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Guangde Lvsong Technology Group started recruiting fresh graduates from various prestigious schools this spring in order to achieve better development in the future. This time we walked into Anhui Wanxi University,Mr. Tang, the chairman of our group, personally delivered a speech on the recruitment theme, providing students with a detailed introduction to the development plan of the group company, as well as the industries and products mainly engaged in and produced by the group. This job fair has been recognized by the leaders and students of Wanxi University. We have gained a lot from it. After the briefing, many students stayed behind to submit their resumes and actively consulted our company about the conditions required to work. In the future, we will enter more campuses to continue laying the best foundation for the future.

TF 2024 Shanghai New Energy Lithium Battery Technology Exhibition The 13th Shanghai International New Energy Lithium Battery Technology Exhibition (BTF) opened grandly at the Shanghai New International Expo Center! The exhibition focuses on the latest production technologies and processes of lithium batteries and their materials worldwide, and visitors will have access to the latest technologies and solutions in the lithium battery industry. The exhibition gathers global strength and collaborates with the industry to promote the sustainable development of the lithium battery industry. The enthusiastic participation of domestic exhibition groups also fully demonstrates the earnest expectation and urgent need for business to return to the right track. Important domestic new energy industry cluster enterprises from the Yangtze River Delta, Beijing Tianjin Hebei, Pearl River Delta, Chengdu Chongqing and other regions attended the exhibition, as well as local exhibition groups from Jiangsu, Zhejiang, Anhui and other regions gathered local leading enterprises to showcase their unique products. Elm Vacuum has had a certain influence in the lithium battery new energy industry, closely following market demand. Our independently developed and produced vacuum pumps have made significant breakthroughs and progress in the market. We also brought our vacuum pump and vacuum unit to the exhibition site and received orders on site. At this exhibition, we mainly brought our ZJ type three blade Roots vacuum pump, Main features: Low temperature rise, low vibration, high pressure resistance, energy-saving, high volumetric efficiency, and low noise. Simple structure, good reliability, convenient operation and maintenance. All flat static seals are sealed with O-ring seals, which can be disassembled and reassembled repeatedly. The end cover seal can adopt various forms such as mechanical seal, oil seal, and piston ring. LGB type oil-free variable pitch screw vacuum pump Main features: Compared with equal pitch screw pumps, the pumping efficiency is higher and the energy consumption is lower. The pumping speed range is wide, and it can be directly discharged into the atmosphere. A single pump can achieve the effect of multi-stage series connection. Single stage design can achieve a vacuum degree of 5Pa. Nitrogen blowing can be used for easy cleaning and maintenance. The screw material is integral ductile iron with high strength and stable performance. There is no contact or friction between the screws, no need for lubricating grease, no oil backflow, no waste gas or liquid discharge, and low energy consumption for cleaning and environmental protection. The screw has undergone fine dynamic balance correction, running smoothly, with low noise, low vibration, and long service life. Elm Vacuum continues to strive to provide the highest quality service to customers around the world.

In the New Year, the vacuum pump industry has also ushered in new opportunities and challenges. With the continuous improvement of environmental awareness, vacuum pumps as an indispensable equipment in industrial production, its market demand is also growing. In order to meet market demand, improving product quality and reducing costs has become the direction of vacuum pump industry efforts. First of all, improving product quality is an important goal of the vacuum pump industry. High quality vacuum pumps can not only meet the needs of customers, but also improve the reliability and service life of the equipment. In order to achieve this goal, we need to continuously strengthen our technology development and innovation capabilities, improve the professional skills of our employees, and ensure that products are designed and manufactured to the highest standards. Secondly, reducing the cost is also a problem we have to face. In today's fierce market competition, price has become one of the important factors for customers to choose products. In order to maintain a competitive advantage, companies need to strengthen cost control, optimize production processes and management systems, and reduce unnecessary waste and loss. In addition, environmental protection and energy saving are also the future development trend of the vacuum pump industry. In short, the beginning of the New Year, the vacuum pump industry needs to continue to work hard to improve product quality, reduce costs, strengthen environmental protection and energy saving, only in this way, in order to be in an invincible position in the fierce market competition, to achieve sustainable development. I wish company lvsong in the New Year's performance thriving, harmonious team progress, innovation, and create brilliant!

