China Rubber Material Testing Equipments Supplier

Rubber Material Testing Equipments

Rubber material testing equips engineers and quality-control specialists with the tools needed to evaluate fundamental properties of elastomers under a variety of mechanical, thermal, and environmental conditions. Shijiazhuang Zhongshi Testing Machine Co., Ltd. offers a comprehensive lineup of rubber testing instruments that conform to key international standards (ASTM, ISO, GB) and enable accurate, repeatable results.

Core Testing Methods

• Tensile and Elongation Testing: Determine the stress–strain behavior of rubber materials, including tensile strength, yield point, and elongation at break. Modular grips accommodate dumbbell-shaped specimens, while dual-range load cells provide resolution down to 0.1 N.

• Compression Set Measurement: Follow ASTM D395 protocols to assess permanent deformation after prolonged compression at elevated temperatures (up to 150 °C). Test fixtures hold specimens at specified strain levels while temperature ovens maintain uniform conditions.

• Tear Resistance Evaluation: Using trouser, angle, or crescent tear geometries, the tear tester quantifies the force required to propagate an existing notch. This is essential for seals, gaskets, and molded parts subject to cyclic loading.

• Hardness Testing: Shore A and Shore D durometers measure indentation hardness, offering insight into crosslink density and formulation consistency. Automatic test stands ensure perpendicular probe alignment for reproducible readings.

• Ozone and Environmental Aging: In ozone chambers, specimens under tensile strain are exposed to controlled ozone concentrations (up to 50 ppm) at 25 °C–40 °C to predict surface-crack initiation and resistance. Aging ovens simulate long-term oxidative degradation for up to 168 hours.

Technical Highlights

• Load Capacity: Up to 10 kN for tensile and tear testers

• Temperature Control: ±0.5 °C stability in ovens and chambers

• Ozone Generation: Adjustable from 1 ppm to 50 ppm with humidity control

• Data Acquisition: Real-time recording of force, displacement, temperature, and ozone concentration; exportable to CSV/PDF

• User Interface: Intuitive touchscreen software with multi-language support, programmable test sequences, and automatic report generation

Applications

• Automotive Seals & Hoses: Verifying that engine mounts, door seals, and coolant hoses maintain elasticity and leak-tightness under thermal cycling

• Industrial Gaskets: Ensuring that flange gaskets and static seals resist compression set and chemical attack

• Consumer Goods: Testing rubber soles, grips, and wearable components for flexibility and wear resistance

• Medical Devices: Assessing biocompatible elastomers for catheters, tubing, and prosthetic applications

Shijiazhuang Zhongshi Testing Machine Co., Ltd. provides turnkey solutions including installation, operator training, and accredited calibration services, enabling customers to maintain precise control over rubber material quality and performance over time.