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Home >> Products >> Industrial Specialized Testing >> Light Industry >> Integrated Force and Displacement Thin-Film Heat Shrinkage Tester

Integrated Force and Displacement Thin-Film Heat Shrinkage Tester

Model: UT2107E; ISO 14616, DIN 53369, ASTM D2732

UT2107E Integrated Film Thermal Shrinkage Performance Tester | Shrink Force & Comprehensive Shrinkage Test Equipment

The UT2107E Integrated Film Thermal Shrinkage Performance Tester, widely known across the packaging testing industry as a shrink force tester or comprehensive shrink performance tester, is premium high-precision lab equipment matching global arbitration-grade testing instruments. Unlike conventional oil bath shrinkage machines that only output single shrinkage rate data, this all-in-one unit delivers full multi-dimensional thermal shrinkage characterization for polymer films.

Advanced Core Testing Functions

This integrated thermal shrink tester simultaneously captures real-time test data including temperature, thermal shrinkage force, residual shrinkage force and shrinkage displacement. It automatically calculates machine-direction and transverse-direction shrinkage rates, and records complete mechanical property curves throughout the full film heating and shrinkage cycle. It enables integrated quantitative analysis of both shrinkage dimensional change and shrinkage stress, filling critical testing gaps for polymer material R&D labs, third-party quality inspection institutions and factories conducting export compliance verification.

Full Global Standard Compliance

The UT2107E shrink force testing machine fully complies with authoritative international and national testing standards:

ISO 14616 (Plastics — Heat shrinkable films of polyethylene, ethylene copolymers and their mixtures — Determination of shrinkage stress and contraction stress)

GB/T 34848

DIN 53369

ASTM D2732

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General introduction

UT2107E Integrated Film Thermal Shrinkage Performance Tester | Shrink Force & Comprehensive Shrinkage Test Equipment

Advanced Core Testing Functions

Full Global Standard Compliance

The UT2107E shrink force testing machine fully complies with authoritative international and national testing standards:

ISO 14616 (Plastics — Heat shrinkable films of polyethylene, ethylene copolymers and their mixtures — Determination of shrinkage stress and contraction stress)

GB/T 34848

DIN 53369

ASTM D2732

Key testing indicators:
- Thermal shrinkage rate (MD - machine direction / TD - transverse direction)
- Maximum thermal shrinkage force (tensile force generated as the film tightens when heated)
- Residual shrinkage force (remaining shrinkage stress after cooling, which determines long-term packaging adhesion)
- Real-time full-process force-displacement-temperature curve, shrink-start temperature, temperature corresponding to peak force, residual stress

Key words: integrated film thermal shrinkage performance tester, shrink force tester, comprehensive shrink performance tester, thermal shrinkage force tester, residual shrinkage force measurement, film shrinkage displacement curve, longitudinal transverse shrinkage rate, polymer film heat shrink test, export product compliance testing, third-party material inspection, arbitration-grade testing equipment, ISO 14616 shrink stress tester, ASTM D2732 film shrinkage equipment

Key Features

Test principle
Main features
Overall Structure and Subcomponents
Application
Standard
Complete Hot Shrinkage Standard Test Procedure

Fix the standard-sized sample (110 mm × 15 mm) in the instrument clamp, heat it up to the set temperature (room temperature to 210°C), and use the sensor and displacement measurement system to record the shrinkage force, cooling force, and shrinkage rate during the shrinking process, then finally analyze the material's performance.

Integrated Force and Displacement Thin-Film Heat Shrinkage Tester

1. Specimen Clamping: Standard strip specimens are fixed at both ends to a high-precision force sensor and a laser displacement measurement module, with no pre-stretching or slack; multi-station machines can clamp 3 independent specimens simultaneously (measuring longitudinal, transverse, and parallel samples respectively).

2. Sealed Hot-Air Heating: Pneumatically automatic closing constant-temperature heating chamber, PID closed-loop temperature control, simulating the hot air tunnel environment of a shrink machine; chamber temperature is evenly distributed without local temperature differences.

3. Synchronized Data Collection Throughout

- Heating stage: Internal stress in the film is released when heated, generating a shrinkage tension detected by the force sensor, while the displacement module captures real-time shrinkage;

- Constant temperature hold stage: Records peak shrinkage force and real-time shrinking rate;

- Automatic chamber cooling: Continues to collect cooling shrinkage force (residual tightening force after cooling);

4. Automatic Calculation and Output

The system doesn't require manual dimension measurements, completely eliminating errors from calipers or eye readings, and records temperature, force, and displacement data simultaneously every second to produce a complete test curve report.

1. Precise Temperature Control System

Uses an international brand PID temperature controller, with temperature accuracy up to ±0.2℃, ensuring a stable test environment. The temperature range covers room temperature up to 200℃ and supports multiple temperature gradient settings to simulate real sterilization or transport scenarios (like 121℃ steam sterilization).

2. Non-contact Laser Measurement

Shrinkage measurement range is 0.1%–95%, with 0.001N resolution, avoiding interference from contact measurement. The laser sensor captures sample deformation in real time and displays it dynamically on a 5-inch HD touchscreen, improving test efficiency and data accuracy.

3. Smart Operation and Safety Design

Four-level permission management: startup password protection to prevent unauthorized operation. Overload and power-off memory: automatically saves test data to prevent loss due to sudden power outages. Anti-scald structure: heating chamber door automatically locks, ensuring safe operation.

1: Constant Temperature Hot Air Heating Chamber Assembly (Simulating Heat Shrinkage Conditions)

Sealed Insulated Furnace Body: Double-layer insulation prevents burns from the outer wall and stops heat from leaking out and affecting the environment.

Circulating Hot Air System: Centrifugal fan with airflow guides ensures uniform temperature inside the chamber (≤±0.8℃) with no dead spots.

PID Intelligent Temperature Control Unit: Platinum resistance temperature measurement, temperature control range from room temperature to 210℃, single-point control accuracy ±0.3℃.

Pneumatic Door: Cylinder automatically opens and closes, sample entry speed adjustable in multiple steps (2s rapid entry to avoid premature heating of the sample).

Anti-Airflow Disturbance Fixture: Internal flow guide grilles prevent hot air from directly hitting the film and causing force fluctuations.

2: Force-Displacement Sensing Measurement System (High-Precision Core Instrument Components)
(1) Force Sensor Unit
- Standard range: 0.2–30N (ultra-thin film small range 5N, thick film customizable up to 100N);
- Force measurement accuracy: ±0.08% FS (0.5-grade high-precision sensor, higher than ordinary testing machines’ grade 1 accuracy);
- Each workstation has an independent sensor, no interference, supports single or three-station synchronous testing;
- Built-in auto-calibration program, system prompts for sensor calibration when due, ensuring legally valid data.

(2) Non-contact Laser Displacement Module (Standard on high-end models)
- Displacement range: 0–70mm;
- Displacement measurement accuracy: ±0.01mm, much better than mechanical gratings;
- Non-contact measurement, no friction affecting force results; tracks tiny film shrinkage in real time.

(3) Sample Clamping Fixture
- High-temperature resistant stainless steel clamps, elastic and anti-slip, hold samples without tearing ultra-thin films (suitable for 0.01mm ultra-thin POF film);
- Quick sample insertion/removal, position markings ensure the same initial length each time;
- Standard sample size: 130mm×15mm, fully meeting national standard ISO 14616.

3: Embedded All-in-One Industrial Control System

High-end models use an embedded industrial mainframe built into the instrument itself, rather than a standard desktop PC connected externally:

- Independent isolated DataShield protection system, unaffected by computer viruses or system crashes, ensuring raw test data cannot be tampered with, meeting CNAS lab data traceability requirements;

- All-in-one Windows interface, paired with a dedicated monitor, keyboard, and mouse, with an optional touchscreen;

- Interfaces: USB for data export, network port for connection to lab LIMS management system, printer interface;

- Local storage for massive test data, supporting historical curve comparisons filtered by material, temperature, and batch.

1. Shrink Film Manufacturing Companies (R&D and Quality Control at Factory)

POF cross-linked film, PE bundle film, PVC shrink label film, OPS food shrink film formulation development;

Adjusting blown film temperature, crosslinker dosage, and pull speed, optimizing the process through shrinkage force curves;

Full batch inspection before leaving the factory, while controlling shrinkage rate and shrinkage force to prevent packaging issues for downstream customers.

2. Food, Beverage, and Alcohol Packaging Industry (Incoming Material Inspection)

Mineral water PE bundle film, aluminum can collection film, anti-counterfeit shrink caps for wine bottles, POF film for gift box outer packaging;

Pain points solved: insufficient shrink force causing loose packaging, excessive shrink force causing film burst at high temperatures, labels curling after low-temperature storage (cold shrink force not meeting standards).

3. Pharmaceutical and Medical Device Packaging

Pharmaceutical PVC rigid sheets, shrink film covering for medicine boxes, sterile outer packaging film for disposable devices; pharmaceutical industry inspection data must be traceable, and integrated instruments meet GMP lab data compliance requirements.

4. New Materials R&D Labs, Polymer Departments in Universities

Low-temperature shrink film, high-shrink specialty films, photovoltaic backsheet shrink coatings, shrink tubing for electronic components, and insulation shrink films for batteries performance research; comparing the effects of different modifiers and blend systems on shrink stress.

5. Third-Party Testing Agencies and Quality Inspection Institutes (Arbitration Testing)

Undertake enterprise-commissioned tests, export and foreign trade testing, provide official test reports compliant with GB/T34848 and ISO14616; designated supporting equipment by domestic film industry standard drafting units.

6. Daily Chemicals and 3C Electronics Product Packaging

Shrink film for cosmetic boxes, plastic sealing film for mobile and digital products, quality control of shrink tubing for data cables.

Both force and dimensional:

ISO 14616 Plastics - Heat shrinkable films of polyethylene, ethylene copolymers and their mixtures - Determination of shrinkage stress and contraction stress

GB/T 34848 Determination of shrinkage character for heat-shrinkable films

DIN 53369 Testing of plastic films; determination of the shrinking stress

Only dimension:

ASTM D2732 Standard Test Method for Unrestrained Linear Thermal Shrinkage of Plastic Film and Sheeting

GB/T 13519 Polyethylene heat-shrinkable film for packaging applications

ISO 11501 Plastics Film and sheeting Determination of dimensional change on heating

GB/T 12027 Plastics--Film and sheeting--Determination of dimensional change on heating

ES 4395 Plastics-Film and sheeting - determination of dimensional change on heating.

Sample Pre-treatment: Place the film in a standard environment of 23°C and 50% RH for 4 hours to release internal stress. Cut long strips of 130×15mm, with 3 parallel samples each along the MD and TD directions.

Equipment Preheating: Turn on the hot air chamber and heat to the test set temperature (PE film 120–140°C, POF film 100–120°C, PVC labels 80–100°C), and keep it stable for 10 minutes.

Clamp Samples: Fix the three groups of samples in three-position clamps. The system automatically records the initial length L₀ and zeroes the sensors.

One-Button Test Start: The pneumatic chamber door closes automatically, hot air heats the samples, and the system collects temperature, force, and displacement data throughout the process.

Constant Temperature Stage: Keep the samples at the set temperature according to standard hold time (adjustable 10–30s), and record the peak hot shrinkage force.

Automatic Cooling: The chamber opens for natural air cooling while continuously collecting cold shrinkage force until the temperature drops back to room temperature.

Automatic Report Generation: Calculate the average shrinkage ratio in the longitudinal/transverse directions, maximum hot shrinkage force, and stable cold shrinkage force for the three sample groups, and generate force-displacement and force-temperature curves.

Data Storage / Printing / Export: Save the raw curve data and generate a test report with the standard number.

Main Technical Specification

Heat Shrink Force Range	0.2～30N (5N/10N range customizable)
Force Measurement Accuracy	±0.1%FS
Displacement Measurement Range	0～70mm
Displacement Measurement Accuracy	±0.01mm (laser non-contact)
Temperature range	Room temperature to 200°C
Temperature control accuracy	±0.3°C
Chamber uniformity	≤ ±0.5℃
Number of Stations	1~3 independent stations, synchronized testing
Standard Sample Size	130mm × 15mm
Heating Method	Closed-loop hot air (air bath, compliant with ISO14616)
Data Acquisition Frequency	10Hz (10 sets of temperature/force/displacement data per second)
Output Results	Shrinkage rate, maximum heat shrink force, cold shrink force, full-process curve, peak temperature, shrink start temperature, average value report
Overall dimension(mm)	480 mm (L) × 400 mm (W) × 630 mm (H)
Net Weight	40kg

Standard

ASTM D2732 Thermal Shrinkage Testing for Plastic Films Sheeting –

ASTM D2732 standardized laboratory method to measure the degree of unrestrained (free) linear thermal shrinkage of plastic films and sheets ≤ 0.76 mm (0.030 in.) thick at a specified temperature. Quantifies irreversible rapid linear dimensional reduction when plastic film is exposed to high temperature under zero or minimal external restraint.

ISO 13636 Non-oriented PET Films sheeting test requirement (APET) –

ISO 13636 specifies requirements anf test methods for non-oriented PET (APET) sheets — made from virgin, recycled, or combined PET, thickness < 2.0 mm. It explicitly excludes foamed sheets and shrinkable films (those are covered elsewhere, e.g. biaxially oriented PET in ISO 15988). The mandatory performance tests including Tensile stress at yield, Heat shrinkage, Oxygen transmission rate (OTR), haze value, Intrinsic viscosity (IV).

ISO 15988 Biaxial stretch PET films test methods details –

ISO 15988 specifies requirements for biaxially oriented transparent PET (BOPET) films, mainly used for packaging, either alone or as a laminated layer with other films. The main test stipualted in this standard include tensile strength and strain, Dimensional change on heating, Oxygen transmission coefficient, Water vapour transmission coefficient, Haze, Wetting tension, thickness etc.,

ISO 15987 Biaxially oriented nylon films tensile expansion testing methods –

ISO 15987 specifies classification, mandatory visual, dimensional, mechanical, barrier, optical, surface energy, and food contact safety requirements for transparent BOPA film, supplied in roll form, either used standalone or laminated with PE, CPP, PET, aluminium foil for multi-layer packaging structures. The test stipulated in ISO 15987 mainly include, tensile strength & tensile strain at break, Oxygen transmission coefficient, Dimensional change on heating, Haze, Wetting tension etc.,

ISO 17555 BOPP films biaxial stretch testing methods –

ISO 17555 applies to packaging-grade BOPP films containing ≥95% polypropylene resin; usable as single-layer film or laminates paired with other plastic substrates. The test stipulated in ISO 17555 mainly include, tensile strength & strain at break, Dimensional change on heating (thermal shrinkage), Coefficient of water vapour transmission, Haze, Wetting tension etc.,