35kv D107L165 Waterproof & Watercooled Electric DC Motor 30kw

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35kv D107L165 Waterproof & Watercooled Electric DC Motor 30kw

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Product Description

Specifications & Basic Info

Model NO.

D107L165-WC-35Kv

Excitation Mode

Permanent Magnet

Function

Driving

Casing Protection

Closed Type

Number of Poles

Structure

Brushless

Certification

ISO9001

Housing

CNC Black Anodizing Aluminum

Configuration

12 Slots/10 Poles

Working Voltage

20s-52s (72V-220V)

Nominal Power

5000W~15kw

Rated Torque

35 N*M

Cooling Solution

Water Cooling + Air Cooling

Max Rpm

2500 Rpm

Weight

6.5kg

Life Span

8000 Hrs

Dimension

D107XL165 mm

★

Applications

Suitable for low rpm high torque gearless use, working with compatible propellers. High efficiency performance from 48V to 160V.

✔ Boat engine & Electric Outboard conversion
✔ Underwater thrusters
✔ Industrial driving systems

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Dyno Tester Report (D107L165 at 35Kv)

Item No.	C_Voltage (V)	C_Current (A)	C_Input (W)	M_Efficiency (%)	M_Speed (rpm)	M_Torque (N*m)	M_Output (W)
0	72.37	16.44	1178.19	90.00	2500	3.92	1028.38
1	72.33	27.43	1947.18	92.83	2421	6.98	1770.68
2	72.27	38.52	2693.70	93.23	2347	10.01	2461.78
3	72.23	49.68	3409.65	92.79	2281	13.00	3105.35
4	72.19	61.52	4131.62	91.95	2219	16.04	3727.38
5	72.16	73.84	4843.87	90.85	2160	19.08	4317.73
6	72.12	86.69	5560.91	89.55	2104	22.13	4877.38
7	72.08	99.26	6253.89	88.20	2051	25.08	5386.85

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Motor Variants Display

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Product Description

With an advanced 10-pole encapsulated core and 107mm diameter at 165mm length, this series of compact DC motors deliver high torque up to 55 N.M with a maximum output power of 30KW.

IP68 Waterproof Design: Tested according to ingress protection classes, these motors can operate permanently underwater or in dusty environments.

Key Features:
• Working voltage: 72V-220V DC
• Rated Power: 5000W-15KW
• Max Speed: 8000 rpm
• Rated Torque: 35N*m | Peak Torque: 60N*m
• Motor Efficiency: >88%

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Technical Parameters Comparison

Variants	D107L165-160	D107L165-140	D107L165-120	D107L165-106	D107L165-95	D107L165-85
Voltage range(LiPo)	6-14S	8-16S	8-18S	10-20S	12-24S	12-26S
Max Spin Speed(RPM)	9,408	9,408	9,072	8,904	9,567	9,282
kV (RPM/V)	160	140	120	106	95	85
Max Power (KW)	31.0	31.0	28.0	28.0	32.0	30.0
Peak Current (A)	1,000	835	715	625	555	500
Max Efficiency	91%	91%	92%	92%	93%	93%
Weight (kg)	6.2	6.4	6.3	6.3	6.1	6.1

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Technical Drawings & Wiring

Wiring Diagram

Frequently Asked Questions

What is the waterproof rating for this motor?

The motor is tested to IP68 standards, meaning it is fully waterproof and can be operated permanently underwater.

What voltage range does the D107L165 series support?

It supports a wide working voltage range from 20s to 52s LiPo, which translates to approximately 72V to 220V DC.

What are the primary applications for this motor?

It is ideal for high-torque, low-RPM gearless applications such as electric boat engines, outboard motor conversions, and underwater thrusters.

How is the motor cooled during operation?

The motor utilizes a dual cooling solution combining Water Cooling and Air Cooling for maximum heat dissipation efficiency.

What is the expected lifespan of the motor?

Under normal operating conditions, the motor has a designed life span of approximately 8,000 hours.

Is it possible to customize the shaft or sensors?

Yes, the motor supports custom shaft configurations (Keyway, Splined, Threaded, etc.) and can be equipped with Hall Sensors, Encoders, or run in Sensorless mode.