The Engineroom

Tours of the world's largest steam engine in 1849 with a cylinder diameter of 3.66 meters is the highlight of a visit to The Cruquius.

The machine drives eight balance-arms of 10,000 kg each, which provide the tentacles out stabbing. There they are connected to the pistons of eight pumps at each blow up 64,000 liters of water pumps.

After 20 years is a restoration of this impressive machine on June 4, 2002 by Crown Prince Willem-Alexander again put in motion, not steam, but hydraulically driven, so each visitor since this huge machine working to behold.