Our Drill Power Tools Carbon brush can increase uptime and reduce maintenance costs by improving machine reliability and availability. We have a strict control system for the quality of carbon brushes. Our traceability system not only pays attention to the inspection during the production process, but also pays attention to the incoming test of raw materials (such as graphite powder and copper powder).
Material |
Model |
Resistance |
Bulk density |
Rated current density |
Rockwell hardness |
loading |
Carbon black |
D308 |
40±40% |
1.62±10% |
10 |
86(-45%~+25%) |
100KG |
D374L |
50±50% |
1.71±10% |
12 |
82(-50%~+67%) |
100KG |
|
D374B |
57±57% |
1.57±10% |
12 |
83(-35%~+20%) |
100KG |
|
Advantage: high strength, low bulk density, good rectification performance |
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Application of D308: suitable for mirco DC motor, like voltage regulator |
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Application of D374L: suitable for small high speed series excited motor |
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Application of D374B: suitable for traction motor, generator motor, exciting dynamo motor or DC motor which commutator cannot be used |
Our Drill Power Tools Carbon brush are widely used in automotive starters, automotive alternators, power tool motors, machinery, molds, metallurgy, petroleum, chemical, textile, electromechanical, universal motors, DC motors, diamond tools and other industries.
We fully implement the ISO9001 quality certification, and at the same time introduce advanced foreign production technology and formula, the products produced are widely used in many fields, and are sold well in domestic and foreign markets, and are exported to North America, Southeast Asia, Europe and other regions.