Ag-Bag, a division of Miller-St. Nazianz, Inc.

Ag-Bag provides lower cost feed storage solutions for every size of farm. You will benefit from lower feed storage costs and less feed loss.Ag-Bag provides a way to reduce costly shrinkage and to give your cows the kind of nutritious and palatable silage they prefer. The Ag-Bag system is proven to be the ideal environment for preserving high quality, highly digestible feed that raises production and herd health levels. Ag-Bag continues to lead the industry with innovation and modern manufacturing methods. Our commitment is evident with introduction of the new X1114 Professional Ag-Bagger. Ag-Bagger - the largest - highest capacity - most productive silage bagger available today. Look to Ag-Bag for the economics of lower cost storage, significantly reduced storage losses, a convenient way to segregate feed types, and industry-lea ding resale value.

Company details

P.O. Box 127 511 East Main Street , St. Nazianz , Wisconsin 54232 USA

Locations Served

Our Distributors

Business Type:
Industry Type:
Market Focus:
Nationally (across the country)
Year Founded:

This company also provides solutions for agricultural applications.
Please, visit their profile in for more info.

Ag-Bag Corporation was founded by a group of five Agri-Businessmen who owned and operated Cattle Ranches, Dairies and Feed Mill operations as well as a manufacturing business. These five entrepreneurial men had experience with a concept that was started in Germany in the 1970's. They liked the concept of silage bagging and were very impressed with the quality of the feed. The group soon discovered the German system was too small and too slow for the U.S. market and visited the German manufacturer to request some modifications for the U.S. market. They were told “no” the machine came in one size and one style only.

The concept worked well and the quality of feed was exceptional so the five investors made a decision to form their own company. Ag-Bag International was formed in 1978. Many changes were made to the machines to adapt to the U.S. market and Ag-Bag applied for their own patents. In 1989 the company acquired the patents and purchased the business of a former competitor, Silopress.

Starting in a small trailer house on a founder's dairy in 1978, Ag-Bag quickly moved progressively thru three other larger facilities. In January of 1990 Ag-Bag moved into a new 30,000 square foot facility in Warrenton, Oregon.

Ag-Bag also had a plant in Blair , Nebraska which assembled the baggers going to the Midwest and East coast as well as warehousing the silage bags. In the fall of 1996, the Blair, Nebraska personnel moved into a 70,000 square foot facility.

In late 2004 the assets of Ag-Bag were purchased by Miller-St. Nazianz, Incorporated in Wisconsin . Miller-St. Nazianz has been in business for over 110 years serving Agriculture, Worldwide. They currently provide equipment for forage harvesting and crop application technologies.

Ag-Bag for over 30 years has been a clear leader in the silage bagging industry; Miller-St. Nazianz continues this tradition with more than just the Ag-Bag name.

As a company, we have made significant investments to surround our products with technology, from design and engineering, through manufacturing and testing. Ag-Bag products stand apart from the rest for their smart design and down to earth practicality. Their performance is industry leading, yet their design doesn't get in the way of providing for easy maintenance and service.


  • G6060 with 8' or 9' Interchangeable tunnel, pull-type with side conveyor filling
  • G6170 with 9' or 10' Interchangeable tunnel, pull-type with side conveyor filling
  • X1114 Professional self-propelled silage bagger with 14' tunnel and feed table
  • CT-5 & CT-10 Compost Baggers
  • Genuine Ag-Bag silage bags –
  • Ag-Bag Inoculant
  • Genuine Ag-Bag Parts