Hangzhou Scala Filtration Technology Co., Ltd. was founded in 2013, is a professional manufacturer of compressed air treatment equipment and liquid nitrogen generators.As a technical driven company,  based on years of experiences,Hangzhou Scala Filtration developed a full range of high performance refrigerated dryer, adsorption dryers,compressed air filter,air water separator. Most of them are exported to global market to meet different working conditions.  After years of research, Hangzhou Scala also offers a wide range of liquid nitrogen generator based on advanced pluse-tube cryo-cooler and mixed-refrigerant compressor cooling.  Liquid nitrogen flow capacity ranging from 10 liters/day up to 1000 liters/day.These products are used in a wide range of laboratory instruments, including NMR NMR spectroscopy, cryo-EM cryo-electron microscopy, SEM scanning electron microscopy, X-ray diffractometer, MBE molecular beam epitaxy equipment, superconductors, observatories, aerospace, cryogenic storage, hospital sample banks and other laboratories requiring liquid nitrogen. Most of them are exported to global market to meet different working conditions.