Newyard Carbon are not only specialized manufacturing carbon brush materials such as electrographite, natural graphite, metal graphite and resin-bonded graphite but also the finished products for wind turbine, generator, industrial and traction motors and power tools as well.

Carbon Brush Materials - Electrographite, Metal Graphite, Nature Graphite and Resin-Bonded Graphite

Vorgestellte Serie

Carbon Brush Materials - Electrographite, Metal Graphite, Nature Graphite and Resin-Bonded Graphite

Kohlebürste Rohstoffe-Kupfer
Apprentice

Metal Graphite

This main raw material used for this class of brushes are electrolytic copper powder and graphite. According to the needs of users, powders of silver, lead and other metals may also be employed.
This class of brushes applicable to low voltage electrical machines with
heavy load and ordinary requirements of commutation. Generally, the peripheral speed should not exceed 30 m/s.

Heritage

This class of brushes consist of various kinds of carbon powders such as carbon black, coke, graphite and so on. They must undergo high
temperature treatment at about 2500℃ to make all kinds of carbonic material convert to a micro-rystalline form of artificial graphite. This class of brushes have excellent characteristic of commutating and self- lubricating, widely applied to all kinds of AC and DC motors with the advantage of long service life and less wear ability of the commutators.

Classical

Natural Graphite

The natural graphite is main raw material of this class of brushes. Here, pitch and resin are used binders.They are baked at about 1000℃. This class of brushes are provided with better lubricating and current- collecting performance. The natural graphite brushes are respectively used with the slip rings of small and medium size DC motor and high speed turbo-generators under steady applications.

Apprentice

Resin Bonded Graphite

This main raw material used for this
class of brushes are artificial graphite
powder. Pitch and resin are used
binders.
This class of brushes applicable to
power tools and home appliance.

Metal Graphite Grades

C412 METAL GRAPHITE

Metal Graphite - C412

Materialeigenschaften

Klasse: C412

Widerstand (Ohm/um): 0.2-0.25

Rockwell Hardness (HR10): 70-85

Voltage Drop (V): 0.5

Reibungskoeffizient: 0.2

Nennstromdichte: 20

max. Geschwindigkeit (m/s): 20

Pressure in Use (kPa): 20

Hauptanwendung: current collector

Metal Graphite - CG90

Metal Graphite - CG90

Materialeigenschaften

Klasse: CG90 – 90% Cu

Widerstand (Ohm/um): 0.06-0.08

Rockwell Hardness (HR10): 82-90

Voltage Drop (V): 0.4

Reibungskoeffizient: 0.25

Nennstromdichte: 20

max. Geschwindigkeit (m/s): 20

Pressure in Use (kPa): 20

Hauptanwendung:Low voltage AC Commutator machines with slip rings

metal graphite - cg82

Metal Graphite - CG82

Materialeigenschaften

Grades: CG82 – 82% Cu

Widerstand (Ohm/um): 0.09-0.1

Rockwell Hardness (HR10): 60-80

Voltage Drop (V): 0.3

Reibungskoeffizient: 0.2

Nennstromdichte: 20

max. Geschwindigkeit (m/s): 20

Pressure in Use (kPa): 20

Hauptanwendung:with low voltage and slip rings of AC commutator machines

Metal Graphite - CG72

Metal Graphite - CG72

Materialeigenschaften

Grades: CG72 – 72% Cu

Widerstand (Ohm/um): 0.6-0.7

Rockwell Hardness (HR10): 75-90

Voltage Drop (V): 1.1

Reibungskoeffizient:<0.2

Nennstromdichte: 15

max. Geschwindigkeit (m/s): 20

Pressure in Use (kPa): 17

Hauptanwendung:DC machines up to 40V,automobile starters and exciting slip rings of asynchronous machines

CG60 Metal Graphite

Metal Graphite - CG60

Materialeigenschaften

Grades: CG60 – 60% Cu

Widerstand (Ohm/um): 2-2.5

Rockwell Hardness (HR10): 80-90

Voltage Drop (V): 1.3

Reibungskoeffizient: 0.25

Nennstromdichte: 15

max. Geschwindigkeit (m/s): 35

Pressure in Use (kPa): 22

Hauptanwendung: automobile starters  and exciting slip rings  of synchronous machines

CG50 Metal Graphite

Metal Graphite - CG50

Materialeigenschaften

Grades: CG50 – 50% Cu

Widerstand (Ohm/um): 2.5-3.5

Rockwell Hardness (HR10): 70-80

Voltage Drop (V): 1.5

Reibungskoeffizient: 0.25

Nennstromdichte: 15

max. Geschwindigkeit (m/s): 25

Pressure in Use (kPa): 17

Hauptanwendung:DC genertators up to 60V and DC welding machine .etc

CG25 METAL GRAPHITE

Metal Graphite - CG25

Materialeigenschaften

Grades: CG25 – 25% Cu

Widerstand (Ohm/um): 8-10

Rockwell Hardness (HR10): 55-70

Voltage Drop (V): 1.8

Reibungskoeffizient: 0.25

Nennstromdichte: 12

max. Geschwindigkeit (m/s): 20

Pressure in Use (kPa): 17

Hauptanwendung:DC machines up to 80V,small traction motors and slip rings of asynchronous
motors

