There are many kinds of dry cabinet currently in the market ,their dehumidifying principle is different, price is different, of course quality is different, so how can we distinguish them out? Today we will help you in this field: 1.Traditional dehumidification The basic dehumidification principle of dry cabinet adopts “zeolites” or “molecular sieves” as the dry unit of moisture absorption combined with metal or humidity sensors. Due to the saturation of hygroscopic materials, domestic and foreign brands that can be seen in the market need to have a regeneration cycle to “activate” its hygroscopic function. In general, 3 hours is the “moisture absorption” cycle, and 1 hour is the “regeneration” cycle. It runs again and again. Due to the need to dry and regenerate and stop dehumidification after saturation, the humidity in the cabinet will rise and fluctuate in a specific temperature and humidity environment. 2.Vacuum dehumidification Vacuum the drying cabinet to achieve the purpose of removing moisture. It is composed of cabinet and vacuum pump. Due to the vacuum status in the cabinet, the water content in the internal air is very low. However, the requirements for atmospheric pressure and sealing of the cabinet and door are very high, and compared with the external size of the cabinet, the internal effective use space is smaller. And can only be realized in a small cabinet, the use of vacuum, the removal and release of articles must be reduced, it is not convenient to use, and the continuous noise emitted by the vacuum pump is disturbing, and the purchase cost is expensive. At present, this method is not widely used. 3.Nitrogen dehumidification Nitrogen drying is widely used in the production area in microelectronics industry, and it is used more in ultra-low humidity and anti-oxidation purpose. Its drying is achieved by filling the sealed cabinet with nitrogen to replace oxygen-containing air. The main problem with the use of nitrogen cabinets is that the operating cost is too high.

Nitrogen cabinet is a optimal choice for the microelectronics, semiconductor for humidity proof and anti-oxidation purpose. EJER has put much efforts on the R&D of dry cabinets, as you know, our advantage is to handle temperature and humidity. Our engineers tested and researched dry cabinet and nitrogen cabinet in more than 10 years ago. All of our manufacturing process strictly follow ISO9001 standard, we supply to international customers for over 10 years ,if you are still looking for a reliable dry cabinet manufacturer to protect your MSD from moisture related damage ,come to visit https://www.dry-cabinet.cn,we are ready.

EJER is a professional team engaged in humidity control research, the quality of all kinds of products produced is stable and reliable, with our unique technologies, our dry cabinet is used to store humidity sensitive materials, which has successfully solved the problems caused by environmental humidity. At present, products have been widely used in electronics, military industry, research institutions, government agencies, chemical laboratories and other industries. The product has passed a number of certifi cations, such as CE; ROHS; C-Tick, EMC, WEEE and etc.

As humidity is found to be one of the key reasons for rejected products, many manufacturers are taking measures to control the humidity to increase their production efficiency and save the cost. In the industries of semi-conductor and electronics, the key section in which the rejected products are most probably to be made is that during the heating process of SMT, the IC(e.g., PBGA, BGA, or TQFD) is likely to crack and thus cause non-effective welding because of the humidity. EJER auto dry cabinet is the best solution to avoid the cracking and noneffective welding by dehumidifying the surface of your components.

EJER adopts molecular sieve to dry air, the whole system is controlled by microcomputer, when humidity is high, It will start to absorb moisture, when the humidity reach the pre-set value, it will stop absorbing, and then discharge the water to outside the cabinet by heating, again and again by automatic control. The most effective and environment-friendly moisture-absorbing desiccant is molecular sieve, molecular sieve is the microporous crystal material synthesized by silicon and aluminum oxide. In order to keep the crystal net discharge to be zero, atoms with cations are located in the crystal structure. and the cation used in these synthetic crystals is usually sodium. At present, there are two kinds of molecular sieves widely used in the dry box industry: Class A and Class X. Molecular sieves are synthesized, shaped and activated under strictly controlled production processes. The whole controlled synthesis process can ensure consistency of the three-dimensional pore size. 3A molecular sieve pore size is 3 angstroms, 4A molecular sieve pore size is 4 angstroms; 13X molecular sieve pore size is 8.5 angstroms. The working principle of molecular sieve: Molecular sieves adsorb molecules onto the crystal surface by physical attraction force. Since 95% surface area of the molecular sieve is within aperture, it needs to screen the adjacent molecules by different size. Only small size molecules can enter into the inner adsorption surface of the molecular sieve through the crystal aperture. This selective adsorption phenomenon is called molecular sieve effect. The molecular sieve adsorption capacity and charge density (polarity) are further related to the adsorbed molecules. The molecular sieves can further distinguish which of the mixed molecules can be adsorbed and determine to what extent the charge density can allow the molecules to be adsorbed onto the crystal. Water molecules are particularly small (2.6 angstroms), that belong to highly polar molecules (very strong positive and negative electron density), and are easily adsorbed by molecular sieves, even under very low moisture condition ,once the water molecules are adsorbed, they will be firmly fixed on the crystal. The environment-friendly moisture absorption device is equipped with molecular sieve. When it’s absorbing, the memory alloy controller is in tensile state, and the spring is in contractive state, which just make the valve contact the outer baffle, this insulates the outside air from inside dry box air to achieve dehumidification purpose; and after molecular sieve absorbed moisture inside dry box and become saturated, the program will automatically control the memory alloy device to shrink it so that the valve reaches the inner baffle position. Meanwhile, due to the shrinkage of the memory alloy, the spring is stretched and the valve is pulled out of the outer baffle, so that the moisture in molecular sieve will be discharged into the outside. after the dehumidifying process finished, the program automatically control and reset the memory alloy and spring, to restart absorbing status….

Anaerobic oven is mainly applied in aerospace, petrochemical, military, ship, electronics, communications and other scientific research and production units, it is used to do BPO/PI/BCB curing, and IC (wafer, CMOS, Bumping, TSV, fingerprint identification), FPD, high-precision electronic components, electronic ceramic materials dust-free drying, electronic products, materials, components and other high-temperature clean environment drying and aging test. Anaerobic Oven Features: 1.The oven adopts ceramic fiber insulation material, heating up fast, energy saving characteristic 2.Excellent air supply and exhaust system to ensure uniform temperature in the working area. 3.Air suction glass fiber filter to ensure cleanliness requirements. Aerobic oven is filled with inert gas (N2, CO2) to remove the oxygen in the oven, so as to prevent the oxidation of high temperature during baking, which has special requirements for the structure of anaerobic oven, especially sealing, control system. First: Structure Difference The anaerobic oven is fully welded and sealed, so that the inert gas will not leak, while ensuring the internal anaerobic environment, the ordinary oven is also full welding, but do not have sealing treatment. Second: Control System Difference Anaerobic oven has nitrogen control system and delay heating function, that is, before heating, it will automatically filled in nitrogen so as to ensure that the working area has formed anaerobic environment before heating, to avoid high temperature oxidation. Of course, some other control techniques, including dual-flow nitrogen-filled energy control, are also adopted by many users, that is, double-flow nitrogen control and delay heating, when the oven filled with nitrogen, automatically switch to small flow vaguely save nitrogen, and ordinary oven does not have these functions.