The firm made £110 million in 2005 - up from £55 million the previous year - making more than 45,000 machines.
The Staffordshire-based company also pushed turnover up 23 per cent to £1.42 billion from £1.15 million in 2004 and consolidated its position as the world's largest manufacturer of back-hoe loaders.
JCB is now the world's 4th largest construction equipment manufacturer and increased global market share from 8.6 to 9.6 per cent.
Managing director and chief executive officer John Patterson said: 'The record year of 2005 was built on a foundation of always striving to increase our sales and achieving new targets will mean growing this company significantly over the next five years.
'In 2001 we manufactured just 120 different products. We have now more than doubled the models offered to 257. We therefore have the range of machines to push JCB to new heights and to build on the success we enjoyed in 2005.'
The company has 17 plants on four continents - 10 in the UK, three in India and others in the USA, Brazil, China and Germany.