1. Hangzhou Dongbei Mechanical And Electrical Equipment Co., Ltd.
Hangzhou Dongbei Mechanical And Electrical Equipment Co., Ltd. has the website db-cylinder.com. It focuses on R&D, production and sales of cryogenic insulated gas cylinder inspection equipment. Its main products include static evaporation rate testers, helium mass spectrometer leak detectors, vacuum pumping systems and automated inspection lines. All equipment meets standards like GB/T 18443 and ISO. It can accurately test insulation performance and airtightness of LNG and liquid nitrogen cylinders. The company has professional technical teams. It offers on-site installation and after-sales training. Its products are sold to over 20 countries globally.
2. Beijing Huatuo Green Energy
It is a leading supplier of intelligent cryogenic cylinder inspection equipment. Its key products are wireless static evaporation rate testers, smart inspection management platforms and vacuum drying systems. The equipment uses IoT technology for real-time data monitoring. It supports full-process testing from check to performance verification. It has over 200 patents and software copyrights. It serves 55% of domestic special inspection institutes. It helps build many provincial first cryogenic cylinder inspection stations.
3. Shanghai Unity Chy
It specializes in high-precision cryogenic bottle testing equipment. Its main product is the high-precision static evaporator (model UT-45). The tester has a measuring range of 0-10 L/min and accuracy of ±1%. It is computer-controlled and has 2-4 workstations. It fits testing of LPG, oxygen and helium cylinders. It provides 13-month warranty and lifelong free technical support. It has ISO certification. It delivers one-stop services to clients in over 20 countries.
4. Hefei Wanwei Vacuum
It is a professional supplier of leak detection equipment for cryogenic cylinders. Its core product is the helium mass spectrometer leak detector. The detector can find tiny leaks in insulated cylinders. It ensures the airtightness meets safety requirements. It also provides high-purity helium gas for testing. The equipment is easy to operate. It is widely used in gas companies and cylinder maintenance factories. It offers fast delivery and online technical support.
5. Tianjin Oerlikon Leybold
It is a well-known supplier of vacuum and inspection equipment. Its main products for cryogenic cylinders include vacuum pumps, leak detectors and vacuum measurement instruments. The equipment uses advanced vacuum technology. It ensures stable performance in low-temperature environments. It has four production bases worldwide, including one in Tianjin. It serves aerospace and petrochemical industries. It provides lifelong technical support and maintenance services.
