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Cooling and Freezing Equipment Operators and Tenders - 51-9193.00

O*NET-SOC Description

Operate or tend equipment such as cooling and freezing units, refrigerators, batch freezers, and freezing tunnels, to cool or freeze products, food, blood plasma, and chemicals.

Sample of Reported Job Titles

  • Certified Refrigeration Operator
  • Compressor Operator
  • Engine Room Operator
  • Freezer Operator
  • Freezer Person
  • Ice Cream Maker
  • Machine Operator
  • Refrigeration Operator
  • Refrigeration Technician

SOC Occupation Groups

51-0000 Production Occupations
51-9000 Other Production Occupations
51-9190 Miscellaneous Production Workers
51-9193.00 Cooling and Freezing Equipment Operators and Tenders

Related Occupations


  • Activate mechanical rakes to regulate flow of ice from storage bins to vats.
  • Adjust machine or freezer speed and air intake to obtain desired consistency and amount of product.
  • Assemble equipment, and attach pipes, fittings, or valves, using hand tools.
  • Correct machinery malfunctions by performing actions such as removing jams, and inform supervisors of malfunctions as necessary.
  • Insert forming fixtures, and start machines that cut frozen products into measured portions or specified shapes.
  • Inspect and flush lines with solutions or steam, and spray equipment with sterilizing solutions.
  • Load and position wrapping paper, sticks, bags, or cartons into dispensing machines.
  • Measure or weigh specified amounts of ingredients or materials, and load them into tanks, vats, hoppers, or other equipment.
  • Monitor pressure gauges, ammeters, flowmeters, thermometers, or products, and adjust controls to maintain specified conditions, such as feed rate, product consistency, temperature, air pressure, and machine speed.
  • Place or position containers into equipment, and remove containers after completion of cooling or freezing processes.
  • Position molds on conveyors, and measure and adjust level of fill, using depth gauges.
  • Read dials and gauges on panel control boards to ascertain temperatures, alkalinities, and densities of mixtures, and turn valves to obtain specified mixtures.
  • Record temperatures, amounts of materials processed, or test results on report forms.
  • Sample and test product characteristics such as specific gravity, acidity, and sugar content, using hydrometers, pH meters, or refractometers.
  • Scrape, dislodge, or break excess frost, ice, or frozen product from equipment to prevent accumulation, using hands and hand tools.
  • Start agitators to blend contents, or start beater, scraper, and expeller blades to mix contents with air and prevent sticking.
  • Start machinery, such as pumps, feeders, or conveyors, and turn valves to heat, admit, or transfer products, refrigerants, or mixes.
  • Stir material with spoons or paddles to mix ingredients or allow even cooling and prevent coagulation.
  • Weigh packages and adjust freezer air valves or switches on filler heads to obtain specified amounts of product in each container.

Detailed Work Activities

  • Adjust equipment controls to regulate coolant flow.
  • Adjust equipment controls to regulate flow of production materials or products.
  • Adjust equipment to ensure optimal performance.
  • Adjust position of molds during processing.
  • Adjust temperature controls of ovens or other heating equipment.
  • Assemble electromechanical or hydraulic systems.
  • Clean production equipment.
  • Clear equipment jams.
  • Collect samples of materials or products for testing.
  • Install mechanical components in production equipment.
  • Load materials into production equipment.
  • Measure ingredients or substances to be used in production processes.
  • Mix substances to create chemical solutions.
  • Monitor equipment operation to ensure proper functioning.
  • Monitor instruments to ensure proper production conditions.
  • Mount attachments or tools onto production equipment.
  • Notify others of equipment repair or maintenance needs.
  • Operate mixing equipment.
  • Operate pumping systems or equipment.
  • Position containers to receive materials or workpieces.
  • Record operational or production data.
  • Sterilize food cooking or processing equipment.
  • Test chemical or physical characteristics of materials or products.
  • Weigh finished products.

Military Crosswalk Titles

  • Advanced Utilitiesman (Navy - Enlisted)
  • Automotive Maintenance Warrant Officer (Army - Warrant Officer only)
  • Aviation Support Equipment Technician (Navy - Enlisted)
  • Cryogenics Equipment Operator (Marine Corps - Enlisted)
  • Cryogenics Technician, Overseas Shore Based Equipment Operator/Maintainer (Navy - Enlisted)
  • Engineer Equipment Maintenance Warrant Officer (Army - Warrant Officer only)
  • Engineman (Navy - Enlisted)
  • Fireman (Navy - Enlisted)
  • Gas Turbine System Technician (Electrical) (Navy - Enlisted)
  • Heating, Ventilation, Air Conditioning, and Refrigeration (Air Force - Enlisted)
  • Heating, Ventilation, Air Conditioning, and Refrigeration Apprentice (Air Force - Enlisted)
  • Heating, Ventilation, Air Conditioning, and Refrigeration Craftsman (Air Force - Enlisted)
  • Heating, Ventilation, Air Conditioning, and Refrigeration Helper (Air Force - Enlisted)
  • Heating, Ventilation, Air Conditioning, and Refrigeration Journeyman (Air Force - Enlisted)
  • Machinery Technician (Coast Guard - Enlisted)
  • Machinist's Mate (Navy - Enlisted)
  • Marine Safety Specialist Engineer (Coast Guard - Warrant Officer only)
  • NAMTS Air Conditioning and Refrigeration Technician (Navy - Enlisted)
  • Naval Engineering Specialty (Coast Guard - Warrant Officer only)
  • Refrigeration and Air Conditioning Systems Technician (Navy - Enlisted)
  • Refrigeration and Air Conditioning Technician (Marine Corps - Enlisted)
  • Shore-Based Refrigeration and Air Conditioning Technician (Navy - Enlisted)
  • Support Equipment Air Conditioning and Mobile Maintenance Facility (MMF) Technician (Navy - Enlisted)
  • Support Equipment Cryogenic Mechanic (Navy - Enlisted)
  • Support Equipment Electrician/Refrigeration and Engine/Gas Turbine Technician (Marine Corps - Enlisted)
  • Utilities Equipment Repairer (Army - Enlisted)
  • Utilitiesman (Navy - Enlisted)
  • Wheeled Vehicle Mechanic (Army - Enlisted)

Apprenticeship Crosswalk Titles

  • Freezer Operator (Dairy)

DOT Crosswalk Titles

  • Barrel Filler
  • Batch Freezer
  • Brewery Cellar Worker
  • Chiller Operator
  • Chiller Tender
  • Chilling-Hood Operator
  • Cooler Tender
  • Cooling-Machine Operator
  • Cooling-Pan Tender
  • Crystallizer Operator
  • Freezer Operator
  • Freezer Tunnel Operator
  • Freezing-Machine Operator
  • Ice Maker
  • Novelty Maker I
  • Novelty Maker II
  • Paradichlorobenzene Tender
  • Spreading-Machine Operator
  • Votator-Machine Operator