Stainless Steel Washing Tank for Ultrasonic Vegetable Washers

Product Specifications

Technical details and manufacturing context for Stainless Steel Washing Tank

Definition

A stainless steel washing tank serves as the core cleaning chamber in an industrial ultrasonic vegetable washer. It holds the water-based cleaning solution and the vegetables to be processed. Ultrasonic transducers, typically mounted to the tank's exterior bottom or sides, generate high-frequency sound waves that create microscopic cavitation bubbles within the solution. These imploding bubbles provide a thorough, non-abrasive scrubbing action that removes soil, pesticides, and microorganisms from the vegetable surfaces. The tank's design is critical for efficient energy transfer, solution circulation, and easy loading/unloading of produce. Constructed from austenitic stainless steel (e.g., AISI 304 or 316L), the tank offers corrosion resistance and durability. Key parameters include a capacity of 500–2000 liters, ultrasonic power of 1200–6000 W, and frequency options of 25–40 kHz. Operating temperature ranges from 20–60°C. Material grade (304 or 316L) should be selected based on the corrosiveness of the environment; 316L is recommended for corrosive environments, while 304 suits general use. Surface finish is specified as Ra ≤ 0.8 μm (ISO 4287) to prevent bacterial growth and facilitate cleaning. Wall thickness varies from 2–4 mm for structural integrity. Electrical supply is typically 380 V / 50 Hz / 3-phase (IEC 60038), with a rated power of 5–15 kW. Ingress protection ranges from IP54 to IP65 (IEC 60529) depending on washdown requirements. Overall dimensions range from 2000×1000×1200 mm to 4000×1500×1500 mm, with net weight between 300–800 kg. These values are reference ranges; verify model-specific specifications with the manufacturer.

Working Principle

The tank contains a liquid medium (typically water with optional detergents). Ultrasonic energy is transmitted through the tank walls into this medium, creating alternating high-pressure and low-pressure waves. During low-pressure cycles, microscopic vacuum bubbles form (cavitation). These bubbles rapidly collapse during high-pressure cycles, releasing intense localized energy that dislodges contaminants from vegetables submerged in the tank.

Common Materials

Austenitic Stainless Steel (e.g., AISI 304, 316L)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Tank Capacity	500–2000 L	Determines batch size; larger tanks require more floor space.
Ultrasonic Power	1200–6000 W	Higher power for heavy soil; insufficient power reduces cleaning efficiency.
Ultrasonic Frequency	25–40 kHz	25 kHz for robust cleaning, 40 kHz for delicate produce.
Operating Temperature	20–60 °C	Above 60°C may damage produce; below 20°C reduces cleaning action.
Material Grade	304/316L	316L for corrosive environments; 304 for general use.ASTM A240
Surface Finish	Ra ≤ 0.8 μm	Smooth finish prevents bacterial growth and eases cleaning.ISO 4287
Wall Thickness	2–4 mm	Thicker walls for structural integrity in large tanks.
Electrical Supply	380 V / 50 Hz / 3-phase	Standard industrial power; other voltages available on request.IEC 60038
Rated Power	5–15 kW	Includes ultrasonic generators and pumps; affects energy costs.
Ingress Protection	IP54–IP65	IP65 for washdown environments; IP54 for dry areas.IEC 60529
Overall Dimensions	2000×1000×1200 – 4000×1500×1500 mm	Custom sizes available; ensure clearance for installation.
Net Weight	300–800 kg	Affects shipping cost and floor loading.

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

Tank Body Part
Primary structure containing the cleaning solution and produce. Designed for structural integrity and efficient ultrasonic transmission.

Material: Stainless Steel
Drain Valve
Allows for controlled emptying of the used cleaning solution from the tank.

Material: Stainless Steel or Brass
Overflow Weir/Drain
Manages fluid level and prevents overflow, often connected to a filtration or recirculation system.

Material: Stainless Steel
Mounting Flanges/Brackets Part
Secure the tank to the washer's frame and provide attachment points for ultrasonic transducers.

Material: Stainless Steel

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Frequently Asked Questions

What materials are used for the washing tank?

The tank is typically made of austenitic stainless steel, such as AISI 304 or 316L. The choice depends on the corrosiveness of the environment; 316L is recommended for corrosive environments, while 304 is suitable for general use.

What is the typical capacity range?

The tank capacity ranges from 500 to 2000 liters, depending on the model. Larger tanks accommodate bigger batches but require more floor space.

How does ultrasonic cleaning work in the tank?

Ultrasonic transducers generate high-frequency sound waves that create cavitation bubbles in the cleaning solution. These bubbles implode, releasing energy that dislodges contaminants from vegetable surfaces without abrasion.

What are the recommended operating temperatures?

The operating temperature should be between 20°C and 60°C. Temperatures above 60°C may damage produce, while below 20°C reduces cleaning effectiveness.

Data Basis

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Preliminary Technical Classification

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pressure:	Atmospheric to 0.5 bar gauge (typical), 2 bar maximum design pressure
flow rate:	0-50 L/min (recirculation), 0-200 L/min (drain/fill)
temperature:	5°C to 80°C (operating), -20°C to 120°C (material limits)
slurry concentration:	Up to 15% solids by weight (typical), 25% maximum with agitation

Stainless Steel Washing Tank

Product Specifications

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