At a pre-inquest review, held at Shrewsbury’s Shirehall this week, the court heard an investigation being undertaken by the Health and Safety Executive was expected to take another six months to complete.
John Ellery, senior coroner for Shropshire and Telford & Wrekin, adjourned the hearing to a provisional date of September 30.
The full inquest is expected to last about a week and take place before a jury, Mr Ellery added.
Mr McFarlin had been carrying out maintenance on a service lift at the factory in the Tern Valley Business Park.
Following his death Müller said it was investigating and added: “Our thoughts and deepest sympathies are with the family, friends and colleagues of the deceased.”