Foundry Operations Co-Op

A.Y. McDonald Mfg. Co. is a leading manufacturer of water works brass, plumbing valves, water systems, natural gas valves and meter bars. The company was founded in 1856 and is committed to taking care of the customer – our boss, through our growing investments of education, automation, and innovation. A career at A.Y. McDonald Mfg. Co. comes with a family friendly culture, on-the-job training, advancement opportunities, and the chance to make a difference every single day.

Summary:

• Assist the foundry staff in evaluating casting defects, reducing process variation, collecting and analyzing data and providing recommendations to management. Additional foundry related duties, such as coordinating trials, sand testing, process book information and pattern evaluations, may also be assigned as needed.

Primary Responsibilities:

Evaluating defects:

Identifying defect location

Identifying root cause of the defects

Provide recommendations for improvements

Process Variation:

Review sand testing data

Monitor sand preparation process

Data mining for process changes and scrap information

Perform sand testing in a lab setting to determine our current and preferred sand properties

Process Books:

Assist with setting up and maintaining the process books or other electronic information needed for the digital transformation project

Required Qualifications:

Be enrolled in a four year technical program related to the foundry industry. This position will require extensive computer use. Individual must be proficient with computers. A good working knowledge of foundry sand and sand testing, along with casting defects, is a plus.

Internal Candidates: To apply for an internal position, please go to the UKG website. All internal applications should be submitted by 5:00 PM on Friday, November 13, 2026.

We have two openings for this position. One is a summer internship for Summer 2027, and the second runs from May 2027 through December 2027.

Both positions are full-time, onsite at our Dickeyville, Wisconsin location, Monday–Friday, 7:00 a.m. – 3:30 p.m.