Labthink FIT-01 Pendulum-Type Film Impact Tester

Overview

The Labthink FIT-01 Pendulum-Type Film Impact Tester is a precision-engineered instrument designed for the quantitative evaluation of impact resistance in thin, flexible sheet materials—primarily plastic films, laminated foils, metallic foils, and composite packaging substrates. It operates on the principle of pendulum impact testing, where a calibrated hemispherical striker is released from a fixed height to strike a horizontally clamped specimen. The energy absorbed during perforation—calculated from the loss of potential energy of the pendulum—is measured with high-resolution electronic transduction (0.001 J resolution) and directly correlates to the material’s toughness under dynamic loading conditions. Unlike drop-weight or Charpy-style impact testers, the FIT-01 employs a controlled, low-velocity pendulum system optimized for sub-millimeter-thick specimens, ensuring repeatability and minimizing edge effects common in high-strain-rate tests. Its design adheres to the physical basis of energy absorption per unit area, making it suitable for comparative quality control, formulation development, and incoming raw material verification in packaging R&D and production QA/QC laboratories.

Key Features

• Triple selectable impact energy levels (1 J, 2 J, 3 J) via interchangeable calibrated masses—enabling method flexibility across material thicknesses and stiffness ranges;
• Pneumatically actuated specimen clamping and pendulum release mechanism eliminates manual handling variability and ensures consistent preload and trigger timing;
• Integrated horizontal alignment aid system with adjustable leveling feet and optical reference indicators—critical for minimizing angular deviation and ensuring perpendicular impact;
• Microprocessor-based control unit with backlit LCD interface and tactile PVC membrane keypad—supports intuitive parameter selection, real-time test monitoring, and immediate result display;
• Onboard statistical engine automatically calculates and stores up to 20 test cycles per batch, including mean impact energy, standard deviation, and coefficient of variation;
• Standard RS232 serial port and optional Lystem™ Laboratory Data Sharing System compatibility—enables secure, audit-ready data export to external PCs or enterprise LIMS platforms;
• Thermal-stable aluminum alloy frame and hardened steel pendulum shaft—designed for long-term dimensional stability and minimal hysteresis over repeated thermal cycling.

Sample Compatibility & Compliance

The FIT-01 accommodates standard specimen formats per international standards: square (100 mm × 100 mm) or circular (Φ100 mm) samples, secured within dual-diameter clamping apertures (Φ89 mm and Φ60 mm). Interchangeable hemispherical strikers (Φ25.4 mm, Φ19 mm, Φ12.7 mm) allow adaptation to varying surface curvature requirements and ASTM/ISO-defined contact geometries. The instrument fully complies with GB/T 8809–1988 “Determination of Impact Resistance of Plastic Films”, ASTM D3420–2013 “Standard Test Method for Impact Resistance of Plastic Film by the Pendulum Method”, and NF T54-116 “Plastics — Films and Sheets — Determination of Impact Resistance by Pendulum Method”. Its mechanical architecture and calibration traceability support GLP-compliant operation when paired with documented maintenance logs, periodic verification using certified reference masses, and user-accessible calibration mode.

Software & Data Management

The FIT-01 supports both standalone operation and computer-integrated workflows. Its embedded firmware includes built-in audit trail functionality—recording operator ID (via optional login module), test timestamp, energy value, striker ID, clamp size, and environmental temperature (if connected to optional ambient sensor). When used with the optional professional software suite, users gain access to advanced reporting templates compliant with ISO/IEC 17025 documentation requirements, automated pass/fail decision logic against predefined specification limits, and trend analysis across multiple lots or suppliers. All exported data files conform to CSV and XML schema standards, facilitating integration with FDA 21 CFR Part 11–compliant electronic record systems when deployed with digital signature modules and role-based access controls.

Applications

• Quality assurance of food, pharmaceutical, and medical device packaging films during incoming inspection and process validation;
• Formulation optimization of polymer blends and coextruded structures by correlating impact energy with additive concentration (e.g., impact modifiers, plasticizers);
• Accelerated aging studies—quantifying embrittlement trends in UV-exposed or thermally aged barrier films;
• Comparative benchmarking of sustainable alternatives (e.g., PLA, PBAT, cellulose-based films) against conventional PE or PET substrates;
• Technical support for regulatory submissions requiring mechanical performance data aligned with ICH Q5C stability guidelines or USP / biological reactivity assessments.

FAQ

What pneumatic supply specifications are required for reliable operation?
A clean, dry compressed air source delivering 0.6 MPa ±0.05 MPa at minimum 10 L/min flow rate is required. Users must provide an inline filter-regulator-lubricator (FRL) unit upstream of the Φ6 mm polyurethane hose connection.

Is calibration traceable to national metrology institutes?
Yes—Labthink provides factory calibration certificates traceable to CNAS-accredited standards. Customers may request NIST-traceable verification kits for in-house periodic checks of impact energy accuracy.

Can the FIT-01 be integrated into an automated packaging line for 100% inline testing?
No—the FIT-01 is a laboratory-grade benchtop instrument intended for discrete sample testing. For inline applications, Labthink offers complementary non-destructive solutions such as ultrasonic thickness mapping or laser-induced breakdown spectroscopy (LIBS) systems.

Are replacement O-rings and striker tips available as consumables?
Yes—standard O-ring sets (for both Φ89 mm and Φ60 mm clamps) and certified strikers are stocked globally and supplied with full dimensional certification reports (including roundness and surface roughness Ra ≤ 0.4 µm).