BLASI – Motor carbon
The BLASI Motor carbon refers to replacement carbon brushes essential for maintaining brushed DC motors in automatic door operators like GP and GR series. These high-quality graphite brushes ensure reliable electrical contact, smooth commutation, and extended motor life under continuous duty cycles. Precision-engineered for Dunkermotoren GP-80, GR-42×40, and similar BLASI drive units, they prevent arcing, reduce wear, and restore full torque performance during routine service intervals.
Product Details
Critical wear components in BLASI brushed DC motors, carbon brushes maintain sliding electrical contact between stationary power leads and rotating commutator segments, transferring current that generates precise electromagnetic torque for automatic door operation. The graphite-carbon composition balances low friction against copper commutator bars with sufficient conductivity to support high starting currents required for heavy entrance panel acceleration, while self-lubricating properties minimize sparking common in industrial duty cycles.
BLASI Motor carbon brushes feature exact OEM dimensions and spring tension optimized for GP-80 (6x10x15mm typical), GR-42×40, and MP32 motors, ensuring drop-in replacement without adjustment while restoring factory commutation characteristics essential for smooth speed control and safety-compliant obstruction detection. Regular inspection reveals characteristic wear patterns—angled contact face and reduced length below 5mm—that signal replacement timing to prevent motor failure during peak traffic periods.
Technicians stock BLASI Motor carbon as routine service items for annual maintenance across commercial installations, while facilities managers value their cost-effective restoration of drive performance that extends complete motor assemblies for 50,000+ operating hours across retail centers, hospitals, and office buildings requiring uninterrupted automated entrance functionality.
Article No: 7110013
Additional information
| Brand | BLASI |
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