XQ‑BLS8185DC CAN‑BUS brushless servo delivers max 85kg‑cm torque @16.8V, stainless‑steel gears, CNC aluminum housing, IP68 waterproof for robotics, 1/5 RC cars, UAV gimbals & industrial automation.
If you are building heavy‑load robotic joints, large‑scale 1/5 RC vehicles, UAV gimbals, or industrial automation projects that demand extreme torque, high‑voltage performance and reliable bus‑based control, the XQ‑BLS8185DC CAN‑BUS Brushless Digital Servo is engineered for your most demanding applications. Building upon the proven hardware of XQ‑BLS8185D, this CAN‑BUS enhanced variant adds robust serial‑bus communication while keeping the class‑leading torque, speed and environmental resistance RC and industrial users expect from XQ‑POWER high‑voltage servos.

Core Specifications of XQ‑BLS8185DC CAN‑BUS Servo
Model No: XQ‑BLS8185DC
| Parameter | Value |
|---|---|
| Outer Dimension | 40*20*44 mm |
| Weight | 92g ±0.2g (3.1 oz, excluding accessories) |
| Gear Set | High‑strength Stainless Steel Gear |
| Motor | High‑quality Brushless Motor |
| Operating Voltage | 8.4V‑16.8V (2S‑4S Li‑Po High‑Voltage) |
Torque Output
- 42 kg·cm (538 oz‑in) @8.4V
- 60 kg·cm (834 oz‑in) @12V
- 85 kg·cm (1180 oz‑in) @16.8V (Peak Torque)
Communication Interface
- Standard PWM analog‑digital signal compatible
- CAN‑BUS serial bus protocol (multi‑servo synchronous control, real‑time position, temperature & load feedback)
- Tamper‑proof heavy‑duty servo wire
Mechanical & Environmental
- Housing: Full CNC‑machined All‑Aluminium case, optimized heat dissipation & anti‑corrosion
- Waterproof Grade: IP68 waterproof rating
- Dual‑bearing shaft support for heavy side‑load resistance
Key Advantages: Why Choose XQ‑BLS8185DC CAN‑BUS Servo
1. Massive 85kg‑cm Peak Torque Under 16.8V High‑Voltage
Most large‑size servos deliver reduced torque when running high voltage; XQ‑BLS8185DC scales torque upward as voltage increases. At full 16.8V 4S Li‑Po input, it outputs a huge 85kg‑cm torque, perfect for heavy robotic joints, large turret mechanisms, 1/5 scale RC buggy steering and heavy payload gimbal systems. Stainless‑steel gear trains absorb shock and repetitive heavy‑load stress to prevent gear stripping.
2. CAN‑BUS + Dual‑Mode Compatibility
This is the main upgrade vs the standard XQ‑BLS8185D. The integrated CAN‑BUS interface lets you daisy‑chain multiple servos on one bus line, achieving multi‑axis synchronous movement. You can read real‑time data: servo position, working temperature, output load status directly over bus for closed‑loop automation control.
If you still use classic RC radio equipment, it retains standard PWM input so it can drop‑in replace regular PWM servos without hardware modification. One servo fits both traditional RC projects and modern industrial robotic builds.
3. CNC Full‑Aluminum Housing, Excellent Heat Dissipation
The entire shell adopts precision CNC‑milled all‑aluminum construction. During continuous high‑torque operation, heat generated by the brushless motor quickly dissipates outward through the metal casing. It resists corrosion from moisture, dust and outdoor harsh environments, critical for field robotics, UAV payload and outdoor RC vehicles.
4. IP68 Waterproof & Rugged Wiring
IP68‑grade waterproof construction allows reliable operation in rain, splash, short‑term submersion scenarios. The tamper‑proof reinforced servo wire resists pulling, abrasion and vibration damage, common pain points for heavy‑duty outdoor RC and robot systems. The high‑efficiency brushless motor brings less wear, lower noise and longer service life compared with brushed servo counterparts.
Typical Application Scenarios for XQ‑BLS8185DC
- Large humanoid robot joints, quadruped robot actuators
- 1/5 scale RC cars, monster trucks, large RC buggy steering & throttle
- UAV gimbal turret, reconnaissance payload stabilization
- Small industrial automation actuators, distributed multi‑servo control systems
- Heavy‑duty robotic arms, outdoor field robotics projects
You can compare with our serial‑bus servo:XQ‑S8035TTL‑40kg‑cm‑high‑torque‑serial‑bus‑servo for mid‑torque bus‑servo selection reference;Link to product page:XQ‑BLS8185DC‑CAN‑BUS‑Brushless‑Servo‑85kg‑16‑8v
Frequently Asked Questions
A:Both share the same mechanical hardware, torque, speed and dimension. XQ‑BLS8185DC adds CAN‑BUS serial communication function. BLS8185D is PWM‑only; DC version supports CAN‑BUS + PWM dual‑mode.
A:Yes. Working voltage range covers 8.4V(2S),12V(3S),16.8V(4S). Torque and speed will increase as input voltage rises. For maximum 85kg‑cm torque you need 16.8V(4S Li‑Po).
A:You need a controller supporting CANopen / servo CAN bus protocol. For regular RC radio control you can directly use PWM signal without any CAN‑bus setup.
A:IP68 waterproof rating supports temporary immersion. It is suitable for rain, splashing environment, NOT recommended for long‑term underwater continuous work.
Closing
For builders needing heavy‑duty actuation with digital bus feedback, the XQ‑BLS8185DC CAN‑BUS Brushless Servo combines industry‑level 85kg‑cm high‑voltage torque, stainless‑steel gearing, IP68 waterproofing and dual‑mode control. Whether you upgrade existing RC models or design custom multi‑axis robotic systems, this servo balances raw power and smart bus‑based control.
Visit the official product page for detailed datasheet, drawing and ordering information: XQ‑BLS8185DC‑CAN‑BUS‑Brushless‑Servo‑85kg‑16‑8v