Boiler China Welding Steel Tank Elliptical Cover Plate Head

China Elliptical Weld Steel Tank Cover Dish 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.

Large size elliptical head

Q345R torispherical head

Main Features

1.Ellipitical head is composed of half ellipsoid and a cylindrical straight segments. The Straight section can avoid mutation of radius of curvature between the connection welds of the head and cylinder, thus improving the stress status of the welds.
2.As The Meridian curvature change of ellipsoidal part of the tank head is smooth and continuous, the stress distribute uniformly.
3.Easy to punch forming compared with the hemispherical head, because the depth of ellipsoidal head is smaller than the hemispherical head. (elliptical end cap)

Carbon steel Q235B hemisphere

Carbon steel tank head

Product process 

select steel - cutting - welding - heating -  spinning - stamping - trimming - defect detection - surface treatment - QC - packing - shipment

Shandong Precision Metal Products Co., Ltd is located in Shangdong province China . and we mainly produce : elliptical head, dish head, spherical head, hemispherical head ,expansion joints, corrugated furnace and other non-standard head,etc. Available size : mould pressing Dia : 57mm-4800mm , spinning pressing Dia : 800mm-11000mm , Conical head Dia : 400mm-2600mm etc. Now our products had popular selling both domestic and foreign markets .

Our Workshop

Our engineer & designer

Our Sales Team

Delivery Details : 7-10 days after order of steel hemispheres

Packing Details  : 

1 . Pallet packing 

2 . wooden case packing
3 . steel pallet packing
4 . nude packing
5 . according to customers requirement

1. Help customer to design, making drawing;
2. Checking raw material, and inform customer before mass production;
3. Informing customer production schedule weekly;
4. Arrange shipment, and Inform customer in advance 7 days before finishing the order;
5. Welcome customer inspection and the third party inspection;
6. Expressing original document; 

7.What's the information should i provide when inquiry ?

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 which necessary to order heads:

Quantity
Type of Head
Dimensional Information (O.D., I.D., Thk., S.F., etc.)
Material Specifications
Special Tolerances or Requirements
Bevel Requirements
O.D. - Outside Diameter
I.D. - Inside Diameter
Thk. - Thickness (nominal or minimum)
O.A.H. - Overall Height
I.H. - Inside Height
S.F. - Straight Flange
R. - Radius
D.R. - Dish Radius
I.K.R. or I.C.R. - Inside Knuckle (or corner) Radius
I.D.D. - Inside Depth of Dish

Such as :  steel hemispheres , size (Dia): 36" , wall thickness : 1/4" , quantity : 10 pieces

A: We are experenced trading company and manufacturer and special in this line many years .

A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us as below: