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DC Brushless Inner Rotor Motor Series
Xiangming · Brushless DC Motor

DC Brushless Inner Rotor Motor Series

High-efficiency, low-noise motors for HVAC and industrial fan applications

10W-550W
Power Range
IP55/IP65
Protection
φ55-φ139
Frame Size
6000+ h
Lifespan
Xiangming
26+ Countries Export · 120+ Patents · 2000+ Product Variants

What Is Xiangming DC Brushless Inner Rotor Motor?

Xiangming's brushless DC inner rotor motors combine high efficiency with ultra-low noise operation. The φ55-φ139 series features maintenance-free bearings and wide speed control range, ideal for HVAC systems and industrial fan applications.

Wide Power Range

10W to 550W output for diverse applications

Low Noise

Optimized design for quiet operation under 45dB

Robust Protection

IP55/IP65 rated for harsh environments

Core Features & Benefits

Precision Engineering

Tight tolerance rotor-stator alignment for maximum efficiency

Smart Control

Compatible with PWM, voltage, and current control methods

Long Service Life

Maintenance-free design with >6000 hour lifespan

Technical Specifications

φ55-φ139 Series Technical Specifications
Frame Sizeφ55, φ80, φ105, φ120, φ139mm
Power Range10W - 550W
Voltage12-310VDC (custom AC available)
Speed Range500-5000 RPM (customizable)
Protection ClassIP55/IP65
Noise Level<45dB @ 1m
Efficiency>85% (peak 92%)
Bearing TypeDouble-shielded ball bearing

Complete Model Comparison

ModelFrame (mm)Power (W)Voltage (VDC)IP Rating
XM-BL55φ5510-5012-48IP55
XM-BL80φ8060-15024-96IP55
XM-BL105φ105200-30048-190IP65
XM-BL120φ120350-45096-310IP65
XM-BL139φ139500-550190-310IP65

Industry Applications

HVAC Systems

  • Fresh air ventilators
  • Heat recovery units
  • Air handling units

Industrial Equipment

  • Centrifugal fans
  • Axial fans
  • Cooling towers
  • Air curtains

Specialty Applications

  • Medical equipment
  • Laboratory instruments
  • Cleanroom systems

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