Shanghai Ganjian Machinery Co., Ltd. was established in April 2011. It is a professional manufacturing enterprise specializing in the research and development, production, and sales of oil-free air compressors, with the core brand "Bonaisi" under its umbrella. The company always adheres to the development concept of energy-saving, low-carbon, and intelligent products, deeply cultivates the field of aerodynamic application technology, continuously promotes product iteration and technological innovation, and provides compressed air system solutions for users in various industries.

Since its establishment, the company has steadily promoted product sequence upgrades around the demand for oil-free and clean gas sources: in 2011, it launched the laboratory/medical series oil-free air compressor, in 2013, it launched the oil-free and waterless silent air compressor, in 2015, it launched the box type ultra quiet oil-free air compressor, in 2017, it launched the oil-free vortex air compressor, in 2019, it launched the oil-free and oil-free lubricated screw air compressor, in 2020, it launched the integrated ultra quiet oil-free and waterless air compressor, in 2021, it launched the medical gas compressor, and in 2023, it launched the dry oil-free screw air compressor. Years of technical accumulation and product polishing have formed a matrix of oil-free air compressor products covering multiple scenarios.

In terms of production and manufacturing, the company is equipped with fully automated production assembly lines, and the production management process strictly follows the ISO9001 quality system standard, implementing standardized quality control for every factory product. After years of operational improvement, the company has accumulated rich practical experience in product design, precision manufacturing, after-sales service and other aspects, and has built a complete operational system from research and development production to terminal services.

The company's main business covers laboratory/medical series oil-free air compressors, oil-free and waterless silent air compressors, box type ultra quiet oil-free air compressors, oil-free vortex air compressors, oil-free lubricated screw air compressors, integrated oil-free and waterless air compressors, and dry oil-free screw air compressors. At the same time, it also supplies complete sets of compressed air equipment such as gas storage tanks, dryers, and precision filters. The products can be widely used in medical, scientific research, precision manufacturing, food and pharmaceutical, semiconductor, laboratory, military and other fields that require high air source cleanliness.

In terms of market layout, the company's products not only serve domestic customers, but also have been exported to countries and regions such as Europe, America, and Southeast Asia. Relying on the continuous innovation of technological capabilities and a professional sales service team, the company can provide suitable compressor system air purification solutions for different users' gas usage scenarios, and has accumulated a stable market reputation in the industry for a long time.

In the future, the company will continue to focus on the research and development of oil-free compression technology, optimize products around low-carbon energy conservation and clean gas sources, and respond to the diversified demand for clean gas sources in the market with stable product quality and a complete service system.