[HTG] KURO Motor Short Type for Airsoft Electric Guns

[Product Concept]
Easily upgrade the response and rate of fire of your foreign-made electric gun by replacing the standard motor.

[Optimized for 7.4V LiPo Batteries]
While many foreign-made motors are designed to perform optimally with 11.1V,
the "Gen Motor" is optimized for use with 7.4V LiPo batteries.

[High Speed, High Torque]
This is a balanced, high-power motor that isn't limited to being either high-speed or high-torque.
It's set to achieve a maximum firing rate of 20 rounds per second or less, which is the limit for electric guns with standard gear ratios and spring rates,
and is designed to maximize torque for improved response.

[High Quality Components]
The main components of the motor are made by Japanese manufacturers, pursuing high precision and high efficiency.

[Bearing Support]
The long shaft utilizes two high-precision bearings in the motor body and two in the motor tower to reduce friction loss.
*Short shaft motors have two bearings in the body.

[High Quality, Low Price]
High quality due to manufacturing by a specialized motor manufacturer, and low cost due to mass production!
By focusing on specific performance goals, we have achieved a low price.

[Sintered Steel Pinion Gear]
We deliberately chose a sintered steel pinion gear to achieve both wear resistance and strength, similar to machined steel pinions,
while offering the low aggressiveness towards bevel gears, good fit, and low noise of hard cast pinion gears.
Through actual machine testing, we selected a pinion gear with broad compatibility.
Additionally, it uses a common O-axis, making pinion replacement easy and allowing for the use of many commercially available parts.

*Please remove the protective film on the motor body before use.

Compatibility with foreign-made models and custom gears has been confirmed through actual machine testing.

Airsoft Guns:
DE Airsoft/WellPro/Golden Eagle/LCT/G&G/VFC/CYMA/S&T/SPECNA ARMS/E&C/ARCTURUS/C.A.T/DMT/etc.

Custom Parts:
CNC Production/SHS/etc.
Note: Compatibility with all models is not guaranteed.
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Actual Firing Test Results
Test Machine: DE Airsoft PDX
Chronograph: ACE TECH AC6000 BT
Power Supply: KIKUSUI PWR801
Output Setting: 8.4V 80A (assuming 7.4V LiPo battery)
Normal: 13.5rps → Gen Motor: 19.8rps
The rate of fire has significantly increased.
Torque and RPM are set to achieve approximately 20 rounds per second with standard 18:1 gears,
so even with a standard gearbox, it delivers performance comparable to a custom gun.
*Values may vary slightly when using a battery.
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Custom Gun Test Results
TM M4A1 Custom
Metal Bearings
CNC 13:1 Gears (3-tooth sector cut)
Electronic Trigger: Jefftron Leviathan
Hitec Li-Po 7.4V 1200mAh 30C
Muzzle Velocity: 80m/s (0.64J) @ 0.2g

Rate of Fire (ROF)
Company A: 19.2 rps
Company B: 19.6 rps
Gen Motor: 20.8 rps

Semi-Auto Cycle Time (Response)
Company A: 54ms
Company B: 50ms
Gen Motor: 49ms

The motor provides sufficient torque and RPM for use in custom guns.
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Performance Specifications (assuming 7.4V LiPo battery use)

No-load Speed: 27000rpm
No-load Current: 2.6A

Stall Torque: 2310g･cm
Stall Current: 79A
Maximum Efficiency: 68.8%
Speed: 22900rpm
Torque: 343g･cm
Current: 13.9A
Output: 81W

Maximum Output:
Efficiency: 46.1%
Speed: 12975rpm
Torque: 1155g･cm
Current: 41A
Output: 157W
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[Cautions]
・Disassembly of the electric gun is required for installation.
・While developed for broad compatibility, gear noise may occur depending on the gun.
Replacement of the bevel gear or shim adjustment may be necessary.
・If the included motor tower spring is not suitable, replace it with the original one.
・For short-shaft motors in models that use special springs (such as G36 and Steyr), please use the spring provided with the main unit.
・For models with small motor grip holes (e.g., G&G), the hole may need to be enlarged to allow the pinion gear to pass through.
・If the muzzle velocity decreases during full-auto firing compared to semi-auto, adjustments within the gearbox may be necessary.