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Injection Molding Machine Jobs in California (NOW HIRING)

KUI CO., Inc

Be Seen First

Injection Molding Machine Operator

San Clemente, CA · On-site

$21 - $30/hr

*Operate various types and sizes of injection molding machines *Inspect and trim molded parts according to work instructions and advise production supervisors of problems found during molding. Comply ...

ALOIS LLC

Injection Molding Machine Operator

Garden Grove, CA · On-site

$16.25 - $21.75/hr

Produces quality parts by running plastic injection molding machines, following work orders and blueprints. Monitors process temperatures and injection pressures to detect non-conformances to drawing ...

WET Design

$20 - $24/hr

... Injection Molding Machines. Operate 77, 275 and 750 ton machines to produce high quality parts for our proprietary devices. Responsibilities: * Responsible for operating, loading and unloading ...

WET Design

Injection Mold Operator

CA · On-site

$20 - $24/hr

... Injection Molding Machines. Operate 77, 275 and 750 ton machines to produce high quality parts for our proprietary devices. Responsibilities: * Responsible for operating, loading and unloading ...

Work Comp 360

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Injection Molding Operator

Orange, CA · On-site

$18 - $18.50/hr

Maintain proper machine cycle times and production standards. * Remove finished parts from molds manually or with robotic assistance. * Inspect finished parts for visual defects and quality issues.

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Injection Molding Machine information

What is an injection molding machine?

An injection molding machine is a type of manufacturing equipment used to produce parts by injecting molten material, usually plastic, into a mold. The process involves melting the material, injecting it into a shaped cavity, and then cooling it to form a solid part. Injection molding machines are widely used for making plastic products in industries such as automotive, medical devices, packaging, and consumer goods. These machines help achieve high production rates, repeatability, and precision in manufacturing complex shapes.

What are the key skills and qualifications needed to thrive as an injection molding machine operator?

To thrive as an Injection Molding Machine Operator, you need a solid understanding of machine operation, troubleshooting, and quality control, often supported by a high school diploma or technical certification. Familiarity with manufacturing software, measurement tools like calipers, and safety protocols is typically required. Attention to detail, problem-solving abilities, and teamwork are critical soft skills that set top operators apart. These skills ensure efficient production, minimize defects, and maintain a safe, high-quality manufacturing environment.

What are some common challenges faced when operating an injection molding machine, and how can they be managed?

Operators of injection molding machines often encounter challenges such as material inconsistencies, equipment malfunctions, and maintaining precise production tolerances. To manage these issues, it's important to regularly inspect the machine, follow preventive maintenance schedules, and communicate closely with quality control teams. Staying up-to-date with troubleshooting techniques and participating in ongoing training can also help operators quickly resolve problems and minimize downtime.

What is the difference between Injection Molding Machine vs Injection Molding Technician?

AspectInjection Molding MachineInjection Molding Technician
Primary RoleEquipment used to produce plastic partsOperates and maintains injection molding machines
Required SkillsMechanical knowledge, machine operationMachine setup, troubleshooting, quality control
Work EnvironmentManufacturing plant, heavy machineryManufacturing plant, hands-on machine work
CertificationsMachine operation certifications often preferredTechnical training, safety certifications

While the injection molding machine is the equipment used in plastic manufacturing, the injection molding technician is the skilled worker who operates, maintains, and troubleshoots these machines. Both roles are essential in the manufacturing process, with the machine being the tool and the technician being the operator ensuring efficient production.

Is injection molding a hard job?

Injection molding machine operators typically need to understand machine operation, safety procedures, and quality control, which can require technical skills and attention to detail. The job may involve standing for long periods, working with heavy equipment, and adhering to strict safety standards, making it physically demanding and requiring focus. Proper training and sometimes certification are important for proficiency in this role.

What can you make with an injection molding machine?

An injection molding machine is used to produce a wide variety of plastic parts and products, including automotive components, packaging, consumer electronics housings, medical devices, and household items. The process allows for high-volume, precise manufacturing of complex shapes from thermoplastic and thermosetting materials. Skills in machine operation, mold design, and quality control are essential for producing consistent, high-quality products.
Injection Molding Machine jobs near you
Infographic showing various Injection Molding Machine job openings in California as of August 2026, with employment types broken down into 78% Full Time, 15% Part Time, 1% Temporary, 4% Contract, and 2% Nights. Highlights an 93% Physical, 1% Hybrid, and 6% Remote job distribution.

Injection Molding Machine Operator (Dummy)

Garden Grove, CA • On-site

ALOIS LLC
Recruiting and Staffing Services • 51 - 200 employees
Learn more about ALOIS LLCexternal

$16.25 - $21.75/hr

Contractor

Re-posted 25 days ago

Job description

Injection Molding Machine Operator
Location: Garden Grove, CA 92841

Qualifications:

  • Manufacturing experience preferred

  • Ability to read blueprints and work orders

  • Basic measuring and inspection skills

Responsibilities:

  • Operate plastic injection molding machines to produce quality parts

  • Read and follow blueprints, work orders, and customer specifications

  • Monitor machine temperatures and injection pressures

  • Inspect parts and verify machine settings using measuring tools

  • Use micrometers, Vernier calipers, and optical comparators

  • Perform basic preventive maintenance as needed

  • Ensure parts meet quality and drawing specifications