HAIDA HD-5079 Automatic Cap Torque Tester

Overview

The HAIDA HD-5079 Automatic Cap Torque Tester is a precision-engineered rotational torque measurement instrument designed for objective quantification of opening and closing torque in threaded closures—primarily plastic and metal caps used on pharmaceutical bottles, food & beverage containers, cosmetics packaging, and household chemical products. Operating on the principle of controlled angular displacement with real-time torque transduction via high-stability strain-gauge load cells, the HD-5079 delivers repeatable, traceable measurements under both static and dynamic conditions. Its architecture conforms to fundamental metrological requirements for mechanical testing equipment, supporting quality assurance workflows in regulated manufacturing environments where closure integrity directly impacts product shelf life, tamper evidence, and consumer safety.

Key Features

• Microprocessor-based control system with backlit LCD interface for intuitive parameter input and real-time display of torque curves, peak values, and statistical summaries.
• Continuous data acquisition at ≥100 Hz sampling rate; automatic peak hold function ensures accurate capture of maximum torque during breakaway or sealing events.
• Dual-mode operation: selectable “tightening” (clockwise) and “opening” (counterclockwise) test protocols, each configurable with independent speed, dwell time, and termination criteria.
• Unit conversion engine supporting direct display in N·m, kgf·cm, and lbf·in—eliminating manual recalculations and reducing operator-induced errors.
• Programmable batch testing: user-defined sample count (1–9), automatic sequential averaging, and in-memory storage of up to 99 test records with timestamp and mode identification.
• Non-volatile memory retains calibration offsets, test parameters, and system configuration across power cycles—ensuring operational continuity and audit readiness.
• Integrated self-diagnostics: real-time error detection (e.g., overload, sensor drift, motor stall), audible/visual alerts, and automatic zero-point compensation prior to each test cycle.
• Compact benchtop footprint (W×D×H ≈ 320 × 300 × 280 mm) with ergonomic height-adjustable base and quick-release chuck mechanism for rapid fixture changes.

Sample Compatibility & Compliance

The HD-5079 accommodates a broad spectrum of closure geometries through its adjustable parallel-jaw clamp system, supporting diameters from 5 mm (e.g., vial caps) to 170 mm (e.g., industrial drum lids). Custom fixtures—including flat-face adapters, concave inserts, and hex-driver couplings—are available for non-standard applications such as automotive mirror adjustment mechanisms, medical device access covers, and contact lens packaging. The instrument meets mechanical and metrological requirements specified in ISO 7886-1 (syringe performance), USP <661> (plastic packaging systems), and FDA-recommended practices for container closure integrity verification. Its test methodology aligns with ASTM D 2063 (torque removal of screw caps), ASTM D 3198 (torque retention of child-resistant closures), and ASTM D 3474 (evaluation of torque/turn relationships)—all critical for GLP/GMP documentation and regulatory submissions.

Software & Data Management

While the HD-5079 operates autonomously via embedded firmware, optional RS-232 or USB-to-serial connectivity enables integration with laboratory information management systems (LIMS) or custom QA databases. Exported CSV files contain raw time-torque series, calculated metrics (mean, SD, CV%), pass/fail flags against user-defined limits, and metadata (operator ID, lot number, test date/time). Audit trail functionality—including operator login timestamps, parameter modification logs, and calibration history—is supported when paired with compliant enterprise software. Data output complies with FDA 21 CFR Part 11 requirements when deployed within validated environments using electronic signatures and role-based access controls.

Applications

• Pharmaceutical packaging validation: verification of torque consistency across blister pack seals, dropper bottle caps, and parenteral vial stoppers.
• F&B quality control: monitoring cap-torque drift during accelerated aging studies or post-sterilization handling.
• Consumer goods R&D: correlation of torque profiles with seal integrity, dispensing force, and perceived ease-of-use.
• Regulatory compliance testing: generation of torque vs. turn curves required by EU Directive 93/42/EEC (medical devices) and China’s YY/T 0681.12–2014 (sterile barrier systems).
• Supplier qualification: objective benchmarking of closure performance across multiple vendors under identical test conditions.

FAQ

What standards does the HD-5079 comply with for pharmaceutical packaging testing?
It supports test execution per ASTM D 2063, ASTM D 3198, and GB/T 17876, which are widely accepted for evaluating torque performance of child-resistant and senior-friendly closures in regulated markets.
Can the instrument measure both clockwise and counterclockwise torque in a single test sequence?
No—it executes one directional mode per test cycle; however, bidirectional evaluation is achievable via two consecutive tests with reversed orientation, and results are stored separately with mode tags.
Is calibration traceable to national metrology institutes?
Yes—HAIDA provides optional NIST-traceable calibration certificates issued by CNAS-accredited laboratories, including uncertainty budgets per ISO/IEC 17025.
How is data integrity ensured during long-term deployment in a production lab?
Through non-volatile memory retention, overload protection circuits, periodic auto-zero routines, and firmware-level checksum validation of stored test records.
Does the HD-5079 support custom fixture design for proprietary closure types?
Yes—HAIDA offers engineering consultation and mechanical drawing review services to develop application-specific gripping solutions compatible with the standard chuck interface.