China Standard 96V 50kv Waterproof & Water-Cooled Brushless DC Motor 10kw vacuum pump distributors

Product Description


Electric Propulsion for various watercrafts
1. Underwater thruster
2. Electric Boat Engine
3. POD
4. Electric Outboard Motor

Either work with propeller directly or as an integrated part in
a airtight cabin of trolling motor/outboard motor / POD


Customize per your request


Product Description


With an advanced 10-pole encapsulated core and 107mm diameter,

this compact DC motors weighting 7.65kg ONLY, while deliver high torque up to 65N*M & output power up to 38KW at high voltage.


Thanks to the unique sealing configuration design, these motors

are tested waterproof IP68 according to ingress protection class,

and can be operated permanently underwater.

1. Working voltage: 18-38S(75.6-159.6V)
2. Rated Power: 10kw~20kw
3. CHINAMFG Power: 38Kw
4. Speed: 4230~8937 rpm
5. Rated Torque: 40N*m
6. CHINAMFG Torque: 64N*m
7. Motor Efficiency: >90%



D107L125: waterproof version, water-cooled version
D107L165: waterproof version, water-cooled version
D107L200: Waterproof +water-cooled version


Product Parameters

Variants D107L200-135 D107L200-112 D107L200-97 D107L200-84 D107L200-68 D107L200-56
Winding Turn & Connection 2.5T 3T 3.5T 4T 5T 6T 
Voltage Range(LiPo) 10-16S (32-67.2V) 10-20S(32-84V) 12-22S(36-92.4V) 12-26S (36-109.2V) 16-32S (67.2-134.4V) 18-38S(75.6-159.6V)
Max Spin Speed(RPM) 9,070  9,408  9,013  9,172  9,139  8,937 
Speed Constance kV(RPM/V)  135 112 97 84 68 56
Torque Constance Kt(N*M/A) 0.0801 0.0962 0.1123 0.1396 0.1675 0.1982
No Loading Current at 8.4V(A) 6.5  6.0  5.4  4.2  3.5  3.0 
Max Power (KW)  38.9 38.8 38.6 38 38 38.2
Peak Current (A)  1,700  1,400  1,200  990  820  700 
Max Efficiency  92.00% 92.00% 91.00% 91.00% 91.00% 91.00%
Max Torque at 60%(N*M) 64.0  64.0  65.5  65.5  65.0  65.0 
Continuous Working Current(A) 490  410  352  285  235  200 
Weight (kg) 7.65
Construction 12 Slots/10 Poles
Cooling Solution Water cooling
Max Working Temperature 120ºC
Dimension D118*L200
Insulation Voltage & Leak Current AC500V/10MA/3S
Working Life 8,000H

Dyno Tester Report


D107L200-WCP at 56Kv-48VDC
Item No. C_Voltage
C_Input Power(W) M_Voltage
M_Input Power(W) M_Efficiency
M_Output Power(W) Synthesis Efficiency
0 48.900002 27.92 1343.57176 36.66 22.82 1310.199951 91.381172 2305 4.959995 1197.276123 89.142738
1 48.779999 51.970001 2511.699951 36.330002 43.299999 2471.449951 93.268585 2188 10.57196 2305.086426 91.773956
2 48.669998 74.919998 3593.615717 36.119999 63.560001 3540.340088 92.678978 2086 15.019995 3281.15 0571 91.35715
3 48.580002 98.559998 4660.995714 36.02 84.459999 4591.52002 91.185081 1993 20.57196 4186.78125 89.826004
4 48.48 124 5745.72998 36.119999 105.279999 5638.399902 90.057182 1926 25.159994 5074.683105 88.320946
5 48.400002 148.070007 6688.100098 35.93 126.129997 6564.899902 87.220505 1825 29.959995 5725.938965 85.613838
6 48.330002 176.05715 7725.725715 35.939999 148.139999 7564.299805 84.657129 1745 35.019997 6399.611816 82.835152
7 48.25 204.5 8771.959961 35.959999 170.649994 8558.120117 81.569527 1664 40.57194 6980.817871 79.581047
8 48.169998 231.130005 9822.879883 35.959999 193.479996 9561.080078 77.890846 1581 44.979996 7447.206543 75.814903
9 48.060001 256.76001 10965.37012 35.880001 218.660004 10658.5 0571 73.187912 1488 50.57194 7800.740723 71.139786
10 47.950001 281.700012 12203.32031 35.66 248.550003 11841.16992 67.101357 1380 54.979996 7945.585449 65.110031

Drawing Dimension

Wiring Diagram

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Application: Boat Engine / Marine Engine / Underwater Thruster
Operating Speed: Adjust Speed
Excitation Mode: Permanent Magnet
US$ 980/Piece
1 Piece(Min.Order)


Order Sample

Per motor drawing


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Shipping Cost:

Estimated freight per unit.

about shipping cost and estimated delivery time.
Payment Method:


Initial Payment

Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

dc motor

In which applications are DC motors commonly used, and what advantages do they offer?

