About Us

David Robertson

David Robertson has been a Darling Downs grazier for 13 years and is owner operator of Robertson Farm Engineering. David has extensive experience at mechanical engineering, and has designed and manufactured a range of Agricultural machinery including mounted harrows and grain handling equipment. He has used this skill and experience to test and refine the design of the Quadbar. He and his wife, Sandy, have established QB Industries who are responsible for the manufacture and marketing of the Quadbar.

ATVOE

Together Robert Parkinson and David have formed ATVOE which holds the intellectual property rights to the Quadbar.