Continuous Washing System (Tunnel Washer)
A continuous washing system, commonly known as a tunnel washer, is an industrial laundry solution designed with multiple washing chambers arranged in sequence. Unlike conventional washer-extractors that operate batch by batch, a tunnel washing system is designed to move laundry through successive washing stages as part of a continuous process. This makes it suitable for industrial laundries that require high throughput and stable processing capacity.
In a continuous washing system, laundry enters the machine and moves through a series of chambers configured for different stages of the washing process. Depending on the system configuration, the tunnel washer can be integrated with loading, extraction, drying and textile finishing equipment to form a complete industrial laundry line.
What Is a Continuous Washing System?
A continuous washing system, also known as a Tunnel Washer, is an industrial washing machine designed with a tunnel structure consisting of multiple interconnected processing chambers. Laundry enters the system and moves through the chambers according to the configured washing process.
The multi-chamber design allows different stages of the washing process to be distributed across the system according to the type of laundry, soil level, required throughput and washing chemistry. This makes tunnel washing systems particularly suitable for high-volume industrial laundry operations.
How Does a Tunnel Washer Work?
In a tunnel washer, laundry enters the first chamber and continues through subsequent chambers according to the configured process. Each chamber can perform a specific part of the washing process, such as washing, chemical treatment or rinsing.
The number of chambers and the internal configuration are determined according to the requirements of each laundry operation. Modern tunnel washing systems can incorporate solutions for water management, chemical dosing, heating, water recovery and automated laundry transfer to support consistent industrial-scale operation.
LAVATEC Continuous Washing System
LAVATEC develops LAVA Trac Tunnel washing systems that are configured according to the requirements of each laundry operation. The manufacturer's current product information lists filling capacities from 35 kg to 130 kg and configurations of up to 20 chambers.
LAVATEC tunnel washing systems are available with different laundry transfer concepts, including Bottom Transfer and Center Transfer. These configurations can be selected according to the required throughput, water flow, laundry transfer process and type of textile being processed.
Each LAVATEC tunnel washer is individually planned in coordination with the laundry requirements and washing chemistry. The manufacturer emphasizes the precise coordination of system technology, washing processes and chemistry to achieve the required quality, efficiency and resource conservation.
TRANSFERON Continuous Washing System
TRANSFERON develops CBW / Tunnel Washer Systems for industrial laundry operations requiring high-volume textile processing. According to the manufacturer's current information, the Tunnel Washer can operate continuously or in batches and is used in textile factories, laundromats and industrial laundry operations.
The TRANSFERON Tunnel Washer features a 304 stainless steel inner drum and a heavy-duty structural design. The manufacturer also highlights its bottom transfer system, designed to support smooth laundry transfer while reducing blockage and linen damage.
The system incorporates solutions for water intake, drainage, chamber-to-chamber transfer, heating, variable-frequency drive operation and water recycling. Its washing design includes counter-flow rinsing, lint filtration, dedicated recycled-water tanks and proportional water and detergent dosing based on the actual laundry weight.
Key Features of Continuous Washing Systems
Multi-Chamber Washing Design
The multi-chamber structure allows the washing process to be divided into successive stages. The number of chambers and their configuration can be selected according to laundry volume, textile type, washing process and project requirements.
Continuous Processing
Instead of stopping the entire washing process to unload each batch, a tunnel washer organizes laundry processing through successive chambers. This operating concept is suitable for laundries that need stable processing capacity over extended operating periods.
Water and Chemical Management
Modern tunnel washing systems can incorporate water supply, drainage, heating, water recovery and chemical dosing solutions according to the washing process. These elements need to be considered together with textile type and required washing results.
Automation Capability
Continuous washing systems can be integrated with equipment and control systems throughout the laundry line to reduce manual handling and maintain consistent operation. The level of automation can be selected according to the scale and requirements of each project.
Integration with Industrial Laundry Lines
A tunnel washer is normally designed as part of an industrial laundry line rather than as an isolated machine. Depending on the project, the system can be integrated with loading equipment, extraction presses, dryers and textile finishing equipment.
Advantages of a Tunnel Washing System
- High throughput: suitable for industrial laundries processing large volumes of textiles.
- Continuous processing: laundry moves through successive washing stages within an organized workflow.
- Flexible configuration: chamber quantity, laundry transfer method and system components can be configured according to project requirements.
- Automation capability: can be integrated with equipment and control systems throughout the laundry line.
- Resource management: water, heating and chemical management solutions can be incorporated according to the washing process.
- Industrial line integration: can be combined with extraction, drying and textile finishing processes.
Applications of Continuous Washing Systems
Continuous washing systems are suitable for industrial laundry operations that require high-volume textile processing, including:
- Large-scale industrial laundries.
- Commercial and centralized laundry facilities.
- Hotel and resort laundry operations.
- Hospital and healthcare laundry operations.
- Textile factories and textile processing facilities.
- Industrial laundry lines requiring increased throughput and automation.
Choosing the Right Continuous Washing System
Selecting a tunnel washer should be based on the requirements of the entire laundry operation rather than the nominal capacity of the washing system alone. Important factors include:
- Daily or hourly laundry volume.
- Textile type and soil level.
- Washing process and chemical requirements.
- Expected operating hours.
- Number of chambers and system configuration.
- Laundry transfer method between chambers.
- Available floor space and installation conditions.
- Water, steam or heating requirements.
- Chemical supply and dosing system.
- Capacity of extraction, drying and textile finishing equipment.
- Automation requirements and future expansion plans.
For high-volume projects, the system should be designed together with the complete laundry line to maintain balanced processing capacity between stages and minimize potential bottlenecks.
LAVATEC and TRANSFERON Continuous Washing Systems at PAN
PAN provides and implements continuous washing systems for industrial laundry projects, including solutions from manufacturers specializing in Tunnel Washer and CBW technology such as LAVATEC and TRANSFERON.
Based on laundry volume, textile type, washing process, facility layout and automation requirements, PAN can provide consultation on suitable system configurations and consider the integration of the washing system with extraction, drying and textile finishing processes throughout the laundry line.
Contact PAN for Solution Consultation
If your business is looking for a tunnel washer or continuous washing system for an industrial laundry facility, PAN can provide consultation on a suitable solution based on actual laundry volume, facility scale and operating conditions.
PAN supports consultation, site and operational requirement assessment, system configuration recommendations and quotation for each project.
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