The RW V4 is built for enthusiasts who want working motion to remain fully visible. Its four-cylinder architecture, machined components and exposed valve gear make it both a functional power unit and a striking mechanical display.
Use suitable steam oil and a correctly specified boiler. Confirm pressure, coupling and installation requirements before operation; hot and moving components require careful handling.
LIVE STEAM / WORKING MECHANICS
A machine you can understand by watching it move.
Selected for visible engineering, collector-grade materials and the satisfaction of building a properly matched working system.
01 / MOTION
Mechanics left visible
Pistons, rods, crankshafts and valve gear turn operation into a clear demonstration of mechanical principles.
02 / MATERIAL
Made to be kept
Machined metal components, purposeful finishes and serviceable construction give each model lasting display value.
03 / SUPPORT
Match the system first
We help confirm boiler output, pressure, fittings, shaft alignment and installation requirements before you order.
Before you order
Confirm boiler compatibility
Confirm working pressure
Check pipe and thread sizes
Plan lubrication access
Confirm shaft alignment
Allow safe ventilation
Provide a secure mounting base
Review included accessories
For collectors and builders
These models are best suited to experienced hobbyists, supervised educational demonstrations and carefully engineered model installations.
