Shrink Tunnels
Shrink tunnels deliver controlled, uniform heat to shrink packaging film tightly around products. As products pass through the heated chamber on a conveyor belt, the film contracts evenly to conform to the product shape, creating a tight, professional package.
Heat Distribution
Heat is ducted to multiple sides of the tunnel chamber for even film shrinkage. Compact units direct heat to the top, bottom, and sides, while higher-capacity models provide full 4-sided heat distribution for consistent results on all product surfaces. This multi-directional approach prevents uneven shrinkage and film distortion.
Temperature and Speed Control
Digital PID (Proportional-Integral-Derivative) temperature control maintains precise, consistent chamber temperatures throughout the production run. Variable speed conveyor drives allow operators to match belt speed to the product size and film type, with speeds ranging from 0-30 fpm on compact units up to 0-120 fpm on high-speed inline models.
Conveyor Types
Tunnel conveyors are available in mesh belt and solid belt configurations. Mesh belts allow heat to reach the bottom of the product for full 360-degree shrinkage. Solid belts provide a stable surface for products that require bottom support during the heating cycle. Both belt types are designed for minimal maintenance and long service life.
Size Range
Chamber sizes range from compact 16" wide by 8" tall units for small product packaging to large 30"+ wide by 19" tall chambers for bigger products or multi-item groupings. Chamber length affects dwell time in the heat zone and ranges from 28" to 60"+, with longer chambers supporting higher conveyor speeds.
Available from these suppliers:
NVENIA
Visit website →
Bessler
Visit website →Specifications
Need a Custom Variant?
We can manufacture this product to your exact specifications. Our team specializes in creating custom packaging solutions tailored to your unique requirements.
Product FAQs & How-Tos
Everything you need to know about this product
Have more questions? Contact our team
Related Products
Automatic Bundling Wrappers
Bundling wrappers apply shrink film around grouped products to create multipacks, overwrapped bundles, and retail-ready packages. Available in semi-automatic push-button and fully automatic inline configurations, these machines handle flat poly films up to 5 mil and process 15 to 18+ packages per minute.
Automatic L-Bar Sealers
Automatic L-bar sealers perform the complete seal cycle without operator intervention after product placement, handling seal areas from 24" x 20" up to 45" x 30". These machines feature self-adjusting seal pads, automatic temperature compensation, heavy-duty dual magnets, and variable speed conveyors for higher-throughput shrink packaging operations.
PVC Shrink Film
PVC shrink film for individual product wrapping, retail packaging, and tamper-evident overwrapping. Manufactured from polyvinyl chloride resin with biaxial orientation for balanced shrink properties. Available in gauges from 60 to 150 (0.6 to 1.5 mil) with centerfold widths from 4 to 36 inches. PVC film shrinks at lower temperatures than polyolefin (215 to 235F), making it compatible with a wide range of L-bar sealers and heat tunnels. Provides high clarity, a glossy finish, and consistent sealing performance for uniform product presentation.
Poly Shrink Bundling Film
Polyethylene shrink bundling film designed for multipacking, collation, and unitizing applications on automated shrink bundling lines. Manufactured from LDPE resin in multi-layer coextruded construction for high tensile strength and puncture resistance. Available in thicknesses from 1.25 to 6 mil (125 to 600 gauge) with widths from 8 to 100 inches. Produces a tight, conforming wrap around grouped products such as beverage multipacks, canned goods, and industrial bundles after passing through a heat tunnel at 300 to 400F.
Semi-automatic L-bar Sealers
Semi-automatic L-bar sealers create an L-shaped seal around products using center-fold shrink film. Seal areas range from 20" x 16" to 24" x 20" with self-adjusting seal pads, automatic temperature compensation, and variable speed soft-start conveyors that feed sealed products directly to a shrink tunnel.
Related Services
New Projects and Industrial Startups
The New Projects and Industrial Startups service provides comprehensive engineering solutions for businesses aiming to establish new manufacturing lines or facilities. From concept to operation, the service supports every step of creating a manufacturing setup tailored to specific goals and requirements.The process begins with an assessment of objectives, operational needs, and budget to develop a detailed, customized plan for the project. Designs are created to maximize efficiency, scalability, and sustainability while ensuring compliance with industry standards and regulations.With expertise in manufacturing systems and facility layouts, the service manages equipment selection, space planning, and installation to develop workflows that enhance productivity and minimize waste. Following implementation, testing and final adjustments are conducted to ensure optimal performance.Utilizing technical knowledge and hands-on support, the service is designed to deliver results aligned with business growth requirements.
