There were other extensive works constructed at the same time as the gun emplacements. The largest was an underground Casualty Clearing Station and Hospital.
At the height of production in 1942, the SAF employed 6000 workers. The hospital was large enough to treat 500 casualties and provide shelter to 2000. As the factory was never attacked, it fell into disuse in the latter half of the war and was used as storage for production. This is still in existence, but it has been gutted of all fittings, and access is restricted as it lies within the factory grounds and part of the rifle range.
As mentioned, the factory produced Rifles (Lee Enfields) and Machine Guns (Brens and Vickers). No revolvers or SMGs were made at Lithgow, although they came back there for repair and refurbishment. (For reference, .38 Enfield revolvers were made in Australia by Howard Auto Cultivators at Northmead in Sydney, while 9mm Owen SMGs were made by Lysaghts in Pt Kembla, and Austen SMGs were made by Metters, Carmichael, and Die Casters)
No Ammunition or Explosives were made at Lithgow, although some machining of components was undertaken for items to be filled or assembled at St Marys.

