CubeMars W30
W30 underwater thruster kit, 6.7 to 7.7 kgf forward thrust and 200 m operating depth. ESC and propellers included, 480 W, 420 g.
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Product description
The W30 is a lightweight underwater thruster kit designed to run fully immersed in seawater. The kit combines the W30 KV320 motor, the W30 ESC-6S-45A driver, a shroud and two propellers, one clockwise and one counterclockwise. It produces 6.7 to 7.7 kgf of forward thrust at 480 W rated power and is rated to 200 meters. Unlike the DW series, the driver is included and the thruster weighs only 420 g in air.
Key features
- Corrosion protection. The magnets have a special protective coating. Shafts and housing screws are high-grade stainless steel.
- Fully potted windings. The windings are fully encapsulated in resin, so the motor is cooled directly by water and performance stays stable.
- Self-lubricating bushings. Instead of conventional bearings it uses self-lubricating bushings that work once immersed. This design resists pressure naturally and allows operation at 200 m.
- Efficient shroud. The streamlined profile of the high-strength polycarbonate (PC) shroud improves thrust efficiency.
- Forward and reverse thrust. 6.7 to 7.7 kgf forward and 5.0 to 5.8 kgf reverse, which makes precise maneuvering easier.
Applications
Typical applications include marine robots, small and medium AUVs and ROVs, unmanned surface vehicles (USVs) and electric surfboards. Its low weight makes it a strong fit for vehicles with a tight weight budget.
Is it enough for your project?
A single W30 delivers 6.7 to 7.7 kgf of forward thrust. For example, a small vehicle with two W30 units facing straight forward has at least 13.4 kgf of forward static thrust. Reverse thrust is lower (5.0 to 5.8 kgf), so take this difference into account on vehicles where backing up matters.
Rated power is 480 W and rated current 22 A. The motor can draw 30 A and 720 W for up to 180 seconds. The ESC runs on 4S to 6S LiPo or Li-ion batteries, and the manufacturer recommends 6S. The thruster weighs 420 g in air and 200 g in water. If you need more thrust or 350 m depth, consider the DW10.
How it compares to similar models
- SW7. 7 kgf of thrust and 360 W at 36 V. It weighs 700 g, is limited to 30 m depth and needs a separate driver.
- DW10. At least 10 kgf of thrust at 36 V and 540 W, rated to 350 m. It weighs 840 g and pairs with the TW-40A-12S ESC.
Frequently asked questions
Is the ESC included?
Yes. The kit includes the W30 ESC-6S-45A driver. It delivers 45 A continuous and 50 A for 10 seconds, is controlled with a 1000 to 2000 µs throttle signal and weighs 32.5 g.
Why are there two different propellers?
The box contains two propellers, one turning clockwise (CW) and one counterclockwise (CCW). When thrusters are used in pairs, counter-rotating propellers balance the vehicle's tendency to spin around its own axis. The propellers are Ø76.1 mm with a 3.6 inch pitch.
Can it be used in seawater?
Yes. The W30 is designed to run immersed in seawater. Coated magnets, resin-potted windings and stainless steel shafts provide resistance to salt water.
What are the motor's specifications?
The motor is designated W30 KV320, weighs 270 g and has a 12N14P layout. Phase resistance is 220 mΩ and inductance 125 µH. At 10 V its no-load speed is 3200 rpm and no-load current 0.5 A.
In the box
- W30 motor
- W30 ESC-6S-45A driver
- W30 shroud
- Three-blade propellers, CW and CCW (one each)
- M3 x 5 mm Phillips pan head screw x1 and nylon washer x1
- Certificate of conformity
Box size 180 x 150 x 115 mm.
Related products
The W30 comes with its own driver. Our team can support you with battery selection, control signals and vehicle integration.
Shipping and delivery
Products in stock are dispatched within 3 business days from our warehouse in Turkey.
Shipping cost and delivery time to your country are shown at checkout. For models not listed in stock, ask our technical team about the lead time.
Returns
To start a return, contact us through our technical team. The product must be unused, undamaged and in its original packaging.
Return conditions for international shipments are confirmed before purchase.
Specifications
Values from the manufacturer's datasheet.
Values are taken from the manufacturer's datasheet.
Project support
Let's bring your project to life together
If you are building a robot arm, a humanoid robot, an exoskeleton or a competition vehicle, tell us about your project. From motor selection to commissioning, our team stays with your project at every stage.
For university teams, R&D teams and industrial projects
- The right motor, the right torqueLet's choose the model together based on your joint loads.
- Setup and commissioningWe are with you on the driver, CAN communication and parameter tuning.
- From prototype to productionLet's plan quantities and supply around your project timeline.
Technical documents
Files are published by the manufacturer CubeMars.
Request a quote
Fill in the form for volume purchases, company invoicing and project pricing. Our team will get back to you shortly.
Frequently asked questions
The most common questions about motor selection, delivery and technical support.
Is the product in stock and when is it dispatched?
Our products ship from our own warehouse in Turkey. Your order is dispatched within 3 business days. Current stock status is shown on this page.
Which motor fits my project? Can you help me choose?
Yes. Tell us the torque, speed and supply voltage you need, and we will find the right series together. You can also compare using the specifications table on this page and the filters on the category page.
- For high torque at low speed, the AK, AKE and AKH series with gearbox
- For direct drive and low inertia, the frameless RI and RO series
- For cameras and stabilization systems, the GL series
Are the products genuine and under warranty?
Robotizma is an official CubeMars distributor. Every product we sell is genuine and covered by the manufacturer's warranty.
Where can I find the datasheet and mounting dimensions?
The Specifications section on this page lists rated torque, peak torque, KV, no-load speed, weight and outer dimensions. If you need the detailed datasheet, CAD file or driver documentation, ask our technical team.
Do you offer corporate sales, quotes and invoices?
We sell to universities, industry and R&D projects. For volume pricing and a formal quote, fill in the Request a quote form on this page and our team will reply with price and delivery details.
Which driver and communication can I use with the motor?
In the AK and AKH series actuators the driver board is built into the motor and communicates over CAN. The AKE series and the frameless RI and RO series motors need an external FOC driver. The R-Link and S-Link interfaces are for setup and debugging, and we can support you during installation.
Can't find your question?Write to the technical team
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