RW Mini Steam Engine Model – Twin Cylinder / Multi Cylinder Brass Steam Engine

The RW series miniature steam engines are precision mechanical models designed for model boats, steam vehicles, and engineering collections. Featuring a high-strength cast brass structure, precision CNC-machined components, and realistic valve mechanisms, these engines combine classic steam power appearance with excellent running performance.

The RW-V2 model achieves twin-cylinder power output in a compact single-cylinder-sized structure, making it an ideal choice for RC steam boats where installation space is limited.

Product Features

Premium Brass Construction

• Main body made from precision cast brass
• Strong structure with excellent durability
• Authentic vintage mechanical appearance
• CNC precision-machined core components

Advanced Cylinder Design

• Brass cylinders with stainless steel liners
• Composite piston rings for improved sealing
• Reduced wear and smoother operation
• Ball-bearing supported crankshaft system

Stephenson Valve Gear System

• Supports forward and reverse rotation
• Smooth speed control
• Reliable mechanical operation
• Suitable for model ship propulsion systems

Available Models

RW-V2 Twin Cylinder V-Type Steam Engine

Features:

• Compact V-type twin-cylinder design
• Twin-cylinder output with single-cylinder size
• Smooth and efficient operation
• Ideal for model boats with limited installation space

Specifications:

• Displacement: 6cc
  (1.5cc × 2 × 2)
• Bore: 12.2 mm
• Stroke: 12.7 mm
• Maximum Speed: 5000 RPM
• Power: 0.03 HP
• Weight: 600 g
• Working Pressure: 2 kg/cm²
• Maximum Torque: 1200 g/cm²
• Recommended Boat Size: 70–130 cm

Size:

• Engine: 120 × 81.5 × 106 mm
  (4.72 × 3.21 × 4.17 inches)

Package:

• 180 × 140 × 100 mm
  (7.09 × 5.51 × 3.94 inches)

RW-L2 Twin Cylinder Inline Steam Engine

Features:

• Slim inline twin-cylinder layout
• Extremely compact width
• Suitable for narrow engine compartments

Specifications:

• Size:
  118 × 53 × 97 mm
  (4.65 × 2.09 × 3.82 inches)
• Net Weight:
  790 g
• Package Weight:
  950 g

RW-V4 Four Cylinder V-Type Steam Engine

Features:

• Four-cylinder V configuration
• Higher power output
• Smooth multi-cylinder operation
• Suitable for larger and more advanced steam models

Specifications:

• Size:
  122 × 117 × 105 mm
  (4.80 × 4.61 × 4.13 inches)
• Net Weight:
  1210 g
• Package Weight:
  1500 g

Steam Engine + Boiler Sets

RW-BV2 Twin Cylinder V-Type Engine + Boiler Set

Includes:

• RW-V2 twin-cylinder steam engine
• Matching steam boiler system

Suitable for:

• RC steam boats
• Large mechanical model projects
• Display operation

RW-BL2 Twin Cylinder Inline Engine + Boiler Set

Includes:

• RW-L2 twin-cylinder steam engine
• Matching boiler system

Ideal for:

• Narrow hull installations
• Compact steam-powered model boats

Applications

Suitable for:

• RC steam-powered boats
• Vintage ship models
• Steam locomotive models
• Mechanical engineering displays
• Model engineering enthusiasts
• DIY steam projects

Package Options

Available Choices:

• RW-V2 Twin Cylinder V-Type Engine
• RW-L2 Twin Cylinder Inline Engine
• RW-V4 Four Cylinder V-Type Engine
• RW-BV2 Twin Cylinder Engine + Boiler Set
• RW-BL2 Twin Cylinder Engine + Boiler Set