Fruitprocessingplant.com / Equipment and plant interfaces
Tunnel Pasteurizer
Select tunnel pasteurizer zones, conveyor width and holding profile from package, throughput and temperature requirements.
Product and package heat treatment
Product or service input
Filled, closed containers compatible with the proposed thermal process.
Output and interface
Treated packages exiting the agreed cooling and handling conditions.
View the complete process dutyDiscuss this equipmentSelection boundary
Review container mass, loading density, heat penetration, closure integrity and zone balance.
Liquid flow rate cannot size the tunnel; package behaviour and validated container treatment govern the duty.
Cleaning and maintenance
Review spray-zone access, conveyor service, water management, drainage and start/stop handling of packs.
Information that defines the proposed configuration
A model-specific offer must identify the equipment, verified duty and interfaces. The checks below identify required inputs, not guaranteed machine ratings.
Thermal process
Define filled-container residence time, target product temperature and the allowable heating and cooling rate.
The required thermal history determines tunnel length, zone duty and practical conveyor speed.
Conveyor loading
Provide container dimensions, mass, line speed, spacing and conveyor loading pattern.
Loading density changes water coverage, heat transfer, transfer stability and the number of containers inside the tunnel.
Zone arrangement
Confirm the required heating and cooling zones, available hot water or steam and cooling-water conditions.
Zone balance controls temperature rise, recovery options, cooling duty and utility peaks.
Package integrity
State container material, closure type, internal pressure risk and package integrity limits.
Glass, metal and plastic packages respond differently to thermal shock, pressure and conveyor handling.
What to send for equipment selection
Send raw material, required capacity, final product, packaging format and available utilities. We will use these inputs to review the process route and equipment scope.
Get a Capacity-Based QuoteDiscuss on WhatsAppEngineering Notes for Tunnel Pasteurizer Selection
Tunnel Pasteurizer is commonly discussed for bottled juice, canned beverage, packaged sauce, retail beverage products. The goal is to make this module work as part of a complete fruit and vegetable processing line, not as an isolated catalogue item.
Thermal equipment should be selected from viscosity, pulp content, particle size, acidity, packaging route and target shelf life. Low-viscosity clear juice may suit plate heat exchange, while pulpy juice, puree, sauce or concentrate often requires tubular or tube-in-tube handling. Preheating, holding, cooling, back-pressure and CIP access must be designed as one thermal system rather than as a single machine.
The buyer should provide product pH, Brix, fiber level, particle limits, filling temperature and storage target. Heat treatment that is too mild can create microbiological risk, while aggressive treatment can damage aroma, color and texture. The final sterilization or pasteurization condition must be confirmed by product testing and process validation; values on an early page are only a reference for discussion. The RFQ checklist below should be used to confirm the sizing data before quotation.
- Match heat exchanger type to viscosity and pulp level.
- Confirm holding time, outlet temperature and cooling demand with the packaging plan.
- Review fouling behavior and CIP sequence for sugar, pectin, protein or sauce products.
- Do not finalize shelf-life claims without product validation.
Related planning pages: plate sterilizer for low-viscosity products, tube-in-tube sterilizer for viscous products, and aseptic filling after sterilization. Use them to compare equipment, plant routes and RFQ scope before final quotation.
Equipment-Specific Design Checks
A tunnel pasteurizer treats product after it has been filled and closed, so the process must be designed around the complete container rather than liquid flow alone.
| Design Check | What to Confirm | Engineering Effect |
|---|---|---|
| Thermal process | Define filled-container residence time, target product temperature and the allowable heating and cooling rate. | The required thermal history determines tunnel length, zone duty and practical conveyor speed. |
| Conveyor loading | Provide container dimensions, mass, line speed, spacing and conveyor loading pattern. | Loading density changes water coverage, heat transfer, transfer stability and the number of containers inside the tunnel. |
| Zone arrangement | Confirm the required heating and cooling zones, available hot water or steam and cooling-water conditions. | Zone balance controls temperature rise, recovery options, cooling duty and utility peaks. |
| Package integrity | State container material, closure type, internal pressure risk and package integrity limits. | Glass, metal and plastic packages respond differently to thermal shock, pressure and conveyor handling. |
Equipment FAQ
Which heat exchanger type is appropriate?
Plate systems are commonly discussed for low-viscosity products without large particles. Tubular or tube-in-tube designs are usually considered as viscosity, pulp or particle size increases. Final selection needs measured product data and pressure-drop review.
How is holding time confirmed?
Holding time is based on the product, pH, target microorganisms, packaging route and process authority or validation requirement. Website values are preliminary references and should not replace product-specific thermal validation.
Why must CIP and SIP be discussed with the sterilizer?
Product fouling, sterile boundaries, valve arrangement and filling interface determine how the thermal section is cleaned and sterilized. Treating CIP or SIP as a separate afterthought can create hygiene risk and excessive downtime.
Can Tunnel Pasteurizer be customized?
Yes. Capacity, product-contact or container-contact parts, motor and drive selection, controls, guarding, inlet and outlet arrangement, platform and line interfaces can be configured from the project data listed on this page. Final scope is confirmed before manufacturing.
Why is there no fixed online price for Tunnel Pasteurizer?
The same equipment name can cover different capacity, construction, controls, guarding, accessories and upstream or downstream interfaces. A fixed public price would hide those differences. The RFQ process confirms the required scope before a project quotation is prepared.