In 1990 on their farm, Michel and Pierre Calvet began to manufacture bale grabs for wrapped silage bales as the process of wrapping bales was just starting. Located in an area with a large number of cattle farms gave them an instant market for their high quality products.
As the number of farms using round silage bales grew, a request came for a machine to unwind the round bales to feed to the cattle and in 1993, the first DR160 round bale unwinder was sold.
In 1995, after more consultation with their farmers/customers, it was discovered that some of them were also using the Altec to spread straw. There were already good straw spreaders on the market, so the question was, why use the Altec? It was because the Altec could spread straw silently, without dust and stone ejection and that the machine did not frighten the animals. A request came for a straw spreader option and the “lateral” spreader was developed, as well as the twin “radial” spreaders which can spread straw up to 15 or even 20 feet (4.5 - 6m). The demand for Altec straw spreaders grew rapidly because they were quieter and did not shred the straw, resulting in a healthier atmosphere for the animals and the farmer. More than 8000 in use since 1993.
By 1996, large square bales were becoming popular and Altec made the DR120 that can unwind and spread both round and square bales.

DR160S-LRSQ for 48” wide bales
DR160S-LRSQ for 60” wide bales

* Can also be used as a standard right hand discharge model.
My Altec 160S unwinder, I can round bale my hay, then can put it in the barn. With my unwinder, we can square bale, load on the trailer and off the trailer as needed. It saves time, labour and stays fresher.
Fred Boyd
Boyd Ranch, Summit City, MS
Altec has the largest range of bale handling equipment of any manufacturer worldwide. Let us know your requirements


DR160SR-F showing rear discharge

Optional axial straw spreader.

DR160SR-F allows for right hand or rear discharge with offset 3 point hitch.

Options for DR160S
DR160S for 48” wide bales
DR160S for 60” wide bales
DR160SR-F for 48” wide bales
DR160SR-F for 60” wide bales




Altec DR160A with loader arm, unwinding hay. Can also spread straw.

Unwinding Silage Bales

Spreading with optional lateral spreader spreads straw up to 7 Metres away.
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Optional conveyer belt
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DR160A for 48” wide bales |
DR160A lateral for 48” wide bales |
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Options for DR160A
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Optional hydraulic loader arm adjustment. |
Optional conveyor belt for bunker feeding. |
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Loader arm in down position. |
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Feeding or spreading more than one bale? Mount the all hydraulicly powered Altec DR160A on the loader arms of your tractor to take multiple bales from a drawbar trailer. Tow the trailer to where the bales are needed, then use the Altec's self loader arm to feed the Unwinder. |
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Front mount capable


Rear discharge

Optional Hydraulic swing
DR160PA for 48” wide bales
DR160PA for 60” wide bales

Side discharge / lateral straw speader
Options for DR160P: Hydraulic swinging mechanism, Mounting for telescopic handler, Lateral straw spreader, Axial straw spreader



DT120 is able to unload large square or round bales with ease.

DT120 without optional axial straw spreaders.

DT120 with optional axial straw spreader.

DT120 for 48” wide bales
DT120 Axial for 48” wide bales
Options for DT120: Axial (radial) straw spreader to spread straw up to 16.25 - 19.5’ (5 - 6m) wide
© The St. George Company Ltd. | Toll Free 800-461-4299 | Phone 519-442-2046 | Fax 519-442-7191