From watchmaking to modern high-pressure technology: This article explains what precision means in turned parts and why micrometres determine function and reliability.
When people think of precision today, they usually associate it with state-of-the-art CNC machines, highly automated manufacturing processes and digital metrology. In reality, however, the history of precision mechanics goes back much further. Its roots lie in an industry that depended on the highest possible level of accuracy centuries ago: watchmaking.
At that time, tiny gears, shafts and bearings determined the reliability of a watch movement. Even the smallest deviations could affect its timekeeping accuracy. This understanding of precision continues to shape the manufacture of precision components to this day.
Although the technologies have changed fundamentally, the standard remains the same: components must function precisely, be manufactured consistently and deliver reliable performance over the long term. You can find out more about the history of mesa parts on our company page.
Precision is about more than a simple dimensional specification. In addition to diameter and length, geometric and positional accuracy, roundness, cylindricity and surface quality also play a decisive role.
The tight tolerances that can be achieved in practice are illustrated particularly well by the following two manufacturing processes at mesa parts:
In hydraulic applications, precise control edges on pistons directly influence control response. Even the smallest clearances between pistons and cylinders affect efficiency, service life and leak-tightness.
Valve seats place particularly high demands on precision. Minimal deviations can result in leaks, wear or pressure losses. Magnetic assemblies must also generate maximum actuating force within the smallest possible installation space.
In all of these applications, the principle is the same: one micrometre too much or too little can determine whether a component functions reliably or fails.
The requirements placed on precision turned parts are constantly increasing. High-pressure technology, with operating pressures ranging from several hundred to 1,000 bar, places extreme demands on materials, geometries and surface finishes.
At the same time, continued miniaturization—for example in the automotive industry, medical technology, machinery and plant engineering—is driving precision requirements even further. In hydraulic and safety-critical applications, complete freedom from burrs is also indispensable.
Reliable precision begins with the right material selection and stable, well-coordinated processes. CNC single- and multi-spindle technologies form the technological foundation, complemented by finish turning, hard turning, grinding and honing.
Additional deburring technologies are used to achieve complete freedom from burrs, including thermal energy method deburring (TEM), electrochemical deburring (ECM) and high-pressure flushing.
Automated measurement and inspection systems, together with continuous process monitoring, ensure that this level of precision remains stable throughout an entire production run.
Modern machinery and metrology are essential—but precision cannot be achieved reliably without experience. Tool design, workholding concepts and the knowledge of the right process parameters have a significant impact on component quality.
At mesa parts, potential risks are identified during the technical evaluation and quotation phase rather than only once production is underway. Sales, engineering and production work closely together from the outset as part of the technical feasibility analysis.
Precision pays off—both economically and in terms of quality. It contributes to greater process reliability, less scrap and fewer customer complaints, longer component service life and lower overall costs throughout the product life cycle.
The focus is not on producing one perfect sample component. It is on achieving repeatable quality throughout the entire duration of a project.
Traditional precision engineering meets modern high-pressure technology. The demands placed on precision turned parts continue to increase as modern applications become more complex—from the automotive industry and medical technology to hydraulics.
Yet one fundamental principle has remained unchanged since the early days of watchmaking: components must deliver precise, repeatable quality that users can rely on.
Are you planning a project where microns determine success or failure? As a partner for precision turned parts and assemblies based on turned components, we contribute our expertise from the quotation phase onwards—with a dedicated contact person following the “One Face to the Customer” principle instead of an anonymous hotline.
Contact us and let us work together to determine how your requirements can be implemented efficiently and economically in series production.
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