WITH rotary models now representing more than 90pc of new combine harvesters sold each year, it is not surprising this trend is being reflected in used combine sales.
Significant savings can be made buying a used harvester, but investing in a used Case IH axial-flow offers additional advantages, according to Case IH hay and harvest product manager Geoff Rendell.
"It's taken time, but we're heading towards 100pc acceptance of rotary technology," Mr Rendell said.
"The axial-flow advantages we've been talking about, such as simplicity of operation and reliability, better grain quality, grain savings, crop adaptability and matched capacity, are delivering productivity and cost benefits to farmers like never before.
"And they take on a whole new level of significance when you consider a used axial-flow.
"Because of its simple design, axial-flow combines operate smoothly, with fewer moving parts than a conventional combine, resulting in less wear and tear."
Although the basic concept of the axial-flow combine has stayed the same, Case IH engineers have made hundreds of improvements over the years.
They have focused on increasing durability, improving up-time and productivity and ensuring a comfortable work environment for operators.
More than 200 different parts kits are available to sustain or enhance the performance of an axial-flow combine.
This easy upgradeability is a major selling point for used machines. Owners can take their older used model and retrofit it with latest technology for maximum performance.
"A good example of this is the latest AFX rotor, which can be installed in 1688, 2188 and 2388 models," Mr Rendell said.
"The AFX rotor boasts up to 25pc increased throughout, improved fuel efficiency and reduced wear.
"The benefits are attributed to the rotor's graduated pitch impellers, which gently sweep the crop away from the feeder chain and rotationally move it into the threshing area, virtually eliminating any hesitation of the crop mat in the transition cone.
"This smooth, consistent flow of material helps the rotor to run quieter, while reducing horsepower requirements and improving fuel efficiency."
Case IH also incorporates modifications that respond to changes in local market conditions.
For example, Case IH recognised the trend in Australia towards growing legume crops like lupins, chickpeas and field peas, which are harvested close to the ground and are more abrasive on the machine due to the dust involved.
So in 1990, Case IH enhanced the transition cone on all grain combines, fitting the rice cone as it provided added durability due to its abrasive resistant material.
Competitive parts pricing and access to service expertise are other important considerations when buying used.
"Customers can be assured that their Case IH dealer is expertly trained and has a long history of working with these machines," Mr Rendell said.
"They understand the set up and operation, including adapting the machine for various cropping conditions.
"Their service teams undergo extensive training in regular maintenance and repair and sufficient parts stocks are assured."
A Kondinin Group study found Case IH replacement parts for 2366 and 2388 models were thousands of dollars cheaper than their competitors, especially considering some brands did not include the full complement of parts in the sample basket.