Cangzhou Famous International Trading Co., Ltd
| Payment Terms | T/T, Western Union |
| Supply Ability | 100PC /30days |
| Delivery Time | 10 work days |
| Packaging Details | wooden |
| Material | black granite |
| color | Black |
| application | industry |
| flatness | 00grade |
| Size | 800x500mm |
| Brand Name | Willing |
| Model Number | 800x500mm |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, Western Union | Supply Ability | 100PC /30days |
| Delivery Time | 10 work days | Packaging Details | wooden |
| Material | black granite | color | Black |
| application | industry | flatness | 00grade |
| Size | 800x500mm | Brand Name | Willing |
| Model Number | 800x500mm | Place of Origin | China |
| High Light | granite inspection plate ， granite flat plate | ||
High Precision 800x500MM Black Granite Surface Plate Calibration
Granite surface plates and tables are a must for accurate measurement and provide a stable environment for inspection. They are free from temperature distortion and offer an exceptionally sturdy measuring environment due to their thickness and weight.
Granite is a type of igneous rock formed in the Earth millions of years ago. The composition of igneous rock contained many minerals such as quartz that is extremely hard and wear-resistant. In addition to hardness and wear resistance granite has approximately half the coefficient of expansion as iron. As its volumetric weight is approximately one third that of iron, granite is easier to manoeuvre.
For machine bases and metrology components, black granite is the colour most used. Black granite has a higher percentage of quartz than other colours and is, therefore, the hardest wearing.
Granite is cost-effective, and cut surfaces can be exceptionally flat. Not only can it be hand lapped to achieve extremes of accuracy, but re-conditioning can be performed without moving the plate or table off-site. It is entirely a hand lapping operation and generally costs much less than re-conditioning a cast iron alternative.
These qualities make granite the ideal material to create custom-size and custom-design machine bases and metrology components.
The main advantages of granite surface plates are:
• Non-reflective
• Resistant to chemicals and corrosion
• Low coefficient of expansion so less affected by temperature change
• Naturally rigid and hard-wearing
• The plane of the surface is unaffected if scratched
• Will not rust
• Non-magnetic
• Easy to clean and maintain
• Calibration and resurfacing can be done onsite
• Suitable for drilling for threaded support inserts
• High vibration damping
| Specification(MM) | Weight(KG) | 00Grade(um) | 0 Grade(um) |
| 300*300*50 | 19 | 3 | 6 |
| 400*300*70 | 25 | 3 | 6 |
| 400*400*70 | 48 | 3.5 | 6.5 |
| 630*400*100 | 76 | 3.5 | 7 |
| 630*630*100 | 155 | 4 | 8 |
| 800*500*130 | 156 | 4 | 8 |
| 1000*630*130 | 284 | 4.5 | 9 |
| 1000*750*150 | 338 | 5 | 9 |
| 1000*1000*150 | 450 | 5 | 10 |
| 1600*1000*200 | 963 | 6 | 12 |
| 2000*1000*200 | 1200 | 6.5 | 13 |
| 1600*1600*300 | 2312 | 6.5 | 13 |
| 2000*1600*300 | 2890 | 7 | 14 |
| 2500*1600*300 | 3612 | 8 | 16 |
| 3000*2000*500 | 9030 | 9 | 18 |
| 4000*2000*500 | 12040 | 11 | 22 |
| 6000*2000*700 | 25284 | 15 | 30 |
Company Details
Business Type:
Manufacturer,Exporter,Trading Company
Year Established:
2015
Total Annual:
1000000-2000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Willing Measuring Tools Co. Ltd was established in 2000, which is one of the earliest factories specializing in making all kinds of precise measuring tools. After more than 10 years of continuous innovation and development, the factory has formed an entity system with a certain scale of productivity... Willing Measuring Tools Co. Ltd was established in 2000, which is one of the earliest factories specializing in making all kinds of precise measuring tools. After more than 10 years of continuous innovation and development, the factory has formed an entity system with a certain scale of productivity...
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