Motor: 1× GB type T2 Drive: worm and wheel to each axle Voltage: 48 V, Lead acid batteries ZM32 Horwich was built in 1957 and was given the works number of 416214.

It was initially being sent to a banana plantation in South America; however, it was abandoned in Liverpool docks until bought for the Gloddfa Ganol museum in Wales.

When Gloddfa Ganol closed, it was bought by an SGLR member, restored to 18 in gauge and fitted with airbraking.

Engine: Ruston and Hornsby 20 hp (15 kW) diesel Transmission: Hydraulic, 2 gear box This locomotive is unusual, being home built.

It was able to seat two passengers and the driver, but the drive was geared too highly for the engine to cope with the gradient on the line.

The locomotive is not in regular use because of its insufficient pulling capacity and horsepower required to climb the grade before Middleton station.

[citation needed] Engine: 3½ HP Villiers Mk25 with reduction box Transmission: Cup and cone reversing clutch and chain drive The railway has three battery Claytons of similar designs in private ownership.

Peggy serves as the primary locomotive for work trains on the SGLR, taking volunteers up and down the line to do rail and infrastructure maintenance, often seen with the tool wagon being shunted back and forth.

Designed to work in 4 ft (1.22 m) diameter sewer pipes, it even has a "barn roof" style battery box top to make maximum use of confined space.

[citation needed] This was the first locomotive on the railway, bought with a large amount of track and rolling stock from Ladywash Mine, near Eyam in Derbyshire.

It arrived at the SGLR in a poor state of repair, which along with the lack of controller meant it was moved around various sidings unused.

Work is also currently underway on the manufacture of a replacement controller, making use of contactors and resistances from other electrical machines.