Beiguang Jingyi BGJY-3mm×100mm Standard Dumbbell Cutting Die for Polymer Film and Tubing

Overview

The Beiguang Jingyi BGJY-3mm×100mm Standard Dumbbell Cutting Die is a precision-engineered manual die designed for specimen preparation in tensile property testing of polymeric films, thin-walled tubing, and flexible sheet materials. It operates on the principle of controlled mechanical shearing—utilizing hardened steel blades with calibrated edge geometry to produce specimens conforming to ISO 527-3, ASTM D882, and GB/T 1040.3 standards for Type V dumbbell-shaped test pieces. This die ensures dimensional repeatability across consecutive cuts by maintaining consistent blade clearance, parallelism, and perpendicularity—critical parameters influencing tensile strength and elongation-at-break measurement validity. Its design eliminates manual trimming variability, thereby reducing inter-operator error and supporting GLP-compliant laboratory workflows where traceable specimen geometry is mandatory.

Key Features

• High-carbon tool steel construction (HRC 58–62) with surface passivation for extended edge life and resistance to polymer residue adhesion
• Precision-ground cutting edges with ±0.02 mm tolerance on width and ±0.1 mm on overall length
• Integrated alignment guide rails and self-centering specimen retention slot to prevent lateral slippage during actuation
• Modular base plate compatible with standard laboratory press frames (e.g., 10–50 kN hydraulic or pneumatic presses)
• Interchangeable blade sets available for rapid reconfiguration between common standardized geometries (e.g., 4 mm × 75 mm, 6 mm × 115 mm)
• CE-marked mechanical safety compliance; no electrical components or moving parts requiring calibration

Sample Compatibility & Compliance

This cutting die accommodates thermoplastic films (e.g., PET, PE, PP), elastomeric tubing (silicone, EPDM), and rigid polymer sheets up to 1.2 mm thickness. Specimens cut using this die meet geometric requirements for ISO 527-3 (plastics — Determination of tensile properties — Part 3: Test conditions for films and sheets), ASTM D882 (Standard Test Method for Tensile Properties of Thin Plastic Sheeting), and GB/T 1040.3 (Chinese national standard for tensile testing of plastics). The 3 mm × 100 mm configuration specifically satisfies the “Type V” specimen definition in ISO 527-3 Annex A for high-modulus, low-elongation films. All dies undergo dimensional verification per ISO/IEC 17025-accredited metrology protocols prior to shipment.

Software & Data Management

As a passive mechanical tool, the BGJY-3mm×100mm cutting die does not incorporate embedded electronics, firmware, or software interfaces. Its use requires no driver installation, network connectivity, or data logging integration. However, it is fully compatible with LIMS environments through manual entry of specimen ID, batch number, and cutting date into structured test records. Traceability is maintained via engraved serial number on the base plate and optional calibration certificate (available upon request), which documents dimensional verification against NIST-traceable gauges. For laboratories operating under FDA 21 CFR Part 11 or ISO 17025, the die supports audit-ready documentation when paired with controlled SOPs for specimen preparation and operator qualification records.

Applications

• Tensile testing of packaging films in food, pharmaceutical, and medical device manufacturing
• Quality control of extruded polymer tubing used in automotive fluid systems and biomedical catheters
• R&D evaluation of biodegradable film formulations under accelerated aging protocols
• Third-party certification testing per UL 94, ASTM D3045, and IEC 60684-2 standards
• Preparation of specimens for dynamic mechanical analysis (DMA) and creep rupture studies
• Validation of injection-molded thin-wall components prior to environmental stress cracking assessment

FAQ

What standards does the 3 mm × 100 mm configuration comply with?

It conforms to ISO 527-3 Type V, ASTM D882 Type IV, and GB/T 1040.3 Type 5 specifications for tensile specimen geometry.

Can this die be used with automated press systems?

Yes—it integrates seamlessly with programmable hydraulic presses equipped with standard 150 mm × 150 mm platens and adjustable stroke control.

Is calibration required before first use?

No formal recalibration is needed; however, initial verification using certified gauge blocks is recommended per ISO/IEC 17025 Clause 6.5.2.

Are non-standard dimensions available?

Yes—custom geometries (including rectangular, trapezoidal, trouser-tear, and star-moon tear profiles) can be manufactured under NDA with lead times of 3–4 weeks.

What maintenance is necessary to ensure long-term accuracy?

Blades should be cleaned with isopropanol after each use; light honing with 1200-grit diamond paste is advised every 500 cuts to restore edge integrity.