Brushless motor RB-3711-CE series

BLDC12 V18 V

Product Overview
RB-3711-CE is an outer-rotor brushless DC motor (BLDC) featuring a 37 mm diameter and a compact flat-body thickness of 33 mm. It delivers up to 280 W rated power (variant dependent) and no-load speeds up to 26,500 rpm. The motor is designed for high-torque, space-constrained applications and supports OEM/ODM customization across a wide voltage range (12–26 V).

Key Facts for Engineering Buyers

• Product category: Outer-rotor brushless DC motors
• Motor family: RB-3711 series (RB-3711-CE)
• Brand / manufacturer: KWC Motor, Dongguan KWC Machinery Co., Ltd.
• Typical applications: industrial drones, high-pressure washers, intelligent RC boats and electric mobility units

Specification Signals

• Diameter: 37 mm
• Voltage: 12 V – 26 V (depending on variant)
• No-load speed (max): 26,500 rpm
• Output power (max): 280 W

Customization and Sourcing Notes
KWC Motor supports OEM/ODM customization of KV (RPM/V), voltage range, shaft design and direction (CW/CCW), connectors and cable length, mounting flanges, prop adapters, gearbox integration, control tuning, and noise/EMC targets. Final pricing and lead times are provided after confirming application, quantity and specific custom requirements. Samples typically available in 7–14 days.

Target Applications & Solutions
RB-3711-CE is suited for demanding, high-load applications requiring high torque and power density in a compact form factor. The outer-rotor architecture increases rotational inertia for direct drive of large propellers and stable thrust in UAVs and RC models. The open air-cooling design and efficient self-cooling structure enable sustained operation under high load for cordless handheld pressure washers and electric mobility products.

Technical Specifications (table)
Model | Operating Voltage | Nominal Voltage | No-load Speed | Speed @ Max. Efficiency | Torque @ Max. Efficiency | Output Power
RB-3711-CE-N-01 | 18.0V – 26.0V | 21.6V | 26,500 rpm | 21,500 rpm | 1275 g·cm | 280 W*
RB-3711-CE-N-02 | 18.0V – 26.0V | 18.0V | 22,000 rpm | 18,000 rpm | 1000 g·cm | 185 W
RB-3711-CE-N-03 | 12.0V – 26.0V | 12.0V | 22,000 rpm | 18,000 rpm | 1000 g·cm | 185 W
RB-3711-CE-N-04 | 18.0V – 26.0V | 24.0V | 22,000 rpm | 18,000 rpm | 1000 g·cm | 185 W

Features / Technical Specifications

• Model series: RB-3711-CE
• Diameter: 37 mm
• Thickness / flat body: 33 mm
• Voltage range: 12–26 V (variant dependent)
• KV customization: 900–3000 KV (example range)
• Shaft directions: CW and CCW
• Inspection & delivery: 100% dynamic balance and electrical testing; samples 7–14 days; scalable mass production