Product overview
The Scorpion HKII-4225-610KV Limited Edition is a brushless propulsion motor for 600 class electric helicopters using 12-cell Li-Po power. Its winding uses a single strand of 1.4 mm wire in a 5T Delta arrangement, with a motor constant of 610KV RPM/Volt. Continuous input limits are 80 Amps and 3550 Watts. Peak input limits rise to 130 Amps and 5770 Watts for five seconds, making the duration qualification essential when sizing the electrical installation. Motor timing is 5deg and drive frequency is 8kHz.
Mechanical integration requires room for a 52.3 mm outside diameter and 51.50 mm body length, together with the 91.5 mm overall shaft length. The shaft diameter is 5.98 mm, mounting bolt spacing is 30mm, and motor weight is 393 Grams. Construction combines CNC-machined aluminum alloy parts with gold electroplating and epoxy-coated stators using 0.2mm laminations. The winding wire carries a 180 degrees C rating, while the magnets are rated for operation at 200 degrees C; these ratings apply to the individual components.
The supplied product is a motor component for helicopter integration. Gold connectors are neither soldered nor included, and weight including packaging is 660g. Installation requires sufficient clearance between the pinion and main gear to prevent binding. Bearings require periodic maintenance and replacement, with a small drop of oil on each bearing every 5-6 flights. The two-year warranty covers defects in materials or workmanship but excludes the bearings and any subsequent motor damage caused by bearing failure.
Specifications
| Specification | Value & conditions |
|---|---|
| Stator Diameter | 42 mm (1.65 in) |
| Stator Thickness | 25 mm (0.98 in) |
| No. of Stator Arms | 12 |
| No. of Stator Poles | 10 |
| Motor Wind | 5T Delta |
| Motor Wire | 1-Strand 1.4 mm |
| Motor Kv | 610KV RPM/Volt |
| No-Load Current (Io/10V) | 2.33 AmpsAt 10V. |
| Motor Resistance (RM) | 0.013 Ohms |
| Max Continuous Current | 80 AmpsContinuous operation. |
| Max Continuous Power | 3550 WattsContinuous operation. |
| Weight | 393 Grams (13.77 oz) |
| Outside Diameter | 52.3 mm (2.06 in) |
| Shaft Diameter | 5.98 mm (0.24 in) |
| Body Length | 51.50 mm (2.03 in) |
| Overall Shaft Length | 91.5 mm (3.60 in) |
| Max Lipo Cell | 12sLi-Po battery configuration. |
| Max Peak Current | 130 Amps (5 seconds)5 seconds. |
| Max Peak Power | 5770 Watts (5 seconds)5 seconds. |
| Motor Timing | 5deg |
| Drive Frequency | 8kHz |
| HK Patent No. | HK1141674 |
| China Patent No. | ZL2010 2 0298704.9 |
| Taiwan Patent No. | M399539 |
| Product and intended application | Scorpion HKII-4225-610KV Limited Edition helicopter motor600 class helicopters running on 12-cell Li-Po power. |
| Mounting bolt spacing | 30mmMotor mounting. |
| Construction and component temperature ratings | CNC-machined, gold-electroplated aluminum alloy parts; epoxy-coated stators with 0.2mm laminations; wire rated at 180 degrees C (356 F); magnets rated for operation at 200 degrees C (392 F)Wire and magnet temperature ratings apply to their respective components. |
| Connectors and packaged weight | Gold connectors are not soldered nor included; weight including packaging: 660gSupplied configuration; weight includes packaging. |
| Warranty | 2-Year warranty against defects in materials or workmanship, excluding bearings and subsequent motor damage caused by bearing failureDefects in materials or workmanship; bearings and subsequent damage caused by bearing failure are excluded. |
| Gear clearance and bearing maintenance | Leave sufficient pinion-to-main-gear clearance to avoid binding; oil each bearing with a small drop every 5-6 flights; maintain and replace bearings periodicallyDuring motor installation and every 5-6 flights. |
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