Preventative Maintenance Programs
Preventative maintenance programs are designed to maintain manufacturing equipment in optimal condition, ensuring consistent operation and minimizing unexpected disruptions. These programs take a proactive approach by identifying and addressing potential issues before they escalate into significant problems, saving valuable time, money, and resources.What distinguishes these programs? Each preventative maintenance plan is customized based on the specific specifications of the equipment, production goals, and industry requirements. Skilled technicians perform detailed evaluations of systems and create schedules that ensure consistent performance, reducing the risk of material waste and downtime.Preventative maintenance services prioritize productivity, safeguard machinery investments, and support operational reliability. The risk of lost loads and costly inefficiencies is reduced through regular maintenance. Equipped with advanced diagnostic tools and extensive expertise, these services ensure precision and reliability in preserving equipment functionality.Preventative maintenance programs are designed to maximize production potential and ensure long-term performance continuity. Efficient operations and a commitment to reliability make these programs suitable for businesses across industries.
Line Integrations
Line integration services are specifically designed to enhance the efficiency and performance of manufacturing operations. By incorporating new equipment and technology into existing production lines, workflows are optimized for improved speed and reliability. A thorough analysis of current setups is conducted to create tailored solutions that address precise operational requirements.The service prioritizes sourcing and selecting high-quality equipment that integrates effectively into existing infrastructure. This approach minimizes downtime during implementation and ensures long-term reliability while reducing maintenance concerns. Solutions emphasize automation and operational optimization to decrease manual intervention and increase throughput.For businesses operating in competitive industries, utilizing line integration services represents a strategic decision to achieve measurable results. The design and consulting processes ensure all solutions align with production goals, whether scaling operations, enhancing productivity, or meeting regulatory requirements. The program is structured to support sustainable growth and operational improvement.Complete, end-to-end integration services are provided, encompassing project inception, implementation, and ongoing support. The commitment to quality and performance ensures businesses achieve long-term progress and operational success.
Equipment and process audits
The Equipment and Process Audits service is designed to assist manufacturing companies in achieving optimal efficiency and minimizing operational downtime. Through an in-depth evaluation of equipment and processes, bottlenecks, inefficiencies, and opportunities for improvement are identified, which can significantly impact productivity and overall operational costs.What is included in the audits? Industry-standard tools and methodologies are utilized to assess equipment functionality, production line speeds, and overall workflows. Detailed reports are provided, outlining critical findings along with actionable recommendations to enhance system performance. Whether assistance is required in optimizing machinery run times or streamlining production lines, customized solutions are developed to address specific operational challenges.Selecting this service represents an investment in a structured process that delivers measurable outcomes. Implementing the provided recommendations can lead to reduced unplanned downtime, lower operating costs, and extended equipment lifespan. With extensive industry experience, the service is equipped to support companies in achieving sustainable growth through operational improvements.Why choose this service? Engineers and technicians with a comprehensive understanding of diverse manufacturing environments conduct the audits. A commitment to transparent communication and actionable insights ensures that clear value is delivered. The service is designed to enhance manufacturing efficiency through precise and effective audits.
Retrofit and Rebuild
The Retrofit and Rebuild service is designed to enhance the performance and extend the lifespan of industrial equipment. This program involves assessing existing machinery, identifying areas for improvement, and implementing cost-effective upgrades or repairs. By retrofitting and rebuilding equipment, substantial costs associated with purchasing new machinery can be avoided while reducing environmental impact through resource conservation.Each project is tailored to the unique challenges and requirements of production lines. Whether outdated components need upgrading, energy efficiency improvements are required, or reliability enhancements are necessary, customized solutions are developed to ensure operations remain efficient. Modifications are aligned with production goals and comply with relevant standards.This service is ideal for businesses relying on aging equipment but seeking a sustainable and economical way to improve performance. Retrofitting and rebuilding increases equipment efficiency and minimizes downtime during the transition, allowing productivity to be maintained throughout the process. Machinery is restored to optimal function through precise and reliable methods.