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Large machining for yankee dryer cylinder part

This steel Yankee cylinder with size up to 6.2 meters in length by 5.6 meters in width by 5.9 meters in height is being machined at shop by utilizing WZ double column vertical turning and milling machine, which has a maximum machining capacity of 12.5 meters in diameter, 6000mm in height, and 400 tons in […]

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Large milling parts - excavator frame components

This excavator frame consists of three main components: left platform, right platform, turntable main body. Being as the key steel component of excavator, the turntable main body requirs highly on its accuracy. We choose to machine the turntable main body by our Italy Innse Berardi FAF280 (5 axis large boring mill) with two times of […]

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Heavy Machining Cases - 4.6m tube sheet for condenser

Product: 4.6m tube sheet for condenser Industry: shipbuilding Marine condenser device requires extremely high on its quality as it is working under the high temperature and high pressure, flammable, toxic and hazardous conditions. Tube sheet processing is an important process during the condenser manufacturing, its machining accuracy,especially the hole spacing and diameter tolerances, verticality, and finish quality […]

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End Plates for Vacuum Chambers

Pictured here are end plates for vacuum chambers made of stainless steel grade 304L. There are two different sizes for all the 80 pieces of end plates,one is 1610mm in outer diameter and 30mm in thickness,the other one is Diameter 1484mmx Thickness 22mm. Our quality control on the flatness of the plate and the tight […]

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Heat exchangers for production of ABS and AS

Metal: 304 Stainless steel Quantity:20 units Fabrication Processes:  Cutting, Roll forming, Machining, Welding, Stress release, Acid pickling. Application:ABS and AS manufacturing Features: 1 Multiple fabrication processes are involved; 2 Several bulkheads for the tubes to go through, therefore high tolerance is required for all the parts; 3 Complicated twin type, being large and long, therefore […]

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Complex precision steel fabrications

Metal:Carbon Steel Q345,equivalent to ASTM A529MGr50, Or EN10025-2 S355J2 Thickness:6mm Quantity:60pcs Processes of this Carbon Steel Fabrication: Slitting, Flattening, Laser Cutting and Bending/Folding Application:Request not to disclose Features: 1 Multiple bending/folding operation required; 2 Holes across the folding line; 3 Tight tolerance on straightness 4 Tight tolerance on bending corners; 5 Tight tolerance on flatness;  See […]

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Fabrication of bucket parts for excavation machine

 We are going to complete the fabrication of 200pcs of bucket parts for an excavation machine manufacturer. The bucket parts are made from high tensile steel grade Q345D-Z35, with the following chemical composition and mechanical properties: C:≤0.18;Si:≤0.50;Mn:≤1.70;P:≤0.015;S:≤0.004;Ni:≤0.50;Als:≥0.02; Nb:≤0.05;Ti:≤0.05;Cr:≤0.30;Cu:≤0.30;Mo:≤0.10;V:≤0.15; Ceq≥0.43。 Yield strength:≤16mm:≥345Mpa;16—40mm:≥335 Mpa;40—63mm:≥325 Mpa;63—80mm:≥315 Mpa;80—100mm:≥305 Mpa;100—150mm:≥285 Mpa;150—200mm:≥275 Mpa;200—250 mm:≥275 Mpa;250—400 mm:≥265 Mpa。 Tensile Strength:450—630Mpa Elongation:≥21% Impact […]

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Machined Stainless Steel Weldment--For printing and dyeing Textile Equipmen

Here pictured is an important part of printing and dyeing textile equipment, which is made from stainless steel 304. The job requires sawing, laser cutting, plasma cutting, bending, welding, machining. We completed all the processes under one roof. Look forward to larger machining and fabrication jobs, even tighter tolerance is fine to us.

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Stainless Steel Fabrication Ticket Gate For Subway Station

We have been given the order for 600 sets of ticket gates used in subway station, among which the first batch of 58 sets is ready for immediate delivery. During the stainless steel fabrication of the ticket gate, there are three important processes,precision cutting,precision folding, and precision welding which are conducted by laser welding robot […]

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Metal bending parts for wind turbine steel tower

This batch of products are used for wind power steel tower. Material: Q345B, thickness 8mm Max length of one piece: 11.85m

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About Openex

Openex is home to a full-service, one-stop-shop, contract manufacturing company producing custom large machined parts and fabrications. Our full large fabrication services including large machining, cutting, welding, rolling, punching, braking, testing, painting, and others.
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