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TD1.2 12-24V 312W 100M Underwater Thruster without ESC For Kayaks ROVs
$52.00 USD
$73.00 USD
Customization Service
We are the OEM ODM manufacturer. For bulk orders and custom solutions, please contact us at official@hobbywater.com
When will I get my order?
We prioritize fast order processing. For in-stock items, orders placed before 4:00 PM (Beijing Time) will be shipped the same day. Standard orders typically ship within one week, while customized orders require approximately 15-30 business days for production and delivery. Delivery times may vary under special circumstances.
Shipping Methods
We ship to most countries worldwide. However, please ensure compliance with your local import regulations.
- For the USA: We offer tax-inclusive shipping options. Expedited orders are shipped via DHL, UPS, or FedEx. Note: DHL does not allow undervaluation.
- For other countries: Tax-inclusive shipping is available upon request. Otherwise, orders will be shipped via 4PX by default.
For specific shipping requirements, please contact us in advance.
Discover the Power of the Hobbywater Small Underwater Thruster TD1.2
Experience the ultimate in underwater propulsion with the Hobbywater Small Underwater Thruster TD1.2. Boasting a thrust of 2.2kg, this motor is perfect for your underwater kayak adventures. Equipped with high-progress bearings, it ensures a long-lasting, efficient performance even in the toughest underwater conditions.
Top choice for ROV projects!
Key Specifications:
- Input Voltage: 12V - 24V
- Current: 13A
- Motor Size: 28MM x 38MM
- Thruster Size: 78MM x 112MM
- Motor KV: 500KV
- Rated Voltage: 12V - 24V
- Thrust Forward: 1200g - 2500g
- Rated Current: 5A - 13A
- Power: 60W - 312W
- Packing Weight: 310g
- Material: Cover Nylon Injection Moulding Anti-Corrosion
- Components: Deflecting Cover and Cap, Propeller (CW or CCW), Motor, Cable
- Cable length: 50cm
Advantages:
- Compact Design: Made from nylon fibreglass composites, our thruster boasts excellent mechanical properties and superior anti-corrosion capabilities.
- Full Waterproof Technology: Resistant up to 100 meters underwater, with motor encapsulation technology ensuring long-lasting operation.
- High-Precision Bearings: Extends the motor's service life, ensuring reliable performance.
- Efficient Power Combination: Propeller crafted from robust composite material, paired with the best-matched motor for optimal efficiency.
- Easy Assembly: Modularized base design to meet diverse field requirements.
Elevate your underwater experience with the Hobbywater Small Underwater Thruster TD1.2 – where innovation meets performance.
Thruster Safety: Quick Guide
1. For Your Safety:
- Keep Clear: Never put hands, feet, or anything near the propeller when it's plugged in. It can spin without warning and cause injury.
- No Water, No Power: Do not run the thruster in air for more than 10 seconds. It needs water to cool itself or it will break.
2. For The Thruster's Safety:
- Check Seals: Always check that the rubber O-rings are clean, greased, and undamaged before putting it in water.
- Avoid Debris: Keep it away from weeds, sand, and plastic bags. These can jam and break the propeller.
- No Regular Glue: Do not use normal threadlocker (screw glue) on any screws. It will crack the plastic body. Only use a kind that is safe for polycarbonate.
3. Simple Rules:
- Test First: Always test in a bucket or pool before going to open water.
- Rinse After Use: Always rinse with fresh water after use, especially in saltwater.
- Store Safely: Keep it in a case to protect it from bumps and dust.
Thruster Propeller Guide
1. Two Propeller Types:
- You get two propellers: one labeled "CW" (spins clockwise) and one labeled "CCW" (spins counterclockwise).
2. How Thrust Works:
- Forward Thrust (Recommended):A CW propeller pushes best when spinning clockwise.A CCW propeller pushes best when spinning counterclockwise.✅ Use this for maximum power and efficiency.
- Reverse Thrust:Both can also spin the opposite way to push backwards.⚠️ This works but is weaker and less efficient.
