Equipment Technologies, a manufacturer of agricultural spraying equipment, plans to invest nearly $6.4 million in an expansion of its Mooresville operations, more than doubling its work force by 2015.

Founded in 1997, the company is the largest independently owned maker of self-propelled sprayers in North America. It already employs for than 50 at its 108,000-square-foot manufacturing facility and headquarters, and plans to add about 60 jobs as it builds a separate 50,000-square-foot warehouse and training facility.

The firm’s name-plated Apache sprayer, distributed to farm equipment retailers throughout North America, Australia and Eastern Europe, was named 2010 Product of the Year by publishers of No-Till Farmer magazine.

"Being located in central Indiana places us in the heart of our market and provides good transportation access for distribution,” CEO Matt Hays said in a prepared statement.

Indiana Economic Development Corp. offered Equipment Technologies up to $550,000 in performance-based tax credits and as much as $25,000 in training grants based on its job-creation plans. The town of Mooresville provided infrastructure assistance and property tax abatement at the request of the Morgan County Economic Development Corp.