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Plastic Injection Molding Machine Operator Jobs in Milwaukee, WI

Ascendant Staffing Solutions

Set-Up Technician

Sussex, WI · On-site

$25 - $35/hr

... and automatic injection molding machines to maintain the flow and quality of products being ... Mounts, aligns, and connects plastic molding dies on press platens. Must ensure that the machine ...

Integrity Trade Services

Machine Operator

Sturtevant, WI

$16.50 - $19.50/hr

Efficient operation of machines and other associated equipment to successfully produce plastic ... Previous blow molding, Injection or Extrusion experience or related training (HDPE, PET) Industry ...

Integrity Trade Services

Machine Operator

Sturtevant, WI · On-site

$16.50 - $19.50/hr

Efficient operation of machines and other associated equipment to successfully produce plastic ... Previous blow molding, Injection or Extrusion experience or related training (HDPE, PET) Industry ...

MGS Mfg. Group, Inc

Process Engineer

Richfield, WI

Devises and recommends new or modified components of plastic injection molding machinery. * Conducts tests such as process window studies and design of experiments of plastic injection molding ...

MGS Mfg. Group, Inc

Process Engineer

Richfield, WI · On-site

Devises and recommends new or modified components of plastic injection molding machinery. * Conducts tests such as process window studies and design of experiments of plastic injection molding ...

Milwaukee Tool

Senior Process Engineer

Mukwonago, WI · On-site

$102K - $132K/yr

... for plastic injection molding - leading process development, optimization, and long-term ... Strong understanding of mold design, tooling principles, material data, molding machines ...

Milwaukee Tool

Senior Process Engineer

Mukwonago, WI · On-site

$102K - $132K/yr

... for plastic injection molding - leading process development, optimization, and long-term ... Strong understanding of mold design, tooling principles, material data, molding machines ...

htna

Tool Mold Maker

Milwaukee, WI

What You Bring (Qualifications): * 3+ years of plastic injection molding building experience or successful completion of an apprenticeship program. * Journeyman Tool & Die Maker certification/degree ...

Aegis Worldwide

Blow Mold Operator

Kenosha, WI

$20 - $21/hr

... of machine operating experience in a manufacturing environment * Experience with plastics manufacturing strongly preferred * Blow molding * Injection molding * Thermoforming * Plastic extrusion

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Plastic Injection Molding Machine Operator information

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How much do plastic injection molding machine operator jobs pay per hour?

As of Jul 4, 2026, the average hourly pay for plastic injection molding machine operator in Milwaukee, WI is $17.92, according to ZipRecruiter salary data. Most workers in this role earn between $16.11 and $19.18 per hour, depending on experience, location, and employer.

What is a Plastic Injection Molding Machine Operator job?

A Plastic Injection Molding Machine Operator is responsible for setting up, operating, and monitoring injection molding machines used to produce plastic parts. They ensure machines run efficiently, troubleshoot issues, perform quality checks, and maintain a clean work environment. Operators may also adjust machine settings, replace molds, and inspect finished products for defects. Their role is essential in manufacturing industries that produce plastic components for automotive, medical, and consumer goods.

What does a typical shift look like for a Plastic Injection Molding Machine Operator?

As a Plastic Injection Molding Machine Operator, your typical shift will involve setting up and monitoring injection molding machines, inspecting finished products for quality, and performing minor equipment maintenance as needed. You will often work on your feet for extended periods in a manufacturing environment and may rotate between day, evening, or overnight shifts depending on the employer. Teamwork is important, as you'll frequently collaborate with supervisors, quality control personnel, and other machine operators to meet production goals. Staying vigilant and responsive to machine alarms or quality issues is a key part of the daily routine.

What are the key skills and qualifications needed to thrive in the Plastic Injection Molding Machine Operator position, and why are they important?

To thrive as a Plastic Injection Molding Machine Operator, you need a good understanding of machine operation, mechanical aptitude, attention to detail, and a high school diploma or equivalent. Familiarity with industry-standard molding machines, quality inspection tools, and safety protocols, as well as certificates in manufacturing or machine operation, are often advantageous. Strong problem-solving skills, teamwork, and effective communication help individuals excel in this role. These abilities ensure efficient production runs, high-quality products, and a safe, collaborative work environment.

