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:
  1. Standard Shipping : 3-10 business days
  • 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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Crystal
San Leandro, US
★★★★★ 5
Exactly what I needed for my bathroom refresh.
Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 2, Size: 22.5inches, Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 2, Size: 22.5inches
I bought these floating shelves in the color Rustic Brown to replace a bulky storage shelf that was making my bathroom feel cramped, and they completely transformed the space. The wood finish looks much more expensive than I expected, and once installed they gave the bathroom a clean, modern, spa-like feel without taking up visual space. Installation was straightforward overall. I mounted one screw in the center into a stud and used drywall anchors for the remaining hardware, and the shelves feel very sturdy. They sit flush against the wall and don’t sag or wobble. I especially love how slim they are while still being deep enough to hold everyday bathroom items, decor, candles, skincare, and small baskets. The color worked perfectly with my bathroom vanity and mirror trim, and the floating design instantly made the room look more organized and intentional. Huge upgrade for a small space. Definitely recommend if you want functional storage that also looks elevated and minimalist.
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Reviewed in the United States on May 30, 2026
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Amazon Customer
Battle Creek, US
★★★★★ 4
Good Shelves
Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 3, Size: 22.5inches
These shelves are really nice quality and look as advertised. The hardware included was great quality, metal drywall anchors and good screws. They were easy to install, and make even/level with each other. My only gripe is the price, but I'm very satisfied with the product overall.
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Reviewed in the United States on April 12, 2026
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Patricia G.
Port Orchard, US
★★★★★ 5
Attractive, easy to install, nicely equipped hardware package.
Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 2, Size: 22.5inches
These are pretty doggone nice shelves and I appreciate the fact that they are not made of solid particle board. Yes they are made of an engineered product, but they are lightweight and strong…and look better than particle board products and more costly than their actual price. Easy installation system with the bracket…not fussy like some are. An especially thoughtful touch is the variety of hardware that is included. Also a tiny level for use when installing them. What? …So they can be installed correctly? I was pleasantly surprised by this inclusion.
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Reviewed in the United States on May 29, 2026
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Sara
Cuba, US
★★★★★ 5
Beautiful shelves
Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 2, Size: 22.5inches
Great quality shelves, have them in 4 rooms, they are easy to hang up and lightweight, look really nice and keeps room looking organized and clean.
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Reviewed in the United States on May 24, 2026
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Kristal S.
Birmingham, US
★★★★★ 5
Perfect for a coffee bar
Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 3, Size: 15.7inches, Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 3, Size: 15.7inches
These are great for my coffee bar! These shelves are easy to install and came with all the hardware needed. What a great value for your money, especially when you get 3 of these cute shelves. I love how they help organize my coffee bar area and the size fits perfectly.
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Reviewed in the United States on May 26, 2026

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