A carbon brush transmits electric current between stationary and rotating parts through sliding contact. Since the performance of carbon brushes significantly impacts the efficiency of rotating machinery, selecting the appropriate carbon brush is crucial. Motors used in power tools, compared to those in vacuum cleaners, require more wear-resistant carbon brushes. Thus, based on the characteristics of power tool motors, our company has developed the RB series of graphite materials. The graphite carbon blocks of the RB series possess superior wear-resistant physical properties, making them highly suitable for various power tool carbon brushes. The reputation and professionalism of the RB series graphite materials are currently among the top tier in the industry, favored by both Chinese and international power tool companies.
At Huayu Carbon, we use advanced technology and years of quality assurance expertise developed in our research field to develop and produce carbon brushes for various customer needs and applications. Our products have minimal environmental impact and can be used in a wide range of applications.
This series of carbon brushes is known for its exceptional commutation performance, minimal sparking, long-lasting durability, resistance to electromagnetic interference, and outstanding braking capabilities. These brushes are widely used in a variety of DIY and professional electric tools, with the safety brushes, which feature automatic shutdown, being especially highly regarded in the market. Their superior performance and reliability make them a popular choice for a wide range of applications, including power tools, industrial equipment, and automotive systems. The brushes' ability to minimize sparking and resist electromagnetic interference ensures smooth and efficient operation, while their durability and braking capabilities contribute to their overall effectiveness and safety. Whether used in DIY projects or professional settings, these carbon brushes are valued for their high performance and versatility, making them an essential component in the electric tool industry.
100A Angle grinder
The composition of this product is suitable for use with most angle grinders.
Type | Material name | Electrical resistivity | Shore hardness | Bulk density | Flexural strength | Current density | Allowable circular velocity | Main Use |
( μΩm) | (g/cm3) | (MPa) | (A/c㎡) | (m/s) | ||||
Electrochemical graphite | RB101 | 35-68 | 40-90 | 1.6-1.8 | 23-48 | 20.0 | 50 | 120V power tools and other low-voltage motors |
Bitumen | RB102 | 160-330 | 28-42 | 1.61-1.71 | 23-48 | 18.0 | 45 | 120/230V Power tools/Garden tools/cleaning machines |
RB103 | 200-500 | 28-42 | 1.61-1.71 | 23-48 | 18.0 | 45 | ||
RB104 | 350-700 | 28-42 | 1.65-1.75 | 22-28 | 18.0 | 45 | 120V/220V power tools/cleaning machines, etc | |
RB105 | 350-850 | 28-42 | 1.60-1.77 | 22-28 | 20.0 | 45 | ||
RB106 | 350-850 | 28-42 | 1.60-1.67 | 21.5-26.5 | 20.0 | 45 | Power tools/garden tools/drum washing machine | |
RB301 | 600-1400 | 28-42 | 1.60-1.67 | 21.5-26.5 | 20.0 | 45 | ||
RB388 | 600-1400 | 28-42 | 1.60-1.67 | 21.5-26.5 | 20.0 | 45 | ||
RB389 | 500-1000 | 28-38 | 1.60-1.68 | 21.5-26.5 | 20.0 | 50 | ||
RB48 | 800-1200 | 28-42 | 1.60-1.71 | 21.5-26.5 | 20.0 | 45 | ||
RB46 | 200-500 | 28-42 | 1.60-1.67 | 21.5-26.5 | 20.0 | 45 | ||
RB716 | 600-1400 | 28-42 | 1.60-1.71 | 21.5-26.5 | 20.0 | 45 | Power tools/drum washing machine | |
RB79 | 350-700 | 28-42 | 1.60-1.67 | 21.5-26.5 | 20.0 | 45 | 120V/220V power tools/cleaning machines, etc | |
RB810 | 1400-2800 | 28-42 | 1.60-1.67 | 21.5-26.5 | 20.0 | 45 | ||
RB916 | 700-1500 | 28-42 | 1.59-1.65 | 21.5-26.5 | 20.0 | 45 | Electric circular saw, electric chain saw, gun drill |