Expo on Advanced Coating and Film Technologies ( ACFT2024 ) From November 27th to 30th, 2023, the 6th International Conference on Advanced Coatings and Film Technology and the 2023 International Conference on Advanced Coatings and Films and the ACFT2023 Advanced Coatings and Film Technology, Equipment, and Manufacturing Expo were successfully held at Hall 2 of the Shenzhen International Convention and Exhibition Center. At the opening ceremony, special guests from China, Russia, Belarus, Ukraine, Slovakia, Israel and other countries, experts from domestic universities and research institutes, as well as representatives from the media, cooperative units, and enterprises attended the opening ceremony. Elmvac Corporation, as a model enterprise in the vacuum pump, vacuum equipment, and vacuum coating industries, participated in this industrial expo and sponsored the Shenzhen Vacuum Association. At this exhibition, we brought our company's vacuum pump and some accessories for the vacuum pump,Vacuum Products,Vacuum Pump Oil,Hand Vacuum Pump,Liquid Ring Vacuum Pump. Through this exhibition, we have realized our strengths and gaps in the field of vacuum pumps through learning and communication. We will continue to work harder and make our own contributions to the vacuum pump industry in China.

NEU 19th "Vacuum Technology" academic forum On October 8, 2023, our group arranged for our company's technical and sales personnel to study and exchange at Northeastern University. On October 9, the 19th Northeast University Academic Forum on Vacuum Technology, sponsored by the Vacuum Metallurgy Professional Committee, the Vacuum Engineering Professional Committee and the Vacuum Advisory Committee of the China Vacuum Society, and organized by Northeastern University, Chinese Academy of Sciences Shenyang Scientific Instrument Co., Ltd., Lanzhou Institute of Space Technology Physics, and Beijing China Science Instrument Co., Ltd., was opened. At 8:30 am, the opening ceremony of this forum was held at the International Academic Exchange Center of Northeastern University. The ceremony was presided over by Professor Liu Kun, Deputy Secretary of the Party Committee of the School of Mechanical Engineering of Northeastern University, Professor Ba Dechun, the leader of vacuum discipline of Northeastern University, the seventh and eighth vice chairman of the China Vacuum Society, Professor Wang Xiaodong, Professor Zhang Shiwei, and Professor Zhang Yichen, the chairman of the Department of Vacuum and Process Equipment of Northeastern University, and Zhang Zhenhou, the director of the vacuum engineering special committee of the China Vacuum Society and the senior deputy general manager of Shenyang Scientific Instrument Co., Ltd., Chinese Academy of Sciences, Associate Professor Du Guangyu from the School of Mechanical Engineering at Northeastern University, as well as over 130 experts, scholars, and students, attended the ceremony. As the cradle of vacuum talents in China, Dongda Vacuum closely monitors the driving force behind the overall development of the vacuum industry and is committed to promoting the cultivation and improvement of vacuum professionals in China. While delivering a large number of high-tech talents to the industry, Dongda Vacuum has always been paying attention to the continuing education work of vacuum industry practitioners. Since 2004, Northeastern University has successfully held 18 sessions of the "Vacuum Technology" forum in Shenyang, where renowned professors such as Ba Dechun and Wang Xiaodong teach the entire course of vacuum technology in multiple units. The forum has a concentrated time, high effectiveness, abundant information, and strong practicality, making it the most professional academic activity in vacuum technology in China and warmly welcomed by vacuum industry personnel nationwide. It is reported that the 19th "Vacuum Technology" forum course is divided into three parts: "Fundamentals of Vacuum Technology", "Special Topics on Vacuum Equipment and Process Application", and "High end Outlook of Vacuum Industry". The course is taught by teachers with years of teaching experience at Northeastern University. The entire course lasts for one week and officially ends on October 13th Our company, as a key unit, attaches great importance to training vacuum professionals. Therefore, every vacuum industry training conference arranges for company employees to learn and train. Our company has a good influence in the vacuum pump industry, mainly specializing in the production of Roots vacuum pumps, screw vacuum pumps, and vacuum equipment.

