A bale wrapper is a farm implement for wrap

Wrap

Wrap is something in which an object is encased, enclosed, or covered.Wrap may also refer to:-Storage and preservation:* Overwrap, a wrapping of items in a package or a wrapping over packages...

ping bale

Bale

- Places :* Bale , a small town in Croatia* Bale, California, in Napa County* Bale, Norfolk in England* Bale, Poland* Balé Province, Burkina Faso* Basel, the Swiss city, for which the French name is Bâle-Ethiopia:* Bale Mountains...

s in plastic, for them to turn into silage

Silage

Silage is fermented, high-moisture fodder that can be fed to ruminants or used as a biofuel feedstock for anaerobic digesters. It is fermented and stored in a process called ensiling or silaging, and is usually made from grass crops, including corn , sorghum or other cereals, using the entire...

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The wrapper has a loading arm, much like a bale handler, at the side, that scoops up a bale and places it on the wrapping table. The wrapping table usually consists of two rollers, and four belts which slowly spin the bales while the table itself revolves. As the bale turns, plastic

Plastic

A plastic material is any of a wide range of synthetic or semi-synthetic organic solids used in the manufacture of industrial products. Plastics are typically polymers of high molecular mass, and may contain other substances to improve performance and/or reduce production costs...

 film

Film (disambiguation)

A film is a story conveyed with moving images.Film may also refer to:- Science and industry :*Biological membrane, a thin layer in living organisms.*Plastic wrap, sheeting used in the packaging and other industries....

 is pulled through the dispensing unit and wrapped tightly on the bale. When the table has revolved at least 16 times, the bale can be ejected. This is done by a hydraulic ram

Hydraulic ram

A hydraulic ram, or hydram, is a cyclic water pump powered by hydropower. It functions as a hydraulic transformer that takes in water at one "hydraulic head" and flow-rate, and outputs water at a higher hydraulic-head and lower flow-rate...

 which tilts the wrapping table, so that the bale can be tipped off. The film is cut and then tied to the wrapper for the next bale.
All this is controlled via a computer inside the cab of the tractor

Tractor

A tractor is a vehicle specifically designed to deliver a high tractive effort at slow speeds, for the purposes of hauling a trailer or machinery used in agriculture or construction...

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