Kpower DHV825 Digital Coreless Servo Motor, PWM/TTL/RS485, for RC Aircraft and Robotic Arms

Kpower

$127.00 USD

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Version DHV825

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Overview

The Kpower DHV825 is a digital coreless servo motor for remote-control airplanes, gliders, drones and robotic arms. It combines high-precision steel gears with a 7075 aluminum case and lists PWM, TTL and RS485 control interfaces. Its 120° ± 3° travel and voltage-specific speed and stall-torque specifications help buyers assess motion requirements, while the 40 × 20 × 39 mm dimensions support installation planning.

Features

Digital high-voltage servo with a coreless motor.
High-precision metal gears, specified as steel.
7075 aluminum case.
PWM, TTL and RS485 control interfaces.
3 μs dead band and 50–333 Hz refresh frequency.

Specifications

Parameter	Value
Brand	Kpower
Model / version	DHV825
Servo type	Digital, high-voltage
Product designation	20KG; no torque-length unit or test condition specified for this designation
Gear material	Steel
Signal range	900–2100 μs
Case material	7075 aluminum
Motor type	Coreless
Control interfaces	PWM, TTL, RS485
Operating temperature	−10 °C to +50 °C
Dead band	3 μs
Travel angle	120° ± 3°
Refresh frequency	50–333 Hz
Minimum operating voltage	4.8 V
Dimensions	40 × 20 × 39 mm
Weight	72 g ± 1 g
Wire gauge and insulation	22 AWG, PVC

Performance by Supply Voltage

Parameter	At 6.0 V	At 7.4 V
No-load speed	0.12 ± 0.01 s/60°	0.11 ± 0.01 s/60°
Stall torque	18.0 ± 0.20 kg·cm	22.0 ± 0.20 kg·cm
No-load current	700 ± 30 mA	850 ± 30 mA
Stall current	3000 ± 40 mA	3500 ± 50 mA

Applications

RC airplane and glider control: Position control linkages through 120° ± 3° of travel, using the voltage-specific no-load speed figures to assess movement timing.
Drone mechanism actuation: Provide controlled angular movement for onboard mechanisms where the servo's dimensions, travel and control interface meet the installation requirements.
Robotic-arm linkage positioning: Use the specified travel, 3 μs dead band and voltage-specific stall-torque figures to assess a linkage's positioning and load requirements.