Hitec HS-645MG Standard Analogue Cored Servo 55.2g 9.6kg/0.2s 4.8V

We will be attending Weston Park 2026! If you wish to make a click and collect order and want to collect it there in your order comments put "collect from Weston Park"

Hitec HS-645MG Standard Analogue Cored Servo 55.2g 9.6kg/0.2s 4.8V - 6.0V 2214270

Key Features

Top selling high torque metal gear servo
Strong three-pole ferrite motor
Heavy duty metal gear train featuring Hitec's revolutionary metal/plastic first gear (MP Gear)
Dual ball bearing-supported output shaft

Product Description

The powerful HS-645MG is one of Hitec's most popular servos. Its the perfect choice for those larger sport planes or monster trucks and buggies requiring a durable high torque servo. Featuring our unique M/P and metal gear train technology, the HS-645MG offers one of the strongest gear trains available in any servo.

Servo Technical Specifications

Weights & Dimensions

Weight	55.2g	1.95oz
Shipping Weight	0.08kg	0.18lbs

Product Height	38mm	1.48in
Product Width	20mm	.77in
Product Length	41mm	1.59in


Application	Array
Servo Size	Standard

HS-645MG Servo Specifications

Performance Specifications
Operating Voltage Range (Volts DC)	4.8V ~ 6.0V
Speed (Second @ 60°)	0.24 ~ 0.20
Maximum Torque Range oz. / in.	107 ~ 133
Maximum Torque Range kg. / cm.	7.7 ~ 9.6
Current Draw at Idle	9.1 mA
No Load Operating Current Draw	450 mA
Stall Current Draw	2,500 mA
Dead Band Width	8 µs
Physical Specifications
Dimensions (Inches)	1.59 x 0.77 x 1.48
Dimensions (Metric)	40.6 x 19.8 x 37.8
Weight (Ounces)	1.94
Weight (Gram)	55.2
Circuit Type	HT7003 Analog SMT
Motor Type	3 Pole Metal Brush Ferrite
Gear Material	Metal
Bearing Type	Dual Ball Bearing
Output Shaft (type / Ømm)	Standard 24
Case Material	Plastic
Dust / Water Resistance	N / A
Connector Gauge (AWG) / Strand Count	22 / 60
Radio Control Applications
Parkflyer	N / A
Sport Plane	12-15 lbs.
Sailplane	2 meters and up
3D Performance	12-15 lbs.
Scale	12-15 lbs.
Electric Helicopter	N / A
Gas Helicopter	N / A
On Road	1/10th
Monster Truck	1/10th
Buggies	1/10th
Truggies	1/10th
Short Course / Truck	1/10th
Crawlers	1/12th
Sail Boat	=>1M+ & Scale
Power Boat	1/10th

Hello, I have ordered one of your products yesterday morning and I received it today, so I have to say I ...

Rated by Slawomir Cuper

Initially I bought two of these servos three years ago following good advice from the helpful staff at Leeds Model ...

Rated by Craig Dickson Main Office

iv got these servo on a yak 54 70"wingspan,20cc petrol engine,theses servos have been going strong for 4 years flying ...

Rated by Mark Bates

Manufacturer Info

Hitec Homepage

Other products