The mobile crusher’s warehouse must stock four categories of essential spare parts in the specified quantities; only the number of impact plates may be reduced; stocks must be replenished every six months; electrical spare parts are not essential.
It is essential to keep at least four categories of spare parts in stock for the mobile crusher; all the categories listed are for engineering reference purposes.
This category mainly comprises toothed plates and impact plates; according to the engineering reference guide, the number of toothed plates to be kept in stock is two sets per mobile crusher.
These include the feeder belts and feeder support rollers; according to actual measurement data, the number of support rollers that need to be kept in stock is at least 8 per unit of equipment.
This group includes hydraulic cylinder seals and hydraulic oil filters; according to the manufacturers’ official specifications, the number of hydraulic oil filters that should be kept in stock is three per mobile crusher.
This includes drive belts and drive shaft bearings; according to the calculated figures, the number of drive belts to be kept in stock is one set per unit of equipment.
Spare part name, Mandatory stock quantity, Data type, Crushing chamber tooth plates, 2 sets, Engineering reference range, Crushing chamber deflector plates, 1 set, Engineering reference range, Feeder support rollers, 8 pieces, measured data, Feeder belts, 1 piece, measured data, Hydraulic oil filters, 3 pieces, official specifications, Hydraulic cylinder seals, 1 set, official specifications, Drive belts, 1 set, design values, Drive shaft bearings, 2 pieces, design values.
The first question is whether it is possible to reduce the quantity of spare parts held in stock. The answer, according to the engineering reference guidelines, is that only the quantity of reflector plates may be reduced to 0.5 sets; it is not recommended to reduce quantities in other categories without the supplier’s approval. The second question is: how often should the stock of mandatory spare parts be replenished? The answer, according to actual measurement data, is that the average replenishment cycle for all categories of mandatory spare parts is 6 months under standard equipment operating conditions. Third question: is it necessary to keep spare parts for the electrical equipment of a mobile crusher in stock? The answer, according to the manufacturers’ official specifications, is that spare parts for electrical equipment do not fall into the ‘mandatory’ category; whether they are kept in stock depends on the frequency of power cuts in the local electricity grid in the region where the equipment is operated.
