Precision Granite Ruler: Nano-Level Accuracy & Stability
In the world of ultra-precision manufacturing, where tolerances are measured in microns and even nanometers, the foundation of every measurement must be unshakeable. That’s why ZHHIMG® has dedicated itself to crafting granite components that don’t just meet standards—they redefine them. Our Precision Granite Ruler isn’t merely a tool; it’s a statement of integrity. We refuse to compromise on material quality, using only our proprietary ZHHIMG® black granite with a density of approximately 3100 kg/m³—far superior to common marble or lower-grade stones. This isn’t marketing fluff; it’s physics. Higher density means greater rigidity, less deformation under load, and exceptional resistance to temperature fluctuations. When you hold this ruler, you’re holding decades of craftsmanship and an unwavering commitment to “No cheating, No concealment, No misleading.”
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Model |
Details |
Model |
Details |
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Size |
Custom |
Application |
CNC, Laser, CMM... |
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Condition |
New |
After-sales Service |
Online supports, Onsite supports |
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Origin |
Jinan City |
Material |
Black Granite |
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Color |
Black / Grade 1 |
Brand |
ZHHIMG |
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Precision |
0.001mm |
Weight |
≈3.05g/cm3 |
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Standard |
DIN/ GB/ JIS... |
