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Blow Mold Machine Operator Jobs in Colorado (NOW HIRING)

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Machine Operator [17001]

Fort Lupton, CO · On-site

$20 - $22/hr

During mold changes, this position is to assist the Machine Operator with such actions * During machine downtime, ensure your area is clean and the Machine Operator does not need your assistance ...

TriMas Corporation

Machine Operator - All Shifts

Denver, CO

$17.75 - $21.25/hr

The Machine Operator is responsible for visually inspectingand packaging products to ensure they ... Previous experience working in an ISO controlled environment preferred Previous injection molding ...

Amcor

Machine Operator II-ARP

Denver, CO · On-site

$17.50 - $20.75/hr

Operates and maintains associated machinery required to support the molding process to produce and ... Helps develop work instructions and levels training programs for next generation operators.

Amcor plc

Machine Operator II-ARP

Denver, CO · On-site

$17.50 - $20.75/hr

Operates and maintains associated machinery required to support the molding process to produce and ... Helps develop work instructions and levels training programs for next generation operators.

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Blow Mold Machine Operator information

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How much do blow mold machine operator jobs pay per hour?

As of Aug 25, 2026, the average hourly pay for blow mold machine operator in Colorado is $20.53, according to ZipRecruiter salary data. Most workers in this role earn between $18.46 and $22.74 per hour, depending on experience, location, and employer.

What is a blow mold machine operator?

Blow Mold Machine Operators are skilled workers who set up, operate, and maintain machines that shape plastic or glass containers using the blow molding process. They monitor machine performance, adjust settings, and ensure the quality of the final products by inspecting them for defects. These operators also perform routine maintenance, troubleshoot equipment issues, and keep detailed production records. Blow Mold Machine Operators play a vital role in industries such as packaging, automotive, and consumer goods manufacturing.

What does a blow mold machine operator do?

The responsibilities of a blow mold machine operator include setting up and operating blow molding equipment used to create hollow plastic products. In this career, you manage the production of one machine in most cases, adjust the controls, set the temperature, adjust the mandrel with the desired mold chamber, and allow the machine to create the product to the client’s specifications under a specific amount of heat and pressure. You use various hand tools, trim excess plastic material from products using knives or a bandsaw, and ensure product quality by inspecting and weighing finished pieces. Other duties include regrinding extra material and any parts that are not to spec, regrinding extra material for reuse, light assembly as needed, and packing boxes with finished pieces. Many employers also expect you to perform minor repairs on machinery.

What are the key skills and qualifications needed to thrive as a blow mold machine operator, and why are they important?

To thrive as a Blow Mold Machine Operator, you need mechanical aptitude, attention to detail, and a high school diploma or equivalent, with some employers preferring prior manufacturing experience. Familiarity with blow molding machines, basic hand tools, and quality control systems is typically required, along with knowledge of safety protocols. Strong problem-solving skills, teamwork, and effective communication help operators quickly address equipment issues and coordinate with colleagues. These skills ensure efficient production, minimize downtime, and maintain product quality and workplace safety.

What are some common challenges faced by blow mold machine operators and how can they be addressed?

Blow Mold Machine Operators often encounter challenges such as machine malfunctions, maintaining product quality, and minimizing production downtime. To address these, operators should stay vigilant during machine operation, perform regular quality checks, and follow preventive maintenance schedules closely. Collaborating with maintenance technicians and communicating issues promptly helps resolve problems efficiently and ensures smooth production flow. Continuous learning about new machine models and updated safety protocols also contributes to overcoming challenges in this role.

What is the difference between Blow Mold Machine Operator vs Plastic Molding Technician?

AspectBlow Mold Machine OperatorPlastic Molding Technician
CredentialsHigh school diploma, on-the-job trainingHigh school diploma, technical training often preferred
Work EnvironmentManufacturing plants, operating blow molding machinesManufacturing facilities, working with various molding equipment
Industry UsagePlastic bottle and container productionBroader plastic parts manufacturing

Both roles involve working with plastic molding equipment, but Blow Mold Machine Operators focus specifically on blow molding processes for bottles and containers, while Plastic Molding Technicians handle a wider range of plastic molding techniques. The skills and certifications overlap, making them comparable roles within the plastics manufacturing industry.

Is mold making a good career?

A blow mold machine operator works with manufacturing equipment to produce plastic molds, requiring attention to detail and safety protocols. The career offers steady employment in manufacturing settings, with opportunities for skill development and advancement through experience and certifications. Job stability depends on industry demand and company needs.
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Blow Mold Machine Operator jobs near you
Infographic showing various Blow Mold Machine Operator job openings in Colorado as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $42,694 per year, or $20.5 per hour.

Roto Mold Operator (2nd shift)

Fountain, CO • On-site

Sanders Industries Holdings
11 - 50 employees
Learn more about Sanders Industries Holdingsexternal

$21 - $22/hr

Full-time

Medical, Dental, Vision, Life, Retirement

Re-posted 3 days ago

Job description

RMB Products is seeking a Rotational Molding (“Roto Mold”) Operator 2nd shift who is responsible for setting up, operating, and maintaining rotational molding equipment to produce high-quality products that meet engineering specifications, company quality standards, and customer requirements. This role performs machine setup, mold preparation, production, finishing, inspection, and basic equipment maintenance in a fast-paced manufacturing environment.

Essential Duties and Responsibilities
  • Set up, operate, and monitor rotational molding equipment according to work orders, setup sheets, production schedules, and established procedures.
  • Prepare molds, materials, tooling, inserts, and equipment for production.
  • Program and adjust machine settings, including time, temperature, and rotation, to produce parts that meet required specifications.
  • Mount, remove, clean, inspect, and maintain molds, tooling, and related equipment.
  • Perform finishing operations including demolding, trimming, de-flashing, and other post-molding processes.
  • Perform visual and dimensional inspections of in-process and finished products using appropriate measuring tools.
  • Identify, document, segregate, and report nonconforming materials or products according to established quality procedures.
  • Complete production, quality, maintenance, scrap, and other required documentation accurately and on time.
  • Perform routine preventive maintenance, housekeeping, and equipment readiness activities.
  • Follow all safety procedures, quality standards, work instructions, and company policies.
  • Work collaboratively with team members to support production goals and continuous improvement efforts.
  • Work overtime, modified schedules, or additional hours as needed to meet business requirements.
  • Perform other duties as assigned.
Required Skills and Qualifications
  • Ability to read and interpret blueprints, work instructions, and customer specifications.
  • Strong mechanical aptitude and math skills.
  • Ability to operate or learn to operate rotational molding machines, forklifts, cranes, pneumatic tools, impact tools, and other manufacturing equipment.
  • Ability to set up and adjust manufacturing equipment.
  • Strong attention to detail with the ability to identify product or process issues.
  • Ability to manage multiple priorities and work effectively in a fast-paced manufacturing environment.
  • Good written and verbal communication skills.
  • Ability to work independently and as part of a team.
Education and Experience
  • High school diploma or equivalent preferred.
  • 1+ years of manufacturing or machine operation experience preferred.
  • Previous rotational molding or plastics manufacturing experience is a plus.
Physical Requirements
  • Ability to lift up to 50 pounds, with or without reasonable accommodation.
  • Ability to maneuver through manufacturing areas and perform tasks that require climbing, reaching, bending, and reaching above shoulder level.
  • Ability to safely operate manufacturing equipment and tools required for the position.


Benefits:
At RMB, we recognize how important your career and benefits are to you and your family. We offer a full suite of benefits, including medical, dental, vision, short and long-term disability coverage, accident insurance, critical illness insurance, basic and supplemental life insurance, employee assistance plan, retirement savings and matching, and other developmental opportunities. We are committed to supporting the way you live and work.

RMB is an Equal Opportunity Employer Veterans/Disabled - Affirmative Action Employer.

This position requires using information subject to the International Traffic in Arms Regulations (ITAR). All applicants must be U.S. persons within the meaning of ITAR. ITAR defines a U.S. person as a U.S. Citizen, U.S. Permanent Resident (i.e. 'Green Card Holder'), Political Asylee, or Refugee.


M-F 7am-3:30pm