SHHZ Palm Folding Gusset Machine | PVC & PET Shrink Sleeve Tubular Label Seaming Equipment
The SHHZ palm folding gusset machine is dedicated production equipment for PVC and PET shrink films. It continuously processes sheet-shaped shrink films into roll-type tubular packaging materials through gluing, laminating, pressing and shaping — integrating edge alignment, gluing, gusset forming and rewinding into one streamlined production line.
Integrated Production Process
The SHHZ gusset machine combines four critical functions into a single continuous workflow, eliminating the need for separate edge alignment, gluing, and rewinding stations:
Automatic Edge Alignment with EPC Photoelectric Correction
High-sensitivity photoelectric EPC web guiding system maintains /-0.1mm tracking accuracy throughout the production run, ensuring precise film alignment before gluing and gusset forming. This prevents edge offset defects that would cause uneven sleeve labels.
Precision Gluing and Laminating Assembly
The gluing assembly applies adhesive evenly across the film edge, followed by a laminating and pressing stage that creates a firm, consistent seal. The sealed seam achieves high transparency — critical for shrink sleeve labels where visual clarity of the full bottle wrap matters.
Gusset Forming and Shaping
After gluing, the film passes through the gusset forming section where it is folded and shaped into the tubular sleeve configuration. The forming process produces accurate, repeatable dimensions with uniform shrinkage characteristics across the entire roll.
Continuous Rewinding System
The rewinding unit winds the finished tubular sleeve material into rolls with maximum rewinding diameter of 700mm. Stable tension control during rewinding prevents telescoping and ensures flat, uniform rolls ready for downstream printing and cutting.
Key Features and Advantages
Firm Sealing and Accurate Dimensions
Finished tubular materials feature firm, consistent sealing with accurate dimensional control — essential for automated shrink label application lines where loose tolerances cause machine jams and misaligned labels.
High Transparency and Uniform Shrinkage
The pressing and shaping process preserves film optical clarity while ensuring uniform shrinkage behavior. This is critical for shrink sleeve labels that must conform tightly to contoured bottle shapes without distortion or wrinkles.
Single-Pass Continuous Production
By integrating edge alignment, gluing, gusset forming and rewinding into one machine, the SHHZ eliminates intermediate handling steps — reducing labor, material waste, and production cycle time compared to multi-station workflows.
Stable Operation for Volume Production
Carbon steel frame construction with 1000kg machine weight provides a stable operating platform. The 5kw total installed power delivers energy-efficient performance at up to 300m/min sealing speed for continuous volume production.
Technical Specifications
|
Model |
型号 |
SHZ-300 |
|
Max.sealing width |
合掌最大宽度 |
300mm |
|
Max.Dia of materiai |
最大放卷直径 |
600mm |
|
Max.Dia of rewind |
最大收卷直径 |
700mm |
|
Max.sealing speed |
合掌速度 |
300m/min |
|
Tolerance of EPC |
纠偏精度 |
±0.1mm |
|
Voltage |
电压 |
380V 50Hz |
|
Power |
总功率 |
5kw |
|
Weight |
机器重量 |
1000kg |
|
Overall dimension |
外形尺寸 |
3180×1450×1550mm |
Application Industries and Materials
PVC Shrink Film Processing
The SHHZ gusset machine processes PVC shrink film into tubular sleeve labels widely used for mineral water bottles, beverage bottles, and condiment bottles. PVC film offers excellent shrinkage uniformity and high gloss finish for premium product presentation.
PET Shrink Film Processing
PET shrink film is processed for applications requiring higher temperature resistance and environmental recyclability. PET sleeves are increasingly preferred in food and daily chemical packaging where sustainability and heat resistance are priorities.
Beverage and Food Packaging
Mineral water, beverage, and condiment manufacturers rely on shrink sleeve labels produced by the SHHZ for full-body bottle wraps that combine 360-degree graphics coverage with tamper-evident sealing.
Daily Chemical Container Labeling
Daily chemical products — shampoo, detergent, cosmetics — use shrink sleeve labels for their combination of moisture resistance, container-conforming fit, and premium shelf appearance. The SHHZ produces the tubular base material these labels require.
Why Choose Sanhui Machinery
Wenzhou Sanhui Machinery Manufacturing Co., Ltd. specializes in converting equipment for film, paper, and packaging materials. The SHHZ palm folding gusset machine represents our commitment to integrated, single-pass production solutions that reduce waste, labor, and cycle time for packaging film manufacturers.
Frequently Asked Questions
What shrink films can the SHHZ gusset machine process?
The SHHZ palm folding machine is designed for PVC and PET shrink films. It processes flat sheet-shaped shrink film into roll-type tubular sleeve materials through gluing, laminating, pressing, and shaping. For other film types, please consult our technical team for compatibility assessment.
What is the maximum sealing width and speed?
The SHZ-300 model has a maximum sealing width of 300mm and a maximum running speed of 300 meters per minute, making it suitable for medium to high volume shrink sleeve label production lines.
How accurate is the edge alignment system?
The machine is equipped with a photoelectric EPC (Edge Position Control) web guiding system with /-0.1mm correction accuracy, ensuring precise film alignment before gluing and gusset forming to prevent edge offset defects.
What is the maximum roll diameter for unwinding and rewinding?
Maximum unwinding diameter is 600mm and maximum rewinding diameter is 700mm. This allows the machine to handle substantial material rolls, minimizing roll changes during continuous production runs.
What power supply does the SHHZ require?
The machine operates on 380V 50Hz three-phase power with a total installed power of 5kw. For regions with different voltage standards, a transformer may be required — please consult our sales team for guidance.
Does Sanhui provide installation and training for the gusset machine?
We supply detailed operation manuals and video guidance for all machines. On-site overseas installation and operator training services can be arranged for bulk orders — please contact our sales team to discuss your specific requirements.
