About KEPUNI
The company is headquartered in Shanghai, the international metropolis, which is 15-minute drive to Hongqiao Airport and High-Speed Railway Station. The company has a production park of 10 thousand m2 with 280 colleagues working in it, including 36 experts in R&D. The subsidiaries scatter widely in the cities of Tianjin, Guangzhou, Chongqing and the provinces of Anhui, Jiangsu etc. The products are supplied broadly in the five continents around the world through the sales agents and distributors in Europe, Asia and South America.
The company’s core R&D team occupies a 20-year experience in the field of professional welding, professional power supply, pipeline welding and its automation. We are committed to providing our customers with reliable quality and environmentally friendly products. The company has independent capability of R&D, production, sales and after-sales service in closed orbital welding heads, open orbital welding heads, tube to tube sheet welding head, cold welding machine, orbital cutting machine, tube facing machine, hand held laser welding machine, ultrasonic metal-welding machine and others. All customers and potential partners are welcome to visit us.
Our Products
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Pipe And Vessel Girth Welding Machine XD-GH Series 5-400A
Model: XD-GH Series
Parameters: 7342900257
High Current Girth Welder XD-GH Series For 25mm Wall Pipes
Model: XD-GH Series
Parameters: 2851209302
Boiler Tube Girth Welding Machine XD-GH Series ASME Compliant
Model: XD-GH Series
Parameters: 6998268963
TB-65 Series Tube-to-Tube Sheet Welder for Heat Exchangers
Model: TB-65 Series
Parameters: 0158964098
TB-35 Series Tube-to-Tube Sheet Welder for Heat Exchanger Fabrication
Model: TB-35 Series
Parameters: 0529395975
G400 Tube-to-Tube Sheet Welder for Heat Exchangers and Boilers
Model: XD-G400
Parameters: 2024657931
KEPUNI K Series Open Pipe Welding Machine for Oil Gas and Power Generation
Model: K Series
Parameters: 8191248808
Portable Open Pipe Welding Machine XD-K Series for Pipe OD 19-325 mm
Model: XD-K Series
Parameters: 0590136097
Compact Orbital Welding Machine for Heat Exchanger Tube-to-Tube Sheet
Model: XD-U Series
Parameters: 7050189383
Precision Orbital Welding Machine XD Split Type Weld Head for 3.175-25.4 mm Pipes
Model: XD-Split Type Weld Head
Parameters: 9533811390
Compact Closed Weld Head for Small Diameter Pipes 40 Series
Model: 40/80/120/170 Series
Parameters: 7452118960
Versatile Closed Weld Head for Standard Pipes 80 Series
Model: 40/80/120/170 Series
Parameters: 5213545017
High-Performance Closed Weld Head for Large Pipes 120 Series
Model: 40/80/120/170 Series
Parameters: 0293625549
Heavy-Duty Closed Weld Head for Max Pipe Sizes 170 Series
Model: 40/80/120/170 Series
Parameters: 0811684113
Orbital Welding Machine 10H Series Split Type Weld Head for Small Diameter Pipes
Model: 10H Series
Parameters: 5060299856
Split Type Orbital Welding Head 5H for Small-Diameter Tube Welding
Model: 5H Series
Parameters: 9296315743
High-Purity Orbital Welder XD-20PRO for Semiconductor UPG Piping
Model: XD-20W
Parameters: 0761567488
Orbital Welding Machine XD-20PRO Hi-Purity for Semiconductor UPG Piping
Model: XD-20PRO
Parameters: 7532821366
Orbital Welding Machine XD-20PRO Pharma for WFI and CIP/SIP Piping
Model: XD-20PRO
Parameters: 9949155398
Orbital Welding Machine XD-20PRO Sanitary for Food and Dairy Pipelines
Model: XD-20PRO
Parameters: 5790375316
Orbital Welding Machine XD-20PRO Medical Spec for Hospital Gas Piping
Model: XD-20PRO
Parameters: 9223341183
Orbital Welding Machine XD-20PRO Standard for Industrial Pipe Welding
Model: XD-20PRO
Parameters: 8302507709
Company Gallery
Certifications & Awards
Success Stories & Case Studies
HVAC / Shell & Tube Heat Exchanger
ASME U-stamp certified | 100% helium leak test pass | Units shipped to 6 countries
ASME U-stamp certified; 100% helium leak test on all tube joints; Products exported to 6 countries
Hospital / Medical Gas System
HTM 02-01 / NFPA 99 compliant | 100% leak test pass | Hospital commissioned on schedule
HTM 02-01 and NFPA 99 compliant; 100% helium leak test pass; Hospital opened on schedule with zero delays
Power Generation — Boiler Tube Replacement
ASME Section IX qualified welds | 100% UT pass rate | Plant reconnection 4 days ahead of schedule
ASME Section IX and B31.1 compliant; 100% ultrasonic testing pass; Saved 4 days on shutdown window
Chemical / Petrochemical — Acid Transfer Piping
Zero leak incidents | API 582 welding requirements met | Client repeat order placed
API 582 compliant; Zero safety incidents during welding; NACE MR0175 material verification completed
Water Treatment / Seawater Desalination
All welds passed ASME B31.3 pressure test | Zero rework on 400+ girth welds | Project delivered 2 weeks early
ASME B31.3 compliant; Zero weld rework; Project delivered 2 weeks early; Client praised on-site support
Semiconductor / UPG Distribution Piping
SEMI F57 cleanliness standard met | Zero particle exceedance events | FAB production uninterrupted
SEMI F57 particulate level verified; 100% weld joint documentation; Client confidence boosted by repeat orders
Food & Beverage / Dairy Sanitary Pipeline
3A Sanitary Standard certified | Zero contamination incidents | 100% pressure test pass
3A sanitary certification obtained; Hydrostatic test 100% pass; Installation completed 1 week ahead of schedule
Pharmaceutical / WFI Pure Water System
Zero weld defects | EU GMP audit passed (first attempt) | All weld records documented
EU GMP audit passed on first inspection; 100% hydrostatic test pass; Weld quality traceable to each joint
Company & Product Videos
Company Introduction & Factory Tour
⏱ Duration: 3:45 | 👁 Views: 15,230
Product Demonstration - Kestrel K-1
⏱ Duration: 5:12 | 👁 Views: 28,450
Technology Innovation Showcase
⏱ Duration: 4:30 | 👁 Views: 12,890
Customer Testimonials & Success Stories
⏱ Duration: 6:20 | 👁 Views: 9,650
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