Semi Ellipsoidal Heads Will Be Delivered To Indonesia

Semi Ellipsoidal Heads （also called ellipsoidal head, elliptical dish head）is the end caps on a cylindrical shaped pressure vessel which is made with carbon steel, stainless steel, cladding material and other alloy steel. The elliptical dish head is widely used in industrial storage or pressure vessels such as storage tanks, heat exchangers, towers or other equipments.

Our regular customer from Indonesia is boiler manufacturer and wholesaler. He needs semi ellipsoidal heads to produce deaerator equipment. Due to the ellipsoidal head isn’t standard, our dished head engineers make molds as per technical requirements. The elliptical dish head will be shipped to Surabaya in middle January.

Specifications Of Semi Ellipsoidal Heads

① Outer diameter: 848 mm

Thickness after forming: 15 mm

Material: SA 516 GR 70

Straight flange: 38 mm

Quantity: 2 pcs

② Outer diameter: 1694 mm

Thickness after forming: 23 mm

Material: SA 516 GR 70

Straight flange: 38 mm

Quantity: 2 pcs

③ Outer diameter: 842 mm

Thickness after forming: 15 mm

Material: SA 516 GR 70

Straight flange: 38 mm

Quantity: 2 pcs

④ Outer diameter: 1674 mm

Thickness after forming: 23 mm

Material: SA 516 GR 70

Straight flange: 38 mm

Quantity: 2 pcs

⑤ Outer diameter: 1216 mm

Thickness after forming: 6 mm

Material: SUS304

Straight flange: 38 mm

Quantity: 1 unit

⑥ Outer diameter: 2116 mm

Thickness after forming: 6 mm

Material: SUS304

Straight flange: 38 mm

Quantity: 2 pcs

Design code: ASME VIII Section, Division 1, 2017

Forming method: Hot stamping and cold spinning

Hot Stamping

Generally, the dished head with a large size and a thick steel plate needs to be hot pressed, and the hot pressing can improve the performance of the material and reduce the deformation resistance. After continuous pressing, the external dimensions of the workpiece should be measured to avoid an increase in the size of the workpiece due to thermal expansion of the mold. If necessary, appropriate measures should be taken to cool the mold, and the mold temperature should generally not exceed 250 °C.

Cold Spinning

During the cold spinning, the steel plate is subjected to severe strain, especially the arc transition zone and the straight flange of the edge of the seal, which are processed by the hoop compressive strain during the spinning process. Cold spinning heads generally require stress relief heat treatment.

About STRENGTH Equipments

Taian STRENGTH Equipments Co., Ltd is the professional pressure vessel designer, manufacturer and exporter dedicated in supplying finest quality industrial autoclave, storage tank and dish head products and solutions to worldwide customer over 20 years. We have over 80 talented research and development experts, 2 million square meters manufacturing factory and more than 50 sets large-scale manufacturing machines.  Our annual industrial autoclave and storage tank output can reach over 300 sets, dished head output can reach over 3000 sets.

STRENGTH Equipments is not only manufacturing high quality industrial autoclaves, storage tanks and dished ends but also providing custom product design, fabrication and after-sale service.  ODM, OEM are also available. If you have any questions or inquiries,  please fill and submit the following form, we will reply as soon as possible.

Stainless Steel Elliptical Head Shipped To Singapore

Stainless steel elliptical head (also called ellipsoidal head or elliptical dish end) is one of the main pressure elements that make up the pressure vessel, like storage tank, boiler, industrial autoclave, tower and so on. The stainless steel elliptical head radius varies between the major and minor axis usually with the ratio is 2:1.

We received an inquiry for stainless steel elliptical head from Singapore on Alibaba during the Chinese Spring Festival 2019 , it’s a trial order. Elliptical dish end is used for water treatment system design and testing for development, the customer provided the detailed dimensions of ellipsoidal head, our dished head engineers designed drawing as per his requirements. Our customer are satisfied with our scheme, he placed order of stainless steel elliptical head on Feb. 21, 2019.

