Square gauge include feet ,angle plate and so on (Special tool to 90 degrees). Used to test the verticality of workpiece
Port: TIANJIN
Minimum Order Quantity: 1 Piece/Pieces
Supply Ability: 500 Piece/Pieces per Month
Payment Terms: L/C,T/T
Contact Supplier
Packaging Detail: wooden case
Delivery Detail: 10-30days after you order
Instructions For Granite square ruler
Granite square ruler
Using of granite square ruler,
Square gauge include feet ,angle plate and so on (Special tool to 90 degrees). Used to test the verticality of workpiece and equipment installing. Installation and scribing orientation of mechanical industry is an important measurement tools. It is characteristic of high accuracy, good stability, convenient in maintenance.
Material ,sing "Jinan green" stone by hand-grinding machining made.
Merit ,lossy black ,structure of precision ,homogeneous structure ,high strength ,hardness ,good stablility, no rust, acid-proof alkali, good wearproof ,magnetization-resisting and high durability .In general heavy load and high temperatures can maintain high precision.
Physical characteristics,
Specific gravity,2970----3070kg
Compressive strength,245---254N
Coefficient of linear expansion.4.6×10~6°C
Water absorption,0.13%
Shore hardness,more than Hs70
Standard, According to the national standard GB/T6092-2004 manufacturing.
Dimension ,e can make the products according to customer 's design )
Type(mm) | Squareness between | Flatness and straightness | Flatness and straightness | |||
Precision Grade (μm) | ||||||
| 00 | 0 | 00 | 0 | 00 | 0 | |
| 100×63 | 2 | 4 | 1 | 1 | 1 | 1 |
| 160×100 | 2 | 4 | 1 | 2 | 1 | 1 |
| 250×160 | 2.5 | 5 | 1 | 2 | 1 | 2 |
| 400×250 | 3.5 | 7 | 1 | 2.5 | 1 | 2 |
| 630×400 | 4.5 | 9 | 1.5 | 3 | 1 | 2.5 |
| 1000×630 | 6 | 12 | 2.5 | 5 | 1.5 | 5 |
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