Corrosion-resistant diaphragm pumps utilize corrosion-resistant materials and a diaphragm structure to achieve leak-free fluid transfer. They are suitable for the pumping and vacuum extraction of strong acids, strong bases, and organic solvents in fields such as chemical manufacturing, pharmaceuticals, and laboratories, thereby ensuring the safety of both personnel and equipment.
1.Corrosion-Resistant：Features a PTFE pump head, corrosion-resistant gland, PTFE-coated composite diaphragm, and PTFE-coated pump body; offers complete resistance to chemical gas corrosion.
2.Dry Operation：Oil-free operation ensures no oil fume contamination; clean, eco-friendly, and low-maintenance.
3.Low Noise：Characterized by low vibration and low noise levels.
4.Compact Design：Small in size and lightweight, occupying minimal laboratory space.
5.Low-Vacuum Startup：Capable of starting up under low-vacuum conditions.
6.Upgradeable：Offers excellent expandability and can be subsequently upgraded to a variable-frequency vacuum pump.
7. The vacuum pump's rotational speed can be manually adjusted, enabling precise control over its pumping rate; this facilitates convenient coarse adjustment whenever the system's vacuum level needs to be regulated.
8.The vacuum pump is lightweight, making it easy for users to move, and features a compact design that occupies minimal desktop space in the laboratory.
9.All components in contact with the gas stream are constructed from corrosion-resistant materials, ensuring robust resistance against corrosive acidic and alkaline gases.
10.It is compatible for use with a wide range of laboratory equipment, including rotary evaporators, vacuum drying ovens, Schlenk lines, and vacuum filtration setups.
Model | LJM480 | LJM480-S | LJM480-VC |
Pumping Speed (at 1 atm) | 38L/min | 40L/min | ≥40L/min |
Ultimate Vacuum | ≤8mbar（800pa） | ≤8mbar（800pa） | ≤8mbar |
Variable Speed | No | Adjustable speed control for regulating pumping rate | Yes |
Inlet/Outlet Connections | 10mm Hose Barb Fitting | 10mm barbed fitting | 10mm barbed fitting |
Power Supply | 220V/50Hz | 220V/50Hz | 220V/50Hz |
Noise Level (at Ultimate Vacuum) | ≤50dB | ≤50dB | ≤50dB |
Power Consumption | 200W | 200W | ≤220W |
Weight | 9.2kg | 9.2kg | 10.5kg |
Dimensions (W × D × H) | 148mm*266mm*258mm | 148mm*266mm*258mm | 148mm*266mm*305mm |
Features for LJM480-VC：
1. All components of the vacuum pump that come into contact with gas are constructed from corrosion-resistant materials; the pump head is made of solid PTFE, the check valves are made of PEEK, and the diaphragm features a PTFE coating, enabling the pump to withstand corrosive gases.
2.The pressure sensor features a measurement range of 1–1100 mbar, and the system digitally displays the current vacuum level.
3.The system offers two control modes: Speed Control and Pressure Control. In Pressure Control mode, the target vacuum level can be set via key inputs; the system then regulates the pump speed to maintain the desired vacuum level. This effectively reduces energy consumption and noise, while simultaneously extending the system's service life and maintenance intervals. The allowable deviation range for the vacuum level can be configured between 1 and 5 mbar. In Speed Control mode, the pump's pumping rate is controlled by adjusting its rotational speed.
4.The system features a "Hold" function that allows users to lock the current pressure value at any time, thereby maintaining the system at that specific pressure level and facilitating precise control over the vacuum environment.
5.Prior to operation, an initial target pressure can be set, enabling the system to execute precise pressure control based on the specified target. Furthermore, the system can be switched to the "Hold" function at any time.
6.The diaphragm features a "sandwich" layered structure, ensuring excellent durability and longevity even during prolonged periods of continuous operation. Additionally, because the pump speed is dynamically adjusted based on pressure requirements, the service life of the diaphragm is significantly extended.
7.The system operates dry (oil-free), preventing back-suction and eliminating oil fumes. It features low noise levels and minimal vibration. The system is designed to ensure reliable startup even under low-vacuum conditions.
We have a standard production workshop and a complete production team. They always produce a serious and responsible attitude to produce each product. Our R&D team is made up of multi-aspects professional engineers such as design engineer,technology specialist ,qualified specialist and process control manager, etc. Our qualified specialists strictly realize the process comprehensive supervision based on our quality process control system, which contains products design, research and development, test, production, quality inspection and packaging.
Our product packaging has been proven over the long term and we usually have plywood boxes or cartons with trays. We will arrange the appropriate packaging according to the weight and size of the goods. Of course, you can also choose the packaging form.
Our laboratory instruments and equipment are used in many scientific laboratories, scientific research institutions, universities, hospitals, centers for disease control and other institutions, and are combined with many well-known biopharmaceuticals, new energy, electronics companies, food processing, environmental protection, etc. Enterprise cooperation, our stable and reliable products are exported to more than 120 countries around the world, and have been highly recognized by them, believe LABOAO, we grow together!
