About Openex fabrication
We have two manufacuring premises near Xiamen Port and Shanghai Port, both of which are very convenient for metal fabrication in all factors such as wheather, export, supply of material and technical supports.
The fabrication processes we can offer include laser cutting, bending, punching/stamping, welding, machining, assembling, as well as other ones such as roll forming, casting, forging, galvanizing, powder coating
Some of our fabrication & machining capacities are large and super large that few fabrication projects get disapppointed once inquiring to Openex, here listed are some key datas:
Over head crane tonnage over 250tons, max length and tonnage of bending machine over 18meters and 10,000tons, max CNC machine tools travel is up to 50mx8mx7m
Openex have delivered various kind of pressure vessels，machine frames，steel chassis，steel structures to USA，Canada，Japan，UK，European countries,Australia etc.
Our customers are from wide range of industries such as energy storage system, power plant, machinery, building, mining, oil&gas, neuclear etc. , only if they can draw it, we can realize it.
Openex even developed various kind of visual inspection machines to make sure that small metal parts with small size but large quantity can be check for 100% correct, compared to QC by human inspector, QC by visual inspection machine is far more relax, released, and trust worthy.
Openex, as a metal fabricator, is dedicated to be the most trust worthy in the world for the supply of large scale metal parts, components, and assemblies.
Our Products
Turbine Ring for Hydropower Station
Model: Customised-C-11
Parameters: Parameters could be customized per client: dimensions, tolerances, materials, surface and heat treatments
Solar Panel Support
Model: Customized-C-10
Parameters: Parameters could be customized per client: dimensions, tolerances, materials, surface and heat treatments
Wind Tree
Model: Customized-C-09
Parameters: Feature Specification
Height 9.8 m (32 ft)
Width 7.2 m (23.6 ft)
Number of turbines 36 Aeroleaves
Installed power 10.8 kW
Start-up wind speed 2.5 m/s (5.6 mph)
Annual output (typical) ~18,000 kWh
Annual CO₂ reduction 12+ tonnes
Weight 3,590 kg
Lifespan 25 years
Installation time ~3 days
Recyclable 100% at end of life
Milling machine center frame
Model: DM-2608
Parameters: Width 2m
Length 2m
Precision 0.01mm/1m
Precise steel frame for special purpose
Model: DM-612
Parameters: Width 1.5m
Length 4m
Precision 0.01mm/1m
Casting （incl. Iron casting,steel casting)
Model: Customized-R-02
Parameters: Ra 6.3 μm – Ra 12.5 μm (As Cast);
Ra 1.6 μm – Ra 3.2 μm (After Machining)
aluminum casting
Model: Customized-R-01
Parameters: casting process: Low Pressure Die Casting (LPDC), Low Pressure Sand Casting (LPSC), Precision Investment Casting
Custom metal fabrication of chain conveyor for car maker
Model: MBM-1
Parameters: material grade: carbon structural steel
processing method: cutting, welding, CNC machining
tolerance: high dimensional precision
surface treatment: sand blasting, painting optional
Steel chassis to carry steel cois in steel company
Model: JFE-1
Parameters: Weight: 10tons
LxWxH:appr 15x2.5x2.1m
Max Load: 35 tons
Multi-Cylinder Hydraulic Cone Crusher and Components
Model: Customized-J-06
Parameters: Processing Capacity: 90–1,200 t/h
Max Feeding Particle Size: 185–353 mm
Closed Side Setting (CSS): 10–51 mm
Max Installed Power: 132–600 kW
Crusher Weight: 10.4–68.65 tons
Material Thickness: Customized
Quality Inspection: Dimensional Inspection, NDT Testing, Welding Inspection
Energy Storage System Cabinet
Model: Customized-J-05
Parameters: Size: Customized
Material Thickness: 1.5–5.0 mm
Protection Rating: IP54 / IP55 / IP65
Surface Treatment: Powder Coating / Anti-corrosion Coating
Load Capacity: Customized according to battery system requirements
ultra-long formed steel box section
Model: Custom-L-1
Parameters: Overall length:8,000mm
Plate thickness:6mm
unit mass:1.5t
Overall straightness: <=3.0 mm per 10,000 mm
Equipment Enclosure
Model: Custom-L-2
Parameters: length:7,000 mm
width: 1,300mm
height: 1,000mm
Internal partition: 6mm
finished mass:2.0 t
large welded press frame
Model: Custom-L-3
Parameters: Typical reference configuration - subject to FEA:
Reference press force: 10,000-20,000 kN
Clear opening: approx. 2,500 x 1,800 mm
Main plate: 60-120 mm
Envelope: approx. 6,000 x 4,000 x 8,000 mm
Estimated mass: 80-140 t
large equipment structural frame
Model: Custom-L-4
Parameters: Typical reference configuration:
Overall size: 5,000 x 3,000 x 3,500 mm
Main tube: 200 x 200 x 10 mm
Estimated mass: 8-12 t
Hole position: +/-0.20 mm
Pad coplanarity: <=0.20 mm per 1,000 mm
large industrial weldment
Model: Custom-L-5
Parameters: Typical reference configuration:
Envelope: up to 6,000 x 3,000 x 2,500 mm
Plate thickness: 20-80 mm
Finished mass: 15-40 t
General machined tolerance: +/-0.20 mm
Datum-pad flatness: <=0.15 mm per 1,000 mm
heavy equipment skid
Model: Custom-L-6
Parameters: Typical reference configuration:
Overall size: 8,000 x 3,000 x 1,200 mm
Design equipment load: 30-60 t
Primary members: H300-H500
Estimated skid mass: 12-20 t
Mounting-pad flatness: <=0.20 mm per 1,000 mm
large welded crossbeam
Model: Custom-L-7
Parameters: Typical reference configuration:
Length: 6,000-10,000 mm
Box section: 800-1,200 x 600-900 mm
Plate thickness: 25-60 mm
Estimated mass: 12-30 t
Guide straightness: <=0.10 mm per 1,000 mm
heavy machine base
Model: B-300
Parameters: Published B-300 range:
Base size: 24 x 24 in. to 72 x 96 in.
