Description:
6300 Pieces Slip-on Flanges Manufactured for Dyeing and Printing Machinery
Dimensions:
Over 6300 pieces over 300 specifitions
Processes:
Machining, CNC Turning, CNC Milling, Thermal stress relieving, Inspection etc.
Those slip-on flanges are used for dyeing and printing machinery. Slip-on flanges, also known as ‘hubbed flanges’, have a hub with a very low profile. This type of flange is usually connected to a pipe by one or two fillet welds (one outside the flange and one inside the flange), it is however possible to use only a single weld. Slip-on flanges are produced in many sizes and favoured for lower pressure applications (ASME class ≤ 600).
The slip-on flange could be divided several different types,slip-on plate flange,slip-on hub flange,socket-weld slip on flange etc.The slip on plate flange is just like a ring with bolt holes,the slip on hub flange is like a plate flange with a neck or hub,the cost is higher than the slip on plate flange,but it can supply a better joint quality and reinforcement.The socket weld slip on flange is also call socket weld flange,this kind of flange just need one fillet welding to connect the pipe.
Openex is a global manufacturer of various flanges. Upon request, we manufacture the forging of flanges and blinds that are custom-designed to customer dimensional requirements. We have an extensive track record of producing flanges from a wide variety of material grades. Our extensive raw material inventory allows us to manufacture forged flanges to the most challenging customer-specified product chemistry requirements.
General Capabilities:
Flange Manufacturing Types :
Materials:
General Processing:
Diameter:
Up to 10 meters OD
Contact us at sales3@openex.com.cn or call us at +86 186 5928 0806 for more information about manufacturing for flanges and to receive a free project quote today.
Our Full-Service Metal Fabrication - metal cutting and sheering, metal forming, bending, and rolling, welding, CNC machining, sheet metal assembly, and quality inspection
Machining Services: Multi-Axis Machining, 5-Axis Machining, CNC Milling | Vertical and Horizontal, CNC Turning | Vertical and Horizontal, CNC Engineering, CMM Inspection
Material Types: castings, forgings, fabricated weldments, billets, bar stock, and plate
Metal Materials we worked: Stainless steel, Carbon Steel, aluminum, brass, bronze, chromium, copper, Monel, nickel, titanium, zinc, and many other superalloys.
Description:
Heavy CNC Machining for Large Pressure Vessel Flange with a Diameter of 10m
Dimensions:
diameter:10 meters weight:15 tons, thickness: 44-640mm
Processes:
Machining, CNC Turning, CNC Milling, Welding, Thermal stress relieving, Inspection etc.
This large diameter flange is used for pressure vessel. Pressure vessel flange is a common connection part of pressure vessel,and it is the basic component connecting various pressure vessel parts and pipelines. Pressure vessel flange is widely used in petrochemical,electric power,atomic energy,light industry and other modern industrial fields. The flange of high pressure vessel is a set of components,including flange,gasket,matching studs and nuts. The function of flange is to ensure that the connection parts do not leak, so that different vessels or pipes are combined together. Operating principle of pressure vessel flange: the overall sealing performance is the priority factor in the design and selection of vessel flange. When the flange bolts are tightened, the bolt pressure compresses the gasket through the flange ring, and the pressure forces the gasket to produce compression deformation. With the increase of bolt force, the flange sealing surface and sealing gasket are closely combined to prevent the leakage of fluid medium and create the initial sealing environment.
More details of the machining process, view the video below:
Custom made large diameter flanges can come as large as the customer requires and made to their design specs. Our extensive heavy-duty manufacturing capability combined with a large inventory of plate stock allows us to meet the most complex and challenging quality and delivery requirements. We leverage numerous fabrication methods, including plate burning, CNC and conventional machining, automated flange drilling, robotic welding with automatic positioning, and many other state-of-the-art technologies to produce flanges with precise tolerances and fine surface finishes. Our expertise spans all flange types, including blind and reducing flanges, spectacle and paddle blinds, O-rings and Victaulic rings, adapter rings, and many other custom flanges. We can provide thermal stress relief, die-stamp/etching identification markings, and apply protective coatings, all in-house.
As an ISO compliant manufacturing company, we perform both in-process and final inspections to ensure flange quality. In addition to traditional dimensional measurement equipment, we use high-end laser devices to verify tolerances. We offer non-destructive testing (NDT) on flanges for the most stringent applications to confirm they are defect-free. We provide material traceability and inspection reports to document that our products meet the highest standards of excellence.
Send us your drawing, and we will reply with a quote. We offer same day shipment for stock items and provide rush and emergency services when time is a factor or service is interrupted. For more detailed information about our standard and custom flange products, contact us at sales3@openex.com.cn now.
Product Name:
8.6m tube sheet for oxidation reactor in petrochemical industry
Material: Stainless Steel
Holes Quantity: more than 37000
Weight: 75tons
Mainly equipment used in this project: Innse Berardi 280 Horizontal Milling & Boring Machine
Hole Shape: Round or as required
Tube sheet is widely used in Desalination, Pressure Vessels, Heat Exchanger, Paper making machine, Oil refining, Steam Turbine, and many other industries.
We can provide machining service for almost all tube sheets, small or large in size, rounded or rectangular in shape.
To achieve high efficiency, we have a large array of multi-spindle milling-drilling CNCs. With our CNC array, the dimension tolerance, including the flatness, parallelism, perpendicular, circularity, and cylindricity can be achieved to an unrivaled tight level.
