The machinery is believed to have been stolen at around 9:30pm on March 16 in Strabane.
A blue DAF lorry was also stolen.
However, it has since been recovered after it was located in Co Donegal.
Inspector Ken McDermott said: “We have released photos of the machinery which is of significant value but, unfortunately, have not been located.
“If you know the whereabouts of any of these pieces of machinery or, if you’ve offered similar items for sale in suspicious circumstances, call us on 101.
“I would reiterate our appeal that when this theft was carried out, Strabane town centre was busy with people attending a fun fair.
“You can also submit a report online using the non-emergency reporting form via: http://www.psni.police.uk/makeareport/
“You can also call Crimestoppers on 0800 555 111.”Tags: