Heat Shrink Tunnels

The shrink tunnel is central to a great shrink wrap machine combo, and at Tengyi, we’ve dedicated over 10 years to perfecting its production. As experienced manufacturers of heat shrink tunnel equipment, our passion is building high-quality, high-performance tunnels designed to fit seamlessly into diverse industries and expertly handle all your unique shrink wrap packaging needs. We make sure our tunnels work for you.

CLASSIFICATION

Main Types of Shrink Heat Tunnels

So, what kind of shrink tunnels are out there? You’ve heard of hot air, steam, and even infrared heating ovens.

As for us, we mainly build two kinds, depending on how they generate heat.

Hot Air Shrink Tunnels

Primarily use heated air as the heat transfer medium, circulating hot air to shrink film

Steam Shrink Tunnels

Transfer heat by injecting steam into the tunnel, shrinking film. Ideal for heat-sensitive products

Featured Heat Shink Tunnels

TENGYI Shrink Heat Tunnels: Versatile, Customizable, Safe

Temperature Versatility

For POF film, 130-150°C is usually sufficient. Our hot air shrink tunnel is also compatible with all other film types, capable of reaching up to 180°C (356°F) for broader applications.

Customizable

Conveyor Speed: Standard 20m/minute; customizable to your production pace.
Tunnel Size: Customizable dimensions to fit all product sizes.
Conveyor Material Options: Choose between Teflon Mesh Belt (for lighter/irregular items) or Stainless Steel Roller Conveyor (for heavier/larger items).

Auto-Shutdown Safety

TENGYI hot air shrink tunnels auto-shut down if temperatures exceed set by 5°C, preventing fire hazards for secure operation.

Shrink Tunnel Showdown: TY4525 vs. TY5030 for Optimal Performance

We have outlined here the differences between our 4525 and 5030 Constant Temperature Shrink Tunnels. If the highest throughput and exact accuracy are your priority, the 5030 tunnel is the standout with increased efficiency, variable control, and heavy-duty insulation. But if you need a solid, affordable option for typical packaging applications, the 4525 model delivers consistently without sacrifice.

Feature	4525 Constant Temperature Shrink Tunnel	5030 Constant Temperature Shrink Tunnel
Heat Source Location	Left and right sides, motor at top for top-down airflow	Bottom of the machine for bottom-up heat distribution
Operation Mode	Top-down airflow, fixed wind speed and direction	Bottom-up airflow, adjustable direction (left/right) and wind speed/volume
Air Circulation Fan	Turbine-style fan blades, non-adjustable speed	Turbine-style fan blades, adjustable speed
Airflow Adjustability	Fixed air vents, no fine-tuning	Fully adjustable airflow direction
Efficiency	1,000–1,200 units/hour	1,500–2,000 units/hour
Thermal Insulation Experience	Noticeably warm, may exceed 40°C	10 cm thick insulation cotton, double-layer design, mild perceived temperature
Packaging Performance	Slightly inferior shrink effect compared to 5030 (same product/film)	Superior shrink effect compared to 4525 (same product/film)
Product Compatibility	Max height: 230 mm, max width: 430 mm	Max height: 280 mm, max width: 480 mm, adjustable to requirements
Visualization	Non-visualizable (air vents on side panels)	Visualizable (bottom airflow allows side panel windows)
Configuration	Huibang (domestic) temperature controller, 750 kW air circulation motor	Dual Schneider frequency converters, Omron temperature controller, 1,500 kW air circulation motor

Core Controllers for Hot Air Shrink Tunnels

Temperature Controller:
Precisely regulates chamber temperature, maintaining it within ±1–2°C of the set point (e.g., 130°C), ensuring consistent operation and optimal shrink performance. e.g The TY-5030 is equipped with Omron Temperature Sensor
Conveyor Speed:
The TENGYI hot air shrink heat tunnel's conveyor typically runs at 20 meters per minute, which works great for most items. But don't worry, if your products need a different pace, we can customize for you!

Why Choose Tengyi Heat Shrink Tunnels

High Quality and Durability

Our Shink tunnels are constructed with heavy-duty steel bodies, welded tubular steel frames, and bases, ensuring long-term durability.

Flexibility and Adaptability

Our heat tunnels seamlessly integrate into existing packaging lines with various sealing warpers

Superior Energy Efficiency

By utilizing heat recovery technology, our tunnels efficiently reuse internal heat, maximizing thermal efficiency and minimizing energy waste.

Widely Used Across Various Industries

Packaging Machine Importers/Distributors: Partner with us to provide top-tier shrink heat tunnels. Seek mutually rewarding, long-term market growth? Complete the form below