Top plate: 1, 1.5 or 2 in.
Tube: 3 x 3 x 1/4 in.; 4 x 4 x 3/8 in. above 20 sq. ft.
Welded, stress-relieved and shot-blasted
Ground-top flatness: +/-0.001 in. cumulative
thermal vacuum chamber
Model: Custom-L-8
Parameters: Published large-scale reference:
External diameter: approx. 108 in. (2,743 mm)
Length: application-dependent
Material: 304 stainless steel
Operating pressure: 1 x 10^-6 to 1 x 10^-7 Torr
Application: full satellite assemblies
large box vacuum chamber
Model: Custom-L-9
Parameters: Typical reference configuration:
Internal size: 2,000 x 1,500 x 1,500 mm
Nominal wall: 12 mm with external stiffeners
Design vacuum: <=1 x 10^-5 mbar
Helium leak rate: <=1 x 10^-8 mbar L/s after final testing
Port layout: customized
large machined platen
Model: Custom-L-10
Parameters: Typical reference configuration:
Overall size: 3,000 x 2,000 x 250 mm
Estimated solid-plate mass: approx. 11.8 t before drilling
Machined-face flatness: <=0.10 mm per 1,000 mm
Surface finish: Ra 1.6-3.2 um
Cooling/heating channels: to approved drawing
pipeline cleaning pig
Model: PITBOSS Cleaning Pig
Parameters: Diameter range: 6-42 in. (150-1,050 mm)
Cleaning elements: conforming steel wire brushes
Sealing elements: polyurethane cups/discs, configuration-dependent
Configuration: standard or dual-diameter options
Pipeline compatibility: confirmed against actual ID, bends and valves
Wind Turbine Parts
Model: Customized-C-08
Parameters: Parameters could be customized per client: dimensions, tolerances, materials, surface and heat treatments
Feed Surge Drum
Model: Customized-C-07
Parameters: Parameters could be customized per client: dimensions, tolerances, materials, surface and heat treatments
Heat Exchanger Core
Model: Customized-C-06
Parameters: Parameters could be customized per client: dimensions, tolerances, materials, surface and heat treatments
Prefabrication of Pipelines
Model: Customized-C-05
Parameters: Parameters could be customized per client: dimensions, tolerances, materials, surface and heat treatments
Storage Container
Model: Customized-C-04
Parameters: Diameter 4500
Parameters could be customized per client: dimensions, tolerances, materials, surface and heat treatments
Heat Exchanger
Model: Customized-C-03
Parameters: Parameters could be customized per client: dimensions, tolerances, materials, surface and heat treatments
Crystallization Reactor
Model: Customized-C-02
Parameters: Parameters could be customized per client: dimensions, tolerances, materials, surface and heat treatments
Regenerator
Model: Customized-C-01
Parameters: Length: 42 meters
Diameter: 3600
Parameters could be customized per client: dimensions, tolerances, materials, surface and heat treatments
Telescopic Boom
Model: Customized-J-04
Parameters: Straightness Tolerance: ±1 mm
Height Difference: ＜1.5 mm
Surface Treatment: Painting / Powder Coating / Customized
Shell for Rotary Grinding Mills
Model: Customized-E-08
Parameters: Diameter：8-12m
Plate Thickness: 40～100mm
Large Carbon Steel Condenser
Model: Customized-E-07
Parameters: Weight: up to 70 tons.