Specifications of Stainless Steel Elliptical Head    

Outer Diameter: 324mm

Thickness after Forming: 4mm

Straight Flange: 25mm

Material: SS304

Quantity: 4pcs

Design Standard: ASME Standard

Surface Treatment: Double side mirror polishing

Preparations before stamping of stainless steel elliptical head

Test for several minutes before stamping, confirm that the equipment is in good condition for stamping.

Correct selection of die according to process regulations, avoid misuse, measure blank thickness, check whether the specifications of the die are appropriate (to prevent the lower die from cracking), and then use it after qualified inspection by inspectors.

After the upper and lower die of the ellipsoidal head is installed on the hydraulic press, check the position of the upper and lower die. The clearance between upper and lower dies should be even, and fasteners such as bolts and nuts should be tightened to ensure safety.

Lubricant should be applied on the die before stamping. Lubricants are made up of 40% graphite powder and 60% oil, or graphite powder and water.

When it is found that the working face of blank holder is brushed before or during stamping, it should be polished smoothly in time.

The clearance between blank and blank holder should be as small as possible to ensure no bulging.

When pressing flat head (tube sheet), after the upper die passes through the lower die ring, it can continue to the working platform of the press to ensure that the head plane is leveled once.

After demoulding, the head and tube sheet are not allowed to contact with the upper die again or press twice to prevent oversize size.

About STRENGTH Equipments

Taian STRENGTH Equipments Co., Ltd is the professional pressure vessel designer, manufacturer and exporter dedicated in supplying finest quality industrial autoclave, storage tank and dish head products and solutions to worldwide customer over 20 years. We have over 80 talented research and development experts, 2 million square meters manufacturing factory and more than 50 sets large-scale manufacturing machines.  Our annual industrial autoclave and storage tank output can reach over 300 sets, dished head output can reach over 3000 sets.

STRENGTH Equipments is not only manufacturing high quality industrial autoclaves, storage tanks and dished ends but also providing custom product design, fabrication and after-sale service.  ODM, OEM are also available. If you have any questions or inquiries,  please fill and submit the following form, we will reply as soon as possible.

Elliptical Cap was Exported to Indonesia on December

Elliptical cap is one part of industrial autoclave,oil storage tank,boiler. It is widely used for industrial autoclave,oil storage tank,boiler and other pressure vessel.

On 27th to 28th April. 2017, Indonesia customers came to our factory to visit. They visited our elliptical cap factory. They mainly visited our steel material, welding material room, laboratory, inspection room, workshop, technical department, office. After the visit, they were very satisfied with our factory and purchased a number of elliptical cap.

On 3rd,December,2017. elliptical cap exported to Indonesia.This was the second order from this Indonesia customer.

This order elliptical cap diameter is two sizes 810 mm, 1424 mm. Thickness is 19 mm and 22 mm,every size quantity is 2 pieces.

It is used for boiler to our customer. Because diameter size 810 mm and 1424 mm are not regular size.Our mold sizes are 800 mm and 1400 mm,so we made new mold for customer. According to customer’s request, we made groove on the elliptical cap edge. For better quality, we made sand blasting on elliptical cap surface.It let our products more better in appearance.

Our company  can produce and control quality according to Chinese standard and ASME standards. We have a perfect  quality assurance system and technical support, can provide high-quality products for customers all over the world.

We have a mature R & D design team, skilled manufacturer worker, skilled welder, advanced equipments. And we have long-term cooperation with a number of scientific research institutions. We can make elliptical cap , torispherical dish end, hemispherical tank heads. We can also manufacturer different shapes of the head according to customer’s  drawings and requirements.

About STRENGTH Equipments

Taian STRENGTH Equipments Co., Ltd is the professional pressure vessel designer, manufacturer and exporter dedicated in supplying finest quality industrial autoclave, storage tank and dish head products and solutions to worldwide customer over 20 years. We have over 80 talented research and development experts, 2 million square meters manufacturing factory and more than 50 sets large-scale manufacturing machines.  Our annual industrial autoclave and storage tank output can reach over 300 sets, dished head output can reach over 3000 sets.

