Brushless motor RB-27-62 series

BLDC100 V12 V

Product Overview
RB-27-62 is a 27 mm brushless DC motor (BLDC) from KWC Motor designed for high-airflow, ultra-high-speed applications such as high-power hair dryers, industrial cooling fans and handheld fans. Diameter 27 mm; typical maximum speed up to 120,000 rpm; maximum power up to 150 W depending on variant. Global voltage options and extensive OEM/ODM customization are supported.

Key Facts for Engineering Buyers

• Product category: Brushless DC Motors (BLDC)
• Motor family: RB-27 series
• Brand / manufacturer: KWC Motor (Dongguan KWC Machinery Co., Ltd.)
• Typical applications: high-power hair dryers, industrial cooling fans, handheld lithium-battery fans

Specification Signals

• Diameter: 27 mm
• Voltage ranges (examples): 6.0V–9.0V, 9.0V–16.0V, 90.0V–120.0V, 180.0V–240.0V
• Speed: up to 120,000 rpm (typically 120,000 ± 5,000 rpm)
• Output power: typically 120 W, some variants up to 150 W

Core Applications & Solutions

• Professional high-speed hair dryers: supports larger impellers (standard 35 mm, 13-blade) for increased air pressure and flow; available in global direct-drive voltage options (100V–240V).
• Industrial cooling & lithium-battery fans: compact, high-airflow solution for equipment cooling and high-power handheld battery fans (also available in 7.2V and 12V variants).

Technical Specifications (table)
Model | Operating Voltage Range | Nominal Voltage | Rated Speed | Rated Current | Output Power
RB-27-62-N-01 | 90.0V – 120.0V | 100.0V | 120,000 ± 5,000 rpm | 1 A | 120 W
RB-27-62-N-02 | 180.0V – 240.0V | 220.0V | 120,000 ± 5,000 rpm | 1.5 A | 120 W
RB-27-62-N-03 | 9.0V – 16.0V | 12.0V | 120,000 ± 5,000 rpm | – | 120 W
RB-27-62-N-04 | 6.0V – 9.0V | 7.2V | 120,000 ± 5,000 rpm | – | 150 W

Customization and Manufacturing Notes
Standard configuration includes a 35 mm diameter, 13-blade impeller. OEM/ODM customization available for voltage, speed, torque, shaft design, cable/connector, gearbox integration, control electronics and noise/EMC targets. Standard quality controls include dynamic balance testing to G0.4 grade and RoHS/REACH compliance. Typical sample lead times and scalable production capacity are supported depending on order quantity.

Characteristics / technical specifications

• Model name: RB-27-62
• Diameter: 27 mm
• Standard impeller: 35 mm, 13-blade
• Speed: 120,000 ± 5,000 rpm (typical)
• Output power: 120 W (variants up to 150 W)
• Voltage variants: 6.0V–240.0V (depending on model)
• Rated current examples: 1 A (100 V variant), 1.5 A (220 V variant)
• Applications: professional hair dryers, industrial cooling, handheld battery fans
• Manufacturer: KWC Motor (Dongguan KWC Machinery Co., Ltd.)