On August 18, sponsored by Shenzhen Vacuum Technology Industry Association, Baoan District vacuum industry Technology Innovation Alliance, Shenzhen Vacuum Society, Shenzhen Rongsen Conference and Exhibition Co., LTD., "2023 Yangtze River Delta Advanced Coating and Film Technology Conference" was successfully held in Suzhou in the Water Yifang Hotel. The conference was organized to focus on advanced coating and film technology, a field of great importance to the modern industry. Coating and film technology is widely used in electronics, optics, aerospace, energy and other industries, which not only gives products higher reliability and life, but also promotes the innovation and development of the industry. The Yangtze River Delta region has always been known for its innovation capabilities and industrial advantages, through this conference, continue to promote the innovation and development of advanced coating and film technology in the Yangtze River Delta region. Our group enjoys a high reputation at home and abroad and has a lot of good experience in the vacuum pump and vacuum coating industry. I hope friends from all walks of life will work together to make progress and communicate together. Contribute to the vacuum industry in China. To create our domestic and foreign famous vacuum pump. Vacuum Equipment Liquid Vacuum Pump Dry Screw Vacuum Pump is composed of a pair of screw rotors meshing in the opposite and synchronous way in the pump casing to form the suction and discharge operations. By using the maintenance-free technology, our screw vacuum pump has fewer problems about the difficulty and high cost of maintenance. Liquid Ring Vacuum Pump Seal Without any lubricants and sealing liquid in the pump housing, screw vacuum pumps can be used to recycle many condensable gases. This feature can solve the pollution and eco-issues of many vacuum systems such as the steam-jet pumps, slide valve pumps, rotary vane pumps and liquid ring pumps, meanwhile the recycled materials can create additional economic benefits for clients.

How Does a Vacuum Pump Work? Vacuum is a space devoid of matter where the gaseous pressure inside this volume is below atmospheric pressure. A vacuum pump`s main function is to change the pressure in a contained space to create a full or partial vacuum either mechanically or chemically. Pressure will always try to equalize across connected regions as gas molecules flow from high to low to fill the entire area of that volume. Therefore, if a new low-pressure space is introduced, gas will naturally flow from high-pressure area to the new area of low-pressure until they are of equal pressure. Notice this vacuum process is created not by [sucking" gases but pushing molecules. Vacuum pumps essentially move gas molecules from one region to the next to create a vacuum by changing high and low-pressure states. Vacuum Pump Basics As molecules are removed from the vacuum space, it becomes exponentially harder to remove additional ones, thus increasing the vacuum power required. The pressure ranges are placed into several groups: Rough/Low Vacuum: 1000 to 1 mbar / 760 to 0.75 Torr Fine/ Medium Vacuum: 1 to 10-3 mbar / 0.75 to 7.5-3 Torr High Vacuum: 10-3 to 10-7 mbar / 7.5-3 to 7.5-7 Torr Ultra-High Vacuum: 10-7 to 10-11 mbar / 7.5-7 to 7.5-11 Torr Extreme High Vacuum: < 10-11 mbar / < 7.5-11 Torr Vacuum pumps are classified by the pressure range they can achieve to help distinguish their capabilities. These classifications are: Primary (Backing) Pumps which handle rough and low vacuum pressure ranges. Booster Pumps handle low and medium pressure ranges. Secondary (High Vacuum) Pumps handle high, very high and ultra-high vacuum pressure ranges. Depending on the pressure requirements and operating application, vacuum pump technologies are considered either wet or dry. Wet pumps use oil or water for lubrication and sealing, while dry pumps have no fluid in the space between the rotating mechanisms or static parts that are used to isolate and compressing gas molecules. Without lubrication, dry pumps have