Tunnel Washers

When high throughput meets hygiene standards, Sani-Matic Tunnel Washers deliver. Designed to efficiently clean large volumes of repeat-use items such as pans, totes, and trays, these automated systems reduce labor costs, cut down on water and chemical use, and provide consistent, repeatable cleaning results—making them ideal for food, beverage, and high-care production environments.

Key Features

  • Modular Design: Available in 2-, 3-, or 4-section configurations to suit your cleaning requirements and floor plan.
  • 360° Adjustable Spray Nozzles: High-impact spray manifolds ensure complete internal and external coverage.
  • Automatic Controls: Programmable PLC controls manage water levels, temperature, and conveyor speed for reliable, hands-free operation.
  • Stainless Steel Construction: Durable 304 stainless steel build with rollaway covers for easy access to internal components.
  • Efficient Conveyance: Variable-speed, gear-driven conveyor with torque limiter for safe and consistent movement.
  • Dual-Stage Straining System: Captures heavy and fine soils through sump and pump-side filtration.

Cleaning Process Overview

Each system is engineered for efficiency through multiple cleaning zones:

  • Pre-Rinse (PR): Loosens and removes heavy residues from soiled containers.
  • Detergent Wash (DW): High-impact cleaning spray applies detergent to remove remaining soils.
  • Recirculated Rinse (RR): Clears away most detergent residues and reuses water for upstream rinsing.
  • Fresh Water Rinse (FR): Final rinse with clean water to remove any remaining detergent film.
  • Optional Blow-Off (BL): Removes moisture at the exit for faster drying and downstream handling.

tunnel washers cleaning process overview

Standard Features

  • 304 stainless steel construction
  • Rollaway covers for service access
  • PLC controls with indicator lights
  • Steam injection heating
  • Custom guide rails and spray manifolds
  • Two-stage straining system
  • Pre-piped centrifugal supply pumps
  • Variable-speed conveyor with torque limiter
  • Automatic water level and temperature control with alarms

Available Custom Options

  • Automatic detergent injection and concentration control
  • Automatic sanitizer dosing
  • Final rinse conservation valve
  • Exhaust fan
  • Indirect steam heating coils
  • Conveyorized strainer with scraper
  • Single or dual-lane configuration
  • Automated material handling and exit blow-off systems
  • Plant control integration via custom PLC interface

Why Choose a Tunnel Washer?

  • Maximize Throughput: Clean large volumes of containers quickly and efficiently.
  • Reduce Labor Costs: Automated systems eliminate manual scrubbing and repetitive tasks.
  • Save Water and Chemicals: Recirculated rinse zones and optional conservation valves minimize waste.
  • Ensure Repeatable Results: Programmable controls deliver consistent, validated cleaning cycles.
  • Improve Hygiene and Safety: 360° spray coverage and sanitary construction reduce contamination risk.
  • Customizable to Your Facility: Modular design, optional blow-off systems, and automation features tailor the system to your process.

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