RW-V4 Mini V-Shape 4-Cylinder Reciprocating Steam Engine Model for 90-150cm Steamships

RW-V4 Mini V-Shape 4-Cylinder Steam Engine Model for 90-150cm Steamship (Forward and Reverse Rotation/Without Boiler)

Product Information:

RW-V4 mini 4-cylinder steam engine—vintage, reversible, and precisely crafted for 90–150cm steam ship models. A functional masterpiece for collectors and DIY boat enthusiasts.

.Top-Tier Design, Compact and Powerful:

As a flagship model in the RW series, it features a unique V-type four-cylinder structure. The twin cylinder banks operate on a coaxial system, maximizing both spatial efficiency and power output. Perfect for applications with strict space and performance requirements, such as industrial equipment and high-end model building.

.Upgraded Precision, Reliable Stability: 

Compared to twin-cylinder models, this version upgrades the welded rocker arm to a CNC-machined one and adds a brass sleeve bearing to the reversing shaft. Combined with a die-cast brass body, stainless steel liners, and precision CNC-machined components, the redesigned reversing mechanism ensures smoother, more reliable operation.

.Outstanding Performance with Strong Torque: 

The V-four configuration delivers ultra-smooth operation, with high torque and powerful output. It runs as smoothly as an electric motor with minimal torque fluctuations—perfect for driving large model ships, precision machinery, or for use as a power demonstration model. Its performance far surpasses that of comparable products.

.Flexible Control with Bi-Directional Rotation:

Equipped with a complete Stephenson valve gear, the engine supports both forward and reverse rotation. This allows for seamless directional switching, meeting diverse operational needs whether in complex mechanical systems or dynamic model displays—greatly improving overall usability.

.Rigorous Standards, Quality Guaranteed:

Each part undergoes strict testing and selection, and every unit is assembled and calibrated by experienced technicians. Factory-tested before shipment to ensure peak performance. From individual components to the complete machine, quality is strictly controlled to provide a long-lasting, premium-grade engine for professionals and advanced hobbyists.

More Details:

.Model: RW-V4
.Material: Brass + Stainless Steel
.Displacement: 12cc (1.5cc*2*4)
.Cylinder diameter: 12.2mm
.Stroke: 12.7mm
.Maximum speed: 2800rpm
.Maximum torque: 2000g/cm
.Power: 0.05hp
.Pressure: 2kg/cm2
.Applicable Ship Type: 90-150cm
.Product Weight: 1210g
.Package Weight: 1500g
.Product Dimensions: 12.2 x 11.7 x 10.5cm
.Package Dimensions: 18 x 14.5 x 10cm
.Packing: Box
.Ages: 16+

Packing List:

.V4 Steam Engine *1
.Manual *1