Cooling and Freezing Equipment Operators and Tenders
SOC: 51-9193.00


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.

National Salary Information:

Hourly Statistics:

Annual Statistics:

Source: Bureau of Labor Statistics 2015 wage data.

Employment Projections:

Employment (2014):
8,800 employed

Projected (2024):
8,700 employed

Projected growth (2014-2024)

Source: Bureau of Labor Statistics 2015 2014-2024 employment projections external site. "Projected growth" represents the estimated change in total employment over the projections period (2014-2024). "Projected job openings" represent openings due to growth and replacement.

Alternate Titles:

  • Ammonia Refrigeration Worker
  • Barrel Filler
  • Batch Freezer
  • Batch Freezer Operator
  • Boiler Mechanic
  • Boiler Operator
  • Brewery Cellar Worker
  • Brewery Worker
  • Chiller Operator
  • Chiller Tender
  • Chilling Hood Operator
  • Compressor Operator
  • Compressor Room Operator
  • Cooler Operator
  • Cooler Tender
  • Cooling Machine Operator
  • Cooling Pan Tender
  • Crystalizer
  • Crystalizer Operator
  • Crystalizer Tender
  • Crystallizer Operator
  • Dispensing Lead
  • Dispensing Operator
  • Engine Room Operator
  • Engineer
  • Freezer
  • Freezer Laboratory Technician
  • Freezer Machine Operator
  • Freezer Operator
  • Freezer Person
  • Freezer Tunnel Operator
  • Freezing Machine Operator
  • Hog Cooler
  • Ice Cream Vault Worker
  • Ice Maker
  • Ice Plant Operator
  • Ice Puller
  • Icebox Man
  • Icebox Worker
  • Machine Operator
  • Meat Cooler
  • Mechanic
  • Mold Cooler
  • Novelty Maker
  • Paradichlorobenzene Tender
  • Production Operator
  • Refrigerating Machine Operator
  • Refrigeration Engine Operator
  • Refrigeration Lead
  • Refrigeration Mechanic
  • Refrigeration Operator
  • Refrigeration Person
  • Refrigeration Technician
  • Spreading Machine Operator
  • Votator Machine Operator

  • Job Zone Two: Some Preparation Needed


    Some previous work-related skill, knowledge, or experience is usually needed. For example, a teller would benefit from experience working directly with the public.


    These occupations usually require a high school diploma.

    Job Training:

    Employees in these occupations need anywhere from a few months to one year of working with experienced employees. A recognized apprenticeship program may be associated with these occupations.

    Required Skills:

  • Reading Comprehension
  • Active Listening
  • Writing
  • Speaking
  • Mathematics
  • Science
  • Critical Thinking
  • Active Learning
  • Learning Strategies
  • Monitoring
  • Social Perceptiveness
  • Coordination
  • Persuasion
  • Negotiation
  • Instructing
  • Service Orientation
  • Complex Problem Solving
  • Operations Analysis
  • Technology Design
  • Equipment Selection
  • Installation
  • Programming
  • Operation Monitoring
  • Operation and Control
  • Equipment Maintenance
  • Troubleshooting
  • Repairing
  • Quality Control Analysis
  • Judgment and Decision Making
  • Systems Analysis
  • Systems Evaluation
  • Time Management
  • Management of Financial Resources
  • Management of Material Resources
  • Management of Personnel Resources

  • Knowledge Used:

  • Administration and Management
  • Clerical
  • Economics and Accounting
  • Sales and Marketing
  • Customer and Personal Service
  • Personnel and Human Resources
  • Production and Processing
  • Food Production
  • Computers and Electronics
  • Engineering and Technology
  • Design
  • Building and Construction
  • Mechanical
  • Mathematics
  • Physics
  • Chemistry
  • Biology
  • Psychology
  • Medicine and Dentistry
  • Education and Training
  • English Language
  • Public Safety and Security
  • Law and Government
  • Telecommunications
  • Communications and Media
  • Transportation

  • Tasks:

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

  • Tools & Technology:

  • Air compressors
  • Air purifying respirators
  • Air-cooled condensers
  • Ammonia detectors
  • Ammonia pressure gauges
  • Auto-purgers
  • Back-pressure regulators
  • Batch freezers
  • Belt freezers
  • Blast tunnel freezers
  • Boiler generators
  • Compound gauges
  • Decontamination shower stations
  • Defrost relief valves
  • Depth gauges
  • Digital ammeters
  • Digital calipers
  • Digital flowmeters
  • Digital hydrometers
  • Digital manometers
  • Digital micrometers
  • Direct expansion evaporators
  • Electronic refrigerant leak detectors
  • Evaporative condensers
  • Eyewash stations
  • Falling film heat exchangers
  • Flash intercoolers
  • Flooded evaporators
  • Fluidized bed freezers
  • Freezing agitators
  • Hand expansion valves
  • Handheld refractometers
  • Hermetic pumps
  • High pressure receivers
  • Ice cube forming machines
  • Immersion freezers
  • Impervious boots
  • Intercoolers
  • Liquid level indicators
  • Liquid overfeed evaporators
  • Low pressure accumulators
  • Magnehelic pressure gauges
  • Ohm meters
  • Oil coolers
  • Oil level regulators
  • Oil pumps
  • Oil separators
  • Personal computers
  • pH testers
  • Plate freezers
  • Plate heat exchangers
  • Portable fire extinguishers
  • Positive displacement compressors
  • Pressure relief valves
  • Protective ear plugs
  • Protective glasses
  • Reciprocating compressors
  • Recirculators
  • Refrigerant compressors
  • Refrigerant pumps
  • Remote thermometers
  • Rotary screw compressors
  • Rotary vane compressors
  • Scissor lifts
  • Scraped surface heat exchangers
  • Secondary fluid pumps
  • Shell and tube heat exchangers
  • Spiral freezers
  • Surge drums
  • Telescopic booms
  • Thermal fluid systems
  • Thermosiphon oil coolers
  • Thermostatic expansion valves
  • Ultraviolet UV lamps
  • Volt meters
  • Water chilling systems
  • Water-cooled condensers
  • Gmail
  • Microsoft Excel
  • Microsoft PowerPoint
  • Microsoft Word

  • production

    industry stats

    SOC: 51-0000

    Total Employed: 9,073,290

    Average Annual Salary: $36,220