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- Sima Motor Carbon Brushes: The Perfect Combination of Superior Quality and Stable Performance
Simo motorsCarbon Brushes: The Perfect Combination of Superior Quality and Stable Performance
Product Overview
The carbon brushes for Simo motors are made usingAdvanced Carbon Materials和Precision Manufacturing ProcessKey components for electric motors, specifically designed for various AC applications.DC motorGenerator design. The product adoptsHigh-quality metal powders and carbon-based materialsScientifically proportioned, throughHigh-temperature sintering and precision machiningand thus formed, possessingSuperior electrical conductivity, stable commutation characteristics, and extended service lifeThese characteristics make them widely used in motor systems across various fields such as industrial motors, power equipment, and transportation.

Simo Motor Carbon Brushes are characterized byExcellent technical performance和Reliable Quality AssuranceIt has become the preferred choice for numerous industrial equipment manufacturers and maintenance enterprises, providing a robust guarantee for the efficient and stable operation of motor equipment.
Core Technical Features
1. Premium Material Properties
- Advanced Material Formulation: Utilizing high-purity graphite material with added copper, silver, and other metal powders to ensure excellent electrical conductivity and wear resistance.
- Scientific Structural DesignThe unique pore structure facilitates the formation of a stable oxide film, improving commutation performance.
- Temperature AdaptabilityMaintains stable physical and electrical properties within a temperature range of -40°C to +120°C.
2. Outstanding electrical performance
- Low contact voltage dropLow contact resistance, stable voltage drop, effectively reducing energy loss
- Superior reversing capability:Features excellent commutation performance and effectively suppresses spark generation.
- High current carrying capacityRated current density can reach 12-15 A/cm², with strong overload capability.
3. Stable mechanical properties
- Uniform Wear CharacteristicsExcellent wear resistance, long service life, and uniform wear
- Moderate hardness and strengthHardness range is appropriate (Shore hardness 60-120), ensuring wear resistance without causing excessive wear on the commutator.
- Excellent lubricating propertiesSelf-lubricating properties reduce wear on the commutator.
Technical Parameter
| parameter category | technical specification |
|---|---|
| Resistivity | 5–50 μΩ·m |
| Rated current density | 12–15 A/cm² |
| Applicable linear velocity | Up to 70 m/s |
| Shore hardness | 60-120 |
| Flexural strength | ≥15 MPa |
| Bulk density | 1.6–2.2 g/cm³ |
| Operating Temperature Range | -40°C to +120°C |
Product Series and Application Fields
1. Electrographite Carbon Brushes
- Product FeaturesModerate hardness, relatively high electrical resistance coefficient, and excellent commutation performance.
- Applicable ScenariosDC motors, steam generators, asynchronous motors
- Typical ApplicationsRolling mill motors, winches, cranes, etc.
2. Metal-graphite carbon brushes
- Product FeaturesHigh copper content, low electrical resistivity, high current density
- Applicable ScenariosLow-voltage DC motors, charging generators
- Typical Applications: Automotive starter motors, electrolytic plating power supplies
3. Resin-bonded graphite carbon brushes
- Product FeaturesHigh mechanical strength and excellent impact resistance
- Applicable ScenariosHigh-speed motors, harsh operating conditions
- Typical ApplicationsHigh-speed grinding machine, centrifuge
Product Advantages
1. Performance Advantages
- Operates stablyThe brushes maintain good contact with the commutator, ensuring smooth operation with minimal vibration.
- Low spark levelUnder normal operating conditions, the spark level can be controlled below 1¼.
- Long service life:Average service life increased by over 30% compared to ordinary carbon brushes
2. Quality Advantage
- Strict quality controlEnd-to-end quality control from raw materials to finished products
- Precision dimensional tolerancesStrict dimensional control ensures easy installation and reliable contact.
- Good consistencyProducts from the same batch exhibit consistent performance, facilitating grouped replacement.
3. Service Advantages
- Professional Selection GuidanceProvide professional technical support to assist in selecting the most suitable carbon brush model.
- Enhance after-sales support:Provide comprehensive technical services and quality assurance
- Rapid Supply CapabilityAdequate inventory ensures emergency needs are met.
Selection Guide
1. Selection Criteria
- Motor typeDifferent types of motors—such as DC motors, AC motors, and generators—have distinct requirements for carbon brushes.
- Working Conditionsincluding load characteristics, duty cycle, environmental conditions, etc.
- Technical Parameter: Voltage, current, rotational speed, and other key parameters
- mounting spaceCarbon brush dimensions, pressure, and other mechanical parameters
2. Model Selection Recommendations
- Heavy-duty motorSelect metal-graphite carbon brushes, featuring high current density and excellent conductivity.
- High-speed motorElectrographite carbon brushes are selected for their high mechanical strength and excellent commutation performance.
- Precision equipmentResin-bonded graphite carbon brushes ensure smooth operation with minimal sparking.
Installation and Maintenance
1. Installation Notes
- Surface break-inAfter installing new carbon brushes, proper running-in is required to ensure the contact area with the commutator exceeds 80%.
- Spring pressureAdjust the spring pressure to an appropriate level, typically maintained between 15 and 25 kPa.
- Replace simultaneouslyAll carbon brushes for the same motor should be replaced simultaneously to ensure stable operation.
2. Key Points for Use and Maintenance
- Regular inspectionRegularly inspect the wear condition of the carbon brushes and replace them promptly.
- Cleaning and MaintenanceKeep the brush holder clean to ensure the carbon brushes move freely.
- Operational MonitoringPay close attention to the spark condition and promptly identify any abnormalities.
Troubleshooting and Resolution
Frequently Asked Questions and Solutions
- Excessive SparkCheck spring pressure and commutator condition; adjust carbon brush position.
- Excessive wearCheck whether the current density is excessive and whether the environment is dusty.
- Poor contact: Perform proper break-in to ensure contact area
Service Support
Simo Electric provides customers with comprehensive technical services:
- Technical ConsultationProvide professional selection recommendations and technical guidance.
- Installation GuideProvide detailed installation and usage instructions.
- After-sales Support:Provide comprehensive quality assurance and after-sales service
- Technical SupportAssist in resolving technical issues encountered during use
concluding remarks
Simo Motor Carbon Brushes are characterized byPremium materials、Advanced technology和Strict quality controlEnsure the product possessesStable performance and long service lifeWe are committed to providing our customers withThe finest products and servicesHelp users improve equipment operational reliability and reduce maintenance costs.
Choosing Simo Motor carbon brushes means choosingReliable quality和Reliable serviceWe look forward to working with you to jointly enhance equipment operational efficiency.





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