Chengdu Dongfang Instruments (Dongyi Technology) Co., Ltd. is located at No. 199, Section 2, Chongsuan Avenue, Economic Development Zone, Chongzhou City, Chengdu. The company enjoys a beautiful environment and convenient transportation. It was established in Chengdu in 1993 under the name “Chengdu Dongfang Instruments Factory,” and its predecessor was the state-owned Chengdu Semiconductor Materials Factory.

The company began manufacturing roll-to-roll vacuum coating equipment in 2013 and now possesses 13 years of experience in the technology, design, and manufacturing of such equipment. The company’s main products include: automatic nitrogen leak detectors, nitrogen filling and recovery systems, vacuum roll-to-roll coating equipment and dedicated power supplies, vacuum drying and degreasing systems, refrigerant charging systems, vacuum purification and oil injection systems, and nitrogen mass spectrometer leak detectors. These products are widely used in industries such as refrigeration, automotive, packaging, power, energy, capacitors and batteries, foundry, nuclear, and defense.

The company's main products include automatic helium leak detection devices, helium recovery devices, vacuum drying and degreasing devices, refrigerant charging devices, vacuum purification oil injection devices, and special power supplies. They are widely used in industries such as refrigeration, automotive, electric power, energy, casting, nuclear industry, and military.

Our company is one of the earliest enterprises in China to independently develop quality flow meter filling machines, with technology at the leading level in the country. Our customers are spread across various refrigeration enterprises in the country, and we have a high reputation in the industry.

In order to assist refrigeration enterprises in actively replacing HCFCs, our company was also one of the first to develop R600a and R290 explosion-proof filling machines in the country. We can provide a complete set of safety solutions and implementation from pressurization to filling. We are the main drafter of the "Safety Technical Specification for the Use of Isobutane Refrigerants in Household and Similar Refrigerating Appliances" QB/T2912-2007, a light industry standard. This type of filling machine has obtained the national explosion-proof qualification certificate.

The vacuum purification oil injection machine independently developed and produced by our company is applied in major compressor manufacturers and air conditioning manufacturers in the country. The oil purification effect, purification speed, and oil injection accuracy are comparable to foreign equipment.

The special power supply developed by our company is used in vacuum equipment and charging equipment, such as coating machines, high vacuum exhaust equipment, and electric vehicle charging stations, with hundreds of power supplies already applied in many large enterprises.

Our company also produces helium detection equipment specifically for military, nuclear energy, and other special units with unique needs. Our helium leak detection equipment has also obtained a national invention certificate.

The company's products are first-class, with excellent performance, and are well received by users. Its products have spread across the national air conditioning, refrigerator, freezer, commercial air conditioning, central air conditioning, and automotive air conditioning manufacturing enterprises.

The company always adheres to scientific management, creates first-class quality with advanced technology, prioritizes quality, and seeks continuous satisfaction with high-quality service. We continue to make unremitting efforts to occupy and expand the market with high-quality and cost-effective first-class products, develop new products with high-tech, and promote the depth and breadth of product development to meet market demand.

The company will be even more brilliant in the future.