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.
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
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.
