Isis Central Mill
| Isis Central Mill | |
|---|---|
|
| |
| Location | |
| Coordinates | 25.19471° S, 152.20780° E |
| State | Queensland |
| Region | Southern Region |
| LGA | Bundaberg Regional Council |
| Details | |
| Established | 1897 (129 years ago) |
| Owner | Isis Sugar |
| Gauge | 610 mm (2 ft) |
| Annual Crush | 1,250,000 tonnes season average |
Isis Central Sugar Mill
Isis Central Sugar Mill is a raw sugar factory located in the locality of Isis Central, approximately 8 kilometres northwest of Childers, Queensland. Established in 1897, it is the only remaining sugar mill in the Childers district and one of the few remaining locally-owned milling cooperatives in Australia (Isis Central Sugar Mill Company Limited).[1] The mill processes cane from the Childers, Cordalba, and Coringa districts, and recently expanded its supply area to include the Maryborough region.
Origins and Establishment
The development of the Isis Central Mill was driven by local cane growers who were dissatisfied with the prices offered by the Colonial Sugar Refining Company (CSR), which operated the nearby Childers Mill. In 1896, growers formed the Isis Central Sugar Mill Company Limited and utilised the Queensland Government's Sugar Works Guarantee Act 1893 to secure funding for their own facility.[2]
Construction began on a site chosen for its proximity to the Isis Scrub cane lands and water supply. The mill commenced its first crushing season in 1897. It was an immediate success, fostering a strong cooperative spirit among the local farming community that persists to this day.
Expansion and Consolidation
Throughout the early 20th century, the Isis district was serviced by several smaller mills, including CSR's Childers Mill, Goodwood Mill, and Doolbi Mill. Over time, Isis Central expanded its capacity and efficiency, gradually becoming the dominant processor in the region.
- 1932: The mill became fully grower-owned after the government debt was repaid.[3]
- 1933: CSR closed the Childers Mill, and its cane supply was transferred to Isis Central, significantly boosting the cooperative's throughput.
Modern Era
The mill has continued to modernise to remain competitive in the global market.
- Network Expansion: In 2012, the company completed a major railway extension to the Wallaville district, allowing it to compete for cane that was previously crushed by Bundaberg Sugar's Bingera Mill.
- Maryborough Expansion (2020): Following the closure of MSF Sugar's Maryborough Mill in 2020, Isis Central Sugar Mill secured the cane supply contracts for the Maryborough region. To facilitate this, the mill invested in logistics to transport cane from Maryborough to the Isis factory, effectively doubling its catchment area and securing its long-term viability.[4]
Seasonal Crush
Isis Central is a high-capacity factory relative to its size.
- Average Crush: The mill typically processes between 1.1 million and 1.4 million tonnes of cane per season.
- Record: In the 2016 season, the mill crushed over 1.35 million tonnes. With the addition of the Maryborough cane, the mill targets a throughput of over 1.2 million tonnes annually, depending on seasonal rainfall.[5]
Tramway Network
The mill operates an extensive 610 mm gauge tramway network of approximately 160 kilometres.
- Geography: The network traverses the steep and undulating terrain of the Isis Scrub, requiring high-powered locomotives.
- Fleet: The mill is renowned for its fleet of rebuilt DH diesel-hydraulic locomotives (originally ex-Queensland Rail) and Clyde locomotives. It features some of the heaviest grades in the Australian sugar industry, necessitating the use of "brake wagons" (weighted wagons) on cane trains to ensure safe braking on the steep descents.[6]
Location
Rollingstock
| Name | Builder | Model | Serial | Year | Current Mill | Notes |
|---|---|---|---|---|---|---|
| D1 | Walkers | GH500 | 602 | 1969 | Isis Central Mill | Last rebuild by Isis - 1994 |
| D2 | Walkers | GH500 | 598 | 1968 | Isis Central Mill | Rebuilt by Walkers - 1994 |
| D3 | Walkers | GH500 | 600 | 1968 | Isis Central Mill | Rebuilt by Walkers - 1994 |
| D4 | Walkers | GH500 | 656 | 1970 | Isis Central Mill | Rebuilt by Walkers - 1994 |
| D5 | Walkers | GH500 | 617 | 1969 | Isis Central Mill | Rebuilt by Isis Mill - 1999 |
| D6 | Walkers | GH500 | 617 | 1969 | Isis Central Mill | Rebuilt by Isis Mill - 2002 |
| D9 | Clyde Queensland | HG-3R | 75-812 | 1975 | Isis Central Mill | Stored. 2022. |
| D10 | E.M. Baldwin | DH24B | 7267-1-6-77 | 1977 | Isis Central Mill | Navvy duties. |
| D11 | E.M. Baldwin | DH28B | 10130-1-6-82 | 1982 | Isis Central Mill | |
| 1 | John Fowler | 20776 | 1935 | Out of service | Unknown location | |
| 2 | John Fowler | 4110019 | 1950 | Out of service | Unknown location | |
| 3 | Clyde | DHI-71 | 55-66 | 1955 | Out of service | Unknown location |
| 4 | Clyde | DHI-71 | 56-113 | 1956 | Out of service | Unknown location |
| 5 | Clyde | DHI-71 | 58-191 | 1958 | Out of service | Unknown location |
| 6 | Clyde | DHI-71 | 59-204 | 1959 | Out of service | Unknown location |
| 7 | Clyde | DHI-71 | 61-220 | 1961 | Out of service | Unknown location |
| 8 | Clyde | DHI-71 | 64-385 | 1964 | Out of service | Unknown location |
| 9 | Stewart Sharp & Co | 4619 | 1900 | Out of service | Preserved 1979 | |
| Brake Van 1 | Walkers | GH500 | 654 | 1970 | Isis Central Mill | Converted by Isis Mill - 1995 |
| D7 | Walkers | GH500 | TBA-4 | 2024 | Isis Central Mill | Newly rebuilt 2025. No further information. |
References
- ↑ Isis Central Sugar Mill, Company Profile, ICSM Ltd, 2024.
- ↑ The Queenslander, The Sugar Industry: Isis Central Mill, National Library of Australia, 1897.
- ↑ Isis Central Sugar Mill, Our History, ICSM Ltd, 2024.
- ↑ ABC News, Maryborough sugar mill to close, Australian Broadcasting Corporation, 1 April 2020.
- ↑ Isis Central Sugar Mill, Production Reports, ICSM Ltd, 2023.
- ↑ Light Railway Research Society of Australia, Queensland sugar cane railways today, LRRSA, 2020.