Cold Forming Seamless 2:1 Ellipsoidal Heads 2:1 Ellipsoidal Dished Heads cold Pressing Stainless Steel tank Ends offer robust solutions for oil, chemical, and water industries
Cold Forming Seamless 2:1 Ellipsoidal Heads
Specification:
Material | Carbon Steel;Stainless Steel; Aluminum; Exotic Alloys; Special Steel... |
Main Products | Torispherical; 2:1Semi Ellipsoidal; Hemispherical; Flat Bottom; Floating Heads; Tank Heads; Dish Heads; Dished Ends; Pipe Caps.... |
Surface Treatment | 1. Intermediate & Final stage Heat Treatments; |
Technology | 1.Cold & Hot forming ; |
Test | 1. Liquid Penetrant Examination; |

Haipei Industry proudly presents its premium line of Ellipsoidal Heads 2:1, an essential component in the construction of pressure vessels and tanks designed to meet the demanding requirements of various industrial applications. With a focus on quality, precision, and compliance with international standards, our elliptical tank heads deliver superior performance and adaptability.

| Type | Max Diameter (De) | Dish Radius (R) | Knuckle Radius (r) | Straight Flange (h)* | Thickness (S) |
|---|---|---|---|---|---|
| Ellipsoidal Head 2:1 | Max. 8000 mm | 0.833 Di | 0.156 Di | On request* | 2.5 – 60 mm |
| ASME Ellipsoidal Head 2:1 | Max. 8000 mm | 0.9 Di | 0.17 Di | On request* | 2.5 – 60 mm |
| Korbbogen Böden (DIN 28013) | Max. 8000 mm | 0.8 De | 0.154 De | On request* | 2.5 – 60 mm |
*Straight flange dimensions are subject to feasibility studies based on De and thickness.
Versatile Applications
Ideal for medium-pressure vessels such as air receivers and liquefied petroleum gas tanks.
Widely used in industries requiring safe and durable pressure containment solutions.
Optimized Design
Depth of dish equals one-quarter of the head’s internal diameter (ID), ensuring efficient stress distribution.
The inside height combines the depth of the dish and the straight flange, offering tailored configurations for specific requirements.
Economical Solution
Reduced metal thickness compared to other head types, lowering material costs without compromising structural integrity.
Customization
Manufactured using cold or hot forming techniques to accommodate various dimensions, materials, and thicknesses.
Every request undergoes a comprehensive feasibility study to ensure the highest quality and suitability.
Compliance with Standards
ASME-compliant 2:1 elliptical flanged and dished heads meet the rigorous requirements for unfired pressure vessels.

Expertise and Innovation: Decades of experience in producing elliptical tank heads for diverse pressure vessel environments.
Precision Engineering: Advanced fabrication processes ensure precise dimensions and durability.
Customer-Centric Approach: Tailored solutions for every project, with dimensions beyond indicated ranges evaluated for feasibility.
High-Quality Materials: Premium-grade materials to ensure long-lasting performance and safety.
The Ellipsoidal Head 2:1 is characterized by its unique geometry, consisting of a rotating ellipsoidal sphere combined with a cylindrical straight section. This design provides optimal strength and reduces material thickness requirements, making it an efficient and reliable choice for medium-pressure applications. The dish radius is approximately 90% of the diameter, while the knuckle radius is about 17%, ensuring balanced stress distribution and robust structural integrity.
For more information or to discuss your specific requirements, contact Haipei Industry. Our team of experts is ready to assist you with customized solutions, ensuring your pressure vessel needs are met with precision and reliability.

Cold Forming Seamless 2:1 Ellipsoidal Heads 2:1 Ellipsoidal Dished Heads/cold Pressing Stainless Steel tank Ends offer robust solutions for oil, chemical, and water industries 2:1 ellipsoidal head (also called a semi-ellipsoidal or elliptical head) is a pressure vessel closure where the major-to-minor axis ratio is 2:1, meaning its inside depth equals one-quarter of the inner diameter (D/4) elliptical dish end radius varies between the major and minor axis usually with the ratio is 2:1. The shape of this ellipsoidal head is more economical 2:1 Elliptical Dish Head for Pressure Vessels and Storage Tanks Haipei Industry manufacture custom 2:1 elliptical dish heads for pressure vessels, storage tanks, heat exchangers and industrial equipment cold forming procedure for a single piece 2:1 ellipsoidal dish end 2:1 elliptical tank heads offer an economic solution for medium-pressure tanks 2:1 Elliptical Tank Heads Pressure Vessel Heads 2:1 Ellipsoidal With its reduced metal thickness, 2:1 elliptical tank heads offer an economic solution for medium-pressure tanks.