Quick Tip: Always check the label (CW/CCW) to make sure you have the right propeller installed for the direction you want to go. For the strongest push, use forward thrust.
What You Need to Run a Thruster？
The Thruster: The main unit, which contains a brushless DC motor.
- Power Source: A battery pack or power supply.
- A Controller: Something to tell it how fast and which way to spin (e.g., a remote control).
How to Connect It:
- If your thruster has a built-in ESC:
You can often connect it directly to a standard PWM receiver. - Important Note on Power:
If your receiver or ESC does not have a BEC (Built-in Eliminator Circuit) to power itself, you will need to add a separate BEC module. This provides the necessary power for the electronics.
Thruster making strange sound,broken?
It's normal for our thrusters to be loud.They use plastic bushings, so small movements between parts can cause sound. This noise is greatly reduced underwater, as water lubricates and cools the system.Never run them dry for more than a few seconds—it can permanently damage the bearings. Every thruster is tested to work properly.
TD1.2 Underwater Thruster ★ Best Seller
12–24 V · 1.2 kgf nominal · Bidirectional · ROV & Submarine Ready
12 V · 1.2 kgf @ 8 A · 24 V · 2.4 kgf @ 15 A
PWM 1–2 ms · Bidirectional with same propeller · 500 KV · 14 Poles
500 KV
14 Poles
100 m depth
311 g (without ESC)
~330 g (with ESC)
24 V — not for extended use
Performance Data – Measured Values
The table below shows actual measured values. 1.2 kgf nominal thrust at 12 V · 8 A. At 24 V, the thruster delivers 2.4 kgf at 15 A. Thrust range: 1–2.4 kgf across normal operating conditions. * 24 V operation is only available for the standalone TD1.2 (without ESC).
| Voltage (V) | Current (A) | Power (W) | Thrust (g) | Thrust (kgf) |
|---|---|---|---|---|
| 12 | 1 | 12 | 310 | 0.31 |
| 12 | 2 | 24 | 510 | 0.51 |
| 12 | 3 | 36 | 710 | 0.71 |
| 12 | 4 | 48 | 870 | 0.87 |
| 12 | 5 | 60 | 980 | 0.98 |
| 12 | 6 | 72 | 1040 | 1.04 |
| 12 | 7 | 84 | 1170 | 1.17 |
| 12 | 8 | 96 | 1200 | 1.20 |
| 24 | 9 | 216 | 1440 | 1.44 |
| 24 | 11 | 264 | 1920 | 1.92 |
| 24* | 15 | 360 | 2400 | 2.40 |
* 24 V operation only for TD1.2 standalone (without ESC) · Fresh water at 25 °C · ±5% tolerance
Bidirectional – Same Propeller
The TD1.2 is fully bidirectional using the same propeller for both forward and reverse. At 12 V, maximum reverse thrust is approximately 70–80% of forward thrust (estimated 0.85–0.95 kgf), depending on ESC commutation efficiency. For precise reverse values, we recommend testing with your specific ESC.
PWM Control – Bidirectional Logic
Signal Specification
- — PWM range – 1.0 ms to 2.0 ms
- — Neutral (stop) – 1.5 ms
- — Clockwise (forward) – 1.5 ms → 2.0 ms
- — Counter-clockwise (reverse) – 1.0 ms → 1.5 ms
- — Frequency – 50 Hz (20 ms period) standard
Motor Specifications
- — KV – 500
- — Poles – 14 (7 pole pairs)
- — Motor size – 28 × 38 mm
- — Sensorless ESC – compatible (proportional forward/reverse)
⏺ Voltage & Battery: The standalone TD1.2 is rated for 12V – 24V (3S – 6S).
The thruster is reliable at 24V — however, extended use at 24V is not recommended due to increased thermal load.
TD1.2E (with ESC) is 12V (3S) only.
⏺ Direction switching: When transitioning between forward and reverse, we recommend returning the throttle to neutral (1.5 ms) and waiting approximately 0.5–1 second before applying opposite direction throttle. This helps prevent motor stall or ESC protection triggers.
