The Central App

Taking the strain for 100 years

The Central App

03 January 2025, 5:45 PM

Taking the strain for 100 yearsThe Smooth Grip Chain grab wire strainer. PHOTO: GRANT SHEEHAN

The end of 2024 marks the 100th anniversary of the production and sale of a Kiwi farming icon.


It is exactly a century since the E. Hayes and Sons Smooth Grip Chain grab wire strainer appeared on the New Zealand market – rapidly becoming an essential agricultural tool found in virtually every farm around the country, and which is still sold today.



Hayes Engineering – the farmstead and workshop where millwright Ernest Hayes and his descendants pioneered many of his Kiwi ingenuity inventions – is cared for by Heritage New Zealand Pouhere Taonga and is open to the public.


“Based at Oturehua in the Maniototo, the Hayes family were in a situation where they had to fence their entire farm,” manager heritage assets Southern for Heritage New Zealand Pouhere Taonga Jess Armstrong said.


“Wire fence construction may appear simple but it can be difficult. Ernest quickly began designing and constructing equipment to find solutions to the challenges he faced – always focused on saving farmers time, energy and money.”



Wire strainers had been around since the 1890s – though Ernest’s innovative and inventive mind produced a real game-changer.


“The Smooth Grip Chain grab wire strainer was the result. In no time at all it became incredibly popular with farmers and fencers for its simple to use and dependable design, Jess said.


“This strainer helped to make Hayes a household name in farming communities and has been exported to 30 different countries.


“In 1981 it was given a Designmark award from the New Zealand Industrial Design Council – the ultimate recognition of Ernest’s genius for design.”



The anniversary of Ernest Hayes’ legendary wire strainer coincides with Hayes Engineering coming alive again for the summer season after months of winter ‘hibernation’. 


The cradle of ‘Number 8 wire’ innovation in the late 1800s, Hayes Engineering is an unmissable heritage attraction for people on the Otago Central Rail Trail and visitors in the Ida Valley area.


Today, this Tohu Whenua has become a kind of living shrine celebrating the inventiveness and the ingenuity of Hayes and his descendants. 


The still-functioning workshop was originally used by employees to manufacture Kiwi farming equipment, and visitors today can still enjoy the mechanical and engineering delights on display in what has to be the ultimate Kiwi shed.


Ernest Hayes’ innovation didn’t stop with his farm products. 


Visitors can also enjoy exploring the unique Hayes homestead together with its own inventions and innovations.