Bridge Cranes in Demand

In a recent feature article, “Hoist Magazine,” the only international magazine with news and information focused on overhead cranes and industrial lifting equipment, highlighted bridge cranes. Titled “Steading the ship,” the feature article assessed the “demand for overhead lifting equipment in U.S. shipyards.”

Therein, the Department of Transportation’s American Recovery and Reinvestment Act (ARRA) was put under the spotlight. In particular, the act’s Small Shipyard Grants Program is setting aside up to “75% in ARRA funds” to improve small shipyards. Having to invest only 25% of the total cost, shipyards are taking advantage of this funding en masse. And one of the main ways in which they’re doing so is with overhead bridge cranes.

As one expert in the article pointed out, “The majority of overhead material handling products in shipyards are overhead cranes on rails,” primary among them being bridge cranes. The newfound demand for these cranes is good news for manufacturers and distributors of shipyard cranes.

The cranes that are suddenly experiencing such a resurgence at shipyards come in two varieties-ceiling mounted and floor supported-to handle even the most challenging overhead lifting requirements. The former cranes are an ideal solution for both indoor and outdoor situations in which support structures may interfere with lifting operations. On the downside, they require a building with an adequate overhead structure to hang the crane This is in contrast to the latter floor supported (aka free standing) cranes, which do not put stress on a building’s overhead structure, but do require a reinforced concrete floor of at least six inches.

What sets bridge cranes apart from jib cranes is that they cover rectangular areas-the shape of most shipyards-as opposed to circular areas. Once properly installed by a bridge crane specialist, they’re easy to operate and provide a full range of movement.

Installation by a specialist is paramount to the system’s safe and efficient operation. An expert in material handling equipment will ensure the customer’s utmost satisfaction with the right crane to get the job done properly. A reputable crane specialist will also carry only high-quality equipment and offer a full range of related services included with the purchase price of a bridge crane system. These tie-in offerings include process evaluation and analysis to determine the right equipment, engineering and design, project management, start-up assistance and training, and complete installation and service.

Shipyards aren’t the only industry putting bridge cranes to good use these days. In a related article title “Metal on metal,” “Hoist Magazine” spoke to several suppliers and users of overhead lifting equipment in the U.S. plating and galvanising industries. One such source highlighted its use of bridge cranes over its process tanks. The cranes provide the galvanizing specialist with a viable option to hoists and monorails.

Other popular uses for bridge cranes include any application that requires hoist coverage over a rectangular area, like a manufacturing bay. They enable the positioning of a hoist at any point within the rectangle, thereby permitting lifting, lowering and transportation throughout the area.

Steel Fabrication and Its Impact on China’s Growth

Steel fabrication is a manufacturing process that involves the combination of several raw materials to construct sturdy, reliable equipment, buildings, and factories. For over a century, this industry has worked to make a quality product that provides efficient material for construction projects, automobile manufacturing and other machine production. The result is one of growth and a revolution of the way society goes about its daily business. Metal restructuring is also a vital part of the bridge building industry. Even though it would be hard to put an actual value of its contribution, an estimated value of the fabrication industry is possible. Over one million tons of steel has been fabricated over the past twenty years. As a versatile product, it is used in both commercial and industrial settings.

China is one of the leading countries providing this service and uses iron ore as its feeder supply. The sheer population of China makes the demand for construction materials high. The use of iron ore for steel fabrication has declined sharply in the United States as new refining technology has taken over. However, China still produces most of its material with coking processes and requires it. This has led to a recent proposal to buy into the Roy Hill mining project in Western Australia.

Branching out towards this project places China in a position to receive nearly one and a half million tons of iron ore each year. It anticipates the Roy Hill site to be under operation by 2014 and at full operation sometime in 2015. About 98 percent of extracted iron ore is used for steel fabrication. It requires nearly three tons of the ore to produce one ton of steel. Steel is in strong demand for all types of construction. It is easy to see why countries facing a heavy quantity of building allocate sizable amounts of investments to the success of the industry.

As countries worldwide continue to fight for resource availability, China has come up with a way to make the production and use of fabricated metal affordable and profitable. Recent change in the pricing of ore has driven other countries to follow China’s lead and purchase iron ore on a daily spot price. Previous sales reflected an annual basis with a change to quarterly pricing and uncertainty. Although concern about the effect on a high demand market exists, there is no sign of slowing from industry leaders.

Steel fabrication involves bending, cutting, or assembling the metal into shapes easily used by the masses. Once done by blacksmiths, tools and technology have changed the process somewhat. Sometimes a hammer and heat source is still all that is required. The tools depend upon the item being crafted, since steel is a very precise art. Poorly tempered steel is subject to structural weakness, devastating in the construction of buildings and bridges.

Industry wide standards help maintain the credibility and continued presence of steel manufacturers. Each country has its own standards, usually consistent from region to region. It is good to know that steel fabrication used for houses we live in, bridges we drive over, and buildings we work in must meet these standards.

General Information on TIG and MIG Welders

There are many processes in manufacturing, and one of which include welding, this process is a very important process at the same time it involves a lot of risk, so all the essential precautionary measures has to be taken for safe welding. Welding seems to be a simple process which just joins two materials together using a series of heat or pressure, but it is not so, it’s a very dangerous process. Welder equipments are used to link two metals, which are generally used in the production of automobiles, bridges, buildings, air craft’s, trains and so on. Manufacturing industry understood the importance of welding and introduced all the latest technology in welding in order to improve the standards of welding.

There are various types of process, each one is used for different purposes and each has its own advantages and disadvantages. Some of the welding methods are arc welding, TIG, MIG and plasma cutting.TIG is the short form of gas tungsten metal arc, in this type of tungsten electrode is used to produce the weld, where thin sections of stainless steel and non ferrous metals can be welded. Whereas in MIG aluminum and non ferrous materials can be welded, MIG is an automatic process which is mostly preferred for its speed and adaptability. Plasma arc uses plasma gas and has slender diffusion with better energy concentration.

MIG WELDING EQUIPMENT

MIG is a very simple way of welding, but it needs a lot of good practice to carry out such kind of welding, with all the essential tools and proper experience, one can perform the best quality welds at ease with the help of MIG welding machines.

They are typically used to link aluminum and other metals, generally softer metals. MIG welding is used where high flow of power is not required and the sheets to weld are of around one eight of an inch thickness, if you want to weld thicker sheets you can use something with higher voltage.

These equipments are obtained in various sizes and different voltages. MIG is well known for its quality performance, and is priced cost effectively as well.

TIG WELDING EQUIPMENT

The short form TIG stands for tungsten inert gas. In TIG, it’s important to set up a good electrical contact between the tungsten and collet. This way, current transfer and weld quality can be better. TIG welding is one of the finest techniques for welding and manipulating aluminum, though TIG welding is incredibly high priced. One of the major advantages to a TIG welder is its elevated amperage which helps greater thickness of metal to be welded, amongst other advantages relating to the purity of the metal, cleaning etc., even this is considered.