our dished heads are used in a variety of applications and industries such as storage tanks, pressure vessels, road tank, food processing operations, chemical plants ,Nuclear operation, Oil Refining, Architectural feature, power generation.
Due to our forming experience and equipment, we can spin or press the first part of the process of forming your products, It depend on the thickness and material performance,
Our main products are 2:1 SE dished heads, Torispherical heads, Cones,Hemispherical Heads etc
Choosing the right type is the key decision for each customer and one for which our experience team to happy to give advice, simple speaking, the torispherical heads, the less ressure it can withstand, Conversely, the deeper dished heads, for example Elliptical heads, hemispherical, the greater pressure it can take.
Our in house-capability to form dished heads by cold press brings major benefits to our customers and sets us apart from others dished heads manufactures
For carbon steel dished heads, we can forming this dished heads from 76-9000mm in diameter and below 250mm in thickness
The general forming process as the below sketches
Technical Delivery Condition
2,Enquiry/order required information
We can give our clients once they gave us the below information
But if clients tolerance is higher than below Hokkai standards, it shall be provided to Hokkai prior to offer or ordering.
Hot Spinning Dished Head,SS Material Hot Spinning Dished Head,Hot Spinning Ellipsoidal Dished Head,Hot Spinning Punch Dish Head YIXING HOKKAI HEAD PLATE CO.,LTD , http://www.hokkaidishedend.com
The sapphire substrate for LED lighting accounts for more than 90% of the sapphire substrate. From the current sapphire application structure, about 80 applications are currently applied to sapphire substrates, and about 20 are applied to non-substrate materials. Among them, sapphire is mainly used for LED illumination and SOS related products, and substrate materials for LEDs account for 90%. Above, LEDs have the most direct and most important impact on the demand for sapphire substrates.
The demand for LEDs has rebounded, driving demand for sapphire upwards. In 2012, due to the economic downturn, the demand for LED lighting was not as good as expected, resulting in a sharp decline in the utilization rate of upstream MOCVD equipment. According to relevant agencies, the global MOCVD equipment utilization rate in 2012 was only 59, and only 42 in mainland China, leading to sapphire. Substrate demand growth was significantly lower than expected. At the same time, due to the continuous release of new production capacity of sapphire, the relationship between supply and demand continued to deteriorate, the supply ratio of demand was only 66, and the price of sapphire fell all the way. In 2013, with the accelerated penetration of LED backlights, the demand for LED lighting increased significantly, stimulating the use of MOCVD equipment. The rate has increased to 74 (63 in mainland China), driving the demand for sapphire substrates to pick up, the demand supply ratio has gradually improved, and the demand has increased from the demand of 57.13 million pieces per year in 2012 to 83 million pieces per year (equivalent to 2 inches). Calculated), the demand-to-supply ratio is 80, which is the main driving reason for the rebound in sapphire prices.
Demand for LEDs continued to increase in 2014, and demand for sapphire is expected to continue to rise. Looking forward to 2014, LED lighting products continue to cut prices, and some product prices have been comparable to energy-saving lamps, stimulating the demand for LED lighting to accelerate upwards. At the same time, in terms of policies, the global ban on incandescent lamps was introduced in 2014, and new standards in the EU, Japan and other regions have been with 2013. H1 implementation, other relevant standards are expected to be introduced around the end of the year, will further promote the penetration of LED lighting demand, is expected to continue to drive demand for sapphire substrate materials to pick up. We expect the supply ratio of sapphire demand to further increase to 91 in 2014, and the supply-demand relationship is expected to improve significantly.
Iphone mobile app or open the new application of sapphire. If 2014 new varieties use sapphire to protect the screen, it is assumed that the sales volume will be 40 million and 120 million in 2014-2015, which will increase the demand for sapphire by 97.14 million pieces per year, and 291.42 million pieces per year (equivalent to 2 inches). Calculated), 2014 is almost equivalent to the number of integrated sapphire substrates for LEDs. In 2015, it will be twice the demand for sapphire substrates for LEDs. According to this calculation, the scale of sapphire market is expected to grow more than five times. 
1,Our material (hot Rolled Unalloyed structural steel, high and low temperature steel, High Alloy steel)
We have no carbon steel plates in our stock and most of plates are from Chinese steel market or mill. Meanwhile As Japanese owed company, We can also source the plates from Japanese ex-mill if end user can`t accept ex-chinese mill.
Basically the delivery time shall be below 20days for dished heads if plates are from steel market. and Max plates width from them is below 2200mm. it means that the seamless dished heads diameter shall be below about 1800mm.
The max width CS plates that Chinese mill can do is below 4700mm,and dished heads can be seamless below 3800mm in diameter.
