Mold Maintenance Technician

Kleiss High Precision LLC; Town of Grantsburg (WI); On-site; USD 28,000 - 39,000; Full time

Job summary

Kleiss High Precision LLC, a member of The Heico Companies, is seeking a skilled mold maintenance technician in Grantsburg, Wisconsin. The role focuses on disassembling, inspecting, repairing, and reassembling injection molds to meet tight tolerances for medical and industrial components, with emphasis on precision and safety.

Responsibilities include maintaining accurate service records, assisting toolmakers, and ensuring molds are ready for production schedules.

Qualifications

• Strong mechanical aptitude and hands-on repair experience.
• Comfort using hand tools, basic shop equipment, and measuring instruments.
• Ability to follow technical instructions and work with precision components.

Responsibilities

• Disassemble, clean, inspect, lubricate, and reassemble injection molds according to procedures.
• Inspect cavities, cores, slides, ejector systems for wear or damage.
• Perform basic adjustments, component replacements, and repairs within capabilities.
• Identify issues requiring advanced repair or engineering evaluation and communicate findings.
• Assist toolmakers with troubleshooting, repairs, and preventive maintenance improvements.
• Maintain mold service records and keep area organized and safe.
• Support timely mold readiness for scheduled production.

Skills

Mechanical aptitude

Hand tools

Measuring instruments

Follow technical instructions

Attention to detail

Reliability

Job description

Company Information

Heico has a history of success. Since its founding over 40 years ago, The Heico Companies has grown from a single business to over 78 separate companies through a strategic acquisition policy and by reinvesting its earnings into internal growth and new prospects. Historically talented at restoring distressed companies, Heico strategically targets acquisitions that complement its ever-growing portfolio of companies in manufacturing, construction, and industrial services.

These four core operations are organized into groups: Applied Solutions Group, Construction Solutions Group, Industrial Technologies Group, and Metal Processing Group. Once acquired, new Heico companies are assigned to a group and run on a stand-alone basis, allowing for great independence as well as the opportunity to share knowledge about markets, production processes, and management practices across other Heico groups and companies.

Heico continues to seek out new opportunities and maintain its standard of success. The Heico Companies has remained a privately held company since its creation and maintains a majority ownership in each of its operations, which generate more than $3.3 billion in annual revenues. Many of our businesses are certified Woman-Owned Business Enterprises (WBE).

The Company

Kleiss High Precision, a member of The Heico Companies' Plastics Segment, is a U.S.-based precision injection molding company specializing in tight-tolerance plastic components for demanding applications. The company combines advanced molding technologies, micro-molding capabilities, robust quality systems, and extensive experience processing high-performance engineering polymers to support customers from prototype through production. Operating from Grantsburg, Wisconsin and certified to ISO 9001:2015, Kleiss High Precision partners with customers across medical, industrial, and other regulated markets to deliver complex molded components with consistent quality, reliable performance, and responsive program support.

Position Summary

• Disassemble, clean, inspect, lubricate, and reassemble injection molds according to established procedures.
• Inspect cavities, cores, slides, ejector systems, and related mold components for wear, damage, and contamination.
• Perform basic adjustments, component replacements, and repairs within demonstrated capabilities.
• Identify issues requiring advanced repair or engineering evaluation and communicate findings.
• Assist toolmakers with troubleshooting, repairs, and preventive maintenance improvements.
• Maintain accurate mold service records and keep tools and the work area organized and safe.
• Support timely mold readiness for scheduled production.

Qualifications

• Strong mechanical aptitude and experience with hands-on equipment repair, mechanical assembly, maintenance, or related work.
• Comfort using hand tools, basic shop equipment, and measuring instruments.
• Ability to follow technical instructions and work carefully with precision components.
• Reliability, attention to detail, and interest in developing specialized technical skills.
• Prior injection mold maintenance or toolroom experience preferred but not required.

Role Boundary

Advanced mold fabrication, precision machining, major rebuilds, and complex engineering changes remain with qualified toolmakers and tooling engineering personnel.

EOE M/F/D/V

Equal Opportunity Employer

This employer is required to notify all applicants of their rights pursuant to federal employment laws.For further information, please review the Know Your Rights notice from the Department of Labor.