Suzhou since gas system co.,ltd

A few words about us
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Suzhou since gas system co.,ltd




SUZHOU SINCE GAS SYSTME CO.,LTD  is a  high-tech joint-stock enterprises , which is located in Tai Hu lake of beautiful Yangtze river delta-Suzhou high and new technology develop zone, It covers an area of about 20,000 square meters. It has 4000 square meters of modern industrial plant and 1200 square meters of commercial intelligent office. 

Our company devoting variety kinds of gas equipment creating,developing, designing, manufacturing, sale&service, providing professional industrial gas and equipped product.

Our company always insist on People foremost, realistic and innovative,customer first Quality supreme Idea, we never stop exploring, pursuing new and advanced technology,scientific achievements from home and abroad.
We provide our customers more valuable, technology and perfect product via Innovative leading technology, stable and reliable quality, fast professional service, strictly &high efficiency management guarantee.


Our workshop:




Our Honor:



●Becoming a member of OptimumNano Innovation Union

●Providing nitrogen generators for world largest Ore Carrier Vessels (400,000 DWT)



●Obtained certifications of ISO9001: 2008 quality management system, Lloyd’s Register of Shipping (UK LR), Bureau Veritas( France BV),American Bureau of Shipping(ABS)and CONFORMITE EUROPEENNE (CE)

●Started exporting our industrial gas solution to international users.



●Approved to be qualified Haier Group supplier, providing PSA nitrogen generator and Membrane nitrogen generator.



●Obtained over 10 Invention Patents on Hydrogen Recovery System Plants, positioning ourself as leader in the industry

●Installed several bell furnace hydrogen recovery system production lines for cold rolled strip manufacturers, effectively reduce the energy cost.

●Provided nitrogen generator for LNG vessel, becoming the first LNG nitrogen generator supplier in this area.



●Installed 2800Nm3/h ship nitrogen generator for a domestic shipping company, becoming the largest ship nitrogen generator manufacturer in China.



●Obtain pressure pipeline special equipment manufacturing license

●Provided the largest nitrogen purifier for SINOPEC, set a record of maximum carbon type nitrogen purifier in China.



●Approved to be Qualified Supplier by China Aerospace Science and Technology Group

●Obtained China Classification Society (CCS) certification

●Cooperated with CNOOC(China National Offshore Oil Corporation) first ship nitrogen generator, which was highly appraised.



●Officially began to be IUR Base for Sichuan University and Material Institute of Central South University of Forestry and Technology

●Approved as“High Technology Enterprise of Jiangsu Province”



●Approved as nominated supplier for CBPMC(China Banknote Printing and Minting Corporation)


September 2004

●Suzhou Since Gas System Co.,Ltd was officially founded

●Full set of nitrogen/ hydrogen gas station successfully installed at Nanjing Mint, which were highly appraised;


Company Details

Main Market

North America

South America

Western Europe

Eastern Europe

Eastern Asia

Southeast Asia

Middle East




Business Type




Brands : SINCE-GAS

No. of Employees : 100~150

Annual Sales : 20,000,000-40,000,000

Year Established : 2004

Export p.c : 80% - 90%

Company History


SINCE-GAS devoted to gas field development,who established in 2004, we manufacture PSA nitrogen generators,Membrane nitrogen generators,PSA oxygen generators,PSA hydrogen generator,with other 

gas recoverinig,purifier device,


With 1000 sets output,we delivered to our machines to many countries,area, like Signapore,Indonesia, 

Thailand,India,Malaysia,Myanmar,Vietnam,South Korea,New Zealand,Russia, Iran,Macedonia,German,USA 



Quality&service are the soul of SINCE,we always striving &focus on innovation !  


Provided valuable service&products for gas field,push Industrial civilization progress !  



Company Service

Quality Guarantee :


I  Quality guarantee

The whole set of system guarantee period 18 months since export from factory or 12 months after tested,

the two conditions based on the prior date,during this period,supplier will bear all the fee which because 

of quality problem damaged maintenance or change.


II Quality guarantee system carry out standard(design,manufacture,test)

Strictly according to ISO9001:2000 quality management system standard to manage the whole process 

of equipment,details of technical process,measures as following: 


(1) Make sure customer requirements,provided perfect,reasonable technical solution

communicating with customer in details&thoroughgoing,make sure customer requirements for equipment 

clearly,the technical process for N2 situation,customer currently site and public situation etc.Then according 

to our long period industry  working experience,then put our suggestion for customer,under mutual fully 

communication,reach an agreement situation,put perfect,reasonable technical solution. 


(2) Contract review 


Before sign the contact with customer,via salesman organize technology,quality purchase,production or 

after-sale etc related department reviewing contact,make sure can completely understand customer 

requirements,satisfied with contact 


(3) Quality management control process


Control for design 


Product design is the key link to make up product quality,our company through design,develop to design 

confirming the whole process establishing keep control and testing document procedure,then based on 

long time testing,accumulating data design,guarantee satisfied with all the requirements


(4) Components and parts purchase,outsourcing manufactured parts manufacturing 


All the components&parts of equipment purchasing all according to our company purchase supplying 

department “Qualified supplier list”listed,based on fulfill all the contact requirements,testing the goods 

by QC.  


Outsourcing manufactured parts manufacturing also according to our company purchasing 

department“Qualified outsourcing manufactured parts supplier list”listed,based on fulfill contact,Via 

QC monitoring the whole process and test it at least.


(5) Production process control 


(5.1) Nitrogen generator technical process as follows:


Pressure vessels manufacturing-Pipes welding-rust cleaning(surface treating)-semi-product 

assembling-product assembling-painting-testing-testing before factory export 


5.2 Operators 

Operators must strictly according to technical drawings manufacturing,technical process standard and rule 

operating,and according to (process test and inspect control procedure)carry out inspecting,quality 

department then testing and inspecting,then recording,qualified product via inspector sign or stamped then 

can turn to next procedure. 


5.3 Manufacture process drawing,technical standard etc document and data all in state of control,per 

workshop strictly according to technical process standard organize production. 


After-sale service :


1.Guarantee promise after sale


The whole set of system guarantee period 18 months since export from factory or 12 months after tested

the two conditions based on the prior date,during this period,supplier will bear all the fee which because 

of quality problem damaged maintenance or change.

2. Customer management system establish    

(1)Supplier establish customer files,convenient for helping buyers manage equipment(like different technical 

process equipment correctly working instructions)

(2)Convenient for regularly notice buyer change some easily-broken parts,check equipment¬ification

(like via fax,email etc type remind reasonable working&maintenance equipment)

3.Regularly callback service 

(1)Regularly via telephone type carry on tracking service &after-sale suggestion consulting;

(2) Buyer regularly return and visit,and help buyer solve site problems for free.

4.Emergency fault solve 

(1)When the equipment fault within 4 hours put support in telephone,if telephone can not solve the 

problems,whatever holidays supplier will send engineers come to site within 24 hours after got telephone 

or fax

(2) When the equipment fault,supplier hot service line:0512-66201577

5. Lifelong service 

(1) Supplier provide equipment lifelong technical consulting&service all for free; 


(2) Supplier provide system equipment lifelong spare parts(beyond guarantee period will charge with 

cost price.

Company Team



SINCE now has more than 105 worker, half of them are technical engineers, one quarter of them were high educated, SINCE had advanced technology in gas Industry, strogner manufacturing ability and perfect achievement 





Address: No78,Tongxin Road,High technology districit,Suzhou City

Factory Address:No78,Tongxin Road,High technology districit,Suzhou City