Black Granite Layout Table For Industry

Granite Surface Plates are used for precision gauging, inspection, layout and marking purposes. They are preferred by Precision Tool Rooms, Engineering Industries and Research Laboratories because of their following outstanding advantages.
*Well-selected granite materials
*Nice stableness.
*High intensity and rigidity
*Grade 1, 0, 00 are available.
*T-slots or thread holes can be made according to the requirements
* A surface plate made from fine-grained black granite
* This material has many advantages compared to cast iron in this application, such as being non-magnetic, rustless, twice as
hard, non-burr-forming and not prone to stickiness
* Stress relieved for maximum stability
* Harder than steel
* Non-magnetic and electrically non conducting

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

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)