LIMITED EDITION
 Live Steam 

Twin Cylinder Beam Model Steam Engine 
Fully Machined Kit in Brass, Bronze and Steel 


The limited edition twin cylinder beam engine though simplified, has all the basic elements of beam engines which were widely used by industry in the early part of the industrial revolution. These, often huge engines, were used for pumping water from mines, in water works and extensively operated in many heavy industries.


The engine consists two Beam engines mounted on a base plate connected via a common flywheel. The Middleton Top Incline Winding Engine has the same basic layout.


See video of beam engine running under live steam.


NOTE: Pictures are of the assembled and cleaned up model, this listing is for the kit of parts excluding wall card around base. The pulley wheels and manifold shown in the pictures are optional extras.


The beam engine's Watts Parallel motion, eccentric driven valve mechanism and large steel flywheel make this engine fascinating to watch, particularly at slow speeds.


Having twin cylinders means the engine will self-start in any position and run in reverse by applying steam/air pressure to the exhaust ports, for example by using the optional Reversing/Throttle Valve.


The engine includes quadruple split bronze pedestal bearings for the crank shaft and double split bronze pedestal bearings for each beam shaft, split bronze connecting rod bearings, cast steel columns, substantial steel base plate (can be customised see below) and legs.


The cylinder assemblies, chests, inlet/outlet pipes, eccentric rods, and pistons are manufactured from brass and the piston shafts, valves, valve mechanisms, connecting rods and parallel motion links from stainless steel so are not susceptible to corrosion. The piston shafts passes through adjustable glands.


All required hex head setscrews are included in the kit. NOTE: some setscrews/pins will need to be cut/filed to length to complete the model.


Each part in the kit is carefully precision made and checked to ensure reliability in service.


Detail Specification:

- Type: Watts
- Bore: 14mm
- Stroke: 18mm
- Flywheel Diameter: 120mm
- Valve type: Piston
- Height: 174mm
- Length: 280mm
- Width: 180mm
- Weight: 4.5Kg
- 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, spanner, allen keys, pliers and metal file. The parts are mainly unfinished metal and will also require painting, polishing, filing, etc. to achieve the appearance shown in the pictures.


Limited Edition - The base plate can be manufactured to customer requirements making the finished engine totally unique. The picture shows the engine with the default 28x18cm rectangular base plate but it is possible to produce different sizes, shapes, cut-outs, leg lengths, etc. Some limitations apply, a few weeks lead-time and a nominal cost, so contact us with ideas and requirements.


When assembled the engine is fully working and can be run using steam or simply using compressed air e.g. from hand or foot pumps.


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



Limited Edition Twin Cylinder Beam Engine Kit

  • Product Code: LEBTA
  • Availability: 5
  • £808.00


Available Options


Tags: Live Steam, Model Steam Engine, Fully Machined Kit, Beam Engine