There are 2 common types of grape harvester, self-propelled or tow-behind. Both are more than capable of getting the job done and both require 2 people to use effectively. The main difference is the additional tractor needed to tow the grape harvester, which will probably be the deciding factor when considering which type to buy.
Tow-behinds are often considered the older style of grape harvester, as they do require an additional tractor to tow the harvester, in saying that they are simple to use. And, if you already operate multiple tractors, it may be more cost-efficient to get a tow-behind rather than a self-propelled machine.
Self-propelled harvesters can vary drastically in appearance, from a taller, more narrow tractor, to looking almost like an excavator (without the boom). The main feature is the archway, or gap, usually in the middle of the machine. This is where you'll drive over the grapes, with the internal mechanisms collecting grapes as you travel. They will then usually be sent along a conveyor (discharge arm), up a boom or chute, and dropped into your bin.
Of course, not all machines operate exactly the same, and some grape harvesters will come with an attached bin or catchment for grape storage. These are especially handy if you operate a vineyard by yourself and can't afford to run a second employee along with an additional tractor and attachments.
If you're looking to ensure your harvest is of the highest standard, keep an eye out for the cleaning technology built into the grape harvester. Fans are the standard cleaning equipment in a grape harvester. These are primarily used to blow away leaves and other light debris from the grapes.
Other popular features to look for are sorters and destemmers. These can help speed up the harvesting process, reduce manual destemming or sorting, and lower expenses--like having to hire seasonal workers.
With such a variety in machines, features and implements, regardless of the size of your vineyard, there's sure to be a grape harvester available to suit.
