Granite Base For Height Gauge

UNPARALLELED LTD is one of the leading manufacturers and suppliers of granite base for height gauge in China. With abundant experience, we warmly welcome you to buy advanced granite base for height gauge made in China here from our factory. We also accept custom orders.

UNPARALLELED Group granite base for height gauge is manufactured from high‑density black granite. It serves as a precision reference base for height gauges and dial‑indicator comparative measurement. Machined in a constant‑temperature workshop, it features excellent flatness, non‑magnetic property, good vibration‑damping performance and low thermal deformation. Pre‑embedded stainless‑steel threaded inserts allow direct assembly of columns and gauge holders. Custom dimensions and hole patterns are supported. Each unit comes with CNAS traceable inspection reports. Suited for metrology laboratories and workshop QC stations, it delivers stable nano‑level measuring datum and mitigates measurement deviations caused by vibration and temperature fluctuation.

Developed specifically for metrological comparative‑measurement applications, UNPARALLELED Group granite base for height gauge is machined from one‑piece dense granite without splicing seams to avoid accuracy discontinuities caused by joints. Compared with metallic bases, it delivers not only excellent static geometric accuracy, but also outstanding dynamic stability during measurement, and directly improves repeatability for height comparison and dimensional re‑inspection.

Superior vibration‑damping performance stands out for metrology tasks. Height‑gauge measurements are highly susceptible to floor‑transmitted micro‑vibration and disturbance from surrounding equipment; even minor vibration causes reading fluctuation. Granite dissipates vibration energy rapidly through internal friction among mineral grains and accelerates vibration decay. It shortens settling waiting‑time for measurement, boosts inspection throughput, stabilizes readings and reduces data dispersion induced by vibration.

Outstanding thermal stability adapts to variable conditions in workshops and laboratories. Under minor ambient‑temperature fluctuation, granite features low thermal‑expansion coefficient and homogeneous texture. Local warping deformation will not occur. Parallelism and flatness of working surfaces and mounting holes remain consistent. It eases strict requirements for constant‑temperature laboratories and delivers reliable measuring results even at workshop QC stations.

Intrinsic non‑magnetic property and chemical inertness eliminate hidden measurement interference. The base will not be magnetized, so metallic debris will not accumulate on measuring zones. Resistant to cutting‑fluid and moisture corrosion, it never rusts or spalls, preventing metal‑chip contamination of dial‑indicator probes. It reduces abnormal reading drift caused by foreign particles and cuts routine anti‑corrosion maintenance workload.

Subjected to geological natural aging plus artificial constant‑temperature stress‑relief treatment, the granite contains no residual internal stress. No benchmark drift occurs from gradual stress release over long‑term service. Working surfaces are precision‑ground to Grade 00 / Grade 0 accuracy. Columns and gauge holders can be mounted directly. Threaded inserts are processed with defined torque specifications for sustained geometric accuracy after assembly and lower re‑calibration frequency. Custom dimensions, hole layouts and weight‑reduction slots are available per customer drawings to fit height gauges and comparators of different brands.

Though wear‑resistant, granite bases shall be protected against hard‑impact edge chipping. Perform regular dry dust removal in dusty environments; fit dust‑proof plugs for unused holes. Never strike workpieces directly against the granite surface. Avoid high‑pressure air blowing into insert cavities. If particle indentations appear on reference surfaces, do not perform on‑site polishing. Contact manufacturer for rework evaluation. Keep full dust‑covers fitted during long‑term storage.

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