Live Steam 
Limited Edition 
Single Cylinder "Mill" Model Steam Engine 
Fully Machined Kit in Brass, Bronze and Steel 

This limited edition version of our single cylinder Mill engine includes the large steel flywheel off our Beam engine, shaft support and mounting plate with legs.

The horizontal single cylinder mill engine is a simple design, yet retains the basic mechanics of engines which powered many mills, factories and mine pits in the nineteenth century.

NOTE: The pictures are of the finished, assembled and painted model, this listing is for the kit of parts. The pulley wheel shown is available as an option.

The classic mill engine layout has a double acting cylinder, eccentric driven piston valve and the large steel flywheel offers smooth and slow running and is capable of powering a range of accessories, in a variety of roles. The engine also includes triple split bronze bearings for the crank shaft, a substantial cast base and steel mounting plate with legs.

The kit consists of precision produced parts each carefully made and checked to ensure reliability in service.

The cylinder assembly, slider and piston are manufactured from brass and the piston shaft, conn rod and valve from stainless steel so are not susceptible to the corrosion. The piston shaft passes through an adjustable gland and the steam inlet can be on the top or bottom of the chest.

Detail Specification:
- Type: Horizontal Slide
- Bore: 14mm
- Stroke: 18mm
- Flywheel Diameter: 120mm
- Valve type: Slide
- Height: 120mm
- Length: 190mm
- Width: 85mm
- Weight: 1.9kg
- Connections: 1/4" x 40 tpi ME

The kit consists of a set of fully machined parts that can easily be assembled using simple tools such as a small spanner, hex/allen keys, pliers and metal file. The parts are largely unpainted metal parts and will also require polishing/filing to achieve the finish shown in the pictures.

NOTE: The kit is supplied with hex or socket head set screws (as per the pictures). Some screws as provided may need to the cut or filed to length to complete the model, contact us if this will cause a problem.

When assembled the engines are fully working and can be can be run using steam or simply using compressed air from hand or foot pumps.

To power the engine with live steam, connect it to one of our Model Steam Boilers.

NOTE: The model steam engines and boilers are NOT children’s toys and should not be assembled or operated by children unless under close supervision of an adult.
Name Size Action
Mill Single Cylinder Model Steam Engine Assembly Instructions 1.08MB Download
Mill Single Model Steam Engine Assembly Drawing 875.69KB Download

Limited Edition Horizontal Mill Single Cylinder Engine Kit

  • Product Code:LEHSA
  • Availability:Out Of Stock
  • £260.00


Available Options


Tags: Limited Edition Mill Single