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Utilized in different applications, leaf chains are regulated by ANSI. They could be utilized for lift truck masts, as balancers between heads and counterweight in some machine tools, and for tension linkage and low-speed pulling. Leaf chains are at times also known as Balance Chains.
Features and Construction
Leaf chains are steel chains with a simple pin construction and link plate. The chain number refers to the lacing of the links and the pitch. The chains have certain features like high tensile strength per section area, which enables the design of smaller machines. There are A- and B- kind chains in this particular series and both the AL6 and BL6 Series include the same pitch as RS60. Finally, these chains cannot be driven utilizing sprockets.
Selection and Handling
In roller chains, the link plates maintain a higher fatigue resistance due to the compressive stress of press fits, yet the leaf chain only contains two outer press fit plates. On the leaf chain, the maximum allowable tension is low and the tensile strength is high. When handling leaf chains it is important to consult the manufacturer's manual to be able to ensure the safety factor is outlined and utilize safety guards at all times. It is a great idea to exercise extreme care and use extra safety measures in functions wherein the consequences of chain failure are serious.
Higher tensile strength is a direct correlation to the utilization of more plates. In view of the fact that the use of much more plates does not improve the maximum allowable tension directly, the number of plates could be limited. The chains need frequent lubrication because the pins link directly on the plates, generating a very high bearing pressure. Making use of a SAE 30 or 40 machine oil is often advised for nearly all applications. If the chain is cycled over 1000 times each day or if the chain speed is over 30m for each minute, it will wear really fast, even with continuous lubrication. Hence, in either of these conditions utilizing RS Roller Chains would be a lot more suitable.
AL type chains are just to be utilized under certain situations like for example where there are no shock loads or when wear is not a big problem. Be certain that the number of cycles does not exceed one hundred every day. The BL-type would be better suited under various conditions.
The stress load in parts would become higher if a chain with a lower safety factor is chosen. If the chain is likewise utilized amongst corrosive situations, it can easily fatigue and break extremely quick. Performing regular maintenance is important when operating under these kinds of conditions.
The outer link or inner link kind of end link on the chain will determine the shape of the clevis. Clevis connectors or Clevis pins are constructed by manufacturers, but the user typically supplies the clevis. An improperly made clevis can reduce the working life of the chain. The strands must be finished to length by the producer. Refer to the ANSI standard or get in touch with the manufacturer.
In the new millennium, Skyjack was purchased by the Linamar Corporation, who is LNR on the TSX, a primary producer of modules, assemblies and precision-machined components. At present, Skyjack has production plants in United States, Canada and Hungary with extra support offices in Europe and Asia.
Skyjack became the leader in the industry of aerial lift machinery by combining features like for example durability, quality and serviceability, making their own scissor platform lifts recognized all over the word for product reliability and efficiency. Skyjack proudly manufactures a full line of self-propelled scissor hoists. Their elevated work heights reach about fifty six feet. The company`s existing Boom lift truck model series has telescopic booms ranging from 45 feet to 71 feet. Skyjack has plans to further extend their boom lift truck product line. The business remains a dominant player in the industry adjusting rapidly to the continually evolving needs of all of their customers.
Skyjack`s purchase of Carelift Equipment was completed in August of 2007. Most recently, their acquisition of Volvo`s Material Handling Equipment business expands Skyjack`s Telehandler product offering. The resulting Zoom Boom and VR series telehandlers along with the additional production ability further ensures the company`s growth and success.