SKU: 5218871238

RW-V4 Miniature 4 Cylinder Steam Engine V4 Engine Model for 90-150cm Boat Models

Sale price$430.65 Regular price$478.50
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Description

RW-V4 Miniature 4 Cylinder Steam Engine V4 Engine Model for 90-150cm Boat ModelsSufficient Power to Drive Large Boats: If you own a large steam boat measuring 90 150cm, the RW V4 is the perfect power solution. With 0. 05hp of power and 2000g cm of impressive torque, it effortlessly powers your boat. Whether its a high performance model boat or small mechanical equipment requiring significant power, the RW V4 delivers excellent and reliable output. No More Frequent Maintenance Hassles: Crafted with brass and stainless steel


Sufficient Power to Drive Large Boats:

If you own a large steam boat measuring 90-150cm, the RW-V4 is the perfect power solution. With 0.05hp of power and 2000g/cm of impressive torque, it effortlessly powers your boat. Whether it’s a high-performance model boat or small mechanical equipment requiring significant power, the RW-V4 delivers excellent and reliable output.

No More Frequent Maintenance Hassles:

Crafted with brass and stainless steel materials and featuring CNC machining for precision, the RW-V4 offers high stability and durability, minimizing the need for frequent repairs. Whether you're a model enthusiast or an engineer, you can rely on it for long-term, stable use.

Precision Upgrades for Smooth Operation:

Say goodbye to concerns about instability or excessive vibrations. With a CNC arm and bronze bushing supports for the reversing shaft, the RW-V4 ensures smooth operation during extended use. This makes it ideal for precision mechanical or high-end model applications where smooth, quiet performance is essential.

Flexible Operation with Forward and Reverse Rotation:

In your work, you may need to adjust direction frequently. The RW-V4 is equipped with Stephenson's valve gear, supporting forward and reverse rotation, allowing you to easily switch directions. This feature is perfect for complex mechanical tasks or model adjustments, providing efficiency and ease of use.

Top-Quality Standards for High-End Users:

For users who demand exceptional quality, the RW-V4’s precise craftsmanship and rigorous quality control ensure each unit meets industry-leading standards. Every part undergoes detailed testing and assembly by skilled technicians, ensuring the best performance. It’s designed to meet the needs of both professional users and serious hobbyists.

Why Choose RW-V4?
If you’re looking for a precision steam engine to drive a large boat or high-performance mechanical device, the RW-V4 is your go-to solution. Its high torque and power output easily handle demanding loads, surpassing many alternatives in its class.

With durable materials and CNC machining, you’ll enjoy a long-lasting, low-maintenance product that reduces repair costs over time.

The forward and reverse rotation functionality and Stephenson valve gear make it easier to use in various scenarios, from model crafting to educational demonstrations, with smooth, reliable operation.

This steam engine features an M7×0.75 threaded connector and is compatible with boilers ranging from 200 to 400 mL in capacity. A working pressure of 2 kg is sufficient for stable and efficient operation.

Product Specifications:
Model: RW-V4

Material: Brass + Stainless Steel

Color: As shown in the image

Dimensions: 122117105mm

Weight: 1210g

Displacement: 12cc (1.5cc24)

Cylinder Bore: 12.2mm

Stroke: 12.7mm

Max RPM: 2800rpm

Max Torque: 2000g/cm

Power: 0.05hp

Pressure: 2 kg/cm²

Suitable Boat Size: 90-150cm

Suitable Age: 16+

Packaging: Paper Box

Package Contents: V4 Steam Engine x1, Manual x1

Frequently Asked Questions (FAQ):
What boat sizes is this steam engine suitable for?

The RW-V4 is designed for 90-150cm large steam boats, making it ideal for high-performance boat models.

Does the product include a boiler?

The engine is sold without a boiler, which must be purchased separately.

Is this engine suitable for beginners?