What are popular job titles related to Plastic Injection Molding Machine Operator jobs in Milwaukee, WI? For Plastic Injection Molding Machine Operator jobs in Milwaukee, WI, the most frequently searched job titles are:
What job categories do people searching Plastic Injection Molding Machine Operator jobs in Milwaukee, WI look for? The top searched job categories for Plastic Injection Molding Machine Operator jobs in Milwaukee, WI are:
Plastic Injection Molding Machine Operator jobs near you
Infographic showing various Plastic Injection Molding Machine Operator job openings in Milwaukee, WI as of June 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $37,268 per year, or $17.9 per hour.

Set-Up Technician

Ascendant Staffing Solutions

Sussex, WI • On-site

$25 - $35/hr

Full-time

Posted 3 days ago

Job description

Summary of Position

The Set-Up Technician position is responsible for removing molds from completed jobs and setting up the next scheduled jobs. In addition, the Set-Up Tech adjusts and troubleshoots the operations of semi-automatic and automatic injection molding machines to maintain the flow and quality of products being produced.

Essential Duties, Responsibilities, & Authority

  • Sets up molds. Installs knockout pins in the mold (all must be the SAME LENGTH). Mounts, aligns, and connects plastic molding dies on press platens. Must ensure that the machine’s safety features (e.g., drop bar, safety gates) are properly set. All Safety guards must be in place. Connects water and air lines to mold where necessary and adjusts controls to regulate the mold temperature.
  • Sets machine controls to regulate clamping pressure and speeds. Sets control for injection speeds and pressures. Sets all machines’ timers (e.g., curing time, boost time, hold time and open time) to obtain the proper cycles. Changes machine screw when necessary to obtain proper color. Record all troubleshooting adjustments on the Supervisors Checklist.
  • Cleans the entire machine and washes the floor around the machine. All work areas must be kept clean and safe.
  • Cycles-in machine. Examines the sample parts for defects, such as flash, sinks, shorts, splay, cracks and closed holes, proper inserts, and codes, and adjusts machine set up to eliminate defects.
  • Takes first good shots to Cell Lead for approval.
  • Arranges work area and assists in the set-up of auxiliary equipment as required.
  • Instructs operators on operating procedures and safety hazards as they pertain to each job after it is set up.
  • Trouble shoots operating difficulties by referring to the Sussex IM Trouble Shooting Guidelines. Adjust equipment and machine cycles as necessary to correct molding problems such as shorts, flash, etc.
  • Twice during the shift, verifies that we are free of nozzle leaks, Process windows are completed, and parameters are within the stated parameters and Cycle time is matched to the BOM.
  • At completion of run, responsible for removing mold from press. Sprays mold with rust preventative, disconnects water lines and blows water out of mold. No mold can be stored with water in water lines.
  • Responsible for storing mold in designated storage space. Must tag mold with any needed mold repair.
  • Follows Sussex IM’s environmental policies to protect and minimize our impact on the environment.
  • Maintains a safe 5S working environment to minimize the possibility of an injury. Acts in a safe manner always and ensures that those around them do not put themselves or others at risk. Reports any unsafe conditions to a manager.
  • Performs other related duties and assignments as assigned or required.

Required Education, Credentials, & Certifications

  • High school diploma or equivalent preferred.

Job Specification

  • Minimum of 3 years’ set-up experience in plastic injection molding

Knowledge, Skills & Abilities

  • Basic computer skills including IQMS systems.
  • Uses good interpersonal communication techniques to work with subordinates and/or coworkers. Is courteous and helpful when interacting with fellow employees. Helps to create a positive work environment.
  • Must have good documentation skills.
  • Strong material knowledge
  • Demonstrated machine knowledge.
  • Strong processing knowledge
  • Advanced set-up knowledge
  • Critical thinking skills
  • Ability to gather data and think creatively.
  • Good attendance
  • Ability to lift to 50 lbs. to shoulder height.

You should be proficient in:

  • Plastic Injection Molding
  • Set Up
  • Set-Up
  • Set-Up Technician
  • Set up technician
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