Sinker EDM Specialist

Description MISSION & CORE VALUES: We strive to provide our business partners the mold design and build experience they expect and deserve. When our partners are successful, we are successful. JOB PROFILE SUMMARY: The Sinker EDM Specialist is responsible for operating and maintaining sinker EDM (Electrical Discharge Machining) equipment to produce high-precision mold components.

This role requires a deep understanding of EDM processes, electrode design, and fine-tolerance machining. The Sinker EDM Specialist plays a critical role in supporting the production of complex injection molds with tight dimensional and surface finish requirements. ESSENTIAL JOB DUTIES: The individual in this position must be able to successfully perform the job duties listed below.

Responsibilities

Set up and operate sinker EDM machines to produce mold components to exact specifications. Interpret blueprints, CAD models, and work instructions to determine machining requirements. Design and fabricate electrodes using graphite or copper materials. Monitor EDM operations and make adjustments to maintain accuracy and surface finish.

Inspect finished parts using precision measuring tools and ensure conformance to tolerances. Perform routine maintenance and troubleshooting of EDM equipment. Collaborate with toolmakers, CNC programmers, and engineers to optimize EDM strategies. Maintain accurate records of setups, tooling, and job progress.

Requirements

Work Experience: 5+ or more years of related experience Related Experience: Experience in sinker EDM operations, mold making, or precision machining.

Education

Associate degree from a two-year college or technical school Preferred educational background: Technical diploma or certification in mold making, machining, or EDM technology. Certifications/Tech expertise: Proficiency in sinker EDM machine operation (e.g., Sodick, Makino, Mitsubishi) Knowledge of electrode materials and design Familiarity with precision measuring tools and inspection techniques Understanding of mold design and steel types PREFERRED QUALIFICATIONS: Experience with Makino Sinkers a Plus Strong attention to detail and craftsmanship Ability to work independently and as part of a team Experience with automated EDM cells and integrated metrology Good communication and documentation skills PHYSICAL DEMANDS: Frequent standing, bending, and lifting (up to 50 lbs.)

Use of hand tools, measuring instruments, and PPE Exposure to manufacturing environment conditions