very tight tolerancesto operate effectively without wear. Let us look at some of the methods used in a vacuum pump. Capture Pumps Capture pumps, also referred to as entrapment pumps, have no moving parts and are used for applications that require extremely high vacuum pressures. Without moving parts, capture pumps can create a vacuum environment using two different methods. Cryopump (Dry, Secondary): Pressure 7.5 x 10-10 Torr, Pumping Speed 1200 – 4200 I/s One of the methods used by capture pumps, is by trapping gas molecules through cryogenics to trap gas molecules. Cryopumps use cryogenic technology to freeze or trap the gas to a very cold surface. By using extremely cold temperatures, they effectively draw molecules inward to create a vacuum. Sputter Ion Pumps (Dry, Secondary): Pressure 7.5 x 10-12 Torr, Pumping Speed 1,000 I/s Sputter Ion pumps use highly magnetic fields and ionization of gas molecules to make them electrically conductive as a method of entrapment. The magnetic field creates a cloud of electropositive ions that are deposited onto a titanium cathode. In this process, the chemically active materials combine with gas molecules to draw them in and create a vacuum. Transfer Pumps Transfer pumps can operate using two types of methods; Kinetic energy or Positive Displacement. Unlike like Capture Pumps, Transfer pumps are pushing the gas molecules out of the space through the system. What they have in common is they all use a method of mechanically pushing gas and air through the system at different system intervals. Its common that multiple transfer pumps are used together in parallel to provide higher vacuum and flow rate. It is also common to utilize multiple transfer pumps in a system to allow for redundancy in the event of a pump failure. Kinetic Pumps Kinetic Pumps use the principle of momentum through impellers (blades) or introducing vapor to push gas towards the outlet. Turbomolecular Pump (Dry, Secondary): Pressure 7.5 x 10-11 Torr, Pumping Speed 10 – 50,000 I/s. All Kinetic pumps are secondary pumps as they are used for high pressure applications. One dry method is the Turbomolecular pump, which use high speed rotating blades inside the chamber that propel the gas molecules. Transferring momentum from the rotating blades to the gas molecules increasing their rate of moving towards the outlet. These pumps provide low pressures and have low transfer rates. Vapor Diffusion Pump (Wet, Secondary): Pressure 7.5 x 10-11 Torr, Pumping Speed 10 – 50,000 I/s. Vapor Diffusion Pump use high velocity heated oil steam that uses kinetic energy to drag gas molecules from the inlet to the outlet. There are no moving parts and there is a reduced pressure at the inlet. Positive Displacement Pumps The other form of Transfer type is Positive Displacement. The basic principle of a Positive Displacement pump is by expanding the original volume into the chamber they move small, isolated volumes of gas at different stages, compressing to a smaller volume and at a higher pressure expelled to the outside. These pumps operate at lower pressure ranges and are categorized under primary or booster pumps and incorporate wet or dry technologies. Here are the various types of positive displacement primary vacuum pumps: Oil Sealed Rotary Vane Pump (Wet, Primary): Pressure 1 x 10-3 mbar, Pumping Speed 0.7 – 275 m3/h (0.4 – 162 ft3/min) Oil Sealed Rotary Vane pumps compress gases with an eccentrically mounted rotor that turns a set of vanes. Due to centrifugal force, these vanes slide out and form chambers between themselves and the housing. The pumped medium is trapped inside these chambers. During further rotation, their volume is constantly reduced. Thereby, the pumped medium is compressed and transported to the outlet. Rotary vane vacuum pumps are available in single- and two-stage versions. Liquid Ring Pump (Wet, Primary): Pressure of 30 mbar, Pumping Speed 25 – 30,000 m3/h (15 – 17,700 ft3/min) Liquid ring pumps have an off-center impeller with vanes bent towards rotation that form a moving cylindrical ring of liquid