Manufacturer of cryogenic centrifugal and piston pumps for pressurization and transfer of liquefied gases.
Sefco AG
Therwil (Headquarters) · Bottmingen · Shanghai · Hong Kong · Pennsylvania, USANew on Amplifa
About Sefco
Sefco AG, headquartered in Therwil, Switzerland, develops, manufactures and distributes cryogenic pumps and systems for pressurization and transfer of liquefied gases such as LNG and LCO2. The portfolio comprises cryogenic centrifugal pumps as well as reciprocating piston pumps, complemented by customer support, spare parts service, maintenance, installation, commissioning and training. The value chain includes research and development, engineering, precision machining, in-house precision assembly, as well as quality inspection and acceptance testing. The Therwil site offers a cryogenic test facility with a capacity of 60'000 liters of liquid nitrogen as well as a hydrodynamic test facility for large-scale research studies and endurance and acceptance tests; every pump undergoes a cryogenic acceptance test before delivery. Customers include companies from the cryogenic and gas industry such as Linde AG. Through its own locations in Shanghai and Hong Kong as well as representatives and service partners worldwide, Sefco supplies and supports customers internationally.
- Site
- Therwil
- Processes
- Precision machining (advanced machining methods, material processing), In-house precision assembly, Cryogenic and hydrodynamic test rigs (endurance and acceptance tests), Cryogenic immersion tests with liquid nitrogen (capacity 60'000 liters LN2), Engineering & development of cryogenic pumps and systems, Manufacture of cryogenic centrifugal pumps and reciprocating piston pumps for, Acceptance testing of every pump under cryogenic conditions before delivery, Customer Support
- Materials
- Cryogenic Test Facility, Hydrodynamic Test Facility, Precision Machining
- Certificates
- ISO 9001:2015, ISO 9001:2015 (SQS/IQNet, H60369)
- Founded
- 1974
- Industries
- Cryogenic Industry, LNG, Liquefied Gases (including LCO2), Truck Offloading / Tank Transport
- 01
Research and Development
- 02
Engineering
- 03
Precision Machining
- 04
In-house Precision Assembly
- 05
Inspection and Quality Control
- 06
Cryogenic Acceptance Testing before Delivery
- 07
Spare Parts Service, Maintenance and Training
Processes and Testing Capacities
Cryogenic Test Facility
Test facility with 60'000 liters of liquid nitrogen for large-scale investigations as well as endurance and acceptance tests under cryogenic conditions.
Hydrodynamic Test Facility
Test rig for hydrodynamic investigations and acceptance tests on cryogenic pumps.
Precision Machining
Material processing using modern machining methods in accordance with the design specifications of the cryogenic pumps.
Locations
Therwil
CHHeadquarters, manufacturing, warehouse and test facilities
- Cryogenic test facility (60'000 L LN2)
- Hydrodynamic test facility
Bottmingen
CHFormer headquarters
Shanghai
CNSefco China, office and warehouse
Hong Kong
HKSefco Asia
Pennsylvania, USA
USUSA office
Pumps and Systems
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Precision machining (advanced machining methods, material processing)Machining | – | – | – | – | – |
| In-house precision assemblyAssembly | – | – | – | – | – |
| Cryogenic and hydrodynamic test rigs (endurance and acceptance tests)Testing | – | – | – | – | – |
| Cryogenic immersion tests with liquid nitrogen (capacity 60'000 liters LN2)Testing | – | – | – | – | – |
| Engineering & development of cryogenic pumps and systemsEngineering | – | – | – | – | – |
| Manufacture of cryogenic centrifugal pumps and reciprocating piston pumps forAssembly | – | – | – | – | – |
| Acceptance testing of every pump under cryogenic conditions before deliveryTesting | – | – | – | – | – |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Cryogenic test facility | Sefco | 1 | LN2 capacity 60'000 liters | – | Therwil, Switzerland |
| Hydrodynamic test facility | Sefco | 1 | – | – | Therwil, Switzerland |
Additional services
Reference customers
Quality
Sefco AG operates with a management system certified to ISO 9001:2015 (SQS/IQNet, Reg. No. H60369). Every pump undergoes acceptance testing under cryogenic conditions before delivery, complemented by strict inspection and quality control in manufacturing.
| Evidence | Therwil | Bottmingen |
|---|---|---|
| ISO 9001:2015 (SQS/IQNet, H60369) |
History
- 1974
Sefco AG founded by J.G. Kempf in Binningen, Switzerland.
- 1975
Linde AG purchases the first pump designed by Sefco.
- 1990
Relocation to the new plant in Bottmingen, Switzerland.
- 2000
Opening of an office in Pennsylvania, USA.
- 2006
Wehn GmbH becomes service partner for Germany.
- 2011
Torchlight Consulting becomes representative and service partner for China.
- 2015
Opening of the new manufacturing and testing facility in Therwil, Switzerland.
- 2018
Opening of Sefco China in Shanghai.
- 2019
Opening of Sefco Asia in Hong Kong.