TD30E/TD20E/TD15E

30KG/20kg/15kg

*PWM signal

*built-in ESC

*ESC WITH BEC

*High thrust

*With bracket

*Fully Waterproof

*Extended Motor Life

*Optimized Efficiency

*Easy Installation

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TD30e SUP feedback from Mark

Big thanks to our customer @strepto42 for sharing this awesome shot of the TD30E SUP Version underwater thruster in action! 🙌🔱
Stoked to see it powering through the water.

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TD24-360W Fin kit feedback from Richard

“We’ve been enjoying the TD-24 – two people, one dog, and the river.”
Real trips, real fun.

– Richard, with the best first mate

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Why Choose Us

Welcome to Hobbywater, a dynamic sub-brand of Diamond Dynamics .

Formally established in February,2015. Shengzhen Diamond Dynamics Technology Co.,LTD specializes in the R&D, production and sales of DC brushless motors, thrusters and intelligent motor control systems. We can do both OEM and ODM. We have our own R&D team.

We are honored that Diamond Power can satisfy customers with the products of brushless motors and their control systems, and it is our aim to make the world full of power. Contact Diamond Power for custom design inquiries or learn more about custom product features.

Shop by collection

Deepwater Thruster
Deepwater Thruster

Deepwater Thruster

Brushless Waterproof Underwater Motors
Brushless Waterproof Underwater Motors

Brushless Waterproof Underwater Motors

Controller
Controller

Controller

Underwater Thruster
Underwater Thruster

Underwater Thruster

Electric Floats
360° Motorized Pool Float – Inflatable Pool & Beach Float for Summer Pool Party

Electric Floats

Waterproof ESC
Waterproof ESC

Waterproof ESC

Thruster Kit
Y02 10km/h 22V 500W Electric  Fin Kit SUP Underwater Thruster with Battery for Paddle Board Boat

Thruster Kit

Accessories
Accessories

Accessories

Real customer, real installation, real fun — watch them install TD6E and hit the water.

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Energize the wolrld

Everything we do starts with why

Made with care

We believe in building better

A team with a goal

Real people making great products

Frequently asked questions

Q1:How much thrust do I need for my ROV / kayak / project?

A: It depends on your total weight and desired speed.

Thrust Typical Use

1–5 kg Mini ROV, inspection

5–20 kg Kayak, small boat, medium ROV

20–50 kg Commercial ROV, aquaculture

50–100 kg Industrial, deep-sea

Not sure? Tell us your weight + speed + environment, and we'll recommend a model.

Q2. PC vs aluminum – which material should I choose?

A: Both can reach 300m. PC is lighter and naturally corrosion-resistant. Aluminum is stronger and more impact-resistant.

Example: TD7 V2 uses PC housing at 300m depth (5.6kgf thrust).

  • Choose PC → weight-sensitive, cost control
  • Choose aluminum → heavy-duty, extra-deep (300m+)
Q3:Do you support customization?

Yes, absolutely! As a manufacturer specializing in underwater thrusters and electric propulsion systems, we offer comprehensive customization services.

Our customization capabilities fall into two main categories:

1. OEM/ODM Manufacturing for Bulk Orders
We are the OEM/ODM manufacturer behind many products in the market, with our own R&D team dedicated to developing customized solutions . If you require custom specs, branding, or product features for wholesale or commercial projects, our engineering team is ready to co-develop a solution that fits your performance goals.

2. Custom Mounting Brackets
We understand that every marine application is unique. We can design custom mounting brackets tailored to your specific boat configuration—whether it's for a lightweight inflatable, a rigid hull, or a prototype watercraft . To get started, we’ll need details such as:

  • Transom design (angle, thickness, clamp-on or bolt-on)
  • Desired propeller depth below the waterline
  • Installation preferences (ESC placement, cable routing, tilt adjustments)
  • Space or weight constraints

If you’re working on a custom watercraft or commercial prototype, we’re happy to co-develop a solution that fits your needs.

Lead Time for Custom Orders
Please note that customized orders typically require approximately 15–30 business days for production and delivery, as they involve tailored engineering and manufacturing processes .

How to Get Started
Reach out to us via email at official@hobbywater.com with your specific requirements. For custom brackets, sharing a photo or sketch of your setup helps us provide a detailed drawing and quote faster . Our customer service team is available Monday–Friday, 9 AM–6 PM (UTC+8) to assist you.

Q4. Can you make custom motors? What about DIY waterproofing?

A: Yes – we design and manufacture custom motors for your specific application (thrust, size, voltage, mounting, etc.).

As for DIY waterproofing of generic motors:

  • Not recommended. Generic motors lack proper sealing and corrosion-resistant bearings. They often fail within hours underwater.
  • Our solution: Purpose-built thrusters with multi-stage dynamic seals, ceramic/stainless steel bearings, and full pressure testing – 500+ hours rated life.

Tell us your requirements. We build the motor right for underwater use.

Q5. Is the ESC included? What control signal do you use?

A: You can choose motor only or motor + ESC. All our thrusters use PWM signal – the industry standard, compatible with most RC transmitters and flight controllers.

Options:

  • DIY kit → thruster + cable
  • Ready-to-run kit → thruster + waterproof ESC + wiring

Need a different signal type? Contact us for custom options.

Q6:Where are your products manufactured?

Our products are manufactured in Shenzhen China.We carefully select our manufacturing partners to ensure our products are high quality and a fair value.

Q7:When will I get my order?

We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.Kindly check our shipping policy