Polishing Pellets

Chamfering Tools

Chamfering Tools

Grinding Wheels

Grinding Wheels

Home » Products » Diamond Tools »

Grinding Wheels

Grinding Wheels

We develop and produce grinding wheels for all machine types and sizes – for single- as well as double-sided machines. Depending on your very needs, we will create the best grinding wheel to produce your components.

We gladly consult you:

  • At processing very sensible materials such as calcium fluoride or germanium
  • At grinding and polishing very hard materials such as sapphire, silicon carbide or spinell
  • When it comes to producing very thin substrates
  • At high requirements on flatness, parallelism, roughness or other specifications, that are important to you
  • Already during feasibility studies or prototyping phase to create viable solutions

Segmented

Segmented grinding wheels are used for grinding very thin parts or a high density of components. The segmentation of the grinding wheel is above all to avoid tilting of the processed parts and to improve the edge sharpness.

The gap between the segments can be chosen flexibly and is usually determined by the size of the smallest components that need to be processed.

Pelleted

Pelleted grinding wheels are used where high removal rates combined with relatively low pressure are required.

These grinding wheels ensure a good removal of chipping and therefore avoid that clogging of the tools.

Grit size and pattern are completely flexible. We produce grinding wheels customized exactly to your production needs.

Fully Covered / Smoothed

Fully covered grinding wheels are typically used when many small items need to be processed at the same time. In the micro optics or watches industry, for example, several hundred components are ground simultaneously.

The full coverage ensures that all components are processed evenly on the grinding wheel. It avoids clipping or tilting of parts during the transition from one grinding segment to the next.

Subsequently, the edge quality of the components is improved and the risk of damage minimized, while the surface finish is significantly increased.

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!

Grinding & Polishing Pellets

Grinding & Polishing Pellets

Home » Products » Diamond Tools »

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!

Radius Milling & Generating Tools

Radius Milling & Generating Tools

Home » Products » Diamond Tools »

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.