Precision Fabrication and Assembly

Fully fabricated, machined and assembled frams for the Glass Manufacturing Industry.

Fully fabricated, machined and assembled frames for the Glass Manufacturing Industry.

J & J Burning and Fabricating Company fabricated and assembled 40 Overhead Cooler Cart Frames for a world leader in architectural and automotive glass manufacturing. These precision steel fabrications are made from certified A36 plate, channel, beam and angle, along with ASTM A500 steel tubes. Each one of the 350 pound frames is made up of 46 separate details and welded by the experienced team of AWS D1.1 certified welders at J & J Burning. After machining, 137 additional details were assembled to the frames. The complete project was delivered to the customer on-time and defect-free.
Cooler Cart Frames for a global leader in glass manufacturing.

Cooler Cart Frames for a global leader in glass manufacturing.

These intricately assembled frames are critical components of a float glass line. Float glass is a sheet of glass made by floating molten glass on a bed of molten metal, typically tin, although lead and various low melting point alloys were used in the past. This method gives the sheet uniform thickness and very flat surfaces. The glass flows onto the tin surface forming a floating ribbon with perfectly smooth surfaces on both sides and an even thickness. As the glass flows along the tin bath, the temperature is gradually reduced from 1100 °C until the sheet can be lifted from the tin onto rollers at approximately 600 °C. The glass ribbon is pulled off the bath by rollers at a controlled speed. Variation in the flow speed and roller speed enables glass sheets of varying thickness to be formed.

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Perspectives from a Steel Fabricator

According to the American Iron & Steel Institute, the steel industry supports over one million jobs in the United States and every one job in our industry supports seven jobs in the overall national economy. What happens in the steel market is therefore not just important to those of us directly involved in steel fabrication, but to virtually every person in our country.

At the end of last month, raw steel output in the United States hit an eight month high. The mills operated on an average capacity utilization of 78.4% and made 1,885,000 net tons of steel. For comparison, during this same week last year, the mills operated at 76.2% capacity and produced 1,827,000 tons.

With the steel mills producing more steel and utilizing a greater percentage of their overall capacity, one may think that supply is abundant and prices are level. However, from our vantage point as a steel fabricating company, we see just the opposite. Mill lead times are out 10-12 weeks, which is the longest in several years. Prices have climbed $130 per ton and the amount of foreign material available is not enough to have any real effect on the domestic market. All of this, coupled with the still frozen waterways, has created some challenges for fabricators and end users trying to secure the material needed to manufacture parts. However, it is also an indicator that the market is gaining strength, which is certainly good news across the country.

J & J Burning has been in this business for 56 years. We have established strong relationships with many steel suppliers and will continue to have access to the material needed to fill orders
at competitive prices despite the pressures in the market.

Domestic Steel Plate Prices December 2009 - Present

Domestic Steel Plate Prices
December 2009 – Present

Domestic Steel Mill Capacity Utilization January 2008 - Present

Domestic Steel Mill
Capacity Utilization
January 2008 – Present

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Large Capacity Steel Fabricator

4459

4459C

250,000# Steel Fabrication

250,000# Steel Fabrication

The Base and Top Housing in these photos are two main components used to build a Hydraulic Roller Leveler.
Hydraulic Roller Levelers have become the most versatile and efficient metal flattening machines on the market today. Adjustments are accomplished by moving only the Base portion of the Leveler. With brute hydraulic force, stress is neutralized while delivering a premium quality product day after day. Development of world class controls and a unique set of options have made these Levelers very productive and easy to operate, while maintaining outstanding stretching and flattening repeatability.
To begin the manufacturing process of these enormous fabrications, certified A36 grade steel plates, ranging in thickness from 2” through 8” were purchased from local steel warehouses and domestic steel mills. The plates were cut to size, with precision tolerances, on J & J Burning’s state of the art oxy fuel and plasma cutting systems. When the burned parts and structural steel details were ready, skilled craftsmen, known as Fitters, assembled the jobs per the customer’s specifications. Once the assemblies were complete, the Base and Top Housing went through a tightly controlled weld conditioning process, called “stress relief”. The weldments were loaded into furnaces set to 1,100 degrees Fahrenheit for a ten-hour cycle. A slow cooling process followed to complete the removal of stresses in all welds. After that, the fabrications were shot-blasted to clean the steel to a near white condition, which is an ideal surface for painting. The final painting of both parts was completed in our 40’ Devilbiss paint booth.
When the custom steel specialty components were completely inspected and ready to ship, they had a combined weight of more than 250,000 pounds.
We pride ourselves on being part of an elite group of large capacity metal fabricators in the United States that is able to successfully manufacture parts of this size. We have the experienced workforce and high quality standards that are required to meet the exacting standards of customers throughout the country.
base

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