Regenerative Air Heater
Model: Customized-E-06
Parameters: Diameter: 8.5 m
Length: 17.5 m
Weight: up to 95 tons
Stainless Steel Housing for textile washing machine
Model: Customized-E-05
Parameters: Plates Thickness：2-6 mm
Single Cylinder Hydraulic Cone Crusher
Model: Customized-J-03
Parameters: Processing Capacity: 34–2,595 t/h
Maximum Feeding Particle Size: 130–500 mm
Closed Side Setting (CSS): 4–120 mm
Maximum Installed Power: 90–750 kW
Crusher Weight: 5.3–85 tons
Powder Silo
Model: Customized-E-04
Parameters: Yield strength: approx. 700 MPa
Length: 7~12 m
Thickness：10~16 mm
Heavy-duty industrial equipment enclosures
Model: Customized-E-03
Parameters: Weight：2-8 tons
Length: 7~12 m
Thickness：10~16 mm
Plates for Special-purpose vehicle
Model: Customized-E-02
Parameters: Yield strength: approx. 700 MPa
Length: 7~12 m
Thickness：10~16 mm
Vibrating Screen
Model: Customized-J-02
Parameters: Capacity: 30–800 t/h
Screen Surface Size: 1500×5000 mm – 3300×8000 mm
Max Feed Size: 200 – 300 mm
Vibration Frequency: 13–16.2 Hz
Power: 15 – 90 kW (15 kW to 45×2 kW)
Decks: 2 – 4 decks
Equipment Weight: 4.5–33 tons
Overall Dimensions (L×W×H): 5580×2220×1200 – 9082×4260×2130 mm
Tube Sheet
Model: Customized-J-01
Parameters: Diameter: Customized, Max up to 10,000 mm
Thickness: Customized, Max up to 600 mm
Drilling Depth: Customized, Max up to 1,000 mm
Drilling Precision: ±0.05 mm
Quality Assurance: CMM Measurement, UT, PT, MT, PMI Inspection
Telescopic Boom of engineering machinery
Model: Customized-E-01
Parameters: Yield strength: approx. 700 MPa
Length: approx. 3 m
Surface treatment: painting
Steel Frames and boxes for Energy Strorage System
Model: XHC-009
Parameters: Overall dimension：1.1mx1.1mx2.2m
Weight：1000kgs/unit
Anti-rust：powder coating
Flywheel Energy Storage Shell
Model: AKI-1
Parameters: Diameter： 1.5meter
Height：0.8meter
Weight：2tons
Vacuum：>1.0 x 10-9 Torr L/s within 30 seconds
AGV steel chassis
Model: PSA-1
Parameters: Overall Dimensions:15x2.7mx3m
Weight: 10.5tons
Loading capacity: 30tons
Company Gallery
Certifications & Awards
Success Stories & Case Studies
Wind power generation system--Wind Tree
5 years stable operation
Hy precision
Low cost
Speedy Delivery
Long life
Flywheel energy storage system
5 years stable operation
High precision
Low cost
Quick delivery
Long life
Machinery manufacturer
1 year
CNC machined
High precision
Low cost,
Quick delivery
Solar company
3 years of stable operation
High precision,
Low cost
Quick delivery
Long life
Anodizing company
1 year of stable operation
High precision
High stability
Long life
Low cost
Quick delivery
Steel shelfs for energy storage （Li-battery）
3 years of stable operation
High precision
High stabiity
Long life
Quick delivery
Low cost
Industrial Robot application
3 years of stable operation
High precision
High viabration absorption
Long life
Quick delivery
Low cost
Machinery manufacturer
2 years of stable operation
High precision
Low cost
Large machining after fabrication possible
Assembling and testing possible
Quick delivery
Manufacturer of industrial products such as battery
2 years stable operation
High precision
Low cost
Assembling and testing possible
Quick delivery
Large AGV （Automated Guided Vehicle) manufacuturer， or autonomous vehicle builder
Stable operation for more than 4 years
High precision
HIgh quality
Strictly conform to specification
Low cost
Speed delivery
Steel mills （Steel works）
stable operation for 20years
High precision,
Ready for use once upon receipt
Low cost
Long life
Environment friendly
Modular Prefabricated Housing Manufacturer
stable operation for 4years
High precision,
Ready for use once upon receipt
Low cost
Long life
Environment friendly
Energy Storage System developer (or manufacturer)
3years
High precision
High strength
Low cost
Long life
Quick delivery
Manufacturer of Billard Table （Pool Table，Snooker Table）
5years
High precision
High strength
Low cost
Long life
Quick delivery
Oil/Gas/Power plant
10 years stable operation
High precision
High quality welding
High quality finishing
Hydropower station
very satisfactory, stable operation
Large/heavy machining with high precision
Need to separate rough machining and finally combine together for final precision machining for tight tolerance
Power Plant
Stable Operation, non complain
High precision
Good material
Manufacturer of DG （Diesel generator set）
20 years stable
High precision
Good resistance to rusty
Energy Storage System developer （and/or battery manufacturer)
No rust, no leakage, no deformation
High strength, high precision, quick delivery, easy to assemble into container, no deformation, no rust
Company & Product Videos
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Product Demonstration - Kestrel K-1
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Technology Innovation Showcase
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Customer Testimonials & Success Stories
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