around the casing from centrifugal acceleration. The vanes create crescent shaped spaces of different sizes as they rotate and are sealed by the liquid ring. Near the suction or inlet, the volume becomes larger causing the pressure in the each one to drop and draw in gas. As it rotates, the volumes between each vane decreases because of the eccentrical positioned impeller and liquid ring formation. This compresses the gas as it discharges, creating a continuous flow. Diaphragm Pump (Dry, Primary): Pressure of 5 x 10-8 mbar, Pumping Speed 0.6 – 10 m3/h (0.35 – 5.9 ft3/min) Diaphragm pumps are dry method positive displacement vacuum pumps. A diaphragm sits on a rod connected via crankshaft that moves the diaphragm vertically as it rotates. When the diaphragm is in the low position, volume in the chamber increases, lowering the pressure and pulling air molecules in. As the diaphragm moves up, the volume is decreased, and gas molecules are compressed while flowing to the outlet. Both the inlet and outlet valves are spring loaded to react to the pressure changes. Scroll Pump (Dry, Primary): Pressure of 1 x 10-2 mbar, Pumping Speed 5.0 – 46 m3/h (3.0 – 27 ft3/min) Scroll pumps use two non-rotating scrolls in a spiral design, where the inner one orbits and traps a gas in the outer volume space. As it orbits the volume of gas gets decreasingly smaller and smaller, compressing it until it reaches minimum volume and maximum pressure allowed and is expelled at the outlet located at the center of spiral. Roots Style Pumps (Dry, Booster): Pressure <10-3 Torr, Pumping Speed 100,000 m3/h (58,860ft3/min) Root pumps push gas in one direction through two lobes that mesh without touching as the counter rotate. This counter rotating creates maximum flow rate as the volume increases at the inlet at the simultaneously decreasing at the outlet compressing the pressure. These pumps are designed for applications where removal of large volumes of gas is required. Claw Pumps (Dry, Booster): Pressure 1 x 10-3 mbar, Pumping Speed 100 – 800 m3/h (59 – 472 ft3/min) Claw pumps have two rotary claws that counter rotate. They are extremely efficient, reliable, and low maintenance, and often used in harsh industrial environments. The Claws come within 2/1000`` of each other, but never actually touch. This minimal clearance between the Claws and the chamber housing optimizes the internal seal, eliminating wear and the need for lubricants or oils. Screw Pumps (Dry, Booster): Pressure 1 x 10-2 Torr, Pumping Speed 750 m3/h (440 ft3/min) Screw pumps utilize two rotating screws horizontally placed along the inside of a chamber, one left-handed and one right-handed, that also mesh without contact. Gas molecules introduced at one end are trapped between the two screws, and as they turn in opposite directions gas is pushed into space with decreasing volume, compressing it as it reaches outlet and creating a reduced pressure by the inlet. Conclusion As you can see, determining what vacuum pump you may need for your gas removal process can vary on so many factors. These include pumping pressure and speed ranges, flow rate, gas type application, volume size, life expectancy and the location of your system. This can be a daunting task that can be time consuming and costly if not chosen right. Anderson Process can make this selection process simple with expert knowledge, a vast array of pumps and equipment inventory and full engineering and fabrication facilities if your system require a custom manufactured solution. Anderson Process is an authorized provider of a unique range of products that can meet the demand for diverse applications in every industry. These pump types are Rotary Vane, Rotary Lobe, Liquid Ring, Scroll, Dry Screw and Claw pumps with full selection of pressure ranges and pumping speeds to handle the flow rates your vacuum application requires. Tags: booster pump, capture pumps, claw pump, gas pumps, kinetic pumps, liquid ring pump, Positive Displacement Pumps, primary pump, rotary vane pump, secondary pump, transfer pumps, vacuum pump.

