Company Proflie

Hangzhou Chuankong General Equipment Co.,Ltd. is a wholly owned subsidiary of Sichuan Air Separation Plant Group Company-the second largest gas equipment producer in China.

Fossil and mineral resources vary with the situations in different countries and regions. But air resources are equally sufficient everywhere. In today’s world of scientific progress, the air resource plays key roles in industrial production and daily life. Air separation products like oxygen, nitrogen,and argon are widely applied in steel and iron works, shipbuilding plant, smelting plant, manufacturing plant, gas company, medical business etc.

In the gas equipment field, we are proficient in both design and manufacture, enjoying a good reputation worldwide. By our consistent efforts, we turned the invisible air into visible brilliance. With 40 years of experience, we can provide customers with a complete range of products and the most professional services. Taking advantage of the group company structure, we have an in-depth and comprehensive understanding of market. Customers can get all they need at one-stop purchase.

We are proud to have an experienced and passionate elite team. We have always been a pioneer in the industry, to keep competitive in the world market. Our team will be constantly committed to exploring the gas field, providing customers with a variety of tailor-made solutions for air resource exploitation.

Company Culture

In the past 40 years of growth, we have developed our unique people-oriented company culture. Our greatest wealth is our staff, and the elite team is the key to our success. The rights, health, safety, and welfare of all employees are well protected and improved by the company.

We comply with moral standards and conduct all the business in a sustainable manner. We contribute to environment protection not only by reducing our own carbon emission, but also by helping customers to minimize or even eliminate harmful emissions with our CO2 recovery plant.

We are also an active participator in public welfare activities. We have helped many children who cannot afford to go to school, built a public square for local citizens, and invested in rural road construction. By doing all these, we contribute our profit to where it comes from-the society.

All for customers, all for development.

As a leading gas equipment supplier in China, our goal is to take the lead in the field worldwide.

  • workshop

  • workshop

  • workshop

  • bending

  • welding

  • cutting


Our History

Sichuan Air Separation Plant Factory was established as a specialized air separation unit manufacturer in Zigong, Sichuan, China.
The factory moved to Jianyang, Sichuan, China.
The factory made the first air separation plant with a capacity of 1000Nm3/h.
By forming its own sales team, the factory was no longer just a production-only factory, but a supplier with services.
The 400m3 cryogenic storage tank was successfully made.
The factory obtained pressure vessel design and manufacture certificate (A Class).
The factory got ASME certificate and U, U2 stamp issued by the National Board of Boiler and Pressure Vessel.
Hangzhou Chuankong General Equipment Co., Ltd was established.
Sichuan Air Separation Plant (Group) Co., Ltd (SASPG) was named, including Sichuan Air Separation Plant Factory, Jianyang Heat Exchange Factory, Sichuan Hemispherical Vessel Head Manufacturing Co., Ltd., and Sichuan Jianyang Chahu Air Separation Technology Development Center.
SASPG cooperated with Air Liquide for the development of 6000Nm3/h air separation plant.
SASPG cooperated with Praxair, and this period witnessed the quick technical development of SASPG.
SASPG transformed from a state-owned company to a joint stock company.
The 28000Nm3/h air separation unit was developed with out patent technology.
Zhejiang Dachuan Air Separation Plant Co.,Ltd. was established in Huzhou, Zhejiang, fully held by SASPG.
Till 2013
Now SASPG has 40 subsidiary companies and holding companies. We have produced more than 2000 sets of air separation plants, more than 8000 pieces of cryogenic storage tanks, more than 100 sets of CO2 generators, etc. They were delivered to customers in more than 50 countries.

Company Tour

Welcome to Hangzhou Chuankong General Equipment Co.,ltd. please follow us
for a visit to our office buildings and factories.


We have 15,000 square meters of office buildings, including conference rooms, the marketing office, technical office, etc. We also have clean canteen, dormitory and staff room for employees.

Floor guide

Technical office

Conference room


Project discussion



We have 17 pieces of 5T-160T cranes and 25 pieces of roller carriers. The maximum lifting size is 35×4.5m, and the maximum lifting weight is 2×160T. Large workpieces can be easily moved from one side to the other side of the workshop in a fast speed.

160T crane

LNG tank at delivery


CO2 mobile tank at delivery

Testing workshop and equipment

We implement a testing standard that is higher than the national one, to ensure that every product has a long service life. We have hydrogen mass spectrometer leak detector, impact testing machine, tensile testing machine, metallographic analyzer, nondestructive testing equipment, etc. We also have a complete inspection and testing plan, and all the inspection records and test reports are complete and traceable.

X-ray irradiation chamber 1

X-ray irradiation chamber 2

Pressure testing

Chemistry lab


Temperature regulator

Impact testing machine

Impact testing notch broacher

High-speed automatic furnace

Intelligent carbon and sulfur analyzer


Our new factory is located at the band of the Beijing-Hangzhou Grand Canal. We have our own private basin wharf in a size of 46m×16m×8m (l×w×h). When the production is completed, the finished equipment can be lifted aboard directly from the workshop and transported by river to Shanghai or other ports (150km from Shanghai port). The river transport can go beyond restrictions on large pressure vessels of land transport. Even the 600m3 tank can be easily and quickly delivered to the port.

Internal transport wharf 1

Internal transport wharf 2

No.2 factory production

Loading within the factory

Raw material and spare part workshop

a. suppliers: TISCO, Baosteel,Huzhou Jiuli, Zhejiang Zhongda, Zhangjiagang Huafu, Xinyang Sanyuan, Hangyang, Wuxi KOSO.
b. quality control and tracking procedures: raw material sourcing, supplier assessment, data review, chemical analysis, and mechanical test. Every step is strictly conducted in line with company standards.
c. material testing and identification (procedures, methods, and equipment): quality manual; procedure document; standards such as codes of pressure vessel, GB150, GB18443, GB35311 and ASME; a variety of models of physical-chemical devices.

Raw material workshop-stainless steel plates

Raw material workshop-steel pipes

Spare part 1

Spare part 2


a. cutting machine: we have the world-leading digital underwater plasma cutting machine, which features high efficiency and small deviation.

b. bending machine: we have 10 high precision bending machines with a deviation less than 50mm.
c. planer: 12 meters at one stroke.
d. welding machine: we have 12 automatic welding machines, 10 AC welding machines, 1 all-position welding robot. We are also proud to have 35 senior welders with years of experience.

Non-destructive plate grabbing device
(effectively protects raw materials
from damage at the installation)

CNC plasma cutting machine


2×160T crane

Bending machine that is capable
of bending 50mm thick plates

Double-sided vertical welding

25×5m overall welding seam RT inspection room

Automatic TIG welding equipment

Automatic plasma welding

Automatic pipe bender

Pressure test room

Air circulation blast cleaning room

Tank pipe polishing

Perlite filling

Annealing furnace

Paint room

Health and safety

Safety inspection coverage: productionsite, personal protective equipment, surroundings, emergency ambulance, fire safe passage, etc.

Safety sign 1

Safety sign 2

Safety method 1

Safety method 2

Our Certificates

ISO 9001:2008 Certificate
Manufacture License
of Special Equipment
ASME Certificate
Installation, Alteration, Repair
and Maintenance License of
Special Equipment
The National Board of Boiler
and Pressure Vessel Inspectors
Certification of Authorization
Certificate of
National Key Project
Certificate of
Zhejiang Name Brand
Zhejiang Famous Trademark

Tel.: +86-22094551

E-mail: Contact person: Cherry Shi

Add.: No.3 Eastwest Avenue, Liansheng Village, Nanyuan Street, Yuhang District, Hangzhou, Zhejiang, China

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