UNPARALLELED LTD is one of the leading manufacturers and suppliers of granite parallels in China. With abundant experience, we warmly welcome you to buy advanced granite parallels made in China here from our factory. We also accept custom orders.
Granite parallels are made by nice black granite. Granite parallel is two granite bars of exactly equal height, the four long sides of the granite parallel rails are hand ground to a precision of 1 micron. UNPARALLELED can manufacture precision granite parallels with a variety of size. 2 Face (finished on the narrow edges) and 4 Face (finished on all sides) versions are available as Grade 0 or Grade 00 /Grade B, A or AA. Granite parallels are very useful for doing machining setups or similar where a test piece must be supported on two flat and parallel surfaces, essentially creating a flat plane.
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TYPE (mm)
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Flatness of working surface and parallelism between opposite surfaces |
Squareness between working surfaces |
Length and width differences between a matched pair |
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|
Precision Grade(μm) |
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|
00 |
0 |
00 |
0 |
00 |
0 |
|
|
160*25*16 |
1.5 |
3 |
20 |
40 |
1.5 |
3 |
|
250*40*25 |
2 |
4 |
30 |
60 |
2 |
4 |
|
400*63*40 |
4 |
8 |
40 |
80 |
4 |
8 |
|
450*75*40 |
4.5 |
9 |
45 |
90 |
4.5 |
9 |
|
630*100*63 |
6 |
12 |
50 |
100 |
6 |
12 |
|
Please ask if need custom granite parallels. |
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BRAND |
UNPARALLELED |
MATERIAL |
Nature Black Granite |
|
APPLICATION |
CNC, Laser, Metrology |
DENSITY |
≈3070kg/m3 |
|
CONDITION |
NEW CUSTOM |
COLOR |
Pure Black |
|
ORIGIN |
Jinan, Shandong PR, CHINA |
PRECISION |
1 μm or higher |
|
WARRANTY |
1 YEAR |
STANDARD |
DIN, GB, ASME,JIS... |
|
PACKAGING |
Custom Export Package |
CERTIFICATE |
ISO9001, CE... |
|
PAYMENT ITEM |
T/T, L/C... |
KEY WORD |
Granite Air Bearing |
|
MATERIAL ORIGIN |
Jinan, China; India; South Afica |
TECHNICAL SUPPORT |
Inpsection& Calibration& Assembly |
|
PRICE |
EXW, FOB, CIF, DAP, CPT... |
SERVICE |
Design drawings |
Laser Interferometer
Electric Level
Roughness Meter
Vernier Caliper
Dial Gauge
Inductance Micrometer
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