The JML04C2 multifunctional LB membrane analyzer (film puller/membrane balance) produced by Shanghai Zhongchen Digital Technology Equipment Co., Ltd. is a precision measuring instrument for determining the physical and chemical properties of polar organic compounds (amphiphilic molecules). It can dynamically study the monolayer surface facial mask of various polar organic substances (proteins, lipids, polymers, etc.), and record the functional relationship between the molecular surface area (A) of the membrane and the surface tension (r) or surface pressure (π). The famous hypothesis of the bilayer structure of biological membrane lipids and the possible existence of a surfactant in the lungs have been confirmed using membrane balance technology. In recent years, the application of membrane scales in the biomedical field has become increasingly widespread, especially in analyzing the relationship between pulmonary surfactant and neonatal respiratory distress syndrome, adult respiratory distress syndrome (ARDS), and other lung diseases, achieving remarkable results. Subsequently, exogenous pulmonary surfactant was successfully applied to treat RDS (Distress Syndrome). During the process of isolating, extracting or synthesizing pulmonary surfactant, or monitoring the occurrence of RDS clinically, membrane balance is an essential testing tool for studying the surface characteristics of surfactant. This outer membrane balance measurement technology has a wide range of applications in fields such as applied chemistry, biological membranes, liposomes, integrated optics, nonlinear physics, optoelectronics, diluted active sources, LB membranes, supramolecular configurations, etc.

Main functions and features of JML04C2 multifunctional LB film analyzer (film puller/film balance)
1. The operation process and data collection are controlled by a PC computer and a front-end microcontroller to achieve automation and intelligence, minimizing the possibility of human operation errors;
2. Imported key components (including sensors) with accurate testing data and good repeatability;
3. A fully Chinese operating software based on the WINDOW window, with a user-friendly interface, graphics that can be stored and printed, and data that can be processed twice;
4. The liquid tank has a large surface area, high sensitivity, and small leakage;
5. Can automatically measure the surface tension of liquids.
6. R-A and π - A curves can be plotted.
7. The upper and lower limits of membrane tension can be set based on the r-A and π - A curves, and the sliding barrier can be repeatedly compressed and expanded to form a film.
8. Constant tension can be set, and the sliding barrier moves during film pulling to maintain a constant tension.
9. The film pulling speed can be adjusted.
10. The considerate design ensures that the instrument can be used in conventional testing environments, work online with ordinary configured PCs, run smoothly, have low vibration, and low noise;
11. Our company has complete independent intellectual property rights for this instrument, ensuring the rights of users to after-sales maintenance, upgrades, and services. We can also customize specialized models according to user needs.

Main technical specifications of JML04C2 multifunctional LB film analyzer (film puller/film balance)
1. Surface tension measurement range: 0mN/m to 150mN/m (millinewtons per meter)
2. Resolution:< 0.05 mN/m (millinewtons per meter)
3. Testing method: Hanging plate method (WILHELMY TYPE)
4. Liquid tank method: Langmuir liquid tank material: Full PTFE material
5. Liquid tank area: length 300mm x width 100mm (other liquid tank areas can be customized)
6. Compressed area: 90% Sinking well size: diameter 40mm, depth 50mm (other sizes can be customized)
7. Double sliding barrier: Double sliding barrier technology, with low noise, vibration, leakage, and high sensitivity
8. Sliding speed: 0.05~3mm/s (can be freely set)
9. Film pulling speed: 0.02-2mm/s (can be freely set)
10. Pull film mode: up, down
11. Power supply voltage: AC220±10V
12. Power frequency: 50Hz
13. Maximum power consumption:< 150W
14. Working temperature: room temperature, can be connected to an external constant temperature water bath (maximum temperature should not exceed 65 ℃)
15. Working humidity: 30% to 85% relative humidity

JML04C2 multifunctional LB membrane analyzer (film puller/membrane balance) comes standard with the following components:
1. JML04C2 Multi functional LB Membrane Analyzer (Film Pulling Machine/Membrane Balance) Host 1 set
2. 1 stainless steel insulated water jacket
3. 1 PTFE Langmuir slot
4. 1 pair of sliding barriers for PTFE film drawing machine
5. Platinum suspension plate 1 piece
6. 1 control board
7. One three-dimensional stepper motor control system
8. 1 copy of application software
9. 1 copy of instruction manual
10. 1 electronic version of the operation manual

JML04C2 Multi functional LB Membrane Analyzer (Film Puller/Membrane Balance) Price including Tax： RMB 104800.00 (excluding supporting computer, including instrument host, experimental operation software, standard components, free on-site installation and debugging training in major cities in mainland China, one-year warranty service, and lifelong free software upgrade). The area of other liquid tanks can be customized.

JML04C2 Multi functional LB Membrane Analyzer (Film Pulling Machine/Membrane Balance) with Computer：
The JML04C2 multifunctional LB membrane analyzer (film puller/membrane balance) must be equipped with a matching computer before use. If the supplier chooses to provide the matching computer, an additional payment of 4000 yuan per unit must be made to the supplier. The brand computer comes with a three-year on-site warranty from the original factory. If the user configures or uses the existing computer, the requirement is: one USB port and one empty COM port (RS232 serial port).

Introduction to Shanghai Zhongchen
Shanghai Zhongchen Digital Technology Equipment Co., Ltd. won the second prize of National Science and Technology Progress Award in 2019.The company relies on well-known domestic universities and research institutions, widely adopts the latest scientific and technological achievements of relevant experts at home and abroad, and focuses on the development of performance measurement technology products such as colloids and interfaces, powder technology, textile fibers, etc. Our company's products can be widely used in industries such as cosmetics, mineral processing, papermaking, medical and health care, building materials, ultrafine materials, environmental protection, marine, chemical, petroleum, spraying, paint and ink, printing and dyeing, textiles, integrated optics, LCD displays, etc. The company's customer base not only includes major domestic universities and research institutes, but also a large number of multinational enterprises such as Apple, 3M, Foxconn, HOYA Optics, AU Optronics, Samsung Electronics, Philips, OPPO, as well as listed companies such as Weiyuan Biochemical, BYD, Xinwangda, Desai Battery, Helitai, CATL, Changxin Technology, BOE, Ningxia Oriental, Crystal Optoelectronics, Rainbow Holdings, SANDISK, etc. The products are exported to the United States, Egypt, Japan, South Korea, Malaysia, Thailand, India, Indonesia, Singapore, Hong Kong, Macao, Taiwan and other regions.
The company develops and produces more than 60 professional instruments in eight series, including contact angle measurement, surface tension measurement, Zeta potential measurement, LB membrane interface measurement, single fiber measurement, bundle fiber measurement, fabric measurement, microscopic measurement, and customized testing machines. It has complete independent intellectual property rights for its software and hardware, which can guarantee users' rights to after-sales maintenance, upgrades, and services.
Zhongchen's original English word "powereach" means "strength comes from everyone", reflecting Shanghai Zhongchen's core values and corporate culture of "people-oriented, employees and users are the company's greatest wealth". Meanwhile, "POWEREACH" is also a registered trademark of Shanghai Zhongchen and will become one of the most famous international instrument manufacturer brands.