During the initial stage of project construction, the issue of spare parts when purchasing equipment
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Regarding the early stage of project construction, the issue of spare parts when purchasing equipment: Is it required that each piece of equipment come with spare parts as part of its purchase? Should we wait until all the equipment has been purchased before buying spare parts collectively? For moving equipment, although items such as machine seals, bearings, and O-rings are standard components, manufacturers generally do not provide the model numbers for these spare parts (as most of them are purchased from external suppliers). If it is not required that these spare parts come included with the equipment, and the user has to arrange to purchase them separately, it is likely that there will be no model numbers available. For stationary equipment, bolts, nuts, gaskets, and flanges also belong to standard components, and all sizes of these are certainly available in the factory. Is it possible to omit these spare parts from the delivery and arrange to order them separately? There’s another issue: once these spare parts are purchased, how should they be stored in the warehouse? The model specifications of spare parts vary for each piece of equipment. Does that mean one spot in the warehouse is needed for each piece of equipment? How large would such a warehouse have to be?
There is a type called random spare parts, which come along with the equipment. There is also another option called two-year spare parts; you can ask the equipment manufacturer for a recommended list and purchase the parts later, but you need to take into account the delivery time, especially for spare parts of imported equipment
Doesn’t including debugging, commissioning, and two years of operation in the random spare parts cover it quite comprehensively?
Is it too much to keep spare parts in the warehouse for two years?
By the time the equipment has to stop operating due to a lack of spare parts for maintenance, it doesn’t seem like such a big problem anymore
If the budget permits, it is advisable to provide each moving device with spare parts as well as maintenance supplies for one year. Additional content will be added as appropriate later. Materials such as bolts, gaskets, valves, and various hardware items are purchased in one batch based on the specifications on site. As for storing spare parts, some shelves can be purchased to save space.
The random spare parts for pumps usually include only seal kits, with one set provided for each pump station; thus, the AB pumps come with 2 sets. Other spare parts such as O-rings require that a list be obtained from the manufacturer or that they be purchased after measurement, while the seals are ordered from a seal manufacturer after their specifications are determined. Centrifuges typically come with a set of spare parts, such as dry gas seals and bearings.
Generally, they are divided into random spare parts, driving spare parts, two-year spare parts, and accident spare parts. Random spare parts refer to those very critical and vulnerable components that the manufacturer provides as part of the technical agreement; there are usually few of them. It’s possible to request more, but since the cost of the equipment is low at the initial purchase stage, the manufacturer would suffer heavy losses if it provided too many such parts. Driving spare parts are additional parts that are acquired before or during operation, as a supplement to the standard spare parts. Due to contractual cost considerations, vulnerable components that are not included in the standard spare parts can be purchased at this time; the price of such spare parts may be higher than when they are bought as part of the standard set, as there is no other alternative. Two years’ worth of spare parts refer to those needed to maintain your equipment on a regular basis once you start using it – including spare parts required for routine inspection and repairs (not just wear and tear parts). The quantity of such parts is large, and their cost is very high; in fact, the cost of acquiring these spare parts can be higher than the cost of buying an entire device. This is when the equipment manufacturer can win the bid at a lower price and recoup its investment. In addition, spare parts for emergencies are also kept in stock for some large, critical equipment, such as turbine compressor rotors, large pump rotors, and impellers.
It mainly depends on how you negotiate the technical terms; if you offer more money, then things like mouth rings can be provided as well, haha.
As long as the right material is chosen for the mouth ring, there’s usually no problem; you get what you pay for, haha