Calibration Flatness Lapping Stone Flat CO Granite Surface Plate
OEM Machine Calibration And Measurement Granite Surface Plate
A granite surface plate is needed in your workshop to aid with sharpening tools when a flat reference point is required, it is also useful when marking out or checking the flatness of your tools or work. Because the plate is made of solid granite it will not rust or corrode and it is guarenteed not to warp or deform over time
| Precision granite surface plate lab table for measuring | |
| Name | Plates testing granite |
| Material | Jinan Green Granite |
| Proportion | 2970-3070 Kg/m² |
| Compressive Strength | 245-254 Kg/m² |
| Modulus of Elasticity | 1.27-1.47N/mm² |
| Linear Expansion Coefficient | 4.6×10-6/℃ |
| Water Absorption | 0.13% |
| The Hardness | HS70 |
| Usage | A. As a precision reference measurement tool
B. Measure the flatness, straightness of machine table, rail and precision plate |
| Package | Wooden Box |
Our granite surface plate refers to the advanced standards of the leading countries, and its flatness tolerance is in accordance with the JB/T 7975-1999 Surface Plate:
Grade 000 =1x(1+d/1000)/μm
Grade 00 =2x(1+d/1000)/μm
Grade 0 =4x(1+d/1000)/μm
Grade 1 =8x(1+d/1000)/μm
(d is the length of the diagonal)
|
Specification |
Weight (kgs) |
Precision Grade (μm) |
|||
|
000 |
00 |
0 |
1 |
||
|
300 × 200 × 50 |
17 |
1.5 |
3 |
6 |
12 |
|
300 × 300 × 50 |
19 |
1.5 |
3 |
6 |
12 |
|
400 × 300 × 70 |
25 |
1.5 |
3 |
6 |
12 |
|
400 × 400 × 70 |
48 |
2 |
3.5 |
6.5 |
13 |
|
630 × 400 × 100 |
76 |
2 |
3.5 |
7 |
14 |
|
630 × 630 × 100 |
155 |
2 |
4 |
8 |
16 |
|
800 × 500 × 130 |
156 |
2 |
4 |
8 |
16 |
|
1000 × 630 × 130 |
284 |
2.5 |
4.5 |
9 |
18 |
|
1000 × 750 × 150 |
338 |
2.5 |
5 |
9 |
18 |
|
1000 × 1000 × 150 |
450 |
2.5 |
5 |
10 |
20 |
|
1600 × 1000 × 200 |
963 |
3 |
6 |
12 |
24 |
|
2000 × 1000 × 200 |
1200 |
3.5 |
6.5 |
13 |
26 |
|
1600 × 1600 × 300 |
2312 |
3.5 |
6.5 |
13 |
26 |
|
2000 × 1600 × 300 |
2890 |
3.5 |
7 |
14 |
28 |
|
2500 × 1600 × 300 |
3612 |
4 |
8 |
16 |
32 |
|
3000 × 2000 × 500 |
9030 |
4.5 |
9 |
18 |
36 |
|
4000 × 2000 × 500 |
12040 |
5.5 |
11 |
22 |
44 |
|
6000 × 2000 × 700 |
25284 |
7.5 |
15 |
30 |
60 |
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