A professional who tends equipment, such as centrifuge and rotary drier, that removes moisture and recovers plastic resin from slurry. Respnsibilities include:

• Observes gauges, turns valves, and starts pumps to regulate flow of slurry from storage tank to centrifuge.
• Starts centrifuge to separate resin from slurry and observes flow of partially dried resins into rotary drier.
• Observes gauges and turns valves to regulate flow of hot air and maintain specified temperature in drier.
• May tend pneumatic conveyor that carries dried resin into storage silos.
• May measure level of stored materials in silo, using calibrated plumbline.