Hengyu HY-726-1 Scott Abrasion and Crease Resistance Tester

Overview

The Hengyu HY-726-1 Scott Abrasion and Crease Resistance Tester is a precision mechanical testing instrument engineered for quantitative evaluation of flexural durability, crease retention, and surface abrasion resistance in flexible sheet materials. It operates on the standardized Scott-type reciprocating fold-and-rub principle: two parallel clamps hold a specimen under controlled tension while undergoing synchronized linear oscillation perpendicular to the fold axis. This motion subjects the material to repeated bending, rubbing, and localized stress concentration—mimicking real-world handling, packaging, and end-use fatigue conditions. Designed for laboratories requiring repeatable, traceable mechanical integrity assessment, the HY-726-1 delivers consistent test cycles with programmable count control and digital monitoring, supporting both quality assurance and R&D validation workflows in textile, polymer, automotive interior, and medical packaging sectors.

Key Features

• Robust cast-iron frame with vibration-dampening base, ensuring mechanical stability during high-cycle operation
• Fixed-width clamp system (45 mm nominal width) with precise 35 mm inter-clamp spacing—maintains uniform deformation geometry per ASTM D1388 and ISO 13938-1 alignment principles
• 6-digit LCD counter with user-defined cycle limit, auto-stop function, and non-volatile memory for session recall
• Adjustable stroke amplitude and oscillation frequency within mechanically constrained limits to accommodate varying material stiffness
• Integrated safety interlock preventing operation when access guard is open, compliant with IEC 61000-6-2 EMC and low-voltage directive requirements
• Modular clamp design allows rapid tooling changeover for specimens with differing thicknesses (up to 5 mm), minimizing setup time between test protocols

Sample Compatibility & Compliance

The HY-726-1 accommodates flat, flexible specimens including coated textiles, laminated films, synthetic leathers, rubberized fabrics, and thermoplastic elastomer sheets. Specimen dimensions must permit secure clamping without edge slippage or buckling—typical test strips measure 100 × 45 mm. The instrument is validated for conformance with multiple international and industry-specific standards: GB/T 8948–2008 (polyvinyl chloride artificial leather), GB/T 8949–2008 (coated fabrics), JIS L 1096 (textile abrasion), JIS K 6404–6 (rubber sheet folding endurance), JASO M 403 (automotive interior trim durability), and GMW 3217 (General Motors component flex resistance). While not certified to ISO/IEC 17025, its mechanical repeatability (±1.2% RSD over 10 replicate runs on standard PVC-coated fabric) supports internal method validation under GLP-aligned laboratory practices.

Software & Data Management

The HY-726-1 operates as a standalone electromechanical tester with embedded microcontroller logic—no external PC or proprietary software is required for basic operation. All test parameters (cycle count, stop condition, elapsed time) are stored locally in non-volatile memory and displayed in real time via the front-panel LCD. For laboratories integrating test data into LIMS or electronic lab notebooks, optional RS-232 serial output (available upon request) enables ASCII-formatted cycle log export at termination. The device supports audit-ready documentation: each test record includes timestamp, operator ID field (manually entered), and pass/fail flag based on preset cycle thresholds. While not 21 CFR Part 11 compliant out-of-the-box, the unit can be deployed within validated environments where manual entry and paper-based sign-off meet local QA requirements.

Applications

• Quality control of coated technical textiles used in outdoor gear, military uniforms, and industrial workwear
• Durability screening of laminated films for pharmaceutical blister packaging and food-grade pouches
• Material comparison studies for automotive door panel substrates, headliner composites, and seat cover systems
• Pre-qualification testing of synthetic leather alternatives in footwear and furniture manufacturing
• Failure mode analysis of crease-induced cracking in elastomeric medical device housings
• Correlation studies linking Scott abrasion cycles to tensile strength loss measured via ASTM D5034

FAQ

What types of specimens require preconditioning prior to testing?
Specimens must be conditioned per ISO 139 or ASTM D1776 (20 °C ± 2 °C, 65 % RH ± 4 % RH, minimum 4 hours) to ensure hygroscopic equilibrium—especially critical for cellulosic and polyamide-based substrates.

Can the clamp spacing be adjusted beyond 35 mm?
No—the 35 mm center-to-center spacing is fixed by mechanical linkage design to maintain kinematic consistency across all tests and ensure compliance with referenced standards.

Is calibration certification provided with the instrument?
A factory verification report confirming cycle accuracy (±0.5%), clamp force tolerance (±3 N), and timing stability (±0.2 s per 100 cycles) is included. Full metrological calibration requires third-party service using traceable torque and timing standards.

Does the tester support variable load application during oscillation?
No—this model applies constant clamping force only. Load modulation is not implemented; users requiring dynamic loading should consider servo-controlled alternatives aligned with ISO 13938-2.