The mills produce around 2-million tonnes of raw sugar, of which 1.25-million tonnes is railed by PN from the four Burdekin mills and Proserpine. Another 550,000-tonnes is railed on Wilmar's 2ft gauge Herbert Valley network to the Port of Lucinda. The Plane Creek Mill is Wilmar's only mill using road to transport its sugar output.
In the Burdekin, the four mills crush more than 8-million tonnes of sugar cane, with the largest, Invicta, processing up to 3.2-million tonnes. This mill's mainline to the Burdekin Valley carries more than 3-million tonnes of cane in little more than five months, and just for its day shift rosters 13 locomotives. Its receival and departure yards handle some 6,000 cane bins between them each day.
Wilmar's locomotive fleet includes 14 ex-QR DHs, with 12 on 2ft gauge; 8 ex-NSWGR 73 class on 2ft gauge; 2 ex-WAGR M class on 2ft gauge; and Mount Isa Mine's 5803, an unique GH500 model with a 73 class cab and body, now used for maintenance trains on Wilmar's 3ft6 gauge 20-tonne axle load bulk sugar branches in the Burdekin.