Brushless Outrunner Motors

Scorpion Power Systems specializes in the design, development and production of premium Brushless Outrunner Motors. Each part of a Scorpion Motors is designed from the ground up by experienced and passionate engineers with the best quality components available to provide power, efficiency, and reliability which is a grade above the rest!

Our motor magnets are custom manufactured from a select premium supplier to be able to withstand the high temperatures associated with high performance applications. The copper wire we use to wind the stators is covered in an imported enamel coating which is rated to 250+ degrees C (482 F), so it can take the heat and keep on performing. Our premium imported 0.2mm Stator sheets provide the highest torque per amp ratios, and best top end performance capabilities. Our imported bearings are of the best quality providing long lasting and reliable run time operation. For everything else, we utilize aviation grade 7075 aluminum and other materials that are CNC machined in-house and anodized for a fit and finish that is second to none.

With a motor and service of this caliber, you would expect to pay an ultra-premium price, but with our efficient manufacturing procedures and streamlined distribution chain, Scorpion motors retail for very affordable prices making them one of the best overall values on the market today. Combine that with our fast production times, customization options, and fantastic customer support, the value of choosing Scorpion Power System will be worth it everytime. 

If you want to get ahead of your competitors you will need the best quality motor available at an affordable price. The next time you need a brushless motor, do yourself a favor and buy a Scorpion Brushless motor. You will be glad you did!



Want your entire power system to be as powerful and reliable as the motor is? Combine your Scorpion Motor with one of our Scorpion ESCs to get a matched power system package that provides the power, efficiency, and reliability that your aircraft needs.



 

A-Series / Airplane Propulsion

The Scorpion A-series Motors were designed for primary use in Aerobatic / UAV Airplanes with direct drive medium speed propellers. The designs focus on amazing peak effiicieny, phenominal power, and good torque. 

The motor designs come with rear cross mount, and have options for convinient front side propeller mounting. 

Series Power (w) Weight (g) Motor Outer Diameter Approximate
MAX RPM (+/-)
Pole Count Size Equivalent Class
A-30 500 - 962 134 - 152 36.6 15,000 14P 30E - 32E
A-42 2000 - 3108  288 - 400 50.7 13,500 14P 70E-90E / 15cc - 25cc
A-50 3200 - 4000 523 - 550 59.3 11,000 14P 30cc - 35cc
A-55 3552 - 4662 622 - 655 65 10,500 14P 35cc - 40cc
A-65 4218 - 7200 998 - 1114 78.5 10,000 14P 60cc - 76cc
A-74 4884 - 10000 1300 - 1815 86.8 9,000 28P 85cc - 176cc

 

HK-Series / Helicopter and
High-Speed UAV
Propulsion

The Scorpion HK-series Motors were designed for primary use in Helicopters with gear reduction units. They also find use in UAV Airplane application which require Ultra High Speed Propellers. The designs focus on Maximum Power Capability at high RPM, High Effiicieny, High Temperature Resistance, and best torque per amps. 

The motor designs come stock with rear mounted shaft convinient for pinion mounting, or can be used with propeller adaptor. 

HK - HKIV Motors (2010 - 2022)

Series Power (w) Weight (g) Motor Outer Diameter Approximate
MAX RPM (+/-)
Pole Count Rotor Size / Size Class
HKII-22 130 - 525 34 - 81 27.9 55,000 6P 200mm - 350mm blade size
HK-25 720-1040 104 31.5 59,000 10P 350mm rotor blade
HK-30 650 - 1600 119 - 153 37.5 25,000 10P 380mm - 420mm blade size
HK-32 1770 - 2000 239 40.9 40,500 6P 420mm - 480mm blade size
HK-35 2900 - 4150 365 45 25,500 10P 600mm - 650mm blade size
HK-40 1900 - 2440 215 - 240 48.9 36,500 10P 480mm rotor blade
HKIV-40 1731 - 5328 310 - 456 49.5 28,000 10P 520mm - 700mm blade size /
High Speed UAV
HKII-42 3550-7100 393 - 522 52.3 30,500 10P 600mm - 700mm rotor blade /
Battle Bot 
HK-45 6200 - 15,000 660 - 719 56.7 30,000 10P 700 - 800 size Speed Heli /
Other
HKII-45 4403 - 11,000 515 - 588 56.9 27,000 10P 690mm - 800mm blade size
HKIII-50 3770 - 14,800 501 - 839 62.1 35,600 10P 700mm - 800mm blade size /
Battle Bots / Other
HKIV-50 5128 - 7104 785 62.2 25,000 10P 800mm - 850mm blade size
HKII-70 10,000 - 15,000 1915 82.4 16,500 10P 1000+mm blade size /
Battle Bots / Other
HK5 - Series (2023 - Present)
Series Power (w) Weight (g) Motor Outer Diameter Approximate
MAX RPM (+/-)
Pole Count Rotor Size / Size Class
HK5-40 1900 - 2664 326 49.5 28,000 10P 500mm - 520mm blade size
HK5-50 5772 - 11,500 598 62.8 27,000 10P 690mm - 800mm blade size

 


IM - Series / Industrial Multirotor Propulsion

The Scorpion IM-series Motors were designed for primary use in Industrial Multirotors with low RPM, High Efficiency propellers. The design focuses on high peak efficiency, lightweight, and high thrust capabilities. 

The designs are suited for propellers mounting directly to the motor rotor face. 

Series Power (w) Weight (g) Motor Outer Diameter Approximate
MAX RPM (+/-)
Pole Count Peak Thrust (KG) Recommended
Prop Size (")
Recommended
MTOW Thrust per Arm (KG)
IM-8008 1554 279 87.20 5,000 40P 9.5 27"-28" 2.5 - 4.75
IM-8012 3108  377 87.20 5,750 40P 14.15 27"-28" 3.68 - 7.0
IM-8016 3552 519 87.20 5,000 40P 16.5 29" - 30" 4.34 - 8.25