Continuous Operating Limits
AT 12 V
1.2 kgf @ 8 A
96 W continuous
Sustained operation
AT 24 V *
2.4 kgf @ 15 A
360 W burst
Not for extended use
REVERSE
~70–80%
of forward thrust
0.85–0.95 kgf @ 12 V
⏺ Thermal note: The nylon injection-moulded housing provides excellent corrosion resistance but has limited heat dissipation. For prolonged missions at 12 V, we recommend keeping the average current below 8 A to maximise motor lifespan. 24 V operation should be limited to short bursts. * 24 V only for TD1.2 standalone (without ESC).
Wiring & Power Requirements
TD1.2E (WITH ESC)
- — Operates at 12V (3S) — do not exceed this voltage
- — No BEC (Battery Eliminator Circuit) — receiver requires separate power
- — 4S (14.8V) is possible but not suggested
- — Includes waterproof bidirectional ESC
⚠ Important: The ESC included with the TD1.2E does not have a BEC. If using a remote control, you must provide separate power to the receiver.
TD1.2 (WITHOUT ESC) — Best Seller
- — Rated for 12V – 24V (3S – 6S)
- — Reliable at 24V — but extended use not recommended
- — Compatible with standard sensorless brushless ESCs
- — Requires user-supplied ESC with bidirectional support
⏺ Recommendation: For 24V operation, use an external ESC rated for at least 15A continuous and monitor motor temperature.
Installation & Reference Images
Mechanical Dimensions & Drawings
Key Dimensions
- Thruster diameter78 mm
- Overall length (with nozzle)112 mm
- Propeller diameter~64 mm
- Motor size28 × 38 mm
- Propeller removal clearance≥ 30 mm (axial)
- Cable outletRear exit
- Standard cable length50 cm
- Max. cable length (motor → ESC)≤ 3 m
Media & Reference
Available Configurations
The TD1.2 is available as a standalone thruster or as a complete set with a matching bidirectional ESC. Both share the same mechanical and performance characteristics.
★ Best Seller
TD1.2 Standalone
- Voltage12 – 24 V
- Motor KV500
- Poles14
- Forward thrust1.2 – 2.4 kgf
- Rated current5 – 15 A
- Power60 – 312 W
- Working depth100 m
- Weight~311 g
- IncludedNozzle · Propeller · Motor · 50 cm cable
- ESCNot included
TD1.2 + ESC Set
- Voltage12 – 14.8 V
- Motor KV500
- Poles14
- Forward thrust1.2 – 2.4 kgf
- Rated current5 – 13 A
- Power60 – 192 W
- Working depth100 m
- Weight~330 g
- IncludedNozzle · Propeller · Motor · 50 cm cable · ESC
- ESCIncluded · Bidirectional
Key Specifications – TD1.2
V
Voltage
12 – 24 V
A
Max Current
15 A
N
Thrust Range
1 – 2.4 kgf
g
Weight
~311 g (without ESC)
Material
Nylon + fibreglass composite
Nylon + fibreglass composite
Working depth
Up to 100 m
Up to 100 m
Environment
Fresh water · Sea water
Fresh water · Sea water
Included
Nozzle · Propeller · Motor · 50 cm cable
Nozzle · Propeller · Motor · 50 cm cable
Order Information
Shipping & Lead Time
- Orders up to 100 units Within 10 days
- Orders above 100 units Please inquire
Cable & Warranty
- Standard cable 50 cm
- Max. cable length (motor → ESC) ≤ 3 m
- Warranty 3 months
- Coverage Manufacturing defects
Ideal for your application
The TD1.2 delivers 1.2 kgf forward at 12 V and 2.4 kgf forward at 24 V (standalone version), with ~0.85–0.95 kgf reverse at 12 V — comfortably meeting a wide range of ROV and submarine requirements.
HobbyWater · TD1.2 Underwater Thruster · Data ±5% tolerance · Fresh water / Sea water
