Types of storage strategies
A good storage strategy can reduce the moving distance of warehousing and warehousing, shorten the operation time, and even make full use of storage space. There are five common storage strategies, and their advantages, disadvantages and usage principles are as follows:
(1) Locating storage
Each item of storage has its fixed storage space, and the storage space cannot be used between items, so when planning the storage space capacity of each item, it should not be less than its possible on-hand storage capacity. The reasons for choosing location storage are as follows:
1. The size and weight of the goods need to be considered in the arrangement of the cargo area.
2. When the goods have special requirements for storage conditions. If some items need temperature and humidity control.
3. Flammable and dangerous goods are restricted to be stored in special locations-meet the requirements of safety standards and laws and regulations.
4. The characteristics of some items are not allowed to be stored or mixed nearby. Such as biscuits and soap, food and medicine.
5. Some important or high-value items need to be stored separately.
6. The cargo area is easy to remember and pick up.
The advantages of locating storage are: each item has its fixed storage location, so it is easier for picking personnel to be familiar with the location of each item; The storage position of goods can be arranged according to the turnover rate (its best-selling degree), which can shorten the handling distance when entering and leaving the warehouse;
The disadvantage of locating storage is that the storage location must be designed according to the maximum quantity of each item on hand, which greatly increases the required storage space.
(2) Random storage
The storage location assigned to each item is generated through a random process and often changes. In other words, any item can be stored in any available location. If we can use the computer to assist the memory management of random storage and record the position of each item in the warehouse through the computer, we can use the computer to allocate the storage space of incoming goods.
The advantage of random storage is that the storage space needs to be designed according to the maximum inventory of all inventory items, because its storage location can be used. The utilization rate of storage space is high.
the disadvantage of immediate storage is that it is difficult to manage the goods in and out of the warehouse and take stock. Because it is not always possible to put the goods with high turnover rate near the entrance and exit, the distance between storage and transportation is increased.
(3) classified storage
All stored items are classified according to certain characteristics, and each type of items has a fixed storage location. Second, different items of the same type are assigned storage locations according to certain rules. Classified storage is usually classified according to product relevance, product fluidity, product size and weight, and product characteristics. Classification storage is more flexible than location storage, but it also has the same disadvantages as location storage.
advantages of classified storage: because each kind of goods can be assigned a designated storage area, which is convenient for the access of best-selling goods, it also has various advantages of location storage.
Disadvantages: The storage location must be designed according to the sum of the maximum on-hand quantity of each classified item. Therefore, the storage space utilization rate is lower than that of random storage mode, but higher than that of location storage mode.
Comprehensively evaluating the above three storage allocation strategies, their respective characteristics and application occasions are as follows:
Generally speaking, location storage is easy to manage, which requires less total handling time, but requires more storage space. This method is suitable for the storage of many kinds of small commodities with large warehouse space;
The random storage method is suitable for goods with limited warehouse space, which need to be used as much as possible, few types and large volume;
the classified storage method is more flexible than the positioning storage method, but it also has the same shortcomings as the positioning storage method. Therefore, it adapts to the situation that products are highly correlated, often ordered at the same time, and the turnover rate varies greatly.