As the functional film industry upgrades towards high-end and refined products, accurate characterization of the biaxial tensile properties of materials is a core aspect of R&D breakthroughs and quality control. POTOP Co., Ltd. (hereinafter referred to as "POTOP") has been deeply involved in the field of experimental analytical instruments. Relying on years of technical accumulation, it has independently developed the FOCI-10 biaxial tensile testing instrument for films. With its stable and reliable performance and innovative and pragmatic technical design, it provides professional testing support for the R&D and production of polymer materials.

The FOCI-10 Film Biaxial Strength Tester focuses on the industry's core needs for testing accuracy, operational flexibility, and data reliability. It achieves multiple breakthroughs in its technical architecture, and all technical parameters have undergone rigorous verification to ensure consistency with official product data.
Multi-dimensional Stretching Control Technology: Supports three core modes: bidirectional synchronous, bidirectional asynchronous, and unidirectional stretching. The X and Y axes can be independently set for stretching speed and magnification, with a maximum stretch ratio of 10:1. It can accurately simulate the stress and deformation process of films under different production processes and is suitable for testing various crystalline and amorphous polymer materials such as PET, PA, PP, PS, and EVA.

- High-precision measurement and control system: Utilizing a servo motor and lead screw guide for loading, the test force measurement range covers 0.2%-99.99%FS, with a relative error of force value controlled within ±0.5%, and a displacement resolution of 0.001mm. Temperature control accuracy is ±3℃, and the effective tensile space is 300×300mm, meeting the precise testing needs of thin film samples with a thickness of less than 2mm. Data repeatability and stability are significantly superior to traditional equipment.
- Optimized structural design: Drawing on advanced track layout concepts, the equipment's transmission structure is simplified. Equipped with adjustable inner and outer rails, it reduces daily maintenance difficulty and allows for fine-tuning of the spacing to adapt to samples of different sizes, improving the equipment's versatility. The entire machine adopts a modular design, and the selection of core components strictly adheres to industrial-grade standards, ensuring continuous and stable operation 24 hours a day.
With the core design principles of Practicality, Precision and Efficiency, the FOCI-10 Biaxial Film Stretching Tester forms differentiated advantages in performance and user experience, perfectly meeting the dual needs of laboratory R&D and production line quality control.
Traceable Accurate Data: Integrated with a multi-channel data acquisition system, it can synchronously record key parameters such as stress, strain, displacement and temperature during the stretching process, and automatically generate test reports in line with industry standards. The data supports local storage and export, meeting the needs of R&D data traceability and production quality control filing.

Intelligent and Convenient Operation: Equipped with independently developed control software, it supports test parameter presetting, automatic process operation and real-time curve display. Operators can complete the whole process from sample clamping to result analysis through a clear interface, greatly reducing human operation errors. The equipment has an overall dimension of 3700×2100×1900mm and a weight of about 3500kg, with a moderate floor area, suitable for the conventional layout of laboratories.
Stable and Durable Design: The core transmission components are treated with enhanced wear resistance, and the chain clamp holding system adopts an adaptive design to ensure uniform stress on the sample during stretching and avoid slipping or local damage. Passing multiple environmental adaptability tests, it can operate reliably for a long time under the conventional temperature and humidity conditions of laboratories.
With flexible test configuration and stable performance, the FOCI-10 Biaxial Film Stretching Tester has been widely applied in new energy, packaging materials, electronic and electrical appliances and other fields, becoming a key equipment for R&D research and quality control.
R&D Scenarios: Providing core data support for formula optimization and process parameter adjustment of materials for universities, research institutions and enterprise R&D departments. By analyzing the changes in mechanical properties during the stretching process, it helps screen the optimal additive ratio and forming process, shortening the R&D cycle of new materials.
Production Quality Control Scenarios: For the production process of products such as packaging films, lithium battery separators and photovoltaic backsheet films, it can quickly sample and test key indicators such as film tensile strength, elongation at break and elastic modulus, timely detect deviations in production processes, and ensure the consistency of product quality.
Special Test Scenarios: It can be customized and upgraded with area-expanded stretching tooling and software to realize special stretching requirements such as 1×1 to 2×2, providing customized test solutions for the special performance research of functional films (such as high barrier films and heat shrinkable films).

Adhering to the technical philosophy of Innovation-led and Pursuit of Perfection all the time, POTOP has developed the FOCI-10 Biaxial Film Stretching Tester with in-depth integration of industry pain points and customer feedback. Instead of pursuing excessive fancy function accumulation, we focus on core testing needs for continuous optimization. From technical selection to production assembly, each process follows strict quality control standards to ensure that the equipment is stable in use, accurate in testing and reliable in performance in practical applications.
In the future, POTOP will continue to be market-oriented, rely on the technical advantages of a specialized, sophisticated and innovative enterprise, continuously promote the technological iteration of film testing equipment, and make intensive efforts in intelligence and greenization, so as to provide higher-quality products and services for the high-quality development of the polymer material industry.
For detailed technical parameters, application cases or offline visits of the FOCI-10 Film Biaxial Stretcher, please contact the official service team of POTOP. We will provide you with professional consulting and solutions.
Contact Person: Manager Zhang
Tel: 86-15099958922
Email: 721386668@qq.com