1, the formula for the equipment completion rate = the total number of intact equipment / production equipment × 100%.
2, Definition: equipment intact rate refers to the proportion of intact production equipment in all production equipment, is an important indicator to reflect the technical status of the enterprise equipment and evaluation of the level of equipment management.
3, the general standard of equipment intact is: good equipment performance, such as machining equipment to achieve the accuracy of the process requirements; normal operation of the equipment, such as wear and tear of parts, corrosion does not exceed the technical standards; raw materials, fuel, oil and other consumption is normal, no oil, water, steam, electricity leakage phenomenon.
4, an example of calculation:
Knowing that the total number of units of equipment 176 defective units 19 equipment intact rate calculation
Equipment intact rate = (176-19)/176*100% = 89.2045%.
Expanded:
Six evaluation indicators of equipment management:
1, Equipment intact rate.
2, equipment utilization rate:
Definition: equipment utilization rate refers to the actual use of equipment per year as a percentage of the planned use of time, refers to the efficiency of the use of equipment, reflecting the state of the equipment work and production efficiency of the technical and economic indicators.
Calculation formula 1: equipment utilization rate = hourly actual production / hourly theoretical production * 100%
Calculation formula 2: equipment utilization rate = (shift (days) the actual number of hours of power on )/shift (days) should be powered on the number of hours * 100%
Calculation formula 3: equipment utilization rate = the number of power on the moment of sampling / total number of equipment * 100%
3: equipment utilization rate = the number of sampling moment of power on the number of equipment * 100%
Calculation formula 2: equipment utilization rate = the number of hours of power on the number of hours of power on the total number of equipment * 100% < /p>
3.? Mean Time Between Failure (MTBF):
Definition: Mean Time Between Failure, Mean Time Between Failure in English, abbreviated as MTBF, refers to the evaluation time between two neighboring failures of a repairable product, and it is a measure of the reliability index of the product.
Calculation formula: MTBF=(∑? 〖(downtime-uptime)〗)/(failure times)
4, the average repair time of equipment (MTTR):
Definition: the average repair time of equipment, the full name of the English Mean Time To Restoration, abbreviated as MTTR, refers to the average repair time of the repairable products, that is, the time from the failure to repair. failure to repair the middle of this time.
MTTR includes the time necessary to confirm that a failure has occurred, as well as the time required for maintenance; and it also includes the time to obtain parts, the response time of the maintenance team, the time to document all tasks, and the time to put the equipment back into service. the shorter the MTTR, the better the ease of recovery.
5, the overall efficiency of the equipment (OEE):
Definition: the overall efficiency of the equipment, the full name of the English Overall Equipment Effectiveness, referred to as OEE, the essence of the actual qualified production and load time of the theoretical production ratio. Overall Equipment Effectiveness assessment of the core idea is: a production line of the actual available time only part of the planned operating time, which may only play a part of the nature of the equipment, and may only be part of the product is qualified.
Calculation formula: comprehensive efficiency of the equipment = time start rate × performance start rate × rate of qualified products × 100%
6, equipment failure rate:
Definition of a failure: If the failure frequency is the number of failures and equipment is the ratio of the actual number of hours to the actual start of the table (failure frequency = the number of failures to shut down the number of units of equipment actually started).
Definition two: if it is the failure downtime rate, it is the ratio of the failure downtime to the actual start-up of the equipment plus the failure downtime (failure downtime rate = failure downtime / (actual start-up of the equipment + failure downtime)).
Reference: