Used Mitutoyo QMH-350BX Digital Height Gauge 350mm

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Product Highlight

Used Mitutoyo QM-Height QMH-350BX (518-244) is a high-precision digital height gauge from a Japanese measuring instrument manufacturer. It features a 350mm measuring stroke, selectable 0.001mm resolution, and an air-floating base for easy repositioning. Offered with unopened packaging and an original inspection certificate, this instrument is suitable for precision machining, dimensional measurement, and industrial quality control.

Product Description

Used Mitutoyo QM-Height QMH-350BX (518-244) digital height gauge features a 350mm measuring stroke, selectable 0.001mm resolution, and an air-floating base for convenient positioning. Supplied with an original Mitutoyo inspection certificate, it is a cost-effective choice for CNC machining, precision engineering, and industrial quality control. Contact us for current condition details and a competitive quote.

Technical Specifications

Specification	Details
Brand	Mitutoyo
Series	QM-Height
Model	QMH-350BX
Product Code	518-244
Brand Origin	Japan
Equipment Type	Digital Height Gauge
Condition	Used Equipment – Unopened Packaging
Measuring Range	0–465 mm
Measuring Stroke	350 mm
Resolution	0.001 / 0.005 mm, selectable
Indication Accuracy at 20°C	±(2.4 + 2.1L/600) µm
Repeatability (2σ)	≤ 1.8 µm
Perpendicularity (Front/Back)	7 µm
Measuring Force	1.5 ± 0.5 N
Encoder	Electromagnetic Induction Absolute Encoder
Drive Mechanism	Manual Handwheel
Air-Floating Base	Yes, for repositioning only
Data Output	Digimatic / Digimatic 2 / USB
Power Supply	4 AA Alkaline Batteries / Optional AC Adapter
Dimensions (W × D × H)	280 × 273 × 784 mm
Instrument Weight	Approx. 25 kg
Inspection Certificate	Original Mitutoyo Certificate Available
Current Calibration	Not Independently Verified

Technical values are manufacturer specifications for model QMH-350BX, code 518-244, rather than current measurements of this individual instrument.

Original Inspection Certificate

Item	Details
Model	QMH-350BX
Product Code	518-244
Serial Number	0002033
Inspection Date	February 21, 2022
Inspection Temperature	20°C
Appearance	Good
Function	Good
Recorded Repeatability	0.0 µm
Recorded Perpendicularity	4 µm
Original Inspection Result	Passed

Note: The above results refer to the original inspection certificate. They do not establish the equipment's present calibration accuracy.

Applications & Industries

The Mitutoyo QMH-350BX digital height gauge is suitable for precision dimensional measurement and quality inspection across a variety of industrial environments.

CNC Machining & Metalworking

Measure part heights, step differences, and dimensional features during machining inspection and production quality control.

Precision Mold & Die Manufacturing

Inspect mold components, dies, and precision tooling where accurate dimensional verification is essential.

Automotive Component Inspection

Support measurement of machined automotive parts, including housings, brackets, shafts, and other precision components.

Quality Control & Metrology Laboratories

Perform dimensional inspection and repeatable height measurements using suitable measuring probes and a precision surface plate.

Machinery & Equipment Manufacturing

Check component dimensions during equipment assembly, mechanical production, and incoming quality inspection.

Precision Engineering Workshops

Measure heights, steps, widths, and inside or outside dimensions with appropriate accessories and measurement procedures.

The QMH-350BX features an air-floating system for convenient movement on a suitable precision surface plate. The instrument must be properly seated during measurement because accuracy is not guaranteed while air-floating.

FAQ

What is the measuring range of the Mitutoyo QMH-350BX?

The QMH-350BX has a manufacturer-specified measuring range of 0–465mm and a measuring stroke of 350mm. It offers selectable 0.001mm and 0.005mm resolution for precision dimensional inspection.

Can the Mitutoyo QMH-350BX measure diameters and step differences?

Yes. With appropriate probes and measurement procedures, the QMH-350BX can measure heights, step differences, and inside or outside dimensions. Its air-floating base also allows convenient repositioning on a suitable surface plate.