The company offers Japanese classes LVSONG Technology Group recently opened a Japanese class, in order to better serve customers in various countries, but also to further improve the quality of the company's products, each department responsible for marketing and technology employees actively participate in the learning. The first advantage of learning Japanese is to improve personal skills and better provide company Products to Japan, such as Vacuum Pump, Chemical Products, Mini Excavator Japanese is not as complex as Russian, French, difficult to learn, in addition to the English we have been learning since childhood, Japanese is a relatively easy to use a language. In addition, because the Chinese characters in Japanese and Chinese characters are the same origin, basically similar, so we have a very innate advantage in learning. It's so easy to learn a language and improve your skills. Why not? The second advantage of learning Japanese is to increase employment options As long as you learn more languages, you will have more choices in the future. Having a Japanese language skill, coupled with their own professional ability, can greatly enhance their employment competitiveness. Having a Japanese skill on your resume is a plus. Many companies have a great demand for bilingual skills of job seekers, Xiaobian has a friend in a special professional learning institution to learn Japanese, when sending resumes, many companies see that he can speak Japanese, are very willing to offer him. Therefore, students with Japanese language skills will increase their options in the job market Three benefits of learning Japanese: broaden your horizons Through studying Japanese, we can not only see a new world, but also see different ideas and different cultures. When people learn more about cultures and ideas, they will find themselves more inclusive and more able to accept things that they have not seen but exist, which can effectively help them broaden their horizons and open the door to a new world. It can be seen that the benefits of learning Japanese are really many! We will continue to learn to strengthen our professional knowledge to create more quality services for customers.

On March 31, 2023, our group subsidiary, NIKKO (Changzhou) International Trade Co., Ltd., had a learning and cooperation exchange with the Vice President of Kunshan MAKKINO Co., Ltd.Established in the year 1937, Makino has a long tradition as a pioneer machine tool builder, consistently seeking uncompromising perfection.With headquarter in Tokyo, Japan, Makino carries out production and sales activities overseas through local subsidiaries, including Makino Inc. in the U.S.,Makino GmbH in Germany, Makino Asia Pte Ltd in Singapore and Makino (China) Co.,Ltd.(Kunshan) with offices in Shanghai, Beijing, Dalian, Dongguan, Chongqing, Ningbo and Tianjing. Our company has close cooperation with Makino, and your company recognizes our machining ability. Our company produce Vertical tank is a kind of steel vessel used to store kinds of liquids or gases, widely used in petroleum, Vacuum Pump, Vacuum Equipment,chemical industry market,food, transportation, metallurgy, and defense.Steel tank is a kind of special vessel for a lots of raw material and products. Many companiescannot work without kinds of vessels, especially for the storage of national strategic material SCOPE Liquid/Gas tank, vapor tank, vapor or liquid collector,water tank.

CCTV (Heritage) program came to our group company to interview and report the enterprise. Chairman Tang Songlin was interviewed On the morning of July 20, 2021, CCTV (Heritage) came to our group to interview and report The purpose of this interview is to select representative enterprises for interviews based on the establishment of Jiangyin vacuum pump industry urban enterprises.The purpose of this interview is to select representative enterprises for interviews based on the establishment of Jiangyin vacuum pump industry urban enterprises, there are many types of Vacuum pumps, such as Pitch Screw Vacuum Pump, Liquid Vacuum Pump, Oil-less Vacuum Pump, etc. Chairman Mr song-lin Tang gave an on-site interview, briefly introduced the development of the group in recent years, and accompanied them to visit the process of vacuum pump manufacturing. It is reported that the program will be broadcast on all public channels such as CCTV and new media. Through the interview, the group copany showed its innovative outlook, attached importance to environmental safety and other aspects, and made contributions to the civilization building of Jiangying city. Chairman Mr Song-lin Tang said: "originality: a stick," innovation: a forge ahead, "quality: a promise, talent, innovation, is the life for our enterprise, quality is the life of the enterprise, enterprise without letter to save" group in particular attention on innovation, quality, good faith construction, and win the customers and the society. Practice has proved that honesty and trustworthiness will obtain rich returns and development. The society calls for honesty, the times reveres honesty, and enterprises need honesty. The group company adheres to the idea of serving customers with integrity and returning to the society, and always remembering that integrity is the mission of the enterprise, learning and implementing the relevant policies of Jiangyin City on the construction of urban civilization, and striving to promote the development of the group company to a new level!