Cold Pressed 2: 1 Ellipsoidal Head the shape of this head is more economical beasue the height of the head is just a graction of the diameter.its radius varies between the major and minor axis;usually ratio is 2:1 this size heads are used externsively in the construction of tanks for liquefied petroleum gas, air recievers and other unfired pressure vessels.these heads can be fored form carbon steel,stainless steel ,and other ferrous and non-ferrouns metals and alloys Cold Formed Ellipsoidal Dished Heads 2:1 Elliptical Flanged and Dished Tank Head Stainless steel Elliptical Heads and 2:1 ellipsoidal dished ends for pressure vessels and tanks 2:1 elliptical tank head is fabricated to have a specific shape instead of a particular dish or knuckle radius Asme 2:1 Ellipsoidal Elliptical Dish Head Custom large-diameter elliptical heads with professional processing hina ASME 2:1 Elliptical Head Manufacturers Factory Vessel heads are very varied used in candle holders to pipe end-pieces or pressure vessels in equipment construction.
Company information
Haipei industry can produce all types of dished ends heads. They can be manufactured from a number of steel types including pressure vessel and boiler quality, chrome moly and stainless steel. The company also offers 2:1 semi ellipsodial, hemispherical petals, torispherical ends as well as conical knuckled sections.

Haipei industry company is a leading producer of various types of dished heads, cones, and other special pressed products in different materials grades like Carbon Steel, Stainless Steel, Duplex, Super Duplex, Aluminum, Nickel and Nickel Alloys, Copper and Copper Alloys, Titanium and Its Alloys, Zirconium and all cladded material combinations.
Our Services
We offer our products in the following materials:
Carbon Steel: SA36, SA516-70, SA387 Grade 5 Class 2 (Forming Only), SA285 Grade C (Forming Only)
Stainless Steel: SA240T304/304L, SA240T316/316L, SA240T304H (Forming Only), SA240T904/904L (Forming Only)
Copper: O-Temper Material (Forming Only)
Aluminum: O-Temper Material (Forming Only)

Quality assurance
Quality is the most important aspect of strength.We will make the material from the material to the end of the monitoring, making sure that each part can be of high quality according to the regulations.Each program will be monitored to ensure any errors in the manufacturing process.
Competitive price guarantee
With years of experience, we can offer our customers the most competitive prices.At the same time, as a powerful factory, we can offer customers more favorable prices than other factories.
Delivery time guarantee
We will strictly control the manufacturing schedule to ensure punctual delivery.It can satisfy the customer's time schedule and ensure the continuous production of customers.
Packaging & Shipping
Cold Forming Seamless 2:1 Ellipsoidal Heads
1. Iron Frame2. Wooden Box3. Iron pallet4.Wooden pallet.5.Professional fixation6. Curstomed requirment

FAQ

Q: What’s the information should I provide when inquiry?
A: Thanks for your question. If you have drawings, we will be entirely in accordance with production drawings . If you do not have the drawing, you can tell me the product data. There are several important data, such as material, type of head( We have elliptical head, hemispherical head, dished head, flat head, etc. ),diameter, thickness, special tolerances or requirements. We can do the drawings according to your requirements, and you confirm that the final product drawings.
Q: what are surface treatment of the product?
A:Thanks for your question. For carbon steel products, we sandblasting descaling product surface. For stainless steel products, we use acid to remove surface oil and impurities.
Q: How do you ensure the quality of products?
A: Thanks for your question.Our production staff is trained through national quality department, and obtain the corresponding certificate, with years of production and design experience. Weld must undergo X-ray inspection to ensure that no defects.
Q: Can you help us matching related products?
A: Thanks for your question. Our company also is surrounded by a lot of ancillary businesses, such as flanges, boiler, oil refining equipment, etc. We can help you matching the highest quality products with the lowest prices .
Contact us

Contact: Frieda
Phone: +86 182 6483 8918
E-mail: [email protected]
Add: No.76,South.Road,Daiyue District,Tai'an,Shandong Province