It is believed the man in his 50s was loading the roller onto a tray truck in a depot yard when he was crushed.
WorkSafe is investigating the incident.
The man's death brings to 21 the number of Victorians killed at work this year, compared to 24 for the same time last year.
It's the second workplace fatality within a week in regional Victoria. The body of a man in his 50s was found on a property at Yarck last Thursday morning. It's believed he died after falling off his motorbike.