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Source factory & No middleman !

Carbon Brush manufacturer In China

20+ Years

With more than 20 years of experience in the Carbon Brush industry, JCL Industry has advanced precision CNC machining equipment.

OEM & ODM

JCL industry has several production lines, CNC bending machines, shearing machines, protection welding and other high-grade production facilities.

Personal engineer

From communication to order confirmation, product production and processing and after-sales have exclusive engineers and you docking!

Focus on Carbon Brush Manufacturing

JCL Carbon  is the leading Carbon Brush manufacturer based in Nantong, China since 2006. We offers different material for carbon brushes for motor. Such as carbon-graphite, electrographitic, graphite, metal-graphite, Silver Graphite and etc. We can produced over 100+ standard motor brushes. Plus, we can  offer custom options too.

Carbon Graphite Brushes
Electrographitic Carbon Brush
Metal Graphite Carbon Brushes
Resin Bonded Carbon Brushes
Press or Molded Carbon Brush
Split Carbon Brushes
Silver Carbon Brush
High Power Carbon Brushes
Low Voltage Carbon Brushes

About JCL Carbon

JCL CARBON was established in June 2004, covering an area of 40,00 square meters, including 20,00 square meters of plant area.

The company is located in the beautiful scenery of Nantong Haimen County, is the earlier domestic use of advanced technology to produce Carbon Brushes products.

We can produce many different carbon brushes for motors. such as: Carbon Graphite Brushes, Electrographitic Carbon brush, Metal Graphite Carbon Brushes, Resin Bonded Carbon Brush, Split Carbon brushes, Extruded Carbon Brushes And other motor brushes!

Production Process

Raw Material

Carbon brushes, used in electric motors and generators, are primarily made from graphite, with the addition of metal powders and binders. These materials are carefully chosen to balance electrical conductivity, wear resistance, and self-lubricating properties.

  • Carbon graphite
  • Electrographite
  • Metal graphite
  • Silver graphite
  • Resin-bonded graphite

Fabrication

Carbon brushes are typically manufactured by mixing carbon and/or graphite powders with a binder, molding the mixture, and then subjecting it to heat treatment to cure or sinter the binder, followed by final machining.

  • Raw Material Preparation
  • Mixing and Molding
  • Heat Treatment
  • Machining and Finishing
  • Impregnation
  • Surface Treatment

Assembly

carbon brush assembly in an electric motor typically consists of a carbon block, shunt, spring, and holder. The carbon block acts as the primary electrical contact, the shunt is a flexible copper wire connecting the block to the external circuit, and the spring maintains pressure on the brush against the commutator or slip ring. The holder secures the brush and spring, ensuring proper alignment and contact.

  • Carbon Block
  • Shunt (or Flexible Copper Wire)
  • Spring
  • Holder
  • Terminal

Marking

Marking carbon brushes is important for various reasons, including identification, traceability, and ensuring proper installation and maintenance. Here are common methods and considerations for marking or labeling carbon brushes:

  • Stamped or Engraved Markings
  • Labels
  • Laser Marking
  • Dot Peening
  • Paint Pens/Markers

Quality Inspection

Quality inspection of carbon brushes is crucial for maintaining the performance and extending the lifespan of electric motors and generators. Regular checks and replacement as needed can prevent costly repairs and downtime.

  • Visual Inspection
  • Dimensional checks
  • Performance & Electrical checks
  • Brush holder and commutator inspection
  • Other important considerations

Packing

When packing carbon brushes for shipping or storage, focus on protecting them from damage and moisture. Use padded envelopes or blister packs for lighter shipments, and consider individual packaging with anti-static bags for sensitive brushes. Ensure brushes are clean and dry before packing, and avoid over-tightening any packaging materials that could damage them.

  • Clean and Dry
  • Individual Packaging
  • Secure Placement
  • Appropriate Packaging
  • Avoid Over-Tightening
  • Label Clearly
  • Moisture Protection

Shipping

First, we work with top logistic, courier and Freight agent allowing us the most competitive transit time and pricing.

Second, we supply packing material like carboard boxes, or on pallets depending on the material size of your order. We can do that !

  • More than 300 SKU Stock
  • Strong Packing
  • Fast delivery
  • Truthful Supplier

Application

Carbon brushes are widely used across numerous industries due to their essential role in facilitating electrical current transfer in rotating machinery like motors and generators.

Power Tools & Household

Carbon brushes are a vital component in electric motors used in power tools such as drills, grinders and saws.

Industrial Machinery

Carbon brushes are integral to large industrial motors and generators used in manufacturing facilities, steelworks, and power plants.

Automotive Industry

Carbon brushes are used in various automotive applications, including starter motors, windshield wipers, and power windows.

Renewable Energy

Carbon brushes play a critical role in wind turbines, ensuring reliable power generation.

Medical Technology

Carbon brushes are essential for CT scanners and other medical equipment requiring low-noise and precise power transmission.

Crane Industry Systems

Carbon brushes are used in overhead cranes and other material handling systems.

customized service

Our production environment

We are factory direct sales, from consumers to stores to wholesalers to agents to general distributors to factory merchants, choose us to save a lot of intermediate links, to bring you the maximum profit margin!

Professional, enthusiastic and reliable Carbon Brushes specialists

I am Toby. I have 8 years of experience in the Carbon industry, which allows me to quickly understand your needs and develop the most suitable procurement plan for you.

Common Questions

Most Popular Questions.

We have listed some questions you may ask. If you have more inquiries about our products, you can send an inquiry to contact us.

Carbon brushes for electric motors and generators are primarily made from graphite-based materials. These include carbon graphite, electrographitic, graphite, and metal graphite. The specific material is chosen based on the motor’s demands and operating environment.

Absolutely! Carbon brushes can be customized in terms of both size and appearance to fit specific motor or generator applications. While some brushes can be adjusted slightly with sanding or filing, We offer custom-engineered brushes to meet precise requirements. This includes tailoring the dimensions (thickness, width, length), material composition (graphite, metal-graphite, etc.), and even the spring design for optimal performance and longevity.

Carbon brushes are considered very good at self-lubrication. Their unique properties, stemming from their composition of carbon and graphite, allow them to reduce friction and wear without the need for additional lubricants, making them ideal for various applications, especially in electric motors and generators.

Carbon brushes in electric motors wear down over time and can cause performance issues. Key indicators of worn carbon brushes include increased sparking, a burning smell, reduced power or speed, and visible wear on the brushes themselves, such as them being significantly shorter or damaged. A visual inspection, comparing the remaining brush length to the original, and looking for signs of damage or uneven wear, is crucial for determining if replacement is needed.

Carbon brushes, commonly found in electric motors, typically last between 50 and 5,000 hours of operation, but their lifespan can vary significantly depending on several factors. These factors include the type of material used for the brush, the operating conditions of the motor, and how frequently and intensely the tool is used.

Reviews From Customers

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