Dealer Locator

News & Events

Why SDI?


Meet The Team

Read more about the Team that takes pride in producing only the highest-quality equipment for your operation.

Melvin Waldner



Melvin has been in the swine industry for over 30 years. Growing up within the swine industry, he had a vision for creating a feeding system that was built with quality and could meet the demand of the fast changing industry. Over the last 30 years he has seen huge changes within the industry. The need for high quality feeding equipment has moved to the top of the list for meeting the demands of hog producers. The cost of feed has changed the feed product needs. SDI’s feeders meet the needs our producers are looking for in weight gains, quality and durability. Melvin’s vision has carried over to SDI through the last 12 years in building a company that meets the same standards as our feeders. Through Melvin’s vision, we continue to meet the high standards of our producers and to carry that vision of quality, integrity and customer satisfaction throughout SD Industries.

Kenny Waldner

VP, Head of Engineering


Coupled with years of experience as a hog barn manager, farmer, and then as a fabricator; Kenny grew up surrounded by machinery and loves technology. He understands our CNC equipment inside/out. Kenny & Melvin have worked together closely for 20 years as an innovative team. Kenny has been with SDI since the day it was just a thought process & dream. He was working as a senior design engineer for a firm in PA and helped Melvin design products as ideas morphed into reality. His design and engineering background has taken SDI concepts of feeding hogs to a new level. Kenny wears many hats at SDI as our design engineer, network and IT manager, product development supervisor, quality inspector and ensures all equipment is up to date and running. Kenny’s years as a barn manager gave him first-hand experience of what works and what doesn’t. Kenny is always excited to look at new ideas and concepts within the manufacturing arena. Delivering quality products and satisfied customers is his end goal!

Brian Stork



Brian is an innovative executive with expertise in increasing brand exposure, enhancing profitability, developing strategic initiatives, and growing business to high-quality efficiency. He has a proven track record aligning company cultures with core values and is dedicated to maintaining a reputation built on quality, service and uncompromising ethics. As a visionary and strategic leader, he is able to translate business strategies with best interests in mind for business partners, customers and employees.

Aaron Waldner

Procuring Agent & Sales Rep


Aaron has been with the company from the start of our first feeder. Aaron has worked in all departments including delivery, welding, shear operator, press brake operator, maintenance, production manager, warehouse manager, sales and purchasing. Aaron’s philosophy is that the only way SDI can succeed is to help its customers be successful. SDI is very blessed to have Aaron on our team.

Tyler Laffey

Sales/Marketing Representative


Tyler is a sales professional who grew up and has lived in South Dakota for the majority of his life. He is excited to work with a family owned company right in his home state. With 14 years of sales experience, we are fortunate to have him on the team. Tyler enjoys working with our dealers to meeting your sales needs.

Michael Ulrich

Regional Sales Representative


After eight years of Sales & Customer Service at SDI headquarters in SD, Michael moved with his family to Michigan at the end of 2015 and assumed the role of regional sales rep for the eastern US, eastern Canada, as well as some international markets. He continues to work in support of our expanding Dealer network and SDI brand equipment in that territory. He is truly a man of integrity and has gained the respect and trust of our dealers and their customers.

Sherry Ainslie

Customer Service Representative


Sherry joined the team with extensive experience working with large and small companies. She is highly committed to providing SDI customers with a personal level of customer service. In her spare time, you can find Sherry spending time with her children, hunting and fishing.

Chris Dalland



Chris has over seventeen years of experience in a production setting serving as a laborer, drafter, supervisor, quality control and engineering all starting at the age sixteen. Chris works with the production staff and engineering to continuously improve the process and products to better serve the customer.

Lisa Brown



Lisa is thrilled to join the SDI Administrative team after several years of observing the business grow and succeed in the rural Alexandria area. With 28 years of past accounting experience, Lisa will compliment this position, especially in the areas of payroll, A/P, A/R, and company financials. A family-friendly environment, an energetic team, and a passion for pigs were the drawing factors that brought Lisa closer to her home and family. She’s anxious to learn and get to know you!

Jill Letcher



Jill comes to us with a lengthy history of customer service in a variety of fields. She is excited to join a family owned business so close to home. Jill looks forward to learning more about the products and assisting the customers of SDI. Stop in or give us a call and Jill will do what she can to assist you.