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MIXING & BANBURY MILLMAN -GRISWOLD PRODUCTS,  MOOSUP, CT  Join Griswold Products LLC in Moosup, CT as a key player in high-quality rubber manufacturing. Earn $25/hour in a full-time role operating rubber mixing mills and Banbury systems. Produce precision rubber compounds by controlling mix cycles, materials, and quality standards. Work hands-on with industrial equipment in a fast-paced, safety-focused environment. Build a stable career with training, benefits, and opportunities for advancement.

• Operate, monitor, and maintain rubber mixing mill equipment and Banbury mixing systems according to established safety and quality standards.
• Weigh, measure, and load raw materials such as rubber, chemicals, and additives into mills and Banbury mixers following exact formulas and batch sheets.
• Mix rubber compounds to specified hardness, consistency, and quality requirements using both open mills and Banbury mixing cycles.
• Set up, operate, and adjust Banbury mixer controls, including ram pressure, rotor speed, mix timing, and discharge procedures.
• Perform visual, physical, and temperature-based inspections of rubber batches to ensure uniformity, dispersion, and correct properties.
• Safely sheet out, cool, and process Banbury-mixed batches through mills when required.
• Record detailed production, batch, temperature, and materials data accurately for both mill and Banbury operations.
• Set up mills, adjust roll speeds, maintain proper temperatures, and ensure Banbury mixers are operating within required tolerances.
• Perform routine cleaning, lubrication, and minor maintenance on mills and Banbury equipment; promptly report mechanical or safety concerns.
• Safely handle raw materials and chemicals, following all hazard communication and PPE guidelines.
• Maintain a clean and organized work area and strictly follow all safety procedures, including lockout/tagout.
• Assist other production departments when needed to meet deadlines and production goals.

• Physical Requirements

  • Ability to stand for long periods of time during the shift.
  • Ability to lift and carry up to 75 lbs repeatedly.
  • Ability to work in a warm environment near heated mills, Banbury mixers, and heavy machinery.
  • Ability to bend, twist, reach, and perform repetitive manual tasks safely.
  • Comfortable working around rubber odors, dust, and industrial noise.

  Qualifications & Skills

  • High school diploma or equivalent (preferred).
  • Prior experience in rubber manufacturing, Banbury mixing, open milling, or machine operation is highly desirable.
  • Strong attention to detail and ability to follow precise batch instructions and safety procedures.
  • Mechanical aptitude with the ability to troubleshoot minor issues with mills or Banbury equipment.
  • Basic math and measurement skills required.
  • Ability to work independently with minimal supervision once trained.
  • Good communication skills and a strong team-oriented mindset.
  • Reliable attendance and willingness to work overtime when required.

  Work Environment

  • Industrial rubber production facility with heavy machinery, heated mixing equipment, and Banbury mixing systems.
  • PPE required (safety glasses, gloves, hearing protection, steel-toe boots, etc.). 
  • Fast-paced and safety-sensitive environment.

In the Spring of 2023, Griswold Products was created when Mechanical Rubber acquired the GriswoldTM engineered rubber product line, adding a new chapter to the story of a well-respected, leading manufacturer in the rubber industry. The company remains in its historic location in Moosup, Connecticut.

Griswold LLC was originally established in 1949 and built a strong reputation as a solutions-based manufacturer, collaborating with customers on the most intricate design requirements and finding creative approaches to produce exactly what the customer needs. Industries served include aerospace, automotive, defense, fitness, footwear, industrial and recreation, providing solutions for vibration, shock absorption, sealing, non-skid and more. Materials are available in multiple thicknesses and widths, and we offer the ability to add textile and film substrates as required by specific applications.

At Griswold Products, our motto is "Advancing Technology to Meet Your Growing Needs" and now more than ever we are committed to find innovative solutions for to meet your design requirements.

Griswold Products - Griswold Products