Precision Granite Square Ruler (Master Square)
Why choose a ZHHIMG granite square ruler over traditional steel or cast iron versions? The answer lies in the unique physical properties of natural hard stone:
• Geological Dimensional Stability: Our granite has been naturally aged for millions of years, ensuring it is free from the internal stresses found in metallic tools. It will not warp, creep, or change shape over time.
• Superior Thermal Performance: Granite has an extremely low coefficient of thermal expansion and high thermal inertia. It remains dimensionally stable even if there are slight temperature fluctuations in your inspection room.
• Natural Vibration Damping: The dense, non-homogeneous structure of granite naturally absorbs and dissipates mechanical energy, providing a steady reference for sensitive electronic probes.
• Non-Magnetic & Non-Conductive: Unlike steel, granite is completely inert. It will not attract magnetic debris and is safe for use in environments with sensitive electromagnetic equipment or EDM processes.
• Wear Resistance & Bur-Free Surfaces: Granite is incredibly hard (Mohs scale 6-7). If the surface is accidentally scratched, the material chips away rather than creating a "burr" (raised edge), ensuring the overall flatness of the tool remains intact.
|
Model |
Details |
Model |
Details |
|
Size |
Custom |
Application |
CNC, Laser, CMM... |
|
Condition |
New |
After-sales Service |
Online supports, Onsite supports |
|
Origin |
Jinan City |
Material |
Black Granite |
|
Color |
Black / Grade 1 |
Brand |
ZHHIMG |
|
Precision |
0.001mm |
Weight |
≈3.05g/cm3 |
|
Standard |
DIN/ GB/ JIS... |
Warranty |
1year |
|
Packing |
Export Plywood CASE |
After Warranty Service |
Video technical support, Online support, Spare parts, Field mai |
|
Payment |
T/T, L/C... |
Certificates |
Inspection Reports/ Quality Certificate |
|
Keyword |
Granite Machine Base; Granite Mechanical Components; Granite Machine Parts; Precision Granite |
Certification |
CE, GS, ISO, SGS, TUV... |
|
Delivery |
EXW; FOB; CIF; CFR; DDU; CPT... |
Drawings’ format |
CAD; STEP; PDF... |
The ZHHIMG Granite Square Ruler is the preferred reference tool across high-tech industries:
• CNC Machine Calibration: Essential for checking the perpendicularity of X, Y, and Z axes to ensure machining accuracy.
• Aerospace & Automotive: Used to inspect the verticality of engine blocks, turbine components, and airframe structures.
• Optical & Semiconductor Setup: Provides the stable 90-degree reference required for aligning laser paths and lithography stages.
• Master Metrology Reference: Used to calibrate other workshop tools like steel squares, height gauges, and calipers.
We use various techniques during this process:
● Optical measurements with autocollimators
● Laser interferometers and laser trackers
● Electronic inclination levels (precision spirit levels)
1. Documents together with products: Inspection reports + Calibration reports(measuring devices) + Quality Certificate + Invoice + Packing List + Contract + Bill of Lading(or AWB).
2. Special Export Plywood Case: Export fumigation-free wooden box.
3. Delivery:
|
Ship |
Qingdao port |
Shenzhen port |
TianJin port |
Shanghai port |
... |
|
Train |
XiAn Station |
Zhengzhou Station |
Qingdao |
... |
|
|
Air |
Qingdao Airport |
Beijing Airport |
Shanghai Airport |
Guangzhou |
... |
|
Express |
DHL |
TNT |
Fedex |
UPS |
... |
To ensure your ZHHIMG granite square ruler maintains its precision for a lifetime, follow these maintenance best practices:
• Regular Cleaning: Before and after use, wipe the precision surfaces with a lint-free cloth and a specialized granite cleaner or high-purity Isopropyl Alcohol (90%+).
• Preventive Protection: Always store the ruler in its protective wooden case or keep it covered with a vinyl cover when not in use to prevent dust accumulation.
• Handle with Care: While granite is hard, it is brittle. Avoid sharp impacts or dropping the tool, which can cause chipping.
• Periodic Calibration: We recommend professional recalibration at least once a year (or more frequently depending on usage) using laser interferometers to verify continued adherence to Grade 00/0 specifications.
QUALITY CONTROL
If you can’t measure something, you can’t understand it!
If you can’t understand it.you cant control it!
If you can’t control it, you can’t improve it!
More information please click here: ZHONGHUI QC
ZhongHui IM, your partner of metrology, help you succeed easily.
Our Certificates & Patents:
ISO 9001, ISO45001, ISO14001, CE, AAA Integrity Certificate， AAA-level enterprise credit certificate…
Certificates and Patents are an expression of a company’s strength. It’s society’s recognition of the company.
More certificates please click here: Innovation & Technologies – ZHONGHUI INTELLIGENT MANUFACTURING (JINAN) GROUP CO., LTD (zhhimg.com)