DC (Direct Current) motors are widely used in various applications due to their versatility, controllability, and specific advantages they offer. Here’s a detailed explanation of the common applications of DC motors and the advantages they provide:

1. Robotics:

DC motors are extensively used in robotics for precise control of movement and manipulation. They provide high torque and speed control, allowing robots to perform tasks with accuracy and efficiency. DC motors enable robotic arms, grippers, and mobile robots to execute complex motions and interact with their environment effectively.

2. Industrial Automation:

In industrial automation, DC motors are employed in conveyors, actuators, and positioning systems. The ability to control the motor speed and torque makes them suitable for applications such as material handling, assembly lines, and CNC machines. DC motors offer precise control over acceleration, deceleration, and positioning, enhancing overall productivity and efficiency in manufacturing processes.

3. Electric Vehicles:

DC motors have been widely used in electric vehicles (EVs) for many years. They are commonly found in electric cars, motorcycles, and scooters. DC motors provide high torque from standstill, enabling efficient acceleration and smooth operation. They also offer regenerative braking capabilities, which help in energy recovery during deceleration, thereby increasing the vehicle’s overall efficiency.

4. Appliances:

DC motors are utilized in various household appliances, including fans, blenders, vacuum cleaners, and refrigerators. Their controllable speed and torque allow for efficient operation and improved energy consumption. In appliances where variable speed control is required, such as ceiling fans or blender settings, DC motors offer precise adjustment options to meet different user preferences.

5. Renewable Energy Systems:

DC motors play a crucial role in renewable energy systems, such as wind turbines and solar tracking systems. They convert the rotational energy from wind or sunlight into electrical energy. DC motors enable precise tracking of the sun’s movement for optimal solar energy collection and efficient conversion of wind energy into electricity.

6. Advantages of DC Motors:

DC motors offer several advantages that make them suitable for various applications:

  • Precise Speed Control: DC motors provide accurate and adjustable speed control, allowing for precise regulation of motor output.
  • High Starting Torque: DC motors deliver high torque at startup, making them suitable for applications requiring quick acceleration or heavy loads.
  • Controllability: DC motors can be easily controlled using voltage regulation, current limiting, and feedback control techniques.
  • Efficiency: DC motors have high efficiency, especially when operating at lower speeds.
  • Reliability: DC motors are known for their robustness and reliability, requiring minimal maintenance.
  • Compact Size: DC motors are available in various sizes and can be designed compactly, making them suitable for applications with space constraints.

These advantages make DC motors an attractive choice in various industries and applications where precise control, high starting torque, and reliability are essential.

dc motor

What role does commutation play in the operation of a DC motor?

In the operation of a DC (Direct Current) motor, commutation plays a crucial role in ensuring the continuous rotation of the motor and the conversion of electrical energy into mechanical motion. It is the process by which the direction of the current in the armature winding is periodically reversed to maintain a constant torque and facilitate the rotation of the motor. Here’s a detailed explanation of the role of commutation in the operation of a DC motor:

Commutation is necessary in a DC motor because the magnetic field generated by the armature winding needs to be constantly aligned with the stator’s magnetic field for efficient torque production. The stator of a DC motor typically consists of permanent magnets or electromagnets that create a fixed magnetic field. The armature winding, located on the rotor, produces a magnetic field that interacts with the stator’s field to generate torque.

The commutation process is achieved through the use of a commutator and brushes. The commutator is a cylindrical ring with multiple segments, while the brushes are conductive contacts that make physical contact with the commutator segments. The armature winding is connected to the commutator, and as the rotor spins, the brushes maintain contact with different segments.

As the rotor rotates, the commutator and brushes ensure that the direction of the current in the armature winding is reversed at specific intervals. This reversal of current flow is necessary to maintain a consistent torque in the same rotational direction. Without commutation, the torque generated by the motor would fluctuate in both magnitude and direction, leading to instability and erratic motor behavior.

The commutation process involves two stages: mechanical commutation and electrical commutation.

1. Mechanical Commutation: As the rotor rotates, the brushes make contact with different segments of the commutator. The segments are insulated from each other to prevent short circuits. When the brushes move from one segment to another, the current flowing through the armature winding is switched to a different coil or set of coils. This mechanical switching ensures that the magnetic fields produced by the winding are properly aligned with the stator’s field, resulting in continuous torque production.

2. Electrical Commutation: The reversal of current in the armature winding is achieved through electrical commutation. When the brushes make contact with a new commutator segment, the current flow in the winding is redirected to maintain the desired torque direction. The timing and sequence of the current reversal are critical to ensure smooth and efficient motor operation.

The commutation process in a DC motor is a dynamic and continuous operation. It allows for the conversion of electrical energy into mechanical motion by providing a consistent torque output. The efficiency and performance of the motor are greatly influenced by the quality and effectiveness of the commutation process.

In summary, commutation plays a vital role in the operation of a DC motor by ensuring the continuous rotation of the motor and the production of consistent torque. It involves the mechanical and electrical switching of the current direction in the armature winding, facilitated by the commutator and brushes.

dc motor

How does the size and power rating of a DC motor affect its suitability for different tasks?

The size and power rating of a DC (Direct Current) motor play crucial roles in determining its suitability for different tasks and applications. The size and power rating directly impact the motor’s performance characteristics, including its torque output, speed range, efficiency, and overall capabilities. Here’s a detailed explanation of how the size and power rating of a DC motor affect its suitability for different tasks:

Size of DC Motor:

The size of a DC motor refers to its physical dimensions, including its diameter, length, and overall volume. The size of the motor influences its ability to fit into specific spaces or applications with space constraints. Here are some key considerations regarding the size of a DC motor:

1. Space Limitations: In applications where space is limited, such as small robotic systems or compact machinery, smaller-sized DC motors are preferred. These motors provide a more convenient and efficient integration into the overall system design.

2. Weight Constraints: Certain applications, such as drones or lightweight robots, may have strict weight limitations. Smaller-sized DC motors are generally lighter, making them more suitable for weight-sensitive tasks where minimizing the overall system weight is essential.

3. Cooling and Heat Dissipation: The size of a DC motor can impact its ability to dissipate heat generated during operation. Smaller-sized motors may have less surface area for heat dissipation, which can lead to increased operating temperatures. In contrast, larger-sized motors typically have better heat dissipation capabilities, allowing for sustained operation under heavy loads or in high-temperature environments.

Power Rating of DC Motor:

The power rating of a DC motor refers to the maximum power it can deliver or the power it consumes during operation. The power rating determines the motor’s capacity to perform work and influences its performance characteristics. Here are some key considerations regarding the power rating of a DC motor:

1. Torque Output: The power rating of a DC motor is directly related to its torque output. Higher power-rated motors generally provide higher torque, allowing them to handle more demanding tasks or applications that require greater force or load capacity. For example, heavy-duty industrial machinery or electric vehicles often require DC motors with higher power ratings to generate sufficient torque for their intended tasks.

2. Speed Range: The power rating of a DC motor affects its speed range capabilities. Motors with higher power ratings can typically achieve higher speeds, making them suitable for applications that require rapid or high-speed operation. On the other hand, lower power-rated motors may have limited speed ranges, making them more suitable for applications that require slower or controlled movements.

3. Efficiency: The power rating of a DC motor can impact its efficiency. Higher power-rated motors tend to have better efficiency, meaning they can convert a larger proportion of electrical input power into mechanical output power. Increased efficiency is desirable in applications where energy efficiency or battery life is a critical factor, such as electric vehicles or portable devices.

4. Overload Capability: The power rating of a DC motor determines its ability to handle overloads or sudden changes in load conditions. Motors with higher power ratings generally have a greater overload capacity, allowing them to handle temporary load spikes without stalling or overheating. This characteristic is crucial in applications where intermittent or varying loads are common.

Overall, the size and power rating of a DC motor are important factors in determining its suitability for different tasks. Smaller-sized motors are advantageous in space-constrained or weight-sensitive applications, while larger-sized motors offer better heat dissipation and can handle heavier loads. Higher power-rated motors provide greater torque, speed range, efficiency, and overload capability, making them suitable for more demanding tasks. It is crucial to carefully consider the specific requirements of the application and choose a DC motor size and power rating that aligns with those requirements to ensure optimal performance and reliability.

China Standard 96V 50kv Waterproof & Water-Cooled Brushless DC Motor 10kw   vacuum pump distributorsChina Standard 96V 50kv Waterproof & Water-Cooled Brushless DC Motor 10kw   vacuum pump distributors
editor by CX 2024-05-15


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