Agricast’s double drive ring reinvents the wheel

Agricast has reinvented the wheel this month with the launch of its Double Drive Ring (DDR).

Using the established Double Disc (DD) ring as its starting point, the new Agricast product takes advantage of the patent expiry on the original, while respecting the active registered design.

The new DDR has taken over 18 months to develop and offers greater durability and enhanced poor weather performance at a much cheaper cost than the original DD design.

Agricast’s DDR achieves better traction by having small cutaways which were not present on the original design. These cutaways or scallops also improve the wheel’s ability to shatter or fissure hard, dry soil effectively.

Like the original Simba DD ring which was designed for use on Double Press and CultiPress packers, Agricast’s DDR is a registered design and available in two sizes – 610 and 710mm diameters.

“We’ve been working on this new product for quite some time,” says William Robinson, general manager at Agricast. “We’ve been conscious that the patent was coming to an end which would allow us to offer a better performing product at a cheaper price point. Obviously, we were aware and respectful of the registered design which still applies to the Simba Great Plains DD ring preventing people directly copying it.”

As well as being around 30% cheaper than the original , Agricast’s Double Drive Ring offers greater durability, being 6mm thick rather than 5mm. “With 20% more metal in these rings to start with we are offering a longer lasting product that will not wear through as quickly on the shoulders,” says William.

Introduced in the late 1990s, the patent on the original Simba DD ring meant farmers were limited in their choice of replacement wheels- until now. The patent’s expiry will enable farmers to save money by purchasing wheels produced by non-original equipment manufacturers.

The Agricast DDR’s are manufactured from heat treated Boron steel, which because they work more passively than a disc blade, will offer greater longevity when compared to cast ring wheels. Like the previous version, Agricast’s DDR is a closed wheel, preventing stones from jamming in them, which can happen with cast rings.

Fully compatible with all existing parts and axles, the Agricast Double Drive Ring is available to pre-order now in both 610mm and 710mm diameters via or by phoning 01673 857619.


Get Our E-Newsletter - breaking news to your in-box twice a week
Will be used in accordance with our Privacy Policy

About The Author

John Swire - Editor of Agronomist and Arable Farmer as well as responsibility for the Agronomist and Arable Farmer and Farm Business websites. After 17 years milking cows on the family farm John started writing about agriculture in 1998 and has since written for a variety of publications and has developed a wide circle of contacts within the industry. When not working John is a season ticket holder at Stoke City and also of late has become a fitness freak, listing cycling, swimming and walking as his exercises of choice.