Heavy Welding Fabrication

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Advanced Fabrication Facilities

With 250 ton lifting capacity, Openex offers heavy welding and fabrication services to meet the most large-scale requirements. We offer X-ray certified welding.

Openex is equipped with state-of-art welding equipment, skilled personnel,s and years of experience in multiple welding processes. Our welders are certified to the requirement of AWS,  ASME, ISO 3834, and other custom requirements. Like with our machining and forming equipment, Openex invests in innovative technology to maximize efficiency.

Our welding machines include welding robots, Plasma welder, strip surfacing machine, Cross welder, saddle welding machine, Lincoln welding machine, and gantry welding machines about 231 sets, support welding methods including AW, SMAW, MAG, MIG, TIG, PAW.

Materials: steel, stainless steel, aluminum, titanium, nickel-chrome, copper, etc.

Large Metal Fabrication Capabilities

A typical cross-section of work in progress including but not limited to Petrochemical towers, Mill shells, Pressure vessels, Heat exchangers, Wind Turbines, Dragline Bases, Yankee Dryers, Mining dump beds, Gas turbine Parts, GIS Shells.

  • Machining Capability to 7m(H)*8m(W)*50m(L)
  • Gantry Heavy Machining Center
  • 3,4 & 5 Axis Production Machining
  • Up to 250  Tons Lifting Capacity
  • Punching Capacity to 1100mm in depth
  • Turning Capacity to 20m in Diameter (bearing 50Tons)
  • Milling Capacity to 22m in Diameter (bearing 600Tons)
  • Press braking capacity up to 3000 Tons
  • Pressing capacity up to 5000 Tons
  • Plate Bending Rolls at 4m in Width 210mm(cold) in Thickness
  • Welding: PAW, BESW, NGW, GMAW, TIG, SAW
  • Testing: CMM, NDT, laser tracker detection, etc.
  • Heat treatment facilities
  • Sandblasting & Painting Facilities

Plate Forming

Openex offers a wide range of metal braking services. Whether you need simple aluminum channels or complex metal bending for  a special project, we have built our reputation on our ability to complete projects that many other fabricators shy away from.

Bending Capabilities                     

Press braking capacity:30-3000 tons; Max Braking length 15000mm.                 

Plate Rolling Max thickness: 210mm

Plate Cutting

All metal fabrications begin with cutting – we carry out laser cutting (most precise), plasma cutting, water-jet cutting, and torch cutting, and also include shearing and sawing.

CUTTING CAPABILITIES Thickness: 4mm~600mm, Max width: 8000mm, Max length:25000mm.

Heavy Welding

Thanks to our team of skilled professionals and our array of fabrication equipment, we are able to weld in a number of different materials and utilize the best welding processes.

High-quality performance is maintained at every stage of fabrication.

Qualifications: ISO 9001, 14001,18001, CE EN 1090-1, ISO 3834, ABS, AWS, API, ASME, DNV.GL, etc.

Heavy CNC Machining

Metal Fabrication and Machining for Aerospace Industry We are a leading aerospace parts manufacturer specializing in complex metal formed parts. We produce aircraft engine nacelles, bulkheads, heat shields, duct sections, and engine components. We also produce spacecraft parts including thermal shields, structural components, and fuel system components. What We DoWe support all metal forming & fabrication

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Wind Power Industry Heavy Component Metal Fabrication and Machining

1.30 sets of 3.6MW onshore wind turbine hubs Due to the special structures, complex shapes, and large volumes of wind turbine hubs and nacelles, plus the hubs need to connect the blades and rotor shaft while the nacelle houses critical wind turbine components like the gearbox and generator, the machining risk is very high. Considering

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tubesheet updated

We aspire to become the largest, most professional, most authoritative tube sheet fabrication base in China, we have a “one-stop” complete process from the material to cutting and discharging, bevel forming, welding, machining, our tube sheet products are widely used in pressure heat exchangers, nuclear power, petrochemical, coal chemical, hydropower, thermal power, energy, machinery manufacturing

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Textile Industry Machinery Parts

1.Large sanitary paper machine drying cylinder The dimensions of this drying cylinder exported to Japan are 6.2m x 5.6m x 5.9m. The main body is a rolled and welded cylindrical shell. In addition to meeting ASME design standards, it also must satisfy the stringent appearance requirements of Japan’s Ministry of Health, Labour and Welfare (MHLW)

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Marine Industry Metal Fabricated Products

1.Large ship base structure Qidong COSCO Marine Engineering Co., LTD., the world’s largest offshore wind power installation ship solid pile frame (gearbox). The jack-up wind power installation vessel Voltaire (N966), built by Qidong COSCO Marine Engineering for Jan De Nul Group in Europe, is specifically designed for the transportation, lifting and installation of offshore wind

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Semiconductor Industry Equipment

1.Base for monocrystalline silicon furnace, supporting integrated intelligent crystal equipment manufacturing This semiconductor monocrystalline silicon furnace base has very high precision requirements. Welding needs to be magnetically particle inspected, and after welding requires standard annealing in a high-temperature CNC electric furnace. Finally, machining is done on a Mitsubishi Heavy Industries MVR45 gantry boring and milling

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