Medium-sized shelves medium shelf, is a shelf type shelf storage shelves. It is based on carrying capacity to distinguish between the shelf and named. In accordance with the principles of this division between light shelves medium-shelf and heavy shelves, medium shelf named. Typically shelf carrying 150kg / -600kg layer (shelf load carrying capacity of the vast majority is calculated in units of layers). Shelf structure: 1, Rack column is dedicated by the roll forming unit roll-formed from cold rolled steel, double-column front punch holes aligned hole distance of 50mm from the edge of the post hole to mount the beam with; two column relative, the middle lateral connecting pipe connected with the tilt tube two column uprights shelves assembled piece. 2, shelf beams using "P" type of pipe, commonly known as "ladder beam", the height of the step height and laminates match. 3, shelf steel plate adopt a cold-rolled steel bending and forming the desired size four sides. 4, beams and columns sheet attached to the frame assembly, and finally the laying of steel plate, thus a complete set of medium shelf molding. 5, after the shelves all the parts working well polished molding, pickling, phosphate, automatic powder coating, drying, etc. Process assembly of finished products. Produce shelves finished surface clean and beautiful; shelf layer can be adjusted up and down depending on 50mm pitch, easy disassembly. Main frame and sub-frame: medium-sized shelves are assembled from columns, beams, laminates made, there is a separate set of two columns, so the shelves is called the main frame. If several groups assembled into one, then in addition to the first group needs two columns, the other can share it in front of a group of a column, this is called the sub-frame shelves. This section both space and can reduce costs, strong performance than solid, the storage capacity of a single group is also greatly improved. If you frequently move the shelf to recommend full use of the main frame. Shelf main sub-frame connections must move along the main frame. Main frame: two column (a column: two columns plus a few horizontal pull-stayed) beam (A layer to have two beams) Laminates (. Laminates are placed on top of two beams) sub-frame: a column (a column: two columns plus a few horizontal pull-stayed) beam (A layer to have two beams) Laminates (. laminates are placed on top of two beams) of different types of shelves with different hole type, in order to mount the beam. Commonly used in today's market there pass, trapezoidal holes, butterfly hole, diamond hole, bean sprouts holes, holes and other character pass. Specifically pass does not specify what kind of performance standards, most manufacturers take each pass according to their production process. For medium-sized shelves, the market is more use of a trapezoidal hole and butterfly hole, the North is the most common butterfly hole punching easy, nice, but also to customers for the second extension. South manufacturers also use their own unique pass, so customers transform shelves then it must rely on its manufacturers. Medium-sized shelves mainly adapted to store goods warehouse light, medium shelf load of 200-500kg each product quality assurance products are made of Baosteel raw materials, through cold working is made, internal quality, appearance, bearing properties are very advantageous; Product design, manufacture, installation, commissioning and acceptance follow European standards, product rigidity and strength are in line with the Ministry of Machinery Industry Standard GB / T5323-91; product design, manufacture, installation, commissioning and acceptance follow European standards, product rigidity and strength are in line with the Ministry of Machinery Industry Standard GB / T5323-91; product from the manufacturer all sections are self-designed automatic roll forming unit rolling from, you can own length according to customer demand, the error is less than 1 mm, by the corresponding detectors Check equipment and instruments. Products weld welding reference to national standards to ensure that no sealing off, Weld phenomenon, welding parts are supplemented by artificial to slag, grinding and inspection to ensure the smooth and beautiful weld quality and weld. Product surface after immersion tank before treatment and in advanced high-voltage electrostatic spraying line is completed, the plastic powder as Aso epoxy powder coating thickness of 60-80 microns, and quality in line with GB9628 standard requirements. Company products in strict accordance with IS09001: 2000 quality system operation, product quality has been fully guaranteed. Regular quality after-sales tracking, life-long maintenance.