STRENGTH Equipments is not only manufacturing high quality industrial autoclaves, storage tanks and dished ends but also providing custom product design, fabrication and after-sale service.  ODM, OEM are also available. If you have any questions or inquiries,  please fill and submit the following form, we will reply as soon as possible.

ASME Elliptical Head Scheme for Philippine Customer

ASME Elliptical Head (also called elliptical head, ellipsoidal head and elliptical dish ends) is the end caps on a cylindrical shaped pressure vessel, the material is often carbon steel, stainless steel and other alloy steel.

Our Philippine customer is the pressure vessel manufacturer, he needs elliptical head to produce air receiver tanks, our dished head engineer designed technical scheme according to customer’s requirements. He was very satisfied with our quick reply and service.

ASME Elliptical Head Scheme for Philippines Customer

Specifications of ASME Elliptical Head

Design and Manufacture: ASME Standard

ASME Elliptical Head Inner Diameter: 2200mm

ASME Elliptical Head Thickness: 16mm

Elliptical Head Material: SA 516 Gr 70 (it’s kind of carbon steel)

Elliptical Head Quantity: 2pcs

Elliptical Head Inner Diameter: 3000mm

Elliptical Head Thickness: 18mm

Elliptical Head Quantity: 2pcs

ASME Elliptical Head Scheme for Philippines Customer

STRENGTH Equipments can produce up to 8,000 mm diameter asme elliptical head depending upon thickness of material and wall thickness up to 32 mm depending upon material and diameter custom forms and dimensions on request.

The ellipsoidal head has good mechanical properties better than the torispherical head. Due to the application of spinning manufacturing process in recent years, the fabrications of the larger diameter elliptical head is also can be realized. ASME elliptical dished heads are used in the construction of tanks for unfired pressure vessels, such as liquefied petroleum gas and air receivers.

About STRENGTH Equipments

Taian STRENGTH Equipments Co., Ltd has covered an area of 500 acres manufacturing factory. Pressure vessel manufacturing factory covers an area of 200 acres, Dished Head manufacturing factory covers 100 acres, forging manufacturing factory covers an area of 200 acres. We have been wined many bids and reputation in lots of domestic and overseas large-scale projects. We had become the leading industrial autoclave and dished head solution brand in China. We had provided high competitive and finest quality products to over 20 countries.

STRENGTH Equipments is not only manufacturing high quality industrial autoclaves, storage tanks and dished ends but also providing custom product design, fabrication and after-sale service.  ODM, OEM are also available. If you have any questions or inquiries,  please fill and submit the following form, we will reply as soon as possible.

High Quality Ellipsoidal Head

Ellipsoidal head (also called elliptical head or elliptical dish end) is usually made with Carbon steel, stainless steel, austenitic and non ferritic metals that can be cold worked. The shape of this ellipsoidal head is more economical, because the height of the head is just a fraction of the diameter. The elliptical dish end radius varies between the major and minor axis usually with the ratio is 2:1. The elliptical tank head is the economical solution for medium pressure tanks due to the reduced metal thickness requirement.

Ellipsoidal Head

Ellipsoidal Head Specifications

• Materials: Ferritic, austenitic and non ferritic metals that can be cold worked.
• Fabrication Method: cold dishing and flanging or pressing.
• Dimensions: up to 8,000 mm diameter and 32mm thickness.
• Edge preparation: according to your requirement.
• Approval: ASME.
• Inspections: by TÜV or other inspection companies.

elliptical heads manufacturers

elliptical head

STRENGTH Equipments is the professional dished heads manufacturers who had been dedicated in supplying industrial autoclave, storage tank and tank head products and solutions to worldwide customer over 20 years. We can produce up to 8,000 mm diameter asme elliptical head depending upon thickness of material and wall thickness up to 32 mm depending upon material and diameter. custom forms and dimensions on request.

The ellipsoidal head has good mechanical properties better than the torispherical head. Due to the application of spinning manufacturing process in recent years, the fabrications of the larger diameter elliptical head is also can be realized. ASME elliptical dished heads are used in the construction of tanks for unfired pressure vessels, such as liquefied petroleum gas and air receivers.