Multi-Stage Washing and Sanitizing Tunnel for Fish Processing

Product Specifications

Technical details and manufacturing context for Multi-Stage Washing and Sanitizing Tunnel

Definition

The Multi-Stage Washing and Sanitizing Tunnel is a component used in food manufacturing, specifically within a modular fish processing and preservation line. It subjects fish products to a series of controlled washing and sanitizing stages to remove contaminants, slime, blood, and microorganisms, ensuring food safety and quality before further processing or packaging. The system is constructed from stainless steel (AISI 304/316) and is designed for continuous operation. Key parameters include a processing capacity of 500–2000 kg/h, conveyor speed of 0.5–5 m/min, and 3–6 washing stages. Water temperature ranges from 20–85 °C, with higher temperatures for sanitizing stages. Operating pressure is 1.0–1.6 MPa, and sanitizing concentration for chlorine-based sanitizers is 50–200 ppm. Drying temperature is 40–80 °C. Electrical power is 15–60 kW, voltage is 380–480 V AC (IEC 60038), and water consumption is 2–10 m³/h. Noise level at operator position is 70–85 dB(A) (ISO 3746). Material grade options are 304–316L (ASTM A240), IP rating is IP54–IP65 (IEC 60529), and footprint is 8–20 m². These values are directory reference ranges and must be confirmed for the specific model and application with the legal manufacturer or supplier. The tunnel is designed for integration into a processing line, with interfaces for water supply, drainage, electrical power, and control systems. Verification questions should address actual performance under production conditions, compliance with relevant standards, and maintenance requirements. Maintenance signals include reduced cleaning effectiveness, increased pressure drops, or unusual noise. Failure boundaries include loss of sanitizing concentration, temperature deviations, or mechanical breakdowns. Always verify model-specific values and standards with the supplier.

Working Principle

Fish products are conveyed through a tunnel containing multiple sequential zones. Each zone typically employs a combination of high-pressure water jets, immersion tanks, or spray systems with specific cleaning or sanitizing solutions (e.g., water, chlorinated water, organic acid rinses). The process progressively removes physical debris and reduces microbial load. The conveyor speed and number of stages are adjustable to achieve the required residence time and cleaning intensity. The system operates with controlled water temperature and pressure, and sanitizing concentration is monitored to ensure efficacy. After washing and sanitizing, a drying stage may be included to remove residual moisture. The entire process is designed to maintain food safety and quality.

Common Materials

Stainless Steel (AISI 304/316)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Processing Capacity	500–2000 kg/h	Depends on product size and conveyor speed
Conveyor Speed	0.5–5 m/min	Adjustable for different residence times
Washing Stages	3–6 stages	More stages for higher hygiene requirements
Water Temperature	20–85 °C	Higher temperature for sanitizing stage
Sanitizing Concentration	50–200 ppm	For chlorine-based sanitizers
Drying Temperature	40–80 °C	For final drying stage
Electrical Power	15–60 kW	Depends on heating and pump requirements
Voltage	380–480 V AC	Three-phase, 50/60 HzIEC 60038
Water Consumption	2–10 m³/h	Recirculation reduces consumption
Noise Level	70–85 dB(A)	At operator positionISO 3746
Material Grade	304–316L SS	316L for corrosive environmentsASTM A240
IP Rating	IP54–IP65	Higher rating for washdown areasIEC 60529
Footprint	8–20 m²	Length 4–8 m, width 2–3 m

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Stainless Steel Conveyor Belt
Transports fish products sequentially through all washing and sanitizing stages.

Material: Stainless Steel
High-Pressure Spray Nozzle Array
Directs pressurized water or sanitizing solution onto products for cleaning.

Material: Stainless Steel, Plastic
Solution Recirculation Tank & Pump
Stores and pumps cleaning/sanitizing solutions to the spray system.

Material: Stainless Steel
Drainage System
Removes wastewater and debris from each stage of the tunnel.

Material: Stainless Steel, PVC
Tunnel Body
The enclosed multi-zone structure the product is named for; separates the sequential washing and sanitizing zones and contains the spray.
Water Temperature Control System
Holds the wash water at the set temperature, which is one of the two conditions the tunnel runs to.
Sanitizing Concentration Monitor
Measures the sanitizer concentration in the recirculated solution so efficacy can be confirmed.
Drying Section Optional
Removes residual surface moisture after the final sanitizing zone.

Manufacturers of Multi-Stage Washing and Sanitizing Tunnel

Manufacturer profiles associated with Multi-Stage Washing and Sanitizing Tunnel.

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Frequently Asked Questions

What is the typical processing capacity of this tunnel?

The directory lists a processing capacity range of 500–2000 kg/h, depending on product size and conveyor speed. The actual capacity for a specific model must be confirmed with the manufacturer.

What materials are used in construction?

The tunnel is typically constructed from stainless steel grades AISI 304 or 316, with 316L available for corrosive environments. Material grade should be verified based on the application.

How many washing stages does it have?

The number of washing stages ranges from 3 to 6, depending on hygiene requirements. More stages provide higher cleaning intensity.

What sanitizing agents can be used?

The system can use water, chlorinated water, or organic acid rinses. For chlorine-based sanitizers, the concentration range is 50–200 ppm. Always follow manufacturer guidelines.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 3 bar (spray nozzles)
flow rate:	5-25 m³/h (water/sanitizer)
temperature:	Ambient to 85°C (sanitizing stage)
slurry concentration:	Up to 15% solids by weight

Multi-Stage Washing and Sanitizing Tunnel

Product Specifications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards