Stewart Steel FloThru 3ft Unload Auger Extension (12" Case-IH)
Maximise your machine's versatility and safety with the Stewart Steel FloThru 3ft unload auger extension. Specifically designed for a wide range of Case-IH® Axial-Flow combine harvesters equipped with a 12" unloading system, this high-performance add-on provides the extra reach necessary for modern high-capacity grain handling.
Manufactured in Canada, the FloThru system is a professional-grade solution for operators requiring additional clearance between the harvester and grain carts. This 36" (3ft) extension effectively increases the discharge radius, allowing for safer unloading on the move. By extending the service life of your existing equipment with this strategic upgrade, you can maintain top condition and operational efficiency without the need for a complete auger assembly overhaul.
Case-IH® Model Compatibility
Fits Models equipped with 12" Diameter Unloading Augers:
FloThru Extension Compatibility: Case-IH 12" Systems
| Series |
Models |
Specification |
| Case-IH® 14 Series |
1440, 1460 |
12" Unloading Auger Only |
| Case-IH® 16 Series |
1640, 1660, 1666, 1680, 1688 |
| Case-IH® 21 Series |
2144, 2166, 2188 |
| Case-IH® 23 Series |
2388 |
| Case-IH® 25 Series |
2588 |
Technical Specifications & Features
- Manufacturer: Stewart Steel (Made in Canada).
- Extension Length: 3 Feet (36" / 914mm) for increased discharge reach.
- Compatibility: Engineered specifically for 12" Diameter auger tubes.
- Complete Kit: Includes high-strength mounting hardware, flighting, and discharge spout.
- Safety: Reduces the risk of collision between header and grain cart during grain handling.
- Dispatch: Available for fast Australia-wide shipping from Collier & Miller.
Expert Maintenance Review
The unload auger extension is a critical upgrade for older series machines that are now operating with wider headers. The added length places increased leverage on the original auger pivot and drive system. We recommend inspecting your vertical unload auger and gearbox for worn components during every preventative maintenance check to ensure the drivetrain can support the additional weight and material volume.
Investing in a FloThru extension is a strategic way to save money and improve safety. The high-strength flighting ensures a seamless material transition, while the added reach prevents abrasion and damage to the combine's side panels or header by allowing grain carts to maintain a safer following distance. This keeps your entire unloading circuit in top condition for a longer service life.
Installation Tip: Flighting Timing
When installing the new 3ft extension flighting, ensure it is timed correctly with the existing 12" auger flighting. A smooth, continuous transition is essential for high-performance grain flow and to prevent grain cracking or "slugging" at the joint. This is the ideal time to check your unloading auger drive belt tension to ensure it can handle the increased load.