Sinker EDM Operator

Description Matrix Plastic Products is a quality-driven custom manufacturer of ultra-precise plastic components and subassemblies for medical devices and other mission-critical applications. Our specialties are plastic injection molding, mold making, and assembly. Founded in 1978, we are looking for an experienced Sinker EDM Operator to help run projects through our EDM department. The Sinker EDM Operator is responsible for setting up, programming, and operating Sinker EDM equipment to manufacture, modify, and repair precision components used in plastic injection molds. This position works closely with mold makers, CNC machinists, engineering, and quality personnel to produce high-quality tooling that meets customer specifications and production schedules.

Key Responsibilities

• Set up, operate, and monitor sinker EDM machines to manufacture precision mold components.
• Interpret blueprints, CAD models, GD&T, and work instructions.
• Install, align, and qualify electrodes and workpieces.
• Create, edit, or optimize EDM programs using machine controls and/or CAM software.
• Verify dimensions and surface finishes using precision measuring equipment including micrometers, calipers, indicators, height gages, and other advanced measurement equipment when applicable.
• Perform routine machine maintenance and maintain proper machine cleanliness.
• Troubleshoot machining and process issues to ensure dimensional accuracy and efficient production.
• Collaborate with mold makers during new mold builds, mold repairs, engineering changes, and production tooling support.
• Document machining parameters, inspection results, and completed work accurately.
• Maintain a safe, clean, and organized work environment.
• Participate in continuous improvement initiatives to improve quality, efficiency, and safety.
• Comply with all company policies, safety procedures, and quality standards.

Requirements Required Qualifications:

• High school diploma or GED required; technical training in machining, mold making, or manufacturing preferred.
• Three (3) or more years of sinker EDM experience in a mold making or precision machining environment preferred.
• Experience with plastic injection mold construction and repair strongly preferred.
• Ability to read and interpret engineering drawings, GD&T, and technical specifications.
• Working knowledge of EDM machining principles, electrode design, and precision tooling.
• Experience machining hardened tool steels and using graphite and copper electrodes.
• Familiarity with CAM software such as NX, SolidWorks, or similar.
• CNC machining is a plus.
• Strong mechanical aptitude, attention to detail, and problem-solving skills.
• Ability to work independently while contributing effectively within a team environment.

Physical Demands / Working Conditions

• Ability to remain in a stationary position or move throughout the manufacturing facility during the workday.
• Frequently position oneself to inspect, load, unload, and set up tooling and machine components.
• Frequently operate machinery, computers, and precision measuring instruments requiring manual dexterity and hand-eye coordination.
• Frequently communicate with coworkers regarding work instructions, production status, and safety information.
• Ability to visually inspect machined components, tooling, and measuring equipment, including distinguishing fine detail.
• Occasionally lift, carry, push, or pull materials and tooling weighing up to 50 pounds, with or without assistance. Mechanical lifting devices are available and should be used when appropriate.
• Work in a manufacturing environment with exposure to machine noise, oils, coolants, metal dust, and varying temperatures.
• Appropriate personal protective equipment (PPE) is provided and required.
• May be required to work overtime or adjusted schedules to meet production demands.

Employment Verification Matrix participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S. EOE, including disability/vets

Compensation Pay: $25 - $35 per hour (depending on experience)

Hours Expected hours: 40 – 50 per week (Mon-Fri), depending on workload. This position is in-person.

Benefits 401(k)

401(k) matching

Dental insurance

Health insurance

Health savings account

Life insurance

Paid time off

Vision insurance