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Mold Maker
Career Insights for Molding / Casting Worker
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Based on Iowa data
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What they do
A Molding or Casting Worker sets up and operates machines that are used to mold and cast metal or plastic parts and products.
$43,422 / year median in Iowa
+7% projected growth
Job Description
Mold Maker#26-01394
Fairfield, IA
Onsite Job Description Responsibilities:
Build new extrusion blow molds (cavities, pinch-offs, neck rings, base inserts, and related tooling) from engineering drawings, blueprints, and CAD/CAM data
Machine and fit mold components to tight tolerances, including split lines, parting surfaces, and cooling/venting features
Fit and align pinch-off areas to ensure clean parison weld and proper part flash characteristics
Perform mold repairs, modifications, and preventive maintenance, including pinch-off and cavity rework
Operate other precision machine tools as needed
Fit, assemble, and hand-finish mold components, including polishing, texturing, and engraving as needed
Drill and fit cooling/water lines and venting to ensure proper mold performance and cycle times
Troubleshoot mold issues during trial runs and production (e.g., parison distribution, pinch-off, venting, cooling) and make corrective adjustments
Read and interpret complex engineering drawings, blueprints, and mold layouts
Use precision measuring instruments (micrometers, calipers, height gauges, CMM, etc.) to verify part accuracy
Maintain detailed and accurate records of mold builds, repairs, and modifications
Follow all shop safety procedures and maintain a clean, organized work area
Collaborate with engineers, designers, and other toolmakers to meet project timelines
Requirements:
Minimum 5+ years of experience as a Mold maker or in a related precision toolmaking role; extrusion blow mold experience strongly preferred
Strong knowledge of extrusion blow mold design, construction, and function
Familiarity with pinch-offs, neck rings, cavities, base inserts, cooling/venting systems, and split-line fit
Proficiency operating lathes and other toolroom machinery
Ability to read and interpret complex blueprints, technical drawings, and CAD models
Experience with mold trials, troubleshooting, and process adjustments preferred
Strong mechanical aptitude and attention to detail
Ability to work independently and manage multiple projects/deadlines
Education:
High school diploma or equivalent required; formal toolmaking apprenticeship, trade school, or technical certification preferred We offer attractive, competitive compensation and benefits including, medical, dental, 401k, short-term disability, AD&D, tuition reimbursement, and more. If you take pride in your work and are committed to personal and professional success, let's talk. Please visit www.zobility.com to learn more. Zobility is RGBSI's workforce management and staffing division. RGBSI is a multi-national corporation headquartered in Troy, MI with branches throughout the USA, Canada, Germany, and India.
Benefits
- Financial Aid/Assistance
- 401(k) Plans
- Health Insurance
- Dental Insurance