Except for tens of multi-spindle CNCs, we also have more than 11 deep-hole milling-drilling CNCs to meet some special tasks which might need holes deep up to 1200mm.
Compared to the ever-used radial drilling machine, the CNCs we used dramatically increase productivity.
Firstly, no need to draw lines to mark the position of the holes.
Secondly, multi-holes can be drilled at the same time, rather than one by one.
Thirdly, one operator can take care of four CNCs.
High productivity means low cost, the large array of CNCs can meet the different scale of jobs. We have been awarded machining work for a large number of tube sheets with length more than 12meters, and another large machining jobs for tube sheet with a diameter of 9.3 meters, we also have machined tube sheets as small as 450mm with a thickness of only 25mm.
Thanks to a large number of machine centers, we can obtain the supply of cutters at a relatively low cost and sustainable stable supply. The metal material for the tube sheet No matter metal material for the tube sheet is carbon steel, stainless steel, titanium, or any other special alloy, we can get supplied from tens of Chinese large mills.
Any requirements, feel free to contact us at sales3@openex.com.cn.
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Description
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11.9m Tube Sheet Baffle Plate for Paper Making
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Material
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Stainless Steel 304L
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Finish
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Degreasing, Tarnishment
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External Size
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11900mm (11.9m) in diameter
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Hole Shape
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Round or as required
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Hole Depth
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within 1100mm
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The tube sheets we have produced feature as below:
Tube sheet is widely used in Desalination, Pressure Vessels, Heat Exchanger, Paper making machine, Oil refining, Steam Turbine, and many other industries.
We can provide machining service for almost all tube sheets, small or large in size, rounded or rectangular in shape.
To achieve high efficiency, we have a large array of multi-spindle milling-drilling CNCs. With our CNC array, the dimension tolerance, including the flatness, parallelism, perpendicular, circularity, and cylindricity can be achieved to an unrivaled tight level.
Except for tens of multi-spindle CNCs, we also have more than 11 deep-hole milling-drilling CNCs to meet some special tasks which might need holes deep up to 1200mm.
Compared to the ever-used radial drilling machine, the CNCs we used dramatically increase productivity.
Firstly, no need to draw lines to mark the position of the holes.
Secondly, multi-holes can be drilled at the same time, rather than one by one.
Thirdly, one operator can take care of four CNCs.
High productivity means low cost, the large array of CNCs can meet the different scale of jobs. We have been awarded machining work for a large number of tube sheets with length more than 12meters, and another large machining jobs for tube sheet with a diameter of 9.3 meters, we also have machined tube sheets as small as 450mm with a thickness of only 25mm.
Thanks to a large number of machine centers, we can obtain the supply of cutters at a relatively low cost and sustainable stable supply. The metal material for the tube sheet No matter metal material for the tube sheet is carbon steel, stainless steel, titanium, or any other special alloy, we can get supplied from tens of Chinese large mills.
Any requirements, feel free to contact us at sales3@openex.com.cn.
Description:
HP Feederwater Heater Component Machining For Power Plant
Dimensions:
Height 3000mm, inner diameter 700mm, outer diameter 1000mm,
Processes:
Machining, Milling, Drilling, Boring, Inspection etc.
HP Heater(feeder water heater) is an important equipment ofpower plant regenerative system. Tube sheet, tubes, shells are the main components of HP heater. Due to its harsh working environment, the erosion and erosion of steam water can easily cause the corrosion of the burst pipe and the surfacing layer of the tube sheet. In order to solve this problem, the customer designed and developed the header(kind of Integrated tube sheet) instead of the tube sheet.The new developed component is what manufactured.
There are 6 sets of the components, We use pama130, pama160, Mitsubishi floor boring machine for synchronous processing to ensure the processing progress. The structure of the component is complex. The blank is a forging cylinder with an outer diameter of 1m, an inner diameter of 700mm and a height of 3m. More than 1900 bosses with a diameter of 25 mm are irregularly distributed on the outer surface of the workpiece. Each boss needs to be drilled through a 10 times diameter through hole, and the hole diameter accuracy and roughness have high requirements. The wall thickness between the boss and the pupil is only 4mm, and the accuracy of the wall thicknesses of each hole is less than 0.1mm. Faced with the problem that the workpiece has many bosses and irregular distribution, thin wall thickness and large machining allowance, it is easy to cause stress deformation. We use the overall small cutting amount and fast feed processing method to control the overall stress deformation problem. and purchasing custom-made tools to ensure the technical requirements of hole diameter and hole wall accuracy.
At present, we've finished two sets, The customer is very satisfied with the quality of the product through inspection and has placed an order for 8 more sets of this product.
With our large-scale CNC machining capabilities, Openex is a premier provider of quality machined parts and fabrications. Serving the needs of clients from coast to coast, our facility is equipped with large swing lathes, heavy duty CNC drills, and machining centers that allow us to manage workpieces with oversized dimensions and weighing up to 250 tons. Our machining equipment is located in a high bay area with lifting capacity that enables us to safely maneuver heavy workpieces. We have a staff of technically skilled machinists noted for their fine quality workmanship and attention to detail on each machining project.Contact us at sales3@openex.com.cn now for more information about our CNC machining capabilities or a quote.



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 loading weight. The Yankee dryer was designed by a leading world-known tissue machine supplier, who tells that it will be exported to Portugal.
Openex is with 15 years experiences in large machining, heavy fabrication etc.