While the RW-V4 is designed for users with some knowledge of steam engines, its high precision and ease of use make it a great choice for model enthusiasts and engineers alike.

How do you ensure the RW-V4’s reliability and durability?

The RW-V4 is built using brass and stainless steel, along with CNC machining for precision. Additionally, the upgraded arm and bushing support ensure smooth and reliable operation, reducing the need for repairs.

What can I use this steam engine for?

The RW-V4 is ideal for powering large model boats, precision mechanical devices, or even for use in educational demonstrations due to its smooth operation and powerful performance.

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 5218871238

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L B
Alexandria, US
★★★★★ 5
Great little budget tote
Color: Black, Color: Black
I use this as my everyday bag (with an organizer inside) and it's the best little bag I've ever had. It's sturdy but soft, the strap is easily adjustable to a bunch of different lengths, and it's roomy enough in the inside for average everyday needs plus the occasional extras! The material is thick enough to be good quality, but not overly inflexibly thick. I also covered mine in pinback buttons and enamel pins, and the fabric is really good for pins - They go on firmly and don't slide around. I saw a lot of complaints about smell, but mine had no bad smell at all!
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Reviewed in the United States on April 27, 2025
K
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Kim
Chelsea, US
★★★★★ 5
Crossbody Purse with a choice of a bunch of colors to choose from!!
Color: Red
This is a great crossbody purse for anyone!! It holds my wallet, makeup bag, phone as well as a ton more space to add more stuff in!! I currently own the red and the army green. This is a great purchase!
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Reviewed in the United States on November 23, 2025
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chicken26
Chelsea, US
★★★★★ 4
Decent bag
Color: Light Grey, Color: Light Grey
2.5 year update: I'm ready to replace my beloved grey bag, but most of the colors more than doubled in price!! I get that there's inflation, but that's insanity. It was $10.99 when I bought in 2019. Forget this brand. Dropped a star. ----------------------------------------- Original review: In the photo, that's a 32oz Nalgene bottle and a small, Periea Chelsy organizer (found on Amazon, 8.5 inches long). 9 months of near daily use so far, no issues! I even got oil and ink stains on it, and they came right out. Great runaround bag, not too big not too small. Love it. First things I did, removed the label and coated it in Kiwi Protect All spray. Pros: - 2 pockets inside are deep and sooo useful - very cute - comfortable and very light to carry - adjustable strap length, for shoulder or crossbody - price is right - machine washable Cons: - zipper is a bit "sticky" - words on the label are classic Chinese-English, reminds me of Taiwan. Lol - no inside lining - fabric could be thicker. It's thin for canvas. - metal hardware is not stainless steel Neutral: - medium size (model must be child size, pay attention to dimensions. I'd say it's similar to standard disposable grocery bag size, cept taller) - durability is questionable. It's not going to come apart if you look at it wrong, but I definitely wouldn't try using this as a bookbag either. For the price, it seems sturdy enough. When this bag dies, I will 100% be buying another one if it's still available. Love it.
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Reviewed in the United States on February 15, 2019
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Sierra
West Palm Beach, US
★★★★★ 5
Great value for amazing bag
Color: Pink
Great deal on this tote bag, the strap length is extremely adjustable for size and different wearability. It has good storage space and no pockets inside but works well. It looks great with different colors I have the pink and my boyfriend has the coffee one which looks amazing. I added pins to mine and looks great! Love this bag
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Reviewed in the United States on October 10, 2025
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Imani
Fort Morgan, US
★★★★★ 3
I love my bag.
Color: Leopard White, Color: Leopard White
love the design, i barely put anything in it tho because it weighs the bag down even though it’s a nice size. out of the package looks like it hasn’t been sown properly thru, pieces of the fabric sticking out. (loose thread) you get what u pay for but still pretty. Update, Maybe i underestimated my baby love, she fighting the greatest fight! Still love my baby! I would buy another! i want the whole collectionnnnn!
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Reviewed in the United States on September 12, 2025

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