Performance

Losses due to reduced production speeds

Performance Losses

Performance losses occur when a machine does not produce at its maximum possible speed. Simply put, it's the extra time required because production did not run at full theoretical performance.

Example

For Product A, the maximum performance is 300 kg/h. During the last production run, however, only 250 kg/h was achieved on average. Important: The average performance refers only to productive time—i.e., periods without downtime. Downtimes do not influence the average speed and therefore do not affect the performance value.

A total of 3,000 kg needs to be produced for the order.

1. Production time at maximum performance:

$$\text{Production Time at Max Performance} = \frac{3000kg}{300 \frac{kg}{h}} = 10h$$

1. Actual production time at average speed of 250 kg/h:

$$\text{Actual Production Time} = \frac{3000kg}{250 \frac{kg}{h}} = 12h$$

1. Performance Loss:

$$\text{Performance Loss} = 12h-10h=2h$$

So, production took 2 hours longer than it would have at maximum speed.

Performance Factor

The performance factor indicates what percentage of the maximum performance was actually achieved.

$$\text{Performanc Factor} = \frac{\text{Actual Performance}}{\text{Maximum Performance}} = \frac{250 \frac{kg}{h}}{300 \frac{kg}{h}} = 83,3\%$$

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What is “Maximum Performance”? In this example, a fixed value was used for the maximum performance. In practice, however, the definition of “maximum possible performance” is often a subject of discussion—especially in continuous manufacturing processes.

A well-founded and consistent definition is crucial to accurately analyze and compare performance losses.

Automatic Performance Tracking with ENLYZE

ENLYZE can calculate the performance of each order, machine, or site. To accomplish this, two requirements need to be fulfilled:

• Performance Configuration: should be defined for each machine so that we know which parameter needs to be used to measure performance.

• Booking Data: with orders and products running at the machine must be synchronized within ENLYZE to apply the correct performance thresholds every time.