
Servo drive KST CM5018WP
Voltage range: DC 4.8V-8.4V
USD · Volume pricing available
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Order the powerful KST CM5018WP servo drive for your RC crawler and heavy drone mechanisms!
Give your execution systems exceptional power and reliability. The KST CM5018WP servo is designed for the most demanding applications including 1/10 and 1/8 scale RC crawlers, as well as for controlling load drop systems and turning mechanisms on large FPV drones.
Featuring a powerful Coreless motor and reinforced gearbox, this servo provides a whopping 50 kg/cm of force needed to overcome the toughest obstacles and control heavy machinery. Full IP68 waterproofing allows it to be used in mud, snow and underwater, ensuring flawless performance in all conditions .
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Colossal torque. Develops a force of up to 50 kg/cm at a voltage of 8.4V for confident control of the heaviest mechanisms and overcoming any obstacles.
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Premium Coreless motor. The highly efficient coreless motor ensures smooth operation, fast response and minimal energy loss .
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Maximum reliability. Hardened steel gears and double ball bearings guarantee long service life and minimal backlash even under extreme loads .
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Full IP68 waterproof. The sealed CNC aluminum housing reliably protects the electronics from water, dirt, sand and snow, allowing you to use the servo in any conditions.
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Programmable functions. Supports parameter settings, including the “soft start” function, which allows you to precisely adapt its operation to specific tasks.
Operating principle and design
The KST CM5018WP servo drive is a standard size, based on advanced Coreless motor technology. Unlike traditional brushed motors, the coreless motor has significantly lower rotor inertia, which allows it to accelerate and decelerate almost instantly, providing exceptional positioning accuracy and fast response to commands. The high-precision digital controller processes the signal at a frequency of 333 Hz (1520 μs), ensuring smooth, jerk-free movements.
The rugged, CNC-machined, aircraft-grade aluminum body not only adds rigidity to the structure, but also effectively dissipates heat from the engine and electronics, maintaining consistent performance under prolonged use. The hardened steel gearbox with two precision ball bearings ensures durability and resistance to the shock loads inevitable in hard landings and off-road driving of drones. Full IP68 protection ensures sealing even when submerged in water.
Specifications and Compatibility
| Characteristics | 4.8 V | 6.0 V | 7.4 V | 8.4 V |
|---|---|---|---|---|
| Torque | 35 kg/cm | 40 kg/cm | 45 kg/cm | 50 kg/cm |
| Speed (60°) | 0.25 sec | 0.23 sec | 0.20 sec | 0.18 sec |
| Characteristics | Meaning |
|---|---|
| Dimensions (L×W×H) | 40.5 × 20.5 × 41.3 mm |
| Weight | 80 g |
| Operating voltage | 4.8 – 8.4 V |
| Engine type | Coreless DC |
| Operating frequency | 1520 µs / 333 Hz |
| Gear material | Hardened steel |
| Bearings | Double ball bearings |
| Housing material | Aluminum alloy (CNC) |
| Moisture protection | IP68 |
| Programming | Yes |
| Output shaft tooth type | 25T |
This servo is ideal for 1/10 and 1/8 scale RC crawlers, providing exceptional power to overcome any obstacle . Due to its characteristics, it will also perform well as a drive for load release systems and rotating mechanisms on large FPV drones. The ability to program parameters, including the “soft start” function, allows you to precisely adapt its operation to specific tasks.
Specifications
- Voltage range: DC 4.8V-8.4V
- Torque: 35 kgf.cm@4.8 V, 40 kgf.cm@6.0 V, 45 kgf.cm@7.4 V, 50 kgf.cm@8.4 V
- Speed: 0.25 seconds/60°@4.8V, 0.23 seconds/60°@6.0V, 0.20 seconds/60°@7.4V, 0.18
- seconds/60°@8.4V
- Operating frequency: 1520 µs/333 Hz
- Default stroke angle: ±50° =100° Total
- Temperature range: -10 +65
- Soft start: programmable
- Programmable: Yes
- Motor Type: Coreless DC Motor
- Gear set material: Metal gear
- Position sensor: Potentiometer
- Ball bearing: 2BB
- Waterproof: IP67
- Case dimensions: 40.5 * 20.5 * 41.3 mm ±0.2 mm
- Weight: 80g ± 10%.







