New Specification for "Pallet Rack"
Column:Industry News Time:2018-05-22
The new "pallet racking" standard is divided into 13 chapters. The listed terms cover all aspects of shelf production, acceptance and use.

The  first chapter strictly defined the scope of application of the  standard, and pointed out that this standard applies to prefabricated  shelves that use forklifts as the main storage tray unit goods, but does  not include automatic storage warehouses with rail stacker cranes as  the main storage tray unit goods. Use shelves.
    The  second chapter is "Normative References," which lists the names and  codes of a large number of related technical standards referred to in  this standard, making the standards traceable and authoritative, and  conducive to the use of standards by users of standards. Content is queried based on the referenced file.
    The third chapter regulates and explains the terminology of the components of the shelf. The  main components such as the opposing columns, beams and other safety  devices such as foot protection, rear gear, protective net, crash bar,  gantry pull rod, etc., as well as parameters such as goods, cargo  spaces, columns, rows, and column distances, were all made. Specification and interpretation. The  definition of these parameters makes the communication and  communication among shelves production companies, production companies  and users more accurate and convenient.
    Chapter IV specifies the form, grade and load of the shelves. The  standard divides the form of the pallet shelf into two types:  single-row and double-row. These two types of structures have fully met  the user's requirements for use of pallet racks. Regarding  the shelf level, it is classified according to the allowable deflection  of the beam and divided into A and B categories. The  clear definition of the rack load rating and maximum load, as well as  the application of specific calculation methods, add another dimension  to this standard, which is to provide designers and customers with  methods for shelf design and safe use.
    The fifth chapter is material. The  material has a decisive influence on the quality of the shelf.  Therefore, the standard accurately stipulates the three types of  materials used for shelf production—structure materials, welding  materials, and connector materials, and for the first time, the shelf  load-bearing components for low-temperature environments. The material made clear requirements. On  this basis, the standard also specifies the welding material at the  same time, which makes the guidance of this standard more meaningful and  the rigor of the standard is reflected here. The  connection material is easily overlooked in the shelf product, and the  standard also makes a request for it, which has the guiding significance  for the shelf enterprise to regulate the rational use of the material.
    The  structure is the most important aspect of pallet racks distinguishing  from other forms of shelves, and Chapter 6 makes this requirement. After  many years of improvement, the pallet rack structure has gradually been  formed, especially in the adjustment of the pitch and the foot  connection. Most  of the major domestic companies in the production of pallet racking  adjustment pitch most of the use of 50mm, 75mm or 100mm, this standard  was drafted in the early stages of extensive solicitation of domestic  major production companies and representative of the use of the views of  the majority of manufacturers With the approval of users, it can play a beneficial role in standardizing production of shelves.
    The seventh chapter is the shelf size. The  main contents include effective column spacing, effective layer  spacing, depth, height above the plane of the uppermost beam, and  allowable difference. These parameters are one of the highlights of this  standard. It is a basic requirement that the shelf can achieve  interchangeability after the implementation of standards. It is of great significance that some shelf members reach the final general degree. Its  parameters are expressed in the form of formula calculations or tables,  making it easier for users to read these terms and play a beneficial  role in implementing the standards in a wider range. The  shelf production enterprises are required to design and produce shelves  in accordance with the requirements of this standard, which will  certainly be conducive to large-scale production and interchangeability.
    The  strength, stiffness and stability requirements are the design basis for  guaranteeing the shelf quality and safety. It is an important content  of this standard and has been standardized in Chapter 8. This  chapter puts specific requirements on the structure of the shelf and  the size of the main components, the position of the force, and the  stress, so that this standard is more instructive and practical at the  shelf design stage. In  this chapter, the horizontal force specification mainly complies with  China's earthquake-related regulations. For example, the seismic  fortification intensity level refers to GB50223-95 “Code for Seismic  Design of Buildings” and GB50011-2001 “Code for Seismic Design of  Buildings”. The  references here provide some of the original basis for shelf design,  allowing designers to understand the source of some of the design data  while referring to this standard.
    Spraying is a key process for shelf production, and Chapter 9 makes clear provisions for spray quality requirements. As  the mainstream of the current shelf surface treatment method is powder  electrostatic spraying, this chapter stipulates the electrostatic  spraying operation method and quality requirements, especially the  coating defects. At the end of this chapter, it also makes clear requirements for other coating processes.
    Testing  is a method to judge whether a product is qualified or not. The tenth  chapter of the standard describes in detail the relevant detection  methods for shelf products, which mainly include the detection of the  deflection of the beam under vertical load, the detection of the  displacement of the column and beam joint under horizontal load, and the  paint. Membrane  detection, detailed introduction and stipulation of operation steps and  specific methods, and provisions for the method of value determination  and determination of test results.
    The content of chapter XI is inspection rules. The  inspection is divided into two kinds: factory inspection and type  inspection. This chapter separately specifies the factory inspection and  type inspection, and fully explains the principles of the determination  of when to inspect, how to inspect, and the inspection.
    The  contents of the twelfth chapter of the specification are the product  identification of the pallet shelf. The method of identifying the  product includes the shelf name or code name, structure type, grade,  size parameters, and load capacity parameters.
    The  thirteenth chapter stipulates the placement of the display signs, the  area of the signs, and the specific items that should be marked in the  signage, which will help the users of the shelves and their safe use.
It  should be pointed out that there are still some deficiencies in this  standard. For example, the calculation part of the standard is still not  standard enough, and it lacks the verification of the shelf inspection  platform. There are not many scientific research institutions and  related universities involved in the standard formulation process and  there is not enough theory. Support, etc., will find problems during implementation so that they can be better improved in the future.