1.Our
granite measuring devices and granite mechanical components
are made of high quality “ JiNanQing” granite. Due to
their high precision, long duration, good stability and
corrosion resistance ,they have been more and more used
in product inspection of modern industries and such high-tech
areas as mechanical aerospace and scientific researches.
Physical Properties of “JiNanQing”
Granite Rock
Specific Gravity：2970-3070Compressive
Strength：245-254
Elastic Modulus：1.27-1.47
Linear Expansion Coefficient：4.61×10-6/℃
Water Absorptive：＜0.13%
Shore Hardness：70Hs
The granite measuring tools have the
following characteristics:
1.High precision reliable stability resistant to deform
and guaranteed accuracy under normal ambient temperature.
2.No-rust and anticorrosion.
3.Wear resistance long service life.
4.Any working surface cutting or scratching does not bring
about rough “edges”which might influence its measuring
precision.
5.Nonmagnetization
.6.Gloosy surface without sluggishness when the workpieces
or tools are moving on it.
2.Our factory was first in china to produce high precision devices
by the use of granite stone .using best quality granite as raw
material. We are now able to produce up to 10 series and over
40 models of different items.orders with special specifications
or for a wide range of granite machine parts are also accepted.which
may include such parts as bases,beams,guide ways and columns as
used on CMMS or drilling and milling machines for PC board.etc.Seated
on a granite base and with a measuring accuracy up to 0.0005mm,the
bench center is a newly developed product designed specially for
measurement of both radial and axial run-out of any cylindrical
or disk-like work-pieces.
3. With the combined experience of
our staff and our engineering and other resources we take special
pride in our willingness and ability to help you with the development
of your prototype. We always look forward to this opportunity.we
provide precision granite product(oem) for many famous company
BROWN&SHARPE,INC
DANAHER PRECISION SYSTEMS
M AND M PRECISION SYSTEMS CORPORATION
SHEFFIELD INC
TOKYO SEIMITSU CO,LTD
TESA SA MEASURING INSTRUMENTS AND SYSTEMS
DEA S.P.A.
LK LIMITED
INTERNATIONAL METTOLOGY SYSTEM LIMITED
LPKE MOTION&CONTROL GMBH
SCHUT GEOMETRISCHE MEETTECHNIEK BV.
CARL ZEISS
Compressive
Strength：245-254
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