Structure characteristics and application range of various racking systems and selection principle
1. shelf rack. Shelf rack usually for manual access mode, assembly-type structure, uniform spacing can be adjusted, the goods are often not very heavy parts or packaged items (for manual access), height of the shelve is usually below 2.5M, or artificial reach (such as auxiliary to climb can be set in 3M). The unit shelve span (length) should not be too long, unit rack depth (width) should not be too dark, press the unit shelve the loading capacity of each layer can be divided into light, medium and heavy shelf rack, laminates are mainly for steel plates, wood laminate two kinds. (1) light shelf rack: units per layer shelf load capacity is not more than 200kg, the total carrying capacity is not more than 2000kg. The unit shelve span is usually less than 2m, depth is not more than 1M (0.6m), high 3M, common for angle steel type post shelve structure, the appearance of lightweight, beautiful, mainly suitable for storing light and small items. Less money, are widely used in industries such as electronics, light industry, culture and education. (2) medium shelf rack: units per layer shelf load should generally be between 200~800 kg, the total bearing capacity is not more than 5000kg. The unit shelve span is usually less than 2.6m, depth is not greater than 1M, generally in less than 3M. If the unit shelve span, in 2m, the layers contained within 500kg, usually selected non-beam type medium shelf rack is suitable if the unit shelve span is above 2m, you generally only have medium shelf rack beam. Medium shelf beam and beam-free medium shelf than spacing can be adjusted a lot more, strong, beautiful, better coordination with the environment more suitable warehouse with high cleanliness requirements; medium shelf rack beam characteristics of industrialization a few stronger, more suitable for storage of metal structure products. Medium shelf rack is widely applied in many fields. (3) heavy put plate shelf: unit shelf each layer load usually in 500~1500kg Zhijian, unit shelf span General in 3M within, depth in 1.2m within, height unlimited, and usually is and heavy tray type shelf phase combined, and phase coexist, following several layer for put plate, artificial access job, height in 2m above of part usually for tray type shelf, using forklift for access job. Which needs zhengtuo is mainly used for access and save zero zero takes in a large warehouse-style supermarkets and Logistics Centre was seen.
2. pallet racks pallet racks, also commonly known as racking, or shelf, rack, usually racking, storage shelf system is the most common in the country. First must for set loaded unit of work, is goods packaging and weight, characteristics for group disc, determine tray of type, and specifications, and size, and ask only the contains weight and heap high (ask only the goods weight General in 2000kg within), then which determine unit shelf of span, and depth, and layer spacing, according to warehouse roof trusses Xia along of effective height and forklift of maximum fork high decided shelf of height. The unit shelve span, generally within 4m, 1.5M deep, low, high warehouse racking height in 12m, super high warehouse racking height is less than 30m (such warehouses is automated warehouse and shelves total height consists of several 12m columns). Such warehouses, mostly in the low, high warehouse before moving type storage battery forklift truck, balance storage battery forklift truck, forklift, three to access jobs, a lower shelf can also be used when the electric stacker, super high access by stacker warehouse operation. This kind of shelve systematic space utilization high, flexible and convenient access, supplemented by computer management or control, and can basically meet the requirements of a modern logistics system. Widely used in fields such as manufacturing, logistics and distribution center, both applied to producing small quantities of goods, also suitable for large quantities and few varieties goods. This kind of shelve of most high warehouse and application of ultra high storage (automatic warehouse shelves are mostly used in this kind of shelve). 3. drive-in racking through rack-also known as corridor racks, drive-in racking. Shelf configuration on this system-intensive space utilization ratio is extremely high, almost twice times the tray type shelve, but must be large quantities and few varieties goods, goods have been advanced. Set the first unit of work, determine the specifications, the load of the tray and pile high. Determine the unit shelve span, depth, spacing, according to the roof trusses along height determine the height of the shelves. By wall regional of shelf total depth best control in 6 a tray depth within, Middle regional can on both sides access of shelf regional total depth best control in 12 a tray depth within, to improve forklift access of efficiency and reliability (this class shelf system in the, forklift for continued "banner high playing" job way, forklift easy shaking and hit shelf, so stability of consider full or not vital). Stability of this type of storage system is weak, the shelve should not be too high, should normally be controlled within 10m, and in order to strengthen the stability of the whole system, apart from the specifications, the selection was great, and also subject to the securing devices. Ask only the goods should not be too big, too heavy, usually weight control in 1500kg, the pallets span should not be greater than 1.5M. Often before moving type storage battery forklift truck or forklift truck balance storage battery forklift truck. Used for dairy products, beverages, food industry, freezer is more common. 4. gravity type shelf gravity type shelf by tray type shelf evolution and into, used Roller Type track or end of round type tray, track is must slope (3 ° around), using goods of weight, achieved goods of advanced first out, side into another side out, applies Yu large volume, and similar goods of advanced first out storage job, space utilization is high, especially applies Yu has must warranty period, and should not be long-term backlog of goods. Total depth of the shelf (the Guide length) should not be too large, do not use the up and down "dead" will be larger, space utilization, and the ramp is too long, and controllability of the decline may be slow, downward momentum is large, easy slide jam, block, tilting of the pallet. Falling to make smooth, such as a long ramp, you should add damping device in the Middle, for the pallet fell to the bottom without tipping due to impact too much, should be at the bottom of the ramp buffer device and fetch goods separate device, so difficult to design, manufacture, installation, and higher costs. This kind of shelve should not be too high, generally within 6m, ask only the weight of the goods is generally within 1000kg, its reliability and maneuverability is reduced. This kind of shelve of systems currently used in China is not very great. industries. Source:http://www.tiger-racking.com/
