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Carbon Brushes

CH33N Carbon Brush

Part No. CH33N

CH33N electrographite carbon brush, well-known industrial grade brush for generator slip rings and heavy DC motors. Delivers consistent low sparking, stable patina formation, low commutator/slip ring wear and extended service life. Ideal replacement for power plant and heavy industrial equipment maintenance, manufactured to standard OEM tolerances, bulk supply available globally.

Material	Electrographite
Dimensions	20mm × 16mm × 32mm, copper shunt lead length:90mm
Application	OEM replacement carbon brush for industrial DC motors, synchronous generators, power plant slip ring assemblies. Widely used for excitation current transfer on large generators, heavy-duty rotating electrical equipment in power stations, steel mills and i
Voltage	AC / DC up to 600V
Current Density	3 – 10 A/cm²
Speed	Max peripheral speed up to 30 m/s
Hardness	Shore 38 – 48
Grade	CH33N Electrographite Grade
Connection	Shunt wire bonded connection
Lead Type	Flexible stranded copper shunt lead
Spring	External separate spring assembly (no built-in spring)

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Technical Specifications

Product Model	CH33N
Material	Electrographite
Dimensions	20mm × 16mm × 32mm, Copper Shunt Lead:90mm
Application	Industrial DC motors, synchronous generators, power plant slip ring assemblies
Working Voltage	AC / DC up to 600V
Current Density	3 – 10 A/cm²
Max Peripheral Speed	30 m/s
Hardness	Shore 38 – 48
Brush Grade	CH33N Electrographite Grade
Connection Type	Shunt wire bonded connection
Lead Type	Flexible stranded copper shunt lead
Spring	External separate spring assembly, no integrated spring
Key Features	Low spark, stable patina, low slip ring wear, high temperature resistance, long service life
Quality Standard	Matches CH33N grade industry specification

Description

The CH33N Carbon Brush is a popular electrographite grade carbon brush used for large synchronous generator slip rings and heavy-duty industrial DC motors. Made of premium impregnated electrographite raw material, it offers outstanding self-lubricating sliding performance and reliable electrical conduction under continuous load. This carbon brush maintains stable excitation current transfer with minimal sparking, and creates a uniform protective patina on slip ring or commutator surfaces, reducing abrasion and preventing surface damage. The bonded flexible stranded copper shunt provides secure mechanical attachment and consistent current flow. It is widely adopted in power plants, steel mills and other heavy industrial facilities for generator and motor maintenance. Precision machined dimensions guarantee simple drop-in replacement. Each batch undergoes strict quality inspection to control wear rate and performance. Bulk stock and worldwide shipping are available for industrial maintenance contractors and power plant operators.