The horizontal twin 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: Pictures are of the finished, assembled and painted model, this listing is for the kit of parts.

The classic mill engine layout has two double acting cylinders, eccentric driven slide valves and the brass flywheel offers smooth running and is capable of powering a range of accessories, in a variety of roles. The engine also includes twin split bronze pedestal bearings for the crank shaft and a substantial cast base.

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

The cylinder assembly and piston is manufactured from brass and the piston shaft and valve from stainless steel so are not susceptible to the corrosion. The piston shaft passes through an adjustable gland which is readily accessible.

Detail Specification:
- Type: Horizontal Slide
- Bore: 14mm
- Stroke: 18mm
- Flywheel Diameter: 56mm
- Valve type: Slide
- Height: 53mm
- Length: 150mm
- Width: 100mm
- 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 screw driver, 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.

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.
We hope that customers will enjoy assembling the models and also find it an educational experience.

Additional information:

Assembly Drawing and Parts List (PDF)

Assembly Instructions (PDF)

Shipping quoted is UK Mainland only, please contact us for shipping costs to other delivery addresses.

For more steam engine kits see my other items for sale (under seller information).

For additional information please feel free to call us on 07941800103.