2022 Nikko (Changzhou) International Trade Co., Ltd. was established. Nikko (Changzhou) International Trade Co., Ltd. was successfully registered in Changzhou National High-tech Zone. Nikko Industrial Co., Ltd. was founded in September 1969. Is a professional engaged in hydraulic pneumatic equipment, machine tools, vacuum pump equipment, Chemical Products, Mini Excavator, environmental equipment field of well-known commercial enterprises, has 53 years of history. The company has been committed to the automation of the production site, labor saving, economic and efficient. Based on the technology and experience of hydraulic training, the company provides perfect commodity sales and first-class after-sales service from the design and production of manufacturing machinery and equipment to the later inspection and maintenance. After more than 50 years of development, Riko has accumulated a large number of stable and high-quality customers, such as Makino Machine Tools, SMC, Kawasaki Heavy Industries, Mitsubishi Heavy Industries, KYB, Shimadzu Manufacturing and so on. It has developed into one of the most important enterprises in the field of hydraulics and pneumatics, and has become a supporting supplier of many leading enterprises. Nikko Industrial Co., Ltd. began to expand into the Chinese market in 1991. After long-term business cooperation, we established a joint venture with Changzhou Green Pine International Trade Co., LTD., a subsidiary of Changzhou Green Pine Group, and settled in Changzhou National High-tech Zone. The new company will rely on the excellent industrial base and supporting facilities of the development zone to provide customized hydraulic equipment for Makino machine tools and further explore the Chinese market. 2021 Jiangsu Zhilin Space Equipment Technology Co., Ltd. was established, focusing on the research and development of military-civilian integration high-tech products.

Guangde lvsong Technology Group Co., Ltd. was established, a new lvsong Technology Industrial Park was built, and the resources of the group's subsidiaries were integrated to build the group company; Our group has purchased 150 acres of land in Guangde, Anhui to establish a new factory building. The new factory layout is closer to modernization, and all equipment is updated, bringing more convenience and experience to customers. Vacuum has many classes, like Two Stage Water Ring Vacuum Pump, Hand Vacuum Pump, Liquid Ring Vacuum Pump One of the three blade Roots rotary blade vacuum pump is a positive displacement pump, it uses two rotors, Each rotor has three blades to create a vacuum. The rotor spins in opposite directions, trapping air between the blades and the housing, and then moving it from the inlet to the outlet. This design allows for high pumping rates and low limiting pressures, making it suitable for a wide range of applications including vacuum packaging, vacuum drying and vacuum distillation. There are many types of vacuum pumps, such as: Equal Pitch Dry Screw Vacuum Pump,Oil-less Vacuum Pump,Pitch Screw Vacuum Pump,Liquid Vacuum Pumpand so on.

2019 Establish lvsong International Trade Co., Ltd., integrate the product sales and promotion of its subsidiaries, and establish a perfect marketing system and network; 2019 Established a joint venture with Japan, Siye vacuum Co., Ltd., focusing on the production of high-quality vacuum equipment; 2019 Jiangsu lvsong Energy Saving Technology Co., Ltd. was established to focus on the products of various high-efficiency and energy-saving tire curing equipment and composite curing devices; 2012 Jiangyin elm Vacuum Equipment Co., Ltd. was established, with various vacuum pumps and complete sets of vacuum units as its main products; 2011 Wuxi runjiutian Machinery Co., Ltd. was established, mainly producing sheet metal parts such as electrical control boxes and control cabinets, and gradually developing complete sets of electrical control products; 2010 Establish Jintan Tangzhuang Ecological Park Co., Ltd., focusing on the cultivation, processing and sales of green organic agricultural products, as well as leisure and entertainment; 2009 Jiangyin lvsong Machinery Co., Ltd. was established, specializing in the production of steel structural parts and precision machinery parts; 2005 Jiangyin Tiantian Vessel Manufacturing Co., Ltd. was established, mainly engaged in GB and ASME Pressure Vessel products;