HAIDA HD-W812 Fabric Tear Tester
| Brand | HAIDA INTERNATIONAL |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM/ODM) |
| Product Category | Domestic (China-Made) |
| Model | HAIDA HD-W812 Fabric Tear Tester |
| Pricing | Available Upon Request |
Overview
The HAIDA HD-W812 Fabric Tear Tester is a precision mechanical testing instrument engineered for the quantitative evaluation of tear resistance in woven, knitted, nonwoven, and coated textile materials. It operates on the principle of the Elmendorf tear test method (ISO 9073-4, ASTM D1424, GB/T 3917.1, EN ISO 13937-1), wherein a pre-notched specimen is subjected to a controlled pendulum-driven tearing force, and the energy required to propagate the tear across a defined distance is measured in millinewton-meters (mN·m). Designed for laboratory and quality control environments, the HD-W812 delivers high reproducibility in tear strength assessment—critical for compliance verification, material development, and batch release testing in apparel, technical textiles, geotextiles, filtration media, and protective clothing manufacturing.
Key Features
- Elmendorf-type pendulum mechanism with calibrated torsion spring and precision-machined knife edge for consistent notch initiation and tear propagation.
- Dual-range pendulum system supporting measurement ranges of 0–6400 mN·m and 0–32000 mN·m, enabling accurate tear evaluation across lightweight fabrics (e.g., silk, chiffon) and heavy-duty industrial textiles (e.g., canvas, ballistic nylon).
- Integrated digital angular displacement sensor and microprocessor-based data acquisition for real-time torque calculation and automatic tear energy integration.
- Robust cast-iron base and rigid aluminum alloy frame ensure minimal vibration transmission and long-term mechanical stability under repeated impact loading.
- Compliance-ready design featuring traceable calibration certification per ISO/IEC 17025 requirements; optional NIST-traceable calibration kit available upon request.
- Manual specimen clamping with adjustable jaw alignment and standardized specimen holder geometry (per ASTM D1424 Figure 1) to minimize operator-induced variability.
Sample Compatibility & Compliance
The HD-W812 accommodates standard rectangular specimens (63 mm × 76 mm) with a 20 mm slit, as specified in ISO 9073-4 and ASTM D1424. It supports both single-layer and multi-layer fabric configurations, including laminated composites and coated substrates—provided surface uniformity and thickness fall within ±10% tolerance across the test area. The instrument meets essential safety and metrological requirements outlined in IEC 61000-4 (EMC immunity), ISO 12100 (machinery safety), and GB/T 2611 (general requirements for testing machines). Its test methodology is formally referenced in multiple international regulatory frameworks, including EU Regulation (EU) No 1007/2011 (textile labeling), US CPSC 16 CFR Part 1610 (flammability + tear performance correlation), and ISO 13688 (protective clothing mechanical properties).
Software & Data Management
While the HD-W812 operates as a standalone mechanical tester, it supports optional PC connectivity via RS-232 or USB-to-serial interface for data logging and report generation. Compatible software modules provide GLP-compliant audit trails—including user ID, timestamp, calibration status, and raw angular displacement waveforms—with export capability to CSV, PDF, and XML formats. All generated reports include metadata fields aligned with ISO/IEC 17025 clause 7.8.2 (reporting of results) and support 21 CFR Part 11–compliant electronic signatures when deployed with validated third-party LIMS platforms. Calibration records are stored with version-controlled firmware revision history and certificate expiration tracking.
Applications
- Quality assurance of apparel fabrics during incoming inspection and final product release.
- Comparative tear resistance analysis during R&D of sustainable textiles (e.g., recycled polyester blends, bio-based fibers).
- Validation of seam integrity and reinforcement efficacy in technical workwear and military uniforms.
- Regulatory submission testing for medical gowns (ASTM F1670/F1671 barrier performance correlation), filtration membranes, and geosynthetic liners.
- Teaching laboratories conducting standardized textile mechanics experiments per ISO 13937 series curricula.
FAQ
What standards does the HD-W812 comply with?
It is fully compatible with ISO 9073-4, ASTM D1424, GB/T 3917.1, EN ISO 13937-1, JIS L 1096, and TAPPI T414.
Is calibration service available internationally?
Yes—HAIDA maintains authorized calibration partners in North America, EU, and APAC regions, with certificates issued under ISO/IEC 17025-accredited laboratories.
Can the HD-W812 be integrated into an automated QC line?
Not natively—but optional pneumatic specimen handling adapters and PLC-compatible I/O signals (24 V DC) can be configured for semi-automated operation in high-throughput settings.
Does it require annual recalibration?
Per ISO/IEC 17025 and internal QA protocols, annual verification against certified reference masses and angular encoders is recommended; frequency may increase based on usage intensity and environmental conditions.
What maintenance is required?
Monthly cleaning of the pendulum pivot, biannual lubrication of the knife-edge bearing, and quarterly verification of notch alignment using the supplied optical alignment gauge.
