# High Torque Waterproof Metal Gear Digital Servo (20KG, 180°, IP54)

**Type:** Product page · **SKU:** SER0063 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/high-torque-waterproof-metal-gear-digital-servo-20kg-180-ip54.html ([markdown](https://core-electronics.com.au/high-torque-waterproof-metal-gear-digital-servo-20kg-180-ip54.html.md))

The water-resistant digital servo offering 20kg torque, 180-degree control, and enhanced linear motion. Features copper gears, dual ball bearings,...

## Pricing

- **Price:** $27.05 (inc GST) — $24.59 AUD, exc GST
- **Quantity discounts:** 6+ $23.36 (exc GST) · 12+ $22.38 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 3 today, and up to 180 more in 8–12 days.

## Description

This is an extraordinary water-resistant digital servo with formidable torque, possessing a torque capacity of 20kg and a controllable angle of 180 degrees. It exhibits enhanced linear motion and features an internal configuration of copper gears, with the gear axis thickened to an optimized 2.0 center distance. The dual ball bearing design ensures impeccable performance, while the aluminum casing promotes superior heat dissipation, thereby extending the lifespan.

![20KG 180° Metal Waterproof Servo](https://core-electronics.com.au/attachments/localcontent/1_56448dea3c0.jpg)

Additionally, this servo is equipped with electronic and temperature protections, ensuring a safer user experience. In the event of a servo lock-up, it automatically triggers a protective torque output when the torque exceeds the overload capacity for a continuous period of 8 seconds. Moreover, should the servo's temperature surpass 70 degrees, it ceases torque output, only to resume once the temperature drops below 70 degrees.

![Quality Material of Metal Waterproof Servo](https://core-electronics.com.au/attachments/localcontent/2_83968b6971a.jpg)

To enhance its water resistance, the servo's joints are fortified with waterproof gaskets, and the circuit board is coated with a waterproof varnish. Both the motor and the potentiometer are sealed with a specialized adhesive. These measures contribute to the servo's exceptional waterproof capabilities. Moreover, this servo is accompanied by a selection of different-shaped servo horns, enabling its application in a wider range of environments.

![Waterproof Design of Metal Waterproof Servo](https://core-electronics.com.au/attachments/localcontent/9_18012b4909c.jpg)

![Interface Definition Diagram of Metal Waterproof Servo](https://core-electronics.com.au/attachments/localcontent/4_29201f90863.jpg)

Interface Definition Diagram

![Dimensional Diagram of Metal Waterproof Servo](https://core-electronics.com.au/attachments/localcontent/5_438648a8624.jpg)

![](https://core-electronics.com.au/attachments/localcontent/6_346719abb8a.jpg)

Dimensional Diagram

###  Applications

13. Build robots
14. Driving part of various automated equipment
###  Specification

**Electrical characteristics**

17. Operating Voltage: 5-8.4V
18. No-Load Speed: 0.185sec/60° (54RPM) @6V,0.151sec/60° (66RPM) @7.4V
19. Operating Current: 100mA @6V,120mA @7.4V
20. Stall Torque: 16.5kg.cm/229.54oz.in @ 6V,20kg.cm/278.23oz.in @7.4V
21. Stall Current: 2.3A @6V,3A @7.4V
22. Static Current: 6mA
23. Rated Load: 5.5kg.cm @6V,6.5kg.cm @7.4V
24. Rated Current: 800mA @6V,1000mA @7.4V
25. Kt Constant: 6.5kg.cm/A
**Control characteristics**

27. Control Signal: PWM
28. Angle: 180° (at 500→2500µsec)
29. Angle Difference: =5°
30. Return Difference: =1°
31. Neutral Position: 1500µsec
32. Dead Band Width: =4µsec
33. Rotation Direction: Counterclockwise (from 1500 → 2000µsec)
34. Pulse Width Range: 500→2500µsec
35. Signal High Voltage: 2-5V
36. Signal Low Voltage: 0-0.45V
37. Signal Period: 20ms
**Mechanical Specifications**

39. Casing Material: PA+Aluminum
40. Gear Material: Copper
41. Bearing Type: Ball Bearing
42. Output Shaft: 25T/5.9mm
43. Reduction Ratio: 1/275
44. Gear Backlash: =0.5°
45. Arm Backlash: 0°
46. Output Shaft Screw: M3X6
**Other parameters**

48. Motor Noise: 45±5dB
49. Servo No-Load Noise: 60±5dB
50. Waterproof Rating: IP54 (splash-proof)
51. Electronic Protection: 8 seconds lock-up
52. Temperature Protection: >70°C
53. Storage Temperature: -30°C~80°C
54. Operating Temperature: -20°C~60°C
###  Parts List

56. Metal Waterproof Servo - 20KG 180° x1
57. Metal Servo Arm x1
58. Servo Horn Accessories Pack x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/S/E/SER0063-1.jpg)