Electrographite Grades

E17 Electrical Graphite

Electrographite - E17

Materialeigenschaften

Klasse: E17

Widerstand (Ohm/um): 0.2-0.25

Rockwell Hardness (HR10): 70-85

Voltage Drop (V): 0.5

Reibungskoeffizient: 0.2

Nennstromdichte: 20

max. Geschwindigkeit (m/s): 20

Pressure in Use (kPa): 20

Hauptanwendung: Sling rings of high speed turbo-generators 

e30- electrographite

Electrographite - E30

Materialeigenschaften

Klasse: E17

Widerstand (Ohm/um): 38-45

Rockwell Hardness (HR10): 70-80

Voltage Drop (V): 2.6

Reibungskoeffizient: 0.25

Nennstromdichte: 10

max. Geschwindigkeit (m/s): 40

Pressure in Use (kPa): 29

Hauptanwendung: 120-440DC machines automobile generators

E33 ELECTROGRAPHITE

Electrographite - E33

Materialeigenschaften

Klasse: E33

Widerstand (Ohm/um): 50-60

Rockwell Hardness (HR10): 78-90

Voltage Drop (V): 2.8

Reibungskoeffizient: 0.25

Nennstromdichte: 12

max. Geschwindigkeit (m/s): 50

Pressure in Use (kPa): 29

Hauptanwendung: Rolling stock motors and main generators, AC commutator motors, and other DC motors

electrographite - e33n

Electrographite - E33N

Materialeigenschaften

Klasse: E33N

Widerstand (Ohm/um): 50-60

Rockwell Hardness (HR10): 80-90

Voltage Drop (V): 2.8

Reibungskoeffizient: 0.2

Nennstromdichte: 12

max. Geschwindigkeit (m/s): 60

Pressure in Use (kPa): 29

Hauptanwendung: Rolling stock motors and main generators, AC commutator motors, and other DC motors

ELECTRO GRAPHITE E33F

Electrographite - E33F

Materialeigenschaften

Klasse: E33N

Widerstand (Ohm/um): 50-60

Rockwell Hardness (HR10): 85-100

Voltage Drop (V): 2.7

Reibungskoeffizient: 0.2

Nennstromdichte: 12

max. Geschwindigkeit (m/s): 50

Pressure in Use (kPa): 29

Hauptanwendung: traction motors and main generators for locomotives and high speed excites for turbo-generators

electro graphite e908

Electrographite - E908

Materialeigenschaften

Klasse: E33N

Widerstand (Ohm/um): 60-67

Rockwell Hardness (HR10): 70-75

Voltage Drop (V): 2.9

Reibungskoeffizient: 0.2

Nennstromdichte: 12

max. Geschwindigkeit (m/s): 40

Pressure in Use (kPa): 29

Hauptanwendung: Small DC machines with high angular velocity 110v power tools with high current density

Natual Graphite Grades

Natural Graphite NG734

Natural Graphite - NG734

Materialeigenschaften

Klasse:NG734

Widerstand (Ohm/um): 17-20

Rockwell Hardness (HR10): 55-70

Voltage Drop (V): 2.5

Reibungskoeffizient: 0.27

Nennstromdichte: 10

max. Geschwindigkeit (m/s): 80

Pressure in Use (kPa): 17

Hauptanwendung:especially suitable for slip rings of large turbogenerators

Pitch-bonded Graphite Grades

pitch bonded graphite - r211

Pitch-bonded Graphite - R211

Materialeigenschaften

Klasse:R211

Widerstand (Ohm/um): 17-20

Rockwell Hardness (HR10):55-706

Voltage Drop (V): 2.5

Reibungskoeffizient: 0.27

Nennstromdichte: 10

max. Geschwindigkeit (m/s): 80

Pressure in Use (kPa): 17

Hauptanwendung:DC or AC commutator machines, forklift application

Resin-Bonded Graphite Grades

HARZGEBUNDENER GRAPHIT - P89 - Kohlebürste für Elektrowerkzeuge

RESIN-BONDED GRAPHITE - P89

Materialeigenschaften

Klasse: P89

Widerstand (Ohm/um): 1550-1650

Shore-Härte: 20

Dichte (g/cm3): 1.4

Reibungskoeffizient: sehr niedrig

Spannungsabfall: sehr hoch

Nennstromdichte: 11

max. Geschwindigkeit (m/s): 50

Hauptanwendung: 240v Elektrowerkzeuge und Staubsauger <2000w

Kunstharzgebundener Graphit - S. 84

RESIN-BONDED GRAPHITE - P84

Materialeigenschaften

Klasse: P84

Widerstand (Ohm/um): 900-950

Shore-Härte: 23

Dichte (g/cm3): 1.45

Reibungskoeffizient: sehr niedrig

Spannungsabfall: sehr hoch

Nennstromdichte: 10

max. Geschwindigkeit (m/s):25

Hauptanwendung: 110-V-Elektrowerkzeuge <1600 W

HARZGEBUNDENER GRAPHIT - P81 - Elektrowerkzeug-Kohlebürste

RESIN-BONDED GRAPHITE - P81

Materialeigenschaften

Klasse: P81

Widerstand (Ohm/um): 900-950

Shore-Härte: 18

Dichte (g/cm3): 1.42

Reibungskoeffizient: sehr niedrig

Spannungsabfall: sehr hoch

Nennstromdichte: 10

max. Geschwindigkeit (m/s): 35

Hauptanwendung: 240v power tools <1500w

RESIN-BONDED GRAPHITE - P015

RESIN-BONDED GRAPHITE - P015

Materialeigenschaften

Klasse: P015

Widerstand (Ohm/um): 900-950

Shore-Härte: 18

Dichte (g/cm3): 1.42

Reibungskoeffizient: sehr niedrig

Spannungsabfall: sehr hoch

Nennstromdichte: 10

max. Geschwindigkeit (m/s): 35

Hauptanwendung: 230V chain saw and jig saw

EQUIVALENT GRADE RECOMMENDATIONS

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