Rotocast Machine Operator - All Shifts

Gemini, Inc.; Cannon Falls (MN); On-site; USD 30,000 - 45,000; Full time

Benefits offered by this job

Health insurance

Tuition reimbursement

Weekly pay

Paid time off

Disability & life insurance

Retirement match

Company resort use

Job summary

Gemstar Manufacturing, a division of Gemini, Inc., is seeking a Rotocast Machine Operator for our Cannon Falls, MN facility. You will set up and run rotocasting machines, prepare materials, load molds, and ensure quality through inspections.

This full-time, on-site role covers 1st–3rd shifts with a 10% differential for 2nd/3rd shift. We value safety, teamwork, and accurate record-keeping in a fast-paced environment.

Qualifications

• High School Diploma or GED required.
• 1–2 years of manufacturing, machine operation, or related experience preferred.
• Ability to read and follow work instructions, drawings, and basic production documentation.

Responsibilities

• Set up and operate rotocasting machines, molds, ovens, cooling systems, and related production equipment.
• Prepare and measure resins, powders, additives per formulas and work instructions.
• Load and secure molds on rotocasting equipment and verify proper setup before production.
• Monitor and adjust cycle times, temperatures, and rotation speeds for quality parts.
• Perform visual and dimensional inspections using calipers, gauges, and measuring tools.
• Maintain production, material usage, and quality records.

Skills

Mechanical aptitude

Attention to detail

Read schematics

Computer literacy

Multitasking

Measurement skills

Team collaboration

Education

High School Diploma or GED

Tools

Rotocasting equipment

Mold loading equipment

Calipers & gauges

Job description

Company Overview

Gemstar Manufacturing® has been a leading manufacturer of custom plastic parts and protective hard cases for over 60 years and operates under two business unit brands. Gemstar Custom Part Solutions is a full-service manufacturer providing solutions to unique custom plastic part needs. Gemstar Protective Hard Cases offers four rugged case lines: Stronghold®, RoboRack®, Sentinel®, and VersaPro®. For more information, visit www.gemstarmfg.com.

Company Overview

Gemstar Manufacturing® has been a leading manufacturer of custom plastic parts and protective hard cases for over 60 years and operates under two business unit brands. Gemstar Custom Part Solutions is a full-service manufacturer providing solutions to unique custom plastic part needs. Gemstar Protective Hard Cases offers four rugged case lines: Stronghold®, RoboRack®, Sentinel®, and VersaPro®. For more information, visit www.gemstarmfg.com.

Gemstar Manufacturing is a division of Gemini, Inc., a second-generation, family-owned wholesale manufacturer of dimensional signage.

Gemstar is looking for experienced Machine Operators for 1st, 2nd, and 3rd shift to join the team at our location in Cannon Falls, MN! The position is responsible for setting up and operating rotocasting equipment to produce high-quality plastic products and components according to customer specifications, engineering drawings, work instructions, and quality standards. Under general supervision, you will perform material preparation, mold loading and unloading, machine adjustments, part finishing, inspections, and basic troubleshooting while maintaining a safe and efficient production environment. Come be a part of a positive, people-first culture that is focused on leveraging each team members’ strengths to help bring our customer’s unique products to life.

Wage Range: USD $21.97 - $32.32 per hour (range is inclusive of a 10% shift differential for 2nd and 3rd shift)

Location: Cannon Falls, MN

Type: Full Time – On-site

Schedule/Available Shifts:

• 1st Shift: 6am-2:30pm
• 2nd Shift: 2pm-10:30pm
• 3rd Shift: 10pm-6:30am
• Overtime is scheduled as needed.

