Separating, Filtering, Clarifying, Precipitating, and Still Machine Setters, Operators, and Tenders

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About the Job

Set up, operate, or tend continuous flow or vat-type equipment; filter presses; shaker screens; centrifuges; condenser tubes; precipitating, fermenting, or evaporating tanks; scrubbing towers; or batch stills. These machines extract, sort, or separate liquids, gases, or solids from other materials to recover a refined product. Includes dairy processing equipment operators.

It is also Called

  • Zinc-Chloride Operator
  • Yeast Fermentation Attendant
  • Yeast Distiller
  • Wringer Operator
  • Winterizer
  • Winery Worker
  • Winemaker
  • Wine Master
  • Wine Cellar Worker
  • Whey Department Operator
show all

What They Do

  • Pack bottles into cartons or crates, using machines.
  • Remove full containers from discharge outlets and replace them with empty containers.
  • Assemble fittings, valves, bowls, plates, disks, impeller shafts, or other parts to prepare equipment for operation.
  • Connect pipes between vats and processing equipment.
  • Install, maintain, or repair hoses, pumps, filters, or screens to maintain processing equipment, using hand tools.
  • Test samples to determine viscosity, acidity, specific gravity, or degree of concentration, using test equipment such as viscometers, pH meters, or hydrometers.
  • Measure or weigh materials to be refined, mixed, transferred, stored, or otherwise processed.
  • Clean or sterilize tanks, screens, inflow pipes, production areas, or equipment, using hoses, brushes, scrapers, or chemical solutions.
  • Remove clogs, defects, or impurities from machines, tanks, conveyors, screens, or other processing equipment.
  • Maintain logs of instrument readings, test results, or shift production for entry in computer databases.


People who work in this occupation generally have the interest code: RCI.

This means people who work in this occupation generally have Realistic interests, but also prefer Conventional and Investigative environments.

Work Values

People who work in this occupation generally prize Support, but also value Working Conditions and Independence in their jobs.

Things They Need to Know

  • Production and Processing - Knowledge of raw materials, production processes, quality control, costs, and other techniques for maximizing the effective manufacture and distribution of goods.
  • Chemistry - Knowledge of the chemical composition, structure, and properties of substances and of the chemical processes and transformations that they undergo. This includes uses of chemicals and their interactions, danger signs, production techniques, and disposal methods.
  • Mechanical - Knowledge of machines and tools, including their designs, uses, repair, and maintenance.
  • Mathematics - Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications.
  • Public Safety and Security - Knowledge of relevant equipment, policies, procedures, and strategies to promote effective local, state, or national security operations for the protection of people, data, property, and institutions.

Things They Need to Be Able to Do

  • Operation Monitoring - Watching gauges, dials, or other indicators to make sure a machine is working properly.
  • Operation and Control - Controlling operations of equipment or systems.
  • Monitoring - Monitoring/Assessing performance of yourself, other individuals, or organizations to make improvements or take corrective action.
  • Complex Problem Solving - Identifying complex problems and reviewing related information to develop and evaluate options and implement solutions.
  • Writing - Communicating effectively in writing as appropriate for the needs of the audience.
  • Speaking - Talking to others to convey information effectively.
  • Critical Thinking - Using logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions or approaches to problems.

Education Required

These occupations usually require a high school diploma.

LMI Region


In 2014, the average annual wage in New Jersey was $41,750 with most people making between $24,400 and $64,450


avg. annual growth

During 2012, this occupation employed approximately 940 people in New Jersey. It is projected that there will be 880 employed in 2022.

This occupation will have about 0 openings due to growth and about 30 replacement openings for approximately 30 total annual openings.