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PTK 6820MG
Standard

PTK 6820MG

Compatible Hardware

*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-10-08
Identity
Brand PTK
Category Hobby
Performance
Torque
8.4V 374.95 oz-in
7.4V 305.51 oz-in
6.0V 249.97 oz-in
4.8V 208.31 oz-in Average
Speed
8.4V 0.09 sec/60°
7.4V 0.09 sec/60°
6.0V 0.10 sec/60°
4.8V 0.12 sec/60° Average
Physical
Weight 1.87 ozAbove Average
Dimensions L 1.43 in
W 0.80 in
H 1.61 in
Case Material Plastic
Drivetrain
Motor Type Cored
Gears Steel
Gear Spline/Teeth 25 T estimate
Rotation/Support Dual Bearings
Control & Signal
Modulation Digital
Rotational Range 180°
Pulse Cycle 3.003 ms
Pulse Width 500-2500 µs
Neutral Position 1500 µs
Dead Band 2 µs
Refresh Rate 333 Hz
Angle Sensor Potentiometer
Control System PWM
Programmable Yes
Electrical & Environment
Operating Voltage 4.8–8.4 V
Temperature -15–60 °C
Water Rating Waterproof
Connectivity
Connector JR (Universal)
Wire Length 250 mm

Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.

Class Comparison

TorqueAverage
Stronger than 48% of 1043 Digital Standard servos at 4.8V
SpeedAverage
Faster than 60% of 1041 Digital Standard servos at 4.8V
WeightAbove Average
Lighter than 79% of 1902 Digital Standard servos

Performance Analysis

Shaft Power 3.21–7.70 W
Power Density4.182 W/in³
More power-dense than 72% of 1759 Digital Standard servos
Torque Density3.9304 oz-in/g
Stronger than 59% of 1036 Digital Standard servos
Torque-to-Volume Ratio113.10 oz-in/in³
Denser torque than 48% of 1042 Digital Standard servos
Speed-to-Weight0.15723 (1/sec·g)
Faster than 75% of 1033 Digital Standard servos
Speed-Torque Trade-off25.00
Better balanced than 44% of 1031 Digital Standard servos
Torque Gain per Volt22.22%/V
More voltage-responsive (torque) than 90% of 850 Digital Standard servos
Speed Gain per Volt9.26%/V
More voltage-responsive (speed) than 14% of 871 Digital Standard servos
Voltage Range Width3.6 V
Wider voltage range than 81% of 1539 Digital Standard servos
Dead-Band-to-Pulse-Width Ratio0.0010
Finer dead band than 77% of 468 Digital Standard servos

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