Cool Down Tunnel for Glass & PET Bottles

Custom Design, Manufacturing, Installation, and Supply of Industrial Cool Down Tunnels

Bangkok Engineering and Machinery Co., Ltd. (BEM) designs, manufactures, installs, and supplies Industrial Cool Down Tunnels for beverage and food production lines.

Our Cool Down Tunnel is designed to gradually reduce the temperature of filled bottles after hot filling or heat processing, helping protect product quality, maintain bottle integrity, and prepare products for labeling, packaging, and downstream handling.

Suitable for both glass bottles and PET bottles, the system provides efficient, continuous cooling for medium- and high-speed production lines.

Machine Features

High-Capacity Cooling Tunnel

The tunnel features an internal chamber measuring approximately 2.0 meters wide and 6.0 meters long, providing ample cooling space for continuous bottle processing.

Equipped with 225 precision water spray nozzles, the system ensures uniform water distribution and consistent cooling across all bottles moving through the tunnel.

Integrated Water Circulation System

The cooling tunnel incorporates an internal water storage tank and is equipped with three to four 3 HP water pumps, delivering a stable, high-volume water circulation system for efficient heat removal.

Three-Lane Bottle Conveyor

A three-lane infeed conveyor automatically transfers filled bottles to the tunnel entrance. The conveyor system is designed to circulate bottles efficiently, ensuring complete coverage throughout the cooling chamber and maximizing cooling performance.

High-Temperature Resistant Conveyor Belt

The internal conveyor utilizes a specially engineered PP Grey plastic modular belt capable of withstanding temperatures of up to 100°C, making it ideal for hot-filled products and demanding industrial environments.

Stainless Steel Safety Cover

The tunnel is fitted with stainless steel access covers that can be easily opened for maintenance and cleaning. Ventilation openings located at the center of the covers allow excess heat and steam to escape efficiently, maintaining stable operating conditions inside the tunnel.

Technical Specifications

Key Benefits

Uniform Cooling Performance

The multi-nozzle spray system ensures every bottle receives consistent cooling, reducing thermal shock and helping maintain product quality throughout production.

Optimized for Hot-Fill Production Lines

Designed specifically for hot-filled beverages and liquid products, the tunnel gradually lowers product temperature before labeling, packing, or palletizing.

Reliable Continuous Operation

The integrated water circulation system and heavy-duty pump configuration provide stable cooling performance for continuous industrial production.

Durable Industrial Construction

Manufactured from Stainless Steel 304 and premium industrial materials, the cooling tunnel offers excellent corrosion resistance, hygiene, and long-term durability in food and beverage manufacturing environments.

Easy Maintenance

The stainless steel access covers provide convenient access for cleaning and routine maintenance, while the built-in ventilation system efficiently releases heat and steam to maintain optimal operating conditions.

Applications

The Cool Down Tunnel is suitable for production lines handling:

• Drinking water

• Fruit juice

• Tea and coffee beverages

• Herbal drinks

• Milk and dairy beverages

• Sauces and condiments

• Syrups

• Cooking oil

• Pharmaceutical liquids

• Cosmetic and personal care products

• Other hot-filled liquid products

The system can be seamlessly integrated into a complete production line, including bottle rinsing, filling, capping, cooling, labeling, shrink wrapping, carton packing, palletizing, and conveyor automation.