Jobs › Pentair

Molding Set Up Technician 1st Shift

Pentair · Delavan, WI · $28.00–$30.00 an hour · Full time

Posted Aug 26, 2026 · We last checked this listing on Oct 6, 2026

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Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

How do you keep documentation logs accurate during a busy shift?

What they are checking: Whether they keep records current, since logs are how problems get traced later.

Tell me about a time you caught a quality problem early during setup.

What they are checking: Whether they inspect molded features carefully before letting a run go.

How do you hand off a machine to an operator after setup so it keeps running well?

What they are checking: Whether they communicate what to watch for, which prevents problems once they walk away.

What would you do

The press is running slower than the standard cycle time. What do you look at?

What they are checking: Whether they troubleshoot cycle time sensibly and know when to call the process technician.

You're asked to change a setting that's outside the documented process window to fix a defect. What do you do?

What they are checking: Whether they stay within the validated process and escalate instead of creating an undocumented change.

About the work

Walk me through a mold change from start to finish on an injection molding machine.

What they are checking: Whether they know safe, complete changeover steps, including water lines, clamping and first-article checks.

What do you check on support equipment like dryers, welders and grinders before starting production?

What they are checking: Whether they compare support equipment to standard documentation, as the posting requires.

Walk me through a machine start-up, including the hopper throat valve and heating and cooling systems.

What they are checking: Whether they follow the start-up and shutdown sequence that protects the machine and material.

You find parts with flash after a setup. What could cause that, and what would you do?

What they are checking: Whether they understand common molding defects and how clamp, pressure and mold condition relate to them.

How do you stay safe working around heated molds, hydraulics and heavy tooling?

What they are checking: Whether they respect burn, crush and stored energy hazards during setup and tool changes.

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The full job description

As published by Pentair.

Job Description: Molding Set Up Technician 1st shift At Pentair, you will work alongside passionate problem-solvers who are committed to the future of our planet. We put our mission into practice, helping the world sustainably move, improve, and enjoy water, life's most essential resource. From our residential water filtration to industrial water management to pool products and more, our 9,000 global employees serve customers in more than 150 countries, working to help create a better world for people and the planet through smart, sustainable water solutions. We have an opportunity for a Molding Set Up Technician to join our Delavan, WI team. You will set up, process and assist in operating injection molding equipment, help inspect injection molding features to maintain quality, make any machine adjustments necessary, and change tooling as needed. You will: • Responsible for adjusting, operating, and monitoring machine performance, meeting cycle time rates, ensuring conformance to specifications, and maintaining documentation logs. • Checking production processes against standard documentation, which will include all support equipment such as dryers, welders, drilling/cutting tools, grinders, etc. • Follow machine start-up/shut down procedures as specified which may include the following: open/close hopper throat valve, turn on/off heating and cooling systems, extend/retract carriage, purge machine and ensure machines, secondary/support equipment and areas around them are clean and free of all debris (resin pellets, molded parts, water, oil, etc.) after each setup is completed. • Performing set-ups/troubleshooting for injection molding. This will include but is not limited to: purging material, removal and installation of molds, setting controls to regulate press operation which includes entering commands to retrieve or input computerized machine controls for injection molding presses as well as verifying settings match documented processes. This also includes installation of auxiliary equipment such as but not limited to chillers, heaters, and any secondary operation equipment such as, but not limited to, sonic welders, drills, grinders and hand load removal tools. • Loading programs or installing/repairing End of Arm Tools (EOAT) as well as troubleshooting robotic/automation systems. • Troubleshooting cause of operating errors and determining appropriate resolution. • Visually inspect parts and assist quality technicians with part inspection in accordance with established quality plans as needed. Must be able to read and interpret blueprints and quality documentation per Pentair policy/procedure. • Must be able to accurately use measurement tools to include the following but not limited to; micrometers, verniers, height gage, bore gage, and attribute style gages. • Communicates effectively with engineering, supervision, and manufacturing personnel in order to exchange technical information. • Responsible for performing direct manufacturing operations as needs arise along with other duties as assigned. Key Qualifications: • Have 3-5 years of experience working in a technical role in an Injection Molding environment. • High school diploma or equivalent. • Any injection molding certifications are preferred. Physical Requirements: • Walk, bend, and perform basic motor skills. • Be able to lift up to 40 pounds maximum with frequent lifting and/or carrying objects weighing up to 25 pounds. • Follow ergonomically correct postures for bending, lifting, pushing, and pulling. Shift/Hours: • 6:00am - 2:00pm Monday - Friday • OT requirements Compensation: The hourly pay for this role is: $28.00-$30.00 per hour DOE. Opportunity for a rate increase after you are proficient in certain skills and have fulfilled training. Actual pay may vary depending on factors including but not limited to achievements, skills, and experience. Benefits: As part of our comprehensive benefits packages, Pentair provides the following benefits plans and programs to eligible employees: • Paid holidays • Paid vacation • Paid sick time • Medical, Dental, and Vision Insurance • 401(k) • Up to 5% 401K match starting day one of employment • Health savings account • Life insurance • Paid time off • Caregiver leave • Prescription drug insurance • Tuition reimbursement Equal Opportunity Employer Pentair is an Equal Opportunity Employer. With our expanding global presence, cross-cultural insight and competence are essential for our ongoing success. We believe that a diverse workforce contributes different perspectives and creative ideas that enable us to continue to improve every day.

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