Products | Tedok

Graphites are supplied in blocks, slabs, custom blanks, prisms and logs.

The selection of a suitable graphite class for the production of the electrode with the recommendation of the operating parameters of the machine guarantees the optimal use of graphite and the best work results. Our application specialists are ready to provide relevant information.

Graphites are classified according to grain size. However, grain size is far from the only criterion for graphite quality.

For more than 50 years, Entegris' POCO materials have set the standard for various industries. With our technological expertise, proven product performance and superior technical support, we provide a graphite solution to help you save money and be more productive.

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EDM-AF5

The finest material for graphite

electrodes, which ison the market

today available. Averageparticle size

less than 1μ gives this classadvanced

properties that exceed the properties of graphites with larger particle sizes. It excels in strength and resistance

to damage.

Average particle size (in microns): < 1

Bending strength 1200 kg/cm2

Compressive strength 1900 kg/cm2

Hardness (shore): 87

Resistivity (µΩm): 17

Achievable surface: 6 - 16

EDM-3

Isotropic graphite with ultra fine grain,

high strength and exceptional wear

resistance including edge. Easy to mill

and cut on a wire. Especially suitable

for digging deep ribs. It enables high quality of the final surface.

Average particle size (in microns): < 5

Bending strength: 950 kg/cm2

Compressive strength : 1500 kg/cm2

Hardness (shore): 76

Specific electricity resistance: 14 µΩm

Achievable surface: 16 - 20

EDM-C3

Highly dense graphite carbonated

with copper. Suitable for machining

high alloys copper content. Easy to mill

and cuts on a wire. Meets the highest

demands for high metal removal rate. It enables the reduction of the number of electrodes with a high quality of the cavity surface.

Average particle size (in microns): < 5

Flexural strength: 1427 kg/cm2

Compressive strength: 1993 kg/cm2

Hardness (shore): 66

Specific electricity resistance: 21.6 µΩm

Achievable surface: 12 - 20

EDM-1

Isotropic graphite with ultra fine grain.

Wear resistant, offers high machining

speeds and fine cavity surface

treatment. Applying especially when

eroding ribs, including thin. It is easily and well milled

and cut with wire.

Average particle size (in microns): < 5

Bending strength: 530 kg/cm2

Compressive strength: 1050 kg/cm2

Hardness (shore): 69

Specific elec. resistance 19.3 µΩm
Achievable surface: 18 - 22

EDM-200

Isotropic super very fine graphite

with good strength, resistance to

wear and tear and the possibility

of fine surface treatment. Applies

to simple and complex machining

shapes. It mills very well and is gentle on tools.

It has an excellent price / performance ratio.

Average particle size (in microns): < 10

Bending strength: 635 kg/cm2

Compressive strength: 1075 kg/cm2

Hardness (shore): 68

Specific elec. resistance: 14.7 µΩm

Achievable surface: 22 - 26

EDM-C200

Isotropic super very fine graphite

with good strength, resistance

to wear and tear and the possibility

of fine surface treatment. It applies

during simple and more complex

machining shapes. It mills very well and is gentle on tools. Excellent price/performance ratio.

Average particle size (in microns): <10

Bending strength: 851 kg/cm2

Compressive strength: 1631 kg/cm2

Hardness (shore): 68

Specific elec. resistance: 2.9 µΩm
Achievable surface: 18 - 22

As a global specialist in materials and equipment for extreme environmental conditions and in the safety and reliability of electrical equipment, Mersen develops innovative solutions that are optimally adapted to customer requirements.

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ELLOR® +25

An isotropic universal material which
allows for good metal removal rates,
so it has good wear characteristics
including the ability to achieve a very good finish.

It is produced in standard blocks
308mm x 620mm x 1830mm

Grain size (um): 9

Bending strength: 560 kg/cm2

Compressive strength: 1213 kg/cm2

Hardness (shore): 65

Electrical resistivity (µohm.cm): 1220

Achievable surface VDI: 24 - 30

ELLOR® +40

Isotropic graphite, which is characterized by a very fine grain and high strength. EDM material that allows good metal removal rates with excellent electrode wear values.

It is produced in standard blocks

300 x 600 x 950 mm

Grain size (um): 7

Bending strength 612 kg/cm2

Compressive strength 1265 kg/cm2

Hardness (shore): 60

Electrical resistivity (µohm.cm): 1270

Achievable VDI surface: 21 – 27

ELLOR® 20C

Graphite impregnated with copper with very good electrical conductivity. Popular with EDM operators for applications that require the highest metal removal rates and low wear.

Average grain size (um): 11

Bending strength 816 kg/cm2

Compressive strength 2039 kg/cm2

Hardness (shore): 70

Electrical resistivity (µohm.cm): 227

Max. block size 165 x 200 x 308 mm

For other size please contact us here.