Since 2009, NZ Tube Mills product development engineers
have worked closely with winegrowers and viticulturists to develop
ECO TRELLIS® steel posts and wire clips. Their research involved
intensive testing of steel posts used in New Zealand vineyards to
analyse success and failure rates in extreme weather conditions and
thus determine a safety range for the ECO TRELLIS® post design.
Research and testing covered:
- Strength in high winds
- Load-bearing capacity for full canopies
- Ability to withstand machine-harvesting – unlike wood, the steel post can flex and maintain its strength
- Appropriateness to coastal vineyard regions with overtly saline soils
- High static wire tension to avoid wires sagging Ease of installation and ongoing maintenance
- Development of a patented footing at the base of the strainer and use of intermediate posts to provide up to four times more retention than alternative systems
-
We are impressed by the a!ordability of the posts and to have the complementing end assemblies without having to fall back to CCA-treated posts is a big advantage.
Prue Henschke - Viticulturist Henschke Wines, South Australia
