maytech MTI65162 inrunner brushless fully waterproof motor

New Designed Fully Waterproof Inrunner Motor

As the weather getting hotter, and more and more responses for electric surfboard, Maytech team has released its fully waterproof inrunner motor MTI65162, size 65.5mm*161.5mm (as following picture), with black appearance, 12mm size shaft.

For customers’ convenience, we made 10mm diameter screw on the top of the shaft, so you can install the propeller directly, and to match with the motor, we made a suitable propeller as following:

propeller for electric surfboard


How to Ensure Its Waterproof Performance:

To make sure its waterproof, every joint surface of the motor exterior parts, including top/bottom cover and motor case are seamless structures, wiring port and wiring terminals, a static sealing mechanism is arranged between the joint surface of the fastening bolt and the bolt hole, and a dynamic sealing mechanism is arranged between the motor shaft and the shaft hole.

The components on the outer surface of the motor are made of corrosion-resistant materials or are provided with an anti-corrosion layer. Since the gaps or passages that may exist inside and outside the waterproof motor are blocked by the sealing mechanism, a reliable waterproof effect can be obtained, and even if the water is poured for a long time, the water will be fully blocked inside water, and the short circuit failure occurs. 

To make sure the waterproof, the motor was tested underwater for over 12 hours before released: 

Test data as following:

Maytech 65162 water proof motor test datasheet


2 Versions: Sensored and Sensorless

To meet different customers requirements, we designed one version with hall sensor, one version without hall sensor. 

The sensored version can not only be used underwater but also can be used on electric skateboard, fighting robots, electric cars, etc.,

MT65162-190-SF-HA Sensored:

Motor Specs:

Model No.: MTI65162-195-SF

KV: 195

Max Current: 310A

Input Volt: 6-20S Lipo

Max Output Watt: 9100W

Rated Power: 8100w

Max. torque: 9N.M

Motor Weight: 2400g

Shaft: 12mm

Motor dimension: Φ650x 162mm

Idle Current @8.4V without Loading: 1.6A

Go to products:

maytech MTI65162 fully waterproof motor for electric surfboard


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