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Scorpion Brushless Motors HK-50mm Series

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Select Motor Size: HK-5020 | HK-5025 | HK-5035

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Scorpion HK Series Brushless Motors are built from the best materials available, and are designed to provide both quality and performance at an affordable price. Scorpion starts with high quality aluminum alloy parts that are produced on the latest CNC milling machines. These parts are then gold Electro-Plated to provide a beautiful, long-lasting finish. The stators are made with 0.2mm laminations to give maximum efficiency, and minimum Eddy current losses. The stators are epoxy coated to prevent shorts, and are wound with wire that is rated at 180 degrees C (356 F). The magnets used in Scorpion Motors are rated for operation at 200 degrees C (392 F), making a motor that is virtually impossible to burn up in normal use.

Scorpion Motors are built to last, and are backed with a 2-Year warranty against defects in materials or workmanship. However, due to the high RPM of these motors, and the fact that we cannot control the installation and setup, the bearings are not covered by the 2-Year warranty, nor is any subsequent damage caused to the motor by a bearing failure. Bearings are a normal wear item, and as such, need to be maintained and changed periodically. For maximum life, make sure that a sufficient gap is left between the pinion and main gear during motor installation to avoid binding, and put a small drop of oil on each bearing every 5-6 flights. It is the responsibility of the pilot to ensure that the bearings are maintained properly.

The Scorpion Motor Bearing Lubrication Kit is now available for maintaining the bearings in your helicopter motor. To view this product, please check out the Motor Lubrication Kit.

Click on image for a larger version.	Scorpion HK-5020-450 (Top | HK-5025 | HK-5035) Overview Tech Drawing HK-5020-450 The Scorpion HK-5020-450 motor is designed for 700 class Electric Helicopters, and for people that want to convert their .90 size glow helicopter to electric power. This motor has a maximum continuous power rating of 3770 watts at 85 amps, and a peak power rating of 5320 watts at 120 amps! The larger diameter 50mm stator allows these motors to produce insane amounts of torque. To handle all of this power, the Scorpion HK-5020-450 motor features a massive 10mm main shaft that is precision ground down to 6mm at the pinion end. This allows the use of over-size main bearings, and still be able to fit the stock 700 class pinion gears that have a 6mm bore. Motor Kv Imax Pmax HK-5020-450: 450Kv 85A 3770W   Click on image for a larger version. Stator Diameter 50 mm Stator Thickness 20 mm No. of Stator Arms 12 No. of Magnet Poles 10 Motor Wind 16 Turn Delta Motor Wire 16-Strand 0.33 mm Motor Kv 450 RPM / Volt No-Load Current (Io) 1.21 A @ 10V Motor Resistance (Rm) 0.019 Ohms Max Continuous Current 85 Amps Max Continuous Power 3770 Watts Weight 445 grams Outside Diameter 59.8 mm Shaft Diameter 5.98 mm Body Length 51 mm Overall Shaft Length 84.6 mm £ 150.00
Click on image for a larger version.	Scorpion HK-5025-440 (Top | HK-5020 | HK-5035) Overview Tech Drawing HK-5025-440 The Scorpion HK-5025-440 motor is mainly designed for Logo 600 SE and also for people that want to convert their .90 size glow helicopter to electric power. This motor has a maximum continuous power rating of 4200 watts at 95 amps, and a peak power rating of 5700 watts at 130 amps! The larger diameter 50mm stator allows these motors to produce insane amounts of torque. Motor Kv Imax Pmax HK-5025-440: 440Kv 95A 4200W   Click on image for a larger version. Stator Diameter 50 mm Stator Thickness 25 mm No. of Stator Arms 12 No. of Magnet Poles 10 Motor Wind 12 Turn Delta Motor Wire 21-Strand 0.33 mm Motor Kv 440 RPM / Volt No-Load Current (Io) 1.69 A @ 10V Motor Resistance (Rm) 0.016 Ohms Max Continuous Current 95 Amps Max Continuous Power 4200 Watts Weight 546 grams Outside Diameter 61 mm Shaft Diameter 5.98 mm Body Length 56 mm Overall Shaft Length 89.6 mm £ 172.80
Click on image for a larger version.	Scorpion HK-5035 (Top | HK-5020 | HK-5025) Overview HK-5035-410 HK-5035-500 The Scorpion HK-5035 series motors will provide all the power you need for the larger 800 class electric helicopters, those massive electric powered scale projects, or for your workhorse camera platform helicopters that need to be able to lift heavy weights reliably. Motor Kv Imax Pmax HK-5035-410: 410Kv 105A 4800W   HK-5035-500: 500Kv 120A 5400W   Stator Diameter 50 mm Stator Thickness 35 mm No. of Stator Arms 12 No. of Magnet Poles 10 Motor Wind 9 Turn Delta Motor Wire 24-Strand 0.33 mm Motor Kv 410 RPM / Volt No-Load Current (Io) 2.12A @ 10V Motor Resistance (Rm) 0.014 Ohms Max Continuous Current 105 Amps Max Continuous Power 4800 Watts Weight 670 grams Outside Diameter 61 mm Shaft Diameter 5.98 mm Body Length 66 mm Overall Shaft Length 116.5 mm Click on image for a larger version. Technical Drawing This motor has a maximum continuous power rating of 5400 watts at 120 amps, and a peak power rating of 7100 watts at 160 amps! That is equal to 9-1/2 Horsepower Peak! The larger diameter 50mm stator allows these motors to produce insane amounts of torque. To handle all of this power, the Scorpion HK-5035 series motors feature a massive 10mm main shaft that is precision ground down to 8mm at the pinion end. This allows the use of over-size main bearings, and still be able to fit the stock 800 class pinion gears that have a 8mm bore. Stator Diameter 50 mm Stator Thickness 35 mm No. of Stator Arms 12 No. of Magnet Poles 10 Motor Wind 9 Turn Delta Motor Wire 26-Strand 0.33 mm Motor Kv 500 RPM / Volt No-Load Current (Io) 1.03A @ 10V Motor Resistance (Rm) 0.012 Ohms Max Continuous Current 120 Amps Max Continuous Power 5400 Watts Weight 670 grams Outside Diameter 61 mm Shaft Diameter 7.98 mm Body Length 66 mm Overall Shaft Length 100.75 mm Click on image for a larger version. Technical Drawing £ 204.00 Select wind: HK-5035-500 (500Kv) : no stock HK-5035-410 (410Kv) : no stock