Thwing-Albert ProGage Touch Precision Thickness Tester

Overview

The Thwing-Albert ProGage Touch Precision Thickness Tester is a high-accuracy, motorized, self-weighted thickness gauge engineered for repeatable, standardized measurement of low-compressibility and highly compressible sheet materials—including paper, tissue, nonwovens, plastic films, and foils. It operates on the principle of controlled-force mechanical compression between a precision-ground anvil and a calibrated pressure foot, with force applied via gravity-driven lever arms and user-selectable augmenting weights. This design ensures compliance with internationally recognized thickness measurement protocols where specimen deformation under load must be precisely defined and reproducible. Unlike spring-loaded or pneumatic systems, the ProGage Touch eliminates operator-dependent variability by maintaining constant, traceable contact pressure across the full measurement cycle—critical for standards such as ISO 534 (Preferred Method), ASTM D374, TAPPI T411, and EDANA 30.5. Its microprocessor-controlled actuation, real-time sampling at 128 Hz, and dual-range displacement transduction enable sub-micron resolution and statistical integrity required in QC laboratories, R&D facilities, and contract testing environments operating under GLP or ISO/IEC 17025 frameworks.

Key Features

• Full-color capacitive touchscreen interface with intuitive navigation, customizable test profiles, and one-touch statistical summary (mean, min, max, standard deviation)
• Motorized pressure foot with fully adjustable speed (0.33–12.7 mm/sec), dwell time (0–20.0 s), opening distance (1.65–19.05 mm), and return velocity
• Modular pressure foot system supporting interchangeable diameters (4.83–56.41 mm) and pre-calibrated force configurations—from 0.5 kPa (nonwovens) to 172.4 kPa (rigid films)—each traceable to ASTM, ISO, and TAPPI specifications
• Standard 63.5 mm (2.5 in) anvil; optional 107.9 mm (4.25 in) anvil compliant with EDANA 30.4–89 and ISO 9073-2 for bulk-sensitive nonwoven testing
• Onboard data storage for up to 99 test sessions; direct export via USB 2.0 to flash drives or network-connected PCs
• Password-protected administrator mode with four predefined user profiles, screen access restrictions, and parameter lockout capability for audit-ready operation
• Integrated digital level sensor for rapid instrument leveling—essential for maintaining parallelism tolerance of ±0.001 mm across all ranges
• Firmware-upgradable architecture enabling remote calibration updates and feature enhancements without hardware intervention

Sample Compatibility & Compliance

The ProGage Touch is validated for use across diverse material classes defined by industry-standard test methods. For paper and board, it supports ASTM D645 (low-load), ASTM D374 (multiple load options), ISO 534 (Preferred and Alternative Methods), and GB/T 451.3. In tissue and towel applications, the 35.7 mm tissue foot delivers 2.0 kPa pressure per ISO 12625-3 and TAPPI T580. Plastic film measurements comply with ASTM D6988 (very thin/deformable films) and ASTM D4321 (multi-layer laminates) using the 6.35 mm film foot at 51.7 kPa or 172.4 kPa. Nonwoven thickness is measured per EDANA 30.5, ISO 9073-2, and GB/T 24218.2-2009 using the 56.4 mm foot at 0.5 kPa—ensuring minimal compression artifact in high-loft structures. All configurations are supplied with NIST-traceable calibration certificates and documented uncertainty budgets aligned with ISO/IEC 17025 Clause 6.5 requirements.

Software & Data Management

The ProGage Touch integrates seamlessly with two optional software platforms: DAS (Data Acquisition Software) and MAP4 (Measurement Analysis Platform v4). DAS provides Windows-based real-time data capture, limit-based pass/fail trending, and CSV/Excel export—ideal for routine QA reporting. MAP4 extends functionality with time-resolved thickness profiling during dwell phase, dynamic thickness-vs.-time curve visualization, user-defined variable tracking (e.g., batch ID, operator, humidity), and automated statistical summaries compliant with FDA 21 CFR Part 11 Annex 11 requirements—including electronic signatures, audit trails, and immutable data archiving. Both packages support configurable report templates, PDF generation, and integration with LIMS systems via ODBC or RESTful API endpoints. All software installations undergo IQ/OQ validation documentation support upon request.

Applications

• Quality control of coated paper, label stock, and packaging board per ISO 3034 and EN 20534
• Thickness uniformity assessment of spunbond/meltblown nonwovens used in medical gowns and filtration media
• Calibration verification of gravure and flexographic printing cylinders via substrate thickness mapping
• R&D evaluation of biodegradable films under variable humidity and temperature conditions (10–50°C, 10–85% RH)
• Conformance testing of battery separator films per ASTM D8136 and IEC 62620
• Process validation for continuous web coating lines using optional auto-feeder (Model 00089-2020)

FAQ

Does the ProGage Touch meet ISO/IEC 17025 requirements for accredited testing labs?

Yes—the instrument’s documented measurement uncertainty, traceable calibration hierarchy, and MAP4’s 21 CFR Part 11-compliant audit trail satisfy Clause 7.7 and Appendix A of ISO/IEC 17025:2017.
Can I switch between measurement ranges without recalibration?

No—each range (40/100/200/500 mil) requires dedicated transducer calibration. Range selection is fixed at time of order; cross-range use voids accuracy specifications.
Is the pressure foot force automatically compensated for ambient temperature drift?

No—mechanical weight-based loading is inherently temperature-stable. However, the instrument includes automatic zero-drift compensation and periodic calibration reminders to maintain long-term stability.
What is the maximum sample width supported with the optional auto-feeder?

The 00089-2020 Sample Feeder accommodates samples up to 177.8 mm (7 in) wide and enables programmable inter-measurement spacing from 0 to 50.8 cm.
Are firmware updates provided free of charge post-purchase?

Yes—Thwing-Albert offers lifetime firmware upgrades at no cost via secure download portal with version-controlled release notes and installation validation logs.