Determining the optimum replacement period for equipment is usually based primarily on the economic life of the equipment. (Correct)
Economic life is the life of equipment where the cost of using the equipment is within reasonable limits. In the latter part of the material life of the equipment, losses due to frequent equipment failures increase dramatically.
After the acquisition of equipment, the more years it is used, the less investment is apportioned each year, while the cost of maintenance and operation of the equipment increases. In the most suitable years of use in the lowest total cost of equipment, this is the meaning of economic life. The economic life of the calculation for example for the static and dynamic calculation of two kinds.
Equipment:
Equipment (Capital Items) refers to industrial products used by industrial buyers in the production process, including fixed equipment and auxiliary equipment. Fixed equipment includes all buildings (factories, offices), fixed equipment is the main equipment, the purchase or construction process is subject to a long decision-making process.
Equipment has general equipment, special equipment, general equipment, including machinery and equipment, electrical equipment, special equipment, office equipment, transportation vehicles, instrumentation, computers and network equipment, etc., special equipment, including special equipment for mining, chemical special equipment, special equipment for aerospace, special equipment for public security and fire fighting, etc..
Difference between equipment spare parts and other materials:
In order to facilitate the management and reduce the spare parts reserve funds, the following materials are usually not included in the scope of spare parts, in practice, pay attention to the difference between spare parts and these materials.
1, the difference between spare parts and low-value consumables: often used in the process of equipment maintenance of standard fasteners, connecting rods, hand ball, oil cup, oil markers, paper pads, felt, insulating cloth tape, fuses, low-pressure rubber tubing, etc., do not belong to the spare parts, but as a low-value consumables stored in the auxiliary materials storehouse or tool room, according to the actual need for amortization of the claim.
2, the difference between spare parts and materials: in order to shorten the parts processing cycle, must reserve a certain number of castings, forgings, copper rods, aluminum rods, tempered steel, etc., which belong to the material, in the blanks library, materials library or spare parts blanks inventory put management, generally does not take up the spare parts spare funds.
3, the difference between spare parts and tools and equipment accessories: equipment with product specifications and process changes and replacement parts, such as chuck, chuck, indexing head, grinding wheel, blades, cutter bars, rotary table, vise, etc. do not belong to the spare parts, should be managed as tools and equipment accessories.