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D85L165 Water-Cooled 12s-28s 100kv 20kw Brushless DC Motor

The D85L165-WC-100KV is a high-performance water-cooled inrunner motor designed for efficient, high-torque applications in surfboards, jetboards, and pump drives. Operating on a wide 12-28S voltage range (38-117.6V), it delivers up to 20 kW of power and 30 N·m of peak torque. Its advanced water-cooling system and sensored design ensure precise control and thermal management, while the IP64 rating makes it suitable for integration into protected, watertight marine propulsion systems where sustained performance is critical.

• Peak Power: 20.0 kW • Peak Torque: 30.0 N·m • Max Speed: 11,172 RPM
• Protection Rating: IP68 • Weight: 3.9 kg

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System Types:
All
Kv:
100-150
Controller Type:
Sensorless
Maximum Voltage:
60V
Maximum Continuous Current:
< 120A

Brushless DC Motor Water-Cooled Motor BLDC Motor Surfboard Motor Inrunner Motor

Features

Specification

Dyno Tested Data

Dimension

Key Features

Efficient Wide-Voltage Operation: Supports 38-117.6V for flexible battery system integration.
Advanced Water-Cooling & Sensored: Ensures optimal thermal performance and provides precise feedback for controlled operation.
High Torque Output: Delivers strong low-end and mid-range thrust, ideal for pump drives and performance crafts.
Optimized for System Integration: IP64 protection is designed for reliable use within custom waterproof enclosures.

Item	Specification
Model	D85L165-100KV
Working Voltage Range	12-28S (38-117.6V)
Max. Free Speed	11,172 rpm
Speed Constant (Kv)	100
Torque Constant (Kt)	Not specified in provided data
No Load Current	Not specified in provided data
Max. Output Power	20 kW
Peak Torque	30 N·m
Peak Current	Not specified in provided data
Continuous Current	up to 125 A
Max. Motor Efficiency	>81% (Up to ~97% per test data)
Weight	3.9 kg
Configuration	12 Slots/10 Poles
Cooling Solution	Water Cooling
Dimension (Dia. x Length)	D85 x L165 mm
Max. Working Temperature	Not specified in provided data
Insulation Voltage & Leak Current	Not specified in provided data
Shaft Output	D12 mm
Lead Wires Extension	Not specified in provided data
Connector	Not specified in provided data
Life Span	10,000 H

Auto Testing at 100KV-60V-27N
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)
60.060001	56.349998	3381.330078	44.380001	49.720001	3336.360107	97.408295	5663	5.479995	3249.891602
59.959999	75	4492.899902	44.27	67.970001	4421.870117	96.032196	5421	7.479995	4246.418945
59.93	82.029999	4911.640137	44.290001	75.120003	4829.839844	95.531479	5347	8.239995	4614.017578
59.900002	90.43	5411.049805	44.279999	83.730003	5312.279785	94.972412	5248	9.179996	5045.200195
59.779999	110.940002	6624.060059	44.299999	105.400002	6479.72998	93.356819	5023	11.499995	6049.27002
59.73	124.839996	7446.580078	44.360001	120.580002	7265.100098	91.745918	4881	13.039995	6665.432617
59.650002	142.199997	8468.030273	44.439999	139.970001	8237.30957	89.87632	4713	14.999995	7403.390625
59.529999	168.759995	10024.61035	44.560001	170.960007	9700.099609	86.691826	4486	17.899996	8409.193359
59.450001	195.25	11131.09961	44.73	198.339996	10687.20996	83.760773	4429	19.299995	8951.689453
59.400002	198.869995	11779.62988	44.619999	207.059998	11321.33008	81.526291	4213	20.919994	9229.860352
59.240002	233.690002	13792.91992	44.630001	249.860001	13162.7002	74.774055	3916	23.999994	9842.285156
59.060001	274.140015	16093.63965	44.560001	298.980011	15227.79981	66.431274	3591	26.899996	10116.02148