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K8871 Servo

Now, by purchasing K8871, you can also obtain the servo arm jointly developed by OriRC, which offers superior performance

KeyFulcrum is proud to introduce the new all-metal-case high-voltage brushless digital magnetic induction waterproof servo - K8871. This servo is the first of its kind, originally developed by KeyFulcrum specifically for the damage-free installation on Traxxas models such as X-Maxx, XRT, Maxx, and Slash.

It has been confirmed that the K8871 servo can perfectly fit the steering servo of Traxxas' upcoming 1/8 Maxx Slash new car.

KeyFulcrum has introduced a new all-metal shell high-voltage brushless digital magnetic induction waterproof special servo - K8871. This servo is a dedicated servo for the damage-free installation of Traxxas X-Maxx, XRT and Maxx three model cars.

Introduction to the features of the K8871 servo:

1. It adopts an innovative imported waterproof, high-temperature-resistant and high-torque sensored brushless controllable drive motor. Under the same working structure, it can generate powerful high torque with controllable current and cooperate with the independent program to achieve excellent matching efficiency.

2. It uses an innovative imported magnetic induction potentiometer. With the characteristics of being resistant to water medium and having no internal contact and no wear during operation, the starting, stopping, positioning accuracy and centering accuracy of the servo are precise and error-free during the left and right stroke operations. Combined with the independent program, it highlights the best adaptation of efficiency.

3. It pioneers the use of imported high-strength integrated steel gears and laser-welded steel gears. The gear body will not loosen, is durable, is not easy to strip gears, and improves the meshing accuracy of the gear set system, making the backlash controllable.

PS: Commonly used riveted gears on the market, when used in high-torque servos, are more likely to cause the riveted positions to loosen during the operation of the servo, resulting in the servo being unable to work.

4. It has an innovative 4-bearing design, making the entire gear set have only 1 Pin which is made of high-strength ∅3.2mm alloy steel to improve its yield strength.

5. The Pin holes in the housing are inlaid with steel sleeves to enhance wear resistance and extend the service life.

6. It comes with excellent anti-stall technology that monitors the load status in real time, making the servo not easy to be damaged.

7. It continues to use the digital silent technology that has been available since the launch of the first servo and has been iteratively upgraded.

8. It adopts an imported high-resolution IC with high pole position resolution. The digital circuit integrated with the independent program can process data more, faster and more smoothly.

9. It uses an innovative imported breathable composite waterproof glue to cover and seal the circuit board, allowing the heat generated by the circuit board during operation to be dissipated freely while preventing water medium from entering, thus achieving excellent waterproof effect.

Our understanding and analysis of waterproofing are not limited to the sealing of the housing, but a complete solution for the overall electromechanical integration!

Meanwhile, KeyFulcrum and OriRC jointly launched a metal special servo arm to improve the overall controllability.

The parent company of KeyFulcrum brand and orirc brand specializes in the research, development and manufacturing of automotive parts and automotive electronic control systems. Driven by the passion for remote-controlled models, it launches high-quality servo systems and is committed to creating competitive and sustainable products and services. Stripping away the fancy packaging and meaningless interpretations, it returns to the most fundamental demands, bringing a more precise control experience to every user.