FAQs

AgSteel sells directly to orchardist and vineyard managers, delivering directly to site. We embrace building long standing relationships with our clients and are able to offer a personal service and customised product offering.

AgSteel offers several strainer options for vineyards, such as an internal stay, tie back and box end assemblies.

AgSteel clip attachment has been strength tested and shown to provide excellent holding strength. The 10g tek screw through the clip provides strong holding power and shear strength ensuring the clips will stay securely in place.

We have designed the Vineposts to allow for the use of the Klima machine. The posts tear drop design allows for the commonly used Klima screw in clip, installed with a tek screw, to be used on the posts.

With over 30 experience in the wider horticulture sector, Ag-Steel’s initial vineyard post was developed in 2005. The current Vinepost has been designed following input from the industry, with performance features such as the stronger rolled top, tear drop screw in clip solution, post rotation hole and strong star point end for driving into the ground.

Agsteel Vineposts can be expected to last for a minimum of 15-20 years, and are expected to last a lot longer. Once removed they are fully recyclable.

AgSteel products are made in New Zealand, from a high strength steel, grade 310, with a zinc coating of 450 g/m². The standard wall thickness is 1.15mm but this can vary by product.

To help orientate the Vine posts when installing, there is a 6mm orientation hole. This allows the posts to be rotated once driven in and can be completed using a screwdriver.

The AgSteel Vine Post star point improves installation performance when driving into stony/rocky soils, as it displaces the soil around the tube.

Ag-Steel Vineposts have extended an rolled top, compared to other products on the market, which helps with driving of the posts into the ground and prevents bird netting from snagging.

The typical vineyard intermediate post spacing in New Zealand is 7.2 metres.

When completing the Vinepost order form, the customer can select specific clip spacing to meet requirements. These can be made custom to the customers specifications.

Most vineyards commonly opt for the 2.1 and 2.4 metre posts although we do have 1.8 and 2.7 metre posts available. Consult with us if you are after different lengths as all our orders are made custom for clients.

Light surface rust does occur with time, this is perfectly normal but won’t affect the quality of the tube itself. The rust can be easily removed by using a scouring pad and applying a light oil coating afterwards.

Standard galvanised tube is manufactured with Z275 coil, which has a minimum of 275gm2 of zinc. Heavier galvanised coated tube can be manufactured ex mill rolling. Please contact our sales team for more information on order quantity and lead time. They’re always happy to help.

In damp or moist conditions, a white powder can form on a galvanised surface. This must be cleaned down prior to painting or powdercoating. To help prevent the white powder from appearing, galvanised tube should be stored with spacer between steel surfaces.

Industrial Tube’s standard tube length is invoiced at 5.5 metre lengths but, each tube is approximately 50mm longer so customers can trim the cropped ends if required. Special lengths are available ex-rolling. Non-standard cut to length tube is also available with our value-added precision cutting service. Our team can provide this service for you should you require.

Industrial Tube’s standard products are rolled every four to eight weeks. Where possible, we will add specialist lengths to these rolling cycles. If you require a particular length produced, please contact our sales and production team for more information.

The shortest length is 4 metres for carbon and stainless. The longest length for carbon is 12 metres, whereas the longest length for stainless is between 8-12 metres, dependent on the diameter. Contact our sales and production team for more information.

All tube sold by Industrial Tube is manufactured in New Zealand in our Hamilton factory. This has been the case since we began and contributes to the 35 year history we are extremely proud of.

CRA mild steel is typically used for applications that require a higher-grade surface finish for improved application of coatings, tight dimensional OD and ID tolerances (telescoping) and superior formability and ductility.

Pre-Galvanised steel is used in many applications where corrosion resistance, tight dimensional tolerances and/or formability are important.