Glossbrook Engineering, founded in 1976 and based in Bathgate, West Lothian, already supplies plastic injection mouldings and product design for various components to industries ranging from oil and automotive to electronics, leisure and local authorities.
The new 500-tonne piece of machinery, backed by Bank of Scotland's Asset Finance team, will allow the business to take on more specialist work in large mouldings.
Simon Kenny, financial director at Glossbrook, which employs 24 and has a turnover of around £1 million, said: "This is an exciting time for Glossbrook Engineering. Continued investment in our plant and equipment is helping us to develop the business by taking on more specialist contracts and establishing ourselves as the UK market leader in a highly specialist industry and a key supplier to the electronics industry overseas.
Glossbrook said it has recently secured a contract for work with Livingston based Funky Moves. That company, which has featured on Dragon's Den, produces interactive fitness games with its Funky Cones product targeted at the primary school market.
Stuart McNaughton, from Bank of Scotland, said: "Glossbrook Engineering is going from strength to strength with its focus on technology investment.
"We've worked with Glossbrook Engineering for over three decades now and we're confident that they'll continue to expand the business across the UK and beyond following their latest investment."