ASTM D4018 Fiberglass Thread Test
The ADJQ253B Pneumatic Side-Action Grip is a precision pneumatic tensile grip developed for testing in accordance with ASTM D4018, Standard Test Methods for Properties of Continuous Filament Carbon and Graphite Fiber Tows. It is designed for tensile testing of resin-impregnated and consolidated carbon fiber tow specimens with cardboard-reinforced ends. The grip is also suitable for thin, flexible materials, including plastic films, aluminum and copper foils, waterproofing membranes, and textile fabrics.
Overview
The grip uses a single-acting pneumatic lever-amplification mechanism with side-action, parallel clamping. It applies uniform, stable clamping pressure and promotes axial specimen alignment, helping minimize slippage, grip-induced breakage, off-axis loading, and premature failure in the gripping area. Two quick-change jaw options balance secure gripping with specimen protection. The grip is suitable for quality control in carbon fiber manufacturing, university composite-materials laboratories, new-material research and development, and polymer-materials testing. It supports repeatable batch testing for compliance-focused applications in aerospace, new energy, and carbon fiber composites.
Design Features and Benefits
Technical Specifications:
| Parameter | Specification |
| Model | ADJQ253B |
| Rated Load Capacity | 2.5 kN |
| Operating Air Pressure | ≤0.7 MPa (0.4 MPa recommended for standard operation) |
| Maximum Clamping Force | 5.5 kN |
| Complete Grip Set Weight | 5.0 kg (one upper and one lower grip) |
| Standard Jaw Dimensions | 38 × 25 mm |
| Serrated Jaw Geometry | 90° tooth tips, 0.6 mm pitch, 45° inclination angle |
| Rubber-Faced Jaw Configuration | 1 mm soft-rubber cushioning layer |
| Actuation | Single-acting pneumatic side-action |
| Control | Foot-operated directional control valve with airflow throttling for actuation-speed adjustment |
| Primary Test Applications | ASTM D4018 tensile testing of carbon/graphite fiber tows; general tensile testing of films, foils, and fabrics |
Why Choose Us?
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• We provide 7×24 technical consultation, operator training, and timely software updates.
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• We offer remote monitoring of equipment status, enabling rapid diagnosis and resolution when abnormalities occur.
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• Keeping up with the latest development of widely adopted international standards from ASTM, ISO, etc. to ensureyour test results relevant and credible
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• Maximizing your lab investment returns with tailored solutions to your unique needs from cost effective hardware tosoftware customization
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• We treat everyone, be it clients, colleagues or partners, with honesty and sincerity.
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• Staying at the forefront of testing technologies that continuously improve test accuracy, repeatability, and eficiency
