Products and Services
Cryogenic Air Separation Unit
ASU Equipment
As a professional manufacturer of cryogenic air separation plants, we are committed to providing our clients with core industrial gas solutions. Leveraging deep technical expertise and continuous process innovation, our designed and manufactured cryogenic air separation equipment is renowned for its exceptional energy efficiency, high reliability, and superior product purity.
Our plants utilize advanced cryogenic distillation technology to efficiently separate air and stably produce high-purity oxygen, nitrogen, argon, and rare gases, meeting the stringent demands of various industries such as steel, chemical, electronics, healthcare, and new energy. From compact to ultra-large scale installations, we offer customized designs to precisely match clients' gas volume and process requirements.
We specialize in designing and manufacturing air separation units with a capacity range of 50~60,000 Nm³/h, high-purity nitrogen plants of 50~40,000 Nm³/h, fully liquid air separation units of 100~1000 TPD, as well as oxygen and nitrogen liquefaction systems.
Choose us as your trusted cryogenic air separation partner, and let's together unlock the future of efficient gas separation.
Our plants utilize advanced cryogenic distillation technology to efficiently separate air and stably produce high-purity oxygen, nitrogen, argon, and rare gases, meeting the stringent demands of various industries such as steel, chemical, electronics, healthcare, and new energy. From compact to ultra-large scale installations, we offer customized designs to precisely match clients' gas volume and process requirements.
We specialize in designing and manufacturing air separation units with a capacity range of 50~60,000 Nm³/h, high-purity nitrogen plants of 50~40,000 Nm³/h, fully liquid air separation units of 100~1000 TPD, as well as oxygen and nitrogen liquefaction systems.
Choose us as your trusted cryogenic air separation partner, and let's together unlock the future of efficient gas separation.
Jiangxi Shenghua Project 18000 x 2 Sets
This nitrogen generation unit employs a process flow featuring ambient-temperature molecular sieve adsorption, along with main and auxiliary columns utilizing structured packing. The specialized dual-column design, with the auxiliary column positioned atop the main column, is engineered for high efficiency and energy savings.
Mexico 8000 Project
This ASU adopts a process that combines liquid nitrogen reflux, ambient-temperature molecular sieve adsorption, a sieve tray column in the lower column, and structured packing in the upper column and crude argon column. It is also equipped with an external liquefaction unit featuring a nitrogen cycle and high-and-low-temperature booster turbo-expanders. The system offers flexible operation, allowing the external liquefaction unit to be activated based on market conditions.
Shipment of the Turkey 18000 Project
This ASU utilizes a process flow comprising ambient-temperature molecular sieve adsorption, air compression, parallel dual expanders, and structured packing in the lower column, upper column, crude argon column, and refined argon column.
Xiantao Ronbay 21000 Project
This ASU employs a process featuring ambient-temperature molecular sieve adsorption, structured packing in the lower column, upper column, and argon enrichment column, along with a self-pressurizing oxygen system.
Algeria 100TPD Project
Project Background:
In 2020, amid global pandemic challenges, Hangzhou Chuankong successfully delivered a 100-ton/day argon-producing ASU to the client in Algeria. During the most critical phase of the pandemic, the company proactively responded to the needs of the customer and local authorities, overcoming numerous difficulties to dispatch a team of professional engineers to Algeria in 2021. They provided on-site installation guidance and commissioning services.
Leveraging their expertise and perseverance, the team successfully commissioned the unit and ensured its smooth launch. Notably, throughout the pandemic, the ASU operated stably and supplied a significant volume of life-sustaining oxygen—a critical resource—to local medical institutions, strongly supporting the region’s pandemic response efforts.
Hangzhou Chuankong fulfilled its commitments to the customer and demonstrated corporate social responsibility through concrete actions.
Indonesia Tsingshan Iron and Steel ASU Project
Since 2015, Hangzhou Chuankong has independently designed and manufactured multiple ASUs for the Tsingshan Steel Indonesia project, including:
• 1 set of KDONAr-12500/12500/450Y ASU
• 1 set of KDONAr-25000/35000/860Y ASU
• 5 sets of KDONAr-30000/50000/1100 ASUs
With years of accumulated experience in design and manufacturing, Hangzhou Chuankong operates a first-class integrated ASU assembly workshop in China, featuring an in-factory water transport terminal connected to the Beijing-Hangzhou Grand Canal. The company’s projects span multiple countries and regions worldwide. To date, the facility has successfully completed the fabrication of 90,000 Nm³/h oxygen plant and skid-mounted cold boxes for 60,000 Nm³/h oxygen plant.
Xinjiang GCL 14000 Nitrogen Generation and ASU Project
KDN-14000/500Y
This ASU adopts a nitrogen production process utilizing molecular sieve adsorption purification, a booster turbo-expander for refrigeration, and a single-column/single-main-condenser return flow technology.
Features:
1. Waste nitrogen vaporized from the condenser-evaporator, or extracted from the column, is returned to the main heat exchanger. After reheating to a specific temperature, it enters the expander for refrigeration.
2. The nitrogen product is directed to the booster end of the expander after exiting the cold box, increasing pressure and reducing energy consumption.
Zhonglong Gas 669 TPD ASU Project
This ASU employs a process featuring ambient-temperature molecular sieve adsorption, air recycling, high-and-low-pressure expanders, and structured packing in the lower column, upper column, crude argon column, pure argon column, and high-purity oxygen column.
Turkey 60,000 Air Separation Project
This ASU employs a process featuring ambient-temperature molecular sieve adsorption, structured packing in the lower column, upper column, and argon enrichment column, and oxygen pressurization via a process liquid oxygen pump (internal compression).
• Dimensions: 67,100 × 12,500 × 7,500 mm
• Weight: 690,000 kg
Haidong Hongshi 30,000 Nitrogen Generation and ASU Project
This ASU is a KDN-30000(250Y) compressed air nitrogen generation package supplied for Phase I of the Silicon-Based New Materials Project with an annual production of 100,000 tons of polysilicon for Haidong Hongshi Semi-conductor Co., Ltd.
Collection of ASU Equipment