Options In Large And Small Lead Counterweights...

Counterweights are used in a wide variety of different applications. They can be used as bridge weights as well as in elevator systems. They can be used in agricultural equipment, heavy equipment such as cranes and lifts as well as in architectural designs. A counterweight is used to offset the opposing weight and to create a balance. It also provides stability for a system, allowing for a part or component to remain in a particular position relative to the rest of the system. Lead, with its heavy, dense nature is a perfect counterweight material. With different options in lead counterweights, it is possible to create the ideal system to safely operate equipment, bridges, elevators or to create a stable balance. Standard Sizes Most companies manufacturing lead counterweights for bridges use a standard size of weight. These bridge weights are typically 150 pounds each and can be stacked or used in the design of the bridge to offer the desired amount of counterweight. Not all bridges or applications are configured for these standard weights, so other options are available. Custom Designed Cast Counterweights Finding a lead manufacturer offering custom cast or custom poured lead ballasts and counterweights allows for the design and production of a counterweight that is customized to the specific requirements of the application. This includes oversized requirements for counterweights or for smaller lead counterweights that have to fit into very specific spaces in the equipment or system design. Shot Ballast In some applications, the best option for a counterweight is not a solid weight. This is important for both heavy and light applications and allows for lead shot to be used in specially designed, heavy-duty bags. These bags can be lowered into a space, and the lead shot then levels out, filling...

Careful Selection In A Telescopic Cylinder Jan10

Careful Selection In A Telescopic Cylinder...

One of the limitations of standard types of hydraulic cylinders is the limit of the stroke or the extension of the rod from the cylinder. In standard cylinders, the length of the stock is less than the overall length of the cylinder body, which creates a problem when longer extensions are required. To work around this limitation, telescopic cylinders use stages or sections that fit into each other when retracted and that lift out from each other when extended. This allows the overall stroke length to extended significantly, adding the desired height or length for lifting types of applications. Considerations With a standard cylinder, it is important to ensure the load capacity of the cylinder is not exceeded to extend the life of the system. With telescopic cylinders, lifting or pushing at overloaded capacity can result in bending and twisting of the stages, creating provides in retracting the stages and seating back into the cylinder. The length of the cylinder and the number of stages is always an important consideration in the design. The stages are larger at the base and become smaller at the top, which is an essential component in the design process. Most of these types of cylinders are designed with six or fewer stages, but it is possible to increase the number of stages with some specific design options. The most common types of telescopic cylinders are single acting. These cylinders operate as the pressure from the hydraulic port at the bottom extends the stages. The removal of the pressure by the equipment operator allows the stages to retract from the weight on the equipment (gravity) and the loss of pressure. There are also double-acting telescoping cylinders. As these are more complex to design and require additional seals and configurations...

The Three Components Of A Stud Welding Machine Jan10

The Three Components Of A Stud Welding Machine...

While some welding systems are designed as one unit, a stud welding machine, either a capacitor discharge (CD) or a drawn arc system, is made up of three parts. This offers several advantages to customize or change different components, making the system more versatile and flexible in handling all type of stud weld jobs. It is important to keep in mind that CD and drawn arc systems use different technologies and parts and components cannot be mixed and matched between the system. Most CD stud weld equipment can operate either for contact or gap welding, but it is important to check this with the manufacturer before making an incorrect assumption. The Power Source The power source is more than just power for the handheld tool. It is the control system to allow the operator to configure specs for the specific job at hand. New technology in many of these stud welding machine models provides a greater number of features and functions to make on-the-job adjustments quick and easy. Look for systems with built-in maintenance trackers, prompting the operator to complete required maintenance after a specific number of welds has been completed. Other features on drawn arc system such as hammer mode to clear the surface of rust and paint is a great feature to consider. Cables Both ground and extension cables are also important for optimal and safe operation of equipment. This becomes even more important on outdoor jobs or when the system is portable and not permanently mounted with cables run to workstations. Handheld Tools Handheld tools for a stud welding machine of any type should be ergonomic and comfortable for the operator. They should be designed with a gentle trigger pull and to be lightweight and compact, allowing them to be used...

Top Signs You Need A St. Paul Workers’ Compensation Attorney Jan09

Top Signs You Need A St. Paul Workers’ Compensation Attorney...

In many cases, employees that are injured on the job with very mild injuries where there is no long-term disability, or significant medical expenses do not need the services of a workers’ compensation attorney in St. Paul. All the employee needs to do is submit the required notification of the injury to the employer in the stipulated time and file the claim paperwork. The vast majority of employers are very fair about providing their employees with the compensation due after a claim. However, there are some telltale signs employees in St. Paul needs to be aware of that signal the need for a workers’ compensation attorney. IME Concerns In Minnesota, an IME or independent medical examination can be requested by an employer or an insurer. This is a stipulated doctor who examines the injured individual. If the IME has a different result than the doctor treating you for the injury, contacting a workers’ compensation attorney is important immediately. Many businesses and insurers have a reputation for using specific doctors to deny claims. By working with an experienced attorney, the correct evidence can be provided to offset these types of issues. Past History of Problems Typically, employers that fight these types of claims or refuse to cover all the medical costs in an accident or injury have a reputation for this type of behavior. If coworkers provide you with this information, or you know about it personally, talk to a lawyer before filing the claim. Slow or No Payments There are very specific deadlines and timelines for notifying the employer of the injury, filing the workers’ compensation claim, for the employer to notify the insurance company and for the insurance company to pay. If there is a delay in the process or you are not...

When To Consider A Plastic Ball Valve...

As a quarter-turn valve to control the flow of media through a system, the ball valve is an effective way to both turn on and off the flow as well as to quickly visually check the position of the valve. This is particularly true with the lever types of ball valves where the position of the lever in relationship with the inlet and outlet port provides a clear visual confirmation that the valve is either on or off. In addition, with the need for just a ninety-degree turn, this is a very quick valve to operate. While it does not allow for refined control of the flow of the media, this is not the intended use of valve and therefore is not a consideration when choosing this valve type. The Plastic Advantage There are many different options in plastic ball valve models. The most common plastics used include nylon, PVC (polyvinyl chloride), ABS (acrylonitrile butadiene styrene) or epoxy resins. All of these options in materials can be used to create a plastic ball valve that is resistant to chemicals, resistant to corrosion and highly durable in a wide range of different applications. Plastic is also a much lighter weight material than brass or stainless steel, which makes it a top consideration with a smaller system and smaller tubes and piping. These valves are often designed to meet the miniature or mini-valve needs, which are usually defined as those valves that are one inch and less in size. A plastic ball valve can operate on a regular basis, or be left in the open or closed position for extended periods of time. With the durability and resistance of the valve, they do not require any maintenance and very rarely need to be replaced under normal...