Coordinate Measuring Machine (CMM)

Product Specifications

Technical details and manufacturing context for Coordinate Measuring Machine (CMM)

Definition

A Coordinate Measuring Machine (CMM) is a core component of a Quality Inspection Station. It is a high-precision, automated device that uses a tactile or optical probe to collect discrete point data from the surface of a physical object. This data is compared against a digital CAD model or design specifications to verify dimensional accuracy, geometric tolerances, and overall conformance to quality standards, ensuring manufactured parts meet precise engineering requirements. The CMM operates by moving a probe along three orthogonal axes (X, Y, Z) within a defined measurement volume. The probe contacts the part's surface at programmed points. The machine's controller records the precise coordinate position of each contact point. These measured coordinates are then processed by metrology software to calculate dimensions, form, location, and orientation, generating a detailed inspection report. Typical specifications include a measuring range from 500×400×300 mm to 3000×1500×1000 mm, accuracy (MPE_E) from 1.5 to 5.0 µm per ISO 10360-2, repeatability (MPE_R) from 1.0 to 3.0 µm, resolution from 0.1 to 0.5 µm, and maximum workpiece weight from 500 to 5000 kg. Operating temperature range is 15–30°C with a maximum gradient of 1.0°C/h, relative humidity 40–70% RH, power supply 220–240 V AC, power consumption 1.5–3.0 kW, air supply pressure 0.4–0.6 MPa, air consumption 50–200 L/min, machine weight 1000–10000 kg, and ingress protection IP54–IP65. Materials used include granite for the base, aluminum or steel alloy for the bridge/gantry, ceramic for guideways, and stainless steel for probe components. These values are reference ranges; verify model-specific specifications with the manufacturer.

Working Principle

The CMM operates by moving a probe along three orthogonal axes (X, Y, Z) within a defined measurement volume. The probe contacts the part's surface at programmed points. The machine's controller records the precise coordinate position of each contact point. These measured coordinates are then processed by metrology software to calculate dimensions, form, location, and orientation, generating a detailed inspection report.

Common Materials

Granite (for base/table), Aluminum or Steel Alloy (for bridge/gantry), Ceramic (for guideways), Stainless Steel (for probe components)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Measuring Range (X, Y, Z)	500×400×300 – 3000×1500×1000 mm	Select based on part size; larger range reduces accuracy.
Accuracy (MPE_E)	1.5–5.0 µm	Lower is better; affects measurement uncertainty.ISO 10360-2
Repeatability (MPE_R)	1.0–3.0 µm	Indicates consistency of measurements.ISO 10360-2
Resolution	0.1–0.5 µm	Finest step detectable; higher resolution improves precision.
Max Workpiece Weight	500–5000 kg	Exceeding limit may cause deflection and measurement error.
Operating Temperature Range	15–30 °C	Temperature variations affect accuracy; keep within ±1°C.ISO 10360-2
Temperature Gradient	1.0 °C/h	Maximum change per hour; higher gradient degrades accuracy.ISO 10360-2
Relative Humidity Range	40–70 % RH	Condensation can damage electronics and optics.
Power Supply	220–240 V AC	Voltage fluctuation may cause errors; use stabilizer.IEC 60204-1
Power Consumption	1.5–3.0 kW	Affects cooling and electrical installation.
Air Supply Pressure	0.4–0.6 MPa	Required for air bearings; low pressure causes friction.ISO 8573-1
Air Consumption	50–200 L/min	Ensure compressor capacity and filtration.
Machine Weight	1000–10000 kg	Important for floor loading and vibration isolation.
Ingress Protection (IP) Rating	IP54–IP65	Higher rating protects against dust and water.IEC 60529

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Machine Structure (Bridge/Gantry)
Provides the rigid framework that supports and moves the probe assembly along the three axes.

Material: Aluminum Alloy or Granite
Probe Head
Holds the measurement probe and allows for rotational indexing to access complex part features from multiple angles.

Material: Stainless Steel, Ceramics
Measurement Probe (Stylus)
The tactile or optical sensor that makes physical contact with or scans the part surface to collect coordinate data.

Material: Ruby (tip), Stainless Steel (shaft)
Granite Table/Base
Provides a stable, vibration-dampening, and thermally stable reference surface on which the part is placed for measurement.

Material: Granite
Controller & Drive System
Electronically controls the precise movement of the machine axes and captures coordinate data from the probe.

Material: Various (Electronic Components, Motors)

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Quality Inspection Station

View system integration details

Manufacturers of Coordinate Measuring Machine (CMM)

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Masion Sheet Metal Fabrication

Cixi, Zhejiang, CN

Founded 2007Over 400+ staff30,000 m3

ISO 16949

Also makes: Industrial Enclosure, Coordinate Measuring Machine, Industrial Tube Bending Machine and 9 more

Listed on the company's own website · profile compiled by CNFX from public sources

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Frequently Asked Questions

What is the typical measuring range of a CMM?

The measuring range (X, Y, Z) typically varies from 500×400×300 mm to 3000×1500×1000 mm. The choice depends on the size of the parts to be inspected; larger ranges may reduce accuracy. Always confirm the exact range for your model.

What accuracy can be expected from a CMM?

Accuracy (MPE_E) is typically between 1.5 and 5.0 µm, and repeatability (MPE_R) between 1.0 and 3.0 µm, as per ISO 10360-2. Lower values indicate better performance. These are reference ranges; verify the specific values for your machine.

What environmental conditions are required for a CMM?

The operating temperature range is 15–30°C with a maximum gradient of 1.0°C/h. Relative humidity should be 40–70% RH. Temperature variations can affect accuracy, so maintaining stable conditions is crucial. Check the manufacturer's specifications for your model.

What are the power and air supply requirements?

Power supply is typically 220–240 V AC, with power consumption between 1.5 and 3.0 kW. Air supply pressure should be 0.4–0.6 MPa, and air consumption 50–200 L/min. Ensure your facility meets these requirements to avoid operational issues.

Data Basis

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Preliminary Technical Classification

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pressure:	Standard atmospheric pressure, vibration isolation required
other spec:	Humidity: 40-60% RH, Cleanroom ISO Class 7 or better, Max part weight: 500-5000 kg depending on model
temperature:	18-22°C (64-72°F) with ±0.5°C stability

Product Specifications

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