Hiwonder HPS-2027 20KG High Torque Digital Servo 270° Rotation Waterproof Full Metal Gear
Hiwonder HPS-2027 20KG High Torque Digital Servo 270° Rotation Waterproof Full Metal Gear
The Hiwonder HPS-2027 is a 20kg.cm high torque digital servo with full metal gears and an aluminum alloy case for efficient heat dissipation. It offers a controllable rotation range of 0 to 270° with excellent linearity, and can rotate 360° when power is off. Designed for RC models and DIY projects, it features a high-precision potentiometer for accurate control and is sealed for water resistance.
Torque, voltage, and control
At 7.4V, this servo delivers up to 20kg.cm of torque, driven by a digital circuit that provides precise positioning. The PWM pulse width ranges from 500 to 2500 microseconds, mapping to the full 270° rotation. The included metal servo arm helps transmit that torque reliably to your mechanism.
Full metal gear and aluminum case
Internal gears are fully metal, improving accuracy and extending service life. The outer case is made of aluminum alloy, which enhances heat dissipation so the servo can maintain performance during extended use. Dual ball bearings support the output shaft for smooth movement.
270° control and splash resistance
The controllable angle is 0 to 270° with good linearity and accurate control. When power is off, the output shaft can rotate freely a full 360°. The servo is sealed to withstand water splashes, making it suitable for outdoor RC vehicles in wet conditions.
Technical specifications
| Torque (7.4V) | 20 kg·cm |
| Rotation range (powered) | 0–270° |
| Rotation range (unpowered) | 360° free |
| PWM range | 500–2500 μs |
| Gear material | Full metal |
| Case material | Aluminum alloy |
| Dimensions | 1.57 x 1.59 x 0.79 inches |
| Weight | 3.52 ounces |
| Model number | HPS-2027 |
| Recommended age | 14 years and up |
Common questions
What is the maximum torque?
At 7.4V the servo produces 20kg·cm of torque. The input does not specify torque at other voltages, so assume that is the rated maximum.
Can it rotate a full 360 degrees while powered?
No. Under power the servo is limited to 270° of controllable rotation. When power is disconnected the shaft can be turned 360° freely.
Is this servo waterproof?
It is designed to be water-resistant, with a sealed construction that allows operation in splash conditions. It is not intended for submersion.
What are the dimensions and weight?
Dimensions: 1.57 x 1.59 x 0.79 inches. Weight: 3.52 ounces.