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D107L125S-WP-170KV High-Performance Brushless Propulsion Motor

Designed for high-dynamic-response marine applications that demand exceptional speed and agility, the D107L125S-WP-170KV motor integrates an advanced 12-slot 10-pole (12N10P) magnetic circuit within a precision-engineered 107mm diameter structure. It achieves an optimal balance of high efficiency and power density, delivering up to 21 N·m of peak torque and 17.5 kW of robust power, with a maximum speed of 12,852 RPM. This motor serves as the ideal power core for electric surfboards (eFoil, Jet Surfboard), water bikes, small watercraft (SUP, Kayak), high-speed boats (Jetski), and various high-performance underwater thrusters and POD systems.

Rated IP68 for complete protection, it ensures reliable and durable operation in demanding above-water and submerged environments, making it a key component for enhancing vessel performance and reliability.

• Peak Power: 17.5 kW • Peak Torque: 21 N·m • Max Speed: 12,852 RPM
• Protection Rating: IP68 • Weight: 4.1 kg

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System Types:
All
Kv:
151-200
Controller Type:
Sensorless
Maximum Voltage:
60V
Maximum Continuous Current:
< 120A

D107L125S-WP-163Kv

Features

Specification

Dyno Tested Data

Dimension

Key Features

High-Strength Lightweight Housing: Features a CNC-machined black anodized aluminum alloy shell for structural robustness and excellent heat dissipation.
High-Efficiency Power Output: Optimized electromagnetic design and premium materials ensure efficient energy conversion with minimal losses.
Smooth & Quiet Operation: Low cogging torque design combined with a precision dynamically balanced rotor guarantees smooth operation across the entire speed range.
Flexible Shaft Options: Supports multiple customizable shaft outputs including keyway, splined, threaded, stepped, and tapped shafts for wide compatibility.
Broad Voltage Compatibility: Operates with 8 to 18S lithium battery configurations (25-75.6V), matching mainstream power systems.
Rugged Environmental Protection: IP68 rated for superior defense against dust and continuous water immersion, suitable for various demanding marine applications.

Typical Applications

Electric Hydrofoils (eFoil) / Water Bikes
Jet Surfboards
Underwater Thrusters
Small Boats / Stand-Up Paddleboards (SUP) / Kayaks
POD Drive Systems
Personal Watercraft (Jetski) / Speed Boats
Yacht Auxiliary Propulsion

Item	Specification
Model	D107L125-170
Working Voltage Range	8-18S
Max. Free Speed	12,852 rpm
Speed Constant (Kv)	173
Torque Constant (Kt)	0.064926 N·m/A
No Load Current (at 8.4V)	2.5 A
Max. Output Power	17.5 kW
Peak Torque (at 60% duty)	21 N·m
Peak Current	340 A
Rating Power	14.0 kW
Rating Torque	13.8 N·m
Max. Motor Efficiency	91.0%
Weight	4.1 kg
Configuration	12N/10P
Cooling Solution	Water Cooling + Air Cooling
Dimension (Dia. x Length)	D107 x L125 mm
Max. Working Temperature	120ºC
Insulation Voltage & Leak Current	AC500V / 10mA / 3s
Shaft Output	D15 x L30 mm
Lead Wires Extension	6AWG x 300mm
Connector	10.0mm Plug
Life Span	8,000 H

D107L125 - 170Kv at 40V
Item No.	C_Voltage (V)	C_Current (A)	C_Input Power(W)	M_Voltage (V)	M_Current (A)	M_Input Power(W)	M_Efficiency (%)	M_Speed (rpm)	M_Torque (N*m)	M_Output Power(W)
0	40.13	59.56	2386.41	29.58	50.49	2358.43	89.54	6547	3.08	2111.71
1	39.97	95.52	3814.97	29.26	83.32	3755.65	91.63	6200	5.30	3441.20
2	39.80	131.30	5222.93	29.02	117.49	5121.12	91.78	5890	7.62	4700.15
3	39.68	162.20	6432.55	28.86	147.90	6272.09	91.20	5643	9.68	5720.41
4	39.60	182.04	7204.36	28.77	167.91	6998.08	90.50	5498	11.00	6333.44
5	39.47	209.92	8280.14	28.65	196.55	8002.26	89.44	5290	12.92	7157.48
6	39.34	239.63	9418.70	28.54	227.57	9032.26	87.86	5079	14.92	7935.77
7	39.21	269.43	10552.27	28.43	259.47	10052.26	85.69	4867	16.90	8613.71