Companies are being warned they face injury compensation claims if they do not put appropriate safeguards in place to protect employees from potentially dangerous machinery.
The warning follows an incident in which a worker at a turbocharger factory on the Isle of Wight lost part of his thumb after it became trapped in the closing clamp mechanism of the machine he was operating.
His employer, Derby-based Trucast, pleaded guilty to breaching health and safety regulations and was fined £5,000 as well as being ordered to pay £9,000 in costs.
"This case illustrates the need for employers to undertake and review risk assessments in a way that correctly identifies all of the significant risks," said Health and Safety Executive inspector Roger Upfold.
Last month, an employee at a food processing factory suffered severe lacerations, bruising and tendon damage to his left arm as a result of a lack of safety guarding on the machine he was cleaning.