MEGA Tech proud to present MDH-25MBMeasuring from Mitutoyo, accuracy equivalent to a laser micrometer, no jig, etc. needed to be fabricated, Simple measurement enabled even for very small parts, Portable and compatible with standard workpiece measurement techniques, similar to conventional micrometers, and low investment in equipment compared with other choices
Easy, Rapid and High-accuracy Measurement of Workpieces That Require an Accuracy of 1 μm or Less
Delivering ±0.5 μm accuracy at 0.1 μm resolution means Mitutoyo’s MDH- 25MB is the most accurate hand-held micrometer available*, and this instrument will enable you to easily and rapidly measure workpieces that require very-high-accuracy measurement. This remarkable performance is attained due to Mitutoyo’s proprietary ABS (absolute) rotary encoder and high-accuracy thread cutting technology.
*Mitutoyo’s research as of July, 2018
Application
Beyond the Usual Micrometer! Many More Kinds of High-accuracy Parts Now Measurable.
This micrometer allows easy, rapid and high-accuracy measurement of workpieces that require a measuring accuracy of 1 μm or less, such as medical parts, precision instruments and auto-parts regarded as being difficult to accurately measure with conventional micrometers.
Manufacturing: Pin gage measurement are widely used for measurement of the diameter or center-to-center distance of holes. The periodic calibration of a high-precision pin gage requires high-accuracy measurement.
Medical care: Hypodermic needle measurement to reduce injection pain as much as possible, the outside diameter of hypodermic needle tips has become much thinner. Some needles have a tip diameter of just 0.2 mm, thus requiring high-accuracy measurement.
Electric/electronic devices: Fiber optics measurement, the optical-transmission cylindrical “core” made of quartz glass is 0.01 to 0.05 mm in diameter. Since its thickness is similar to a strand of hair, high accuracy is required for its measurement.
Automobile/office equipment: Bearing measurement, High-accuracy measurement is required for the component parts of anti-friction ball and roller bearings that are required to support vibration-free rotation in high-quality products.
Machine tools: Cutting tool measurement, the diameter of extremely small drills used for manufacturing precision tools and instruments requires high accuracy measurement.
Technology
Ratchet thimble with an anti-friction bearing
Measurement repeatability has been improved by changing from sliding to rolling friction to dramatically reduce the torque needed to operate the constant-force device. This makes measurement even more consistent even for operators new to this micrometer.
Heat transfer reduction with a heat shield
The influence of heat transferred to the micrometer frame during measurement through hands has been reduced with this micrometer by fitting the supplied heat shield. The graph below shows the heat shield almost eliminates thermally induced error by minimizing thermal expansion of the frame.
ABS (absolute) rotary encoder with a resolution of 0.1 μm and high-accuracy thread cutting technology
The development of a 5000-division rotary encoder has achieved the unprecedented resolution of 0.1 μm in a hand-held micrometer. The commercialization of this ABS (absolute) encoder also improves its reliability. Additionally, since the spindle-thread pitch accuracy directly affects measuring accuracy, Mitutoyo has developed a series of technologies from thread cutting technology to thread evaluation technology, thereby guaranteeing the achievement of high accuracy.
USABILITY
Wear-resistant carbide tip: The ø3.2 mm carbide tip on the measuring face is highly resistant to wear, allowing accurate measurement for an extended period of time.
Enhances productivity, ease of use: This micrometer is equipped with many versatile and time-saving functions such as resolution switching (0.0001 mm/0.0005 mm), function lock, and presetting.
Absolute encoder: The ABS (absolute) rotary encoder eliminates the need for origin point setting at every power-on, allowing immediate starting of measurement. This encoder achieves high reliability without causing an overspeed error.
Zero-setting function: This function allows the display to be zero set at any position, thus facilitating comparative measurement. Also, the absolute value from the origin can be restored.
Built-in “Hold” function: This function can hold (freeze) the displayed value. Enables the micrometer to be removed from a workpiece when the readout is not easily viewable so the measurement value can be read at your convenience.
Whatever your challenges are, Mitutoyo supports you from start to finish. Mitutoyo is not only a manufacturer of top-quality measuring products but one that also offers qualified support for the lifetime of the equipment, backed by comprehensive services that ensure your staff can make the very best use of the investment. Apart from the basics of calibration and repair, Mitutoyo offers product and metrology training, as well as IT support for the sophisticated software used in modern measuring technology. We can also design, build, test and deliver measuring solutions and even if deemed cost-effective, take your critical measurement challenges in-house on a sub-contract basis.
Article by: Sumipol Co., Ltd. & MEGA Tech