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Difference Between Process Capability and Machine Capability

Process Capability vs Machine Capability

Process capability and machine capability are two completely different areas. Process capability is more for products and production process while machine capability refers more to machines as the focus.

Process capability is a statistical movement and an evaluation of a product and its production. The goal of process capability is to know if a product and its manufacture can be possible or sustainable. Process capability is heavily reliant on data, specifically graphical data, which can be input into specialized software that tracks the progress of the product from the product plan to delivery stage. The software creates data from the input with controlled conditions and variables in a 24-hour time frame.

Most of all, process capability is a tool for decision making. A product can be evaluated or cleared for the production stage, can be subject to various modifications, or be cancelled for production.

The variables that affect process capability are:

The machinery
Quality of raw materials
Labor and personnel
Production environment

The variables measured by this process are the following:

The effectiveness and efficiency of the process.
Quality of the product.
Costs and profits for business purposes.

A product starts as a product plan or proposal wherein the client makes a particular product. The client tries to build the product according to its specifications and sends it to a project engineer who will perform the trial study and the process capability tests. After the testing, a product evaluation is done if the product is feasible for mass reproduction and manufacturing. If not, the product can undergo revisions or cancellation.

The process capabilities also help determine the final price on the product, and it can extend its examination to packaging and delivery stages of the product. A process capability can include batch tests, a process where it examines varieties between products.

Meanwhile, machine capability refers to the capacity parameters of a certain piece of machinery. The parameters include the amount of load or raw materials, the maximum output of the machine, the machine’s speed of production, the length of time between services. The most important capacity in any machine is the production speed because businesses by extension want machines to operate in doing all tasks in the least possible time. Any lag in speed will affect the production line.

Manufacturers of machines usually list all of a particular machine’s capabilities in the user manual, but it is also prudent to check with a third-party machine capability test in order to have the best quality machine for a job. Another benefit of a third-party inspection is to reveal the real capabilities of the machine and to detect mechanisms that can prevent future and potential problems. Machine capability can be enhanced by machine accessories and alternate parts.


1.Process capability focuses on the whole process of delivering a product from conception to delivery routes while machine capability centers on the machine and its ability to deliver in the production process.
2.Process capability is basically an evaluation of any product or its process while machine capability is the same; it just centers on a particular machine.
3.Process capability can be determined by using specialized software while machine capability is determined by its manufacturer or a third-party evaluator.
4.Process capability is heavily reliant on data while machine capability is dependent on performance.
5.Process capability is not biased while machine capability can be biased especially on the part of the machine’s manufacturer.
6.Process capability is part of a product stage development while machine capability is part of the evaluation for buying purposes.

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