The Kpower MM3000 is a metal gear servo motor for RC models, robot joints, robotic arms and educational projects. It combines a DC brushed motor with potentiometer position sensing in a 60 × 30 × 60.5 mm housing weighing 188 g. Voltage-specific specifications list torque of 28 kg·cm at 4.8 V and 35 kg·cm at 6.0 V, helping buyers assess linkage and joint requirements.
Features
Metal gears driven by a DC brushed motor.
Potentiometer position sensor and two ball bearings (2BB).
Plastic and aluminum alloy case with an IP42 rating.
120° travel angle, with customization indicated.
25T, Ø8 mm horn spline.
PWM, TTL and RS-485 protocols listed.
Specifications
Voltage-Specific Performance
Parameter
At 4.8 V
At 6.0 V
Torque
28 kg·cm
35 kg·cm
Speed
0.20 s/60°
0.18 s/60°
Construction and Operating Parameters
Parameter
Value
Brand / model
Kpower MM3000
Stall torque, test voltage unspecified
30 kg; unit stated as kg, without a lever-arm length
Rated torque, test voltage unspecified
7.5 kg; unit stated as kg, without a lever-arm length
No-load speed, voltage and angular interval unspecified
0.18 s
Weight
188 g
Dimensions
60 × 30 × 60.5 mm
Travel angle range
120°; customizable
Operating voltage
4.8–8.4 V
Horn gear spline
25T, Ø8 mm
Gear material
Metal
Motor
DC brushed
Protocol
PWM / TTL / RS-485
No-load current
5000 mA
Position sensor
Potentiometer
Case material
Plastic + aluminum alloy
Ball bearings
2BB
Working frequency
50–333 Hz
Operating temperature
−10 to 50 °C
IP rating
IP42
Applications
RC vehicle linkages: Use for throttle control in 1/5-scale large RC cars, and for model actuation in 1/8- and 1/10-scale RC cars, Baja models, monster trucks and rock crawlers. The voltage-specific torque and speed values support actuator selection for the intended linkage.
Robot joints and robotic arms: Provide controlled joint or linkage movement using potentiometer position sensing and a 120° travel range.
Educational robot kits, STEM and maker intelligent-model projects: Demonstrate motor-driven mechanisms and positional control with a metal gear servo.
Industrial equipment mechanisms: Actuate positioning linkages using the specified travel range, horn spline and operating parameters.
The servo is labelled K-power MM3000 Standard Servo. The MM3000 is presented for robot joint applications.Kpower application collage spanning robotics, automation, RC models, drones, agriculture, and other industries
Features and Design
M Series graphic describing metal gears, response speed and potentiometer lifespanCustom servo development graphic covering mechanical design, protection, connectors, and protocols
Specifications and Performance
The MM3000 torque is specified as 28 kg·cm at 4.8 V. The MM3000 torque is specified as 35 kg·cm at 6.0 V.Generic servo reference listing rotation angles, speeds, voltage categories and analog and digital dead bands
Options and Model Comparison
Comparison table for MM0300, MM0600, MM0900 and MM1500 servos
Additional Product Details
Five servo horn shapes labelled Flat, Cross, Round, Star and SingleODM service workflow from needs assessment and product design to mass production
Setup and Use
Servo pulse-width reference mapping five input pulses to output shaft anglesCLS88WP 7.4 V torque, speed, and current chart with operating-duty zonesExploded servo assembly with component labels and a servo-selection checklist
Interfaces and Connections
Three-wire servo connector diagram identifying brown ground, red Vcc, and orange signal