10 Coordinate Measuring Machinery (CMM) Manufacturers in 2022
This section provides overview, applications, and principles of coordinate measuring machinery (cmm). Also, please take a look at the list of 10 coordinate measuring machinery (cmm) manufacturers and their company rankings.
Table of Contents
What Is a CMM?
A CMM is an instrument that can measure surface profiles at the nano-level. It can capture the shape of a part in three dimensions and perform various measurements. They are used to measure the surface roughness, height, and thickness of substrates and semiconductors, and are characterized by high speed, high resolution, and high accuracy.
There are various types of CMM, depending on how they are used. There are stationary and portable types in terms of installation, and contact, non-contact, laser tracker, and layout machines in terms of measurement methods.
Uses of CMMs
Applications of CMMs are as follows.
1.Line Roughness Measurements
Typical parameters such as Ra, Rz, etc. can be measured. An example is the evaluation of threads. 2.
2.Surface Roughness Measurements
By surface measurement, it is possible to measure waviness and surface-to-surface steps with high accuracy. Examples are evaluation of washer waviness and block gage step measurement.
3.Plane Measurements
Used to measure the distance between two points, straight lines, circular centers, and various other flat surfaces.
They are used in all industries, including the medical device, archaeology, molding, and watch industries.
Principle of CMMs
Most CMMs use white-light interferometry. White-light interferometry is a measurement method that uses a white-light interferometer. Here is a brief explanation of how a white interferometer works.
Light interference is a phenomenon that occurs when there is a difference in the distance of light from the surface of an object to a certain point. Using this phenomenon, optical interferometry is used to measure the state of surface irregularities. The number of stripes indicates the height of the unevenness of the sample surface. In practice, an objective lens with a built-in reference mirror, called an interference lens, is used, and white light is irradiated onto the reference mirror and the objective lens. The objective lens is moved up and down and the interference signal is observed by a camera.
Some models are also equipped with a high-sensitivity CMOS. CMOS is the name of a circuit system, and a solid-state imaging device using CMOS can capture an external image at the same time as the shape, allowing surface observation and measurement at the same time. The analysis contents are converted into data and can be viewed with CAD.
Types of CMMs
CMMs can be either contact type or non-contact type, depending on the shape of the object to be measured.
1.Contact Type CMMs
The contact type directly measures the shape of the object by applying a contactor to the surface of the object.
2.Non-Contact CMMs
The non-contact type measures the shape of an object by irradiating a laser beam onto the surface of the object.
Depending on the size and weight of the object to be measured, a fixed type and a portable type may be used.
Functions of CMMs
The CMMs currently on the market use the latest technology and can freely perform measurements that were impossible in the past.
The 3D coordinates of a specific point from a virtual origin are considered difficult to obtain with common measuring instruments such as calipers and micrometers.
Also, measurement using virtual points and virtual lines and geometric tolerances are also extremely difficult to measure with other measuring instruments, but CMMs can do so.
Recently, it has also become possible to read the shape of a prototype in 3D and create a 3D object using a 3D printer to check the shape in the same way as the actual product.
Challenges and Solutions for CMMs
The efficiency of CMMs has dramatically improved due to their high-precision measurement technology and faster processing speed of measurement data, but there are still some issues to be solved.
They are:
- The cost to install the system is high
- The installation space is large, and its maintenance is burdensome
- The size of the CMMs itself is limited, which in turn limits the size of the object to be measured
However, the articulated arm type CMMs has emerged to solve these problems. See below.
Using technology originally developed for manufacturers of artificial limbs and feet, transportable CMMs are now being used.
The ability to move the arm exactly at the will of the person being measured has further expanded the range of measurements that can be made.
The introduction of non-contact, laser-based measuring machines also made it possible to measure large objects.
List of 10 Coordinate Measuring Machinery (CMM) Manufacturers
*Including some distributors, etc.
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- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
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Keyence
CMM / Laser Tracker
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Mitutoyo
COORDINATE MEASURING MACHINES
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Hexagon AB
Coordinate Measuring Machines (CMM)
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Coordinate Measuring Machinery (CMM) Manufacturer Ranking
*Including some distributors, etc.Ranking as of January 2023 in United States
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Mitutoyo | 24.1% |
| 2 | Made to Measure | 13.8% |
| 3 | CMMXYZ | 13.8% |
| 4 | Nikon Metrology | 10.3% |
| 5 | WENZEL America | 6.9% |
| 6 | Velocity Machine | 6.9% |
| 7 | Dimensional Engineering | 6.9% |
| 8 | ZEISS | 6.9% |
| 9 | Keyence | 6.9% |
| 10 | Hexagon AB | 3.4% |
Ranking as of January 2023 Globally
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Mitutoyo | 24.1% |
| 2 | Made to Measure | 13.8% |
| 3 | CMMXYZ | 13.8% |
| 4 | Nikon Metrology | 10.3% |
| 5 | WENZEL America | 6.9% |
| 6 | Velocity Machine | 6.9% |
| 7 | Dimensional Engineering | 6.9% |
| 8 | ZEISS | 6.9% |
| 9 | Keyence | 6.9% |
| 10 | Hexagon AB | 3.4% |
Derivation Method
The ranking is calculated based on the click share within the coordinate measuring machinery (cmm) page as of January 2023. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
- ZEISS: 35,375
- Velocity Machine: 85
Newly Established Company
- ZEISS: 2006 (17 years ago)
- Dimensional Engineering: 2005 (18 years ago)
- Velocity Machine: 1999 (24 years ago)
Company with a History
- Made to Measure: 1985 (38 years ago)
- CMMXYZ: 1986 (37 years ago)
- Velocity Machine: 1999 (24 years ago)
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