A day in the life of a Rotocast Machine Operator at Gemstar includes

• Set up and operate rotocasting machines, molds, ovens, cooling systems, and related production equipment.
• Prepare and accurately measure resins, powders, additives, and other materials according to established formulas and work instructions.
• Input proper operational cycles into computer per work order instructions.
• Load and secure molds onto rotocasting equipment and verify proper setup before starting production.
• Monitor and adjust machine cycle times, temperatures, rotation speeds, and other process parameters to maintain consistent part quality.
• Safely remove, demold, trim, and finish molded components.
• Perform visual and dimensional inspections using calipers, gauges, and other measuring equipment.
• Identify defects such as warping, voids, thin walls, incomplete coverage, surface imperfections, and dimensional variation.
• Make appropriate process adjustments and communicate recurring quality issues to supervision or engineering.
• Perform basic machine troubleshooting and routine preventative maintenance.
• Maintain accurate production, material usage, and quality records.
• Follow established work instructions, safety procedures, quality standards, and housekeeping requirements.
• Maintain a clean, organized, and safe work area.
• Supports the onboarding of new team members through training and knowledge sharing.
• Performs other duties as assigned for the benefit of the group or organization.

Skills And Abilities

• High degree of mechanical aptitude and ability to operate machine controls, process parameters, and production procedures.
• Good attention to detail and commitment to producing quality parts.
• Ability to read and follow work instructions, drawings, and basic production documentation.
• Basic ability to operate computers, computer equipment and machine control panels
• Flexible attitude to work in multiple areas depending on the company’s need and the ability to multitask
• Ability to perform basic measurements and recognize when a part does not meet specifications.
• Maintains an atmosphere of respect and cooperation with coworkers, supervisors, production personnel, and other departments.

Education And Experience

• High School Diploma or GED
• 1 – 2 years of manufacturing, machine operation, or related experience.

Preferred Qualifications

• Experience working with resins, plastics, molds, ovens, or other thermal processing equipment is a plus.

Physical Demands Summary

• Ability to work safely in a hot, noisy, and physically demanding manufacturing environment.
• While performing the duties of this job, the employee is regularly required to walk, stand, talk, and hear. use hands to handle, feel, finger, or operate objects or tools. reach with hands and arms, and perform repetitive movements of hands or wrists.
• Vision abilities include close vision, distance vision, depth perception, color distinction, ability to adjust focus, and peripheral vision
• Employee may regularly be required to lift up to 40 pounds.
• Ability to work mandatory overtime, including extended hours, weekends, holidays, and/or additional shifts as business needs require.

This job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee. Other duties, responsibilities and activities may change or be assigned at any time with or without notice.

The actual title and individual compensation packages are dependent upon various factors unique to each candidate including skillset, training, transferable skills, work experience, qualifications, business needs, market demands, and other job-related reasons. The base pay range is subject to change and may be modified in the future. This role is eligible for other benefits.

How We Show We Care

• $0 Health Insurance Premium for Employee-Only Coverage (Plus low-cost premiums for other coverage levels!)
• 4% Retirement Match with Profit Sharing
• Generous Paid Time Off (Vacation, Holiday, Parental, Volunteer, and Sick)
• Dental, Vision, Disability and Life Insurance
• Get Paid Weekly
• Use of Company Owned Resort in Hayward, WI
• Tuition Reimbursement Program

About Us

As a leader in the signage manufacturing industry, Gemini, Inc. has been providing stability to our employees since 1963. We know what it means to be human, and we strive to make sure our employees feel valued. Due to our incredible family of employees, we have grown substantially and are looking to grow our team further with like-minded individuals that share in our company values: Customer Commitment, Teamwork, Respect, Diversity, Stability, Stewardship. At the heart of our work is a simple but powerful vision: Successful Partners. Engaged People. Thriving Communities. This vision guides how we show up every day for our customers, for one another, and for the communities we call home.

• We are an Equal Opportunity employer committed to a diverse workforce. We do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, marital status, veteran status, or disability.
• Gemini will provide reasonable accommodations for qualified individuals with disabilities. For additional assistance email; [e-mail] or call(507) 263-3957and ask for the Human Resources Representative assigned to the location of interest.
• Following receipt of a conditional offer of employment, candidates will be required to complete additional job-related screening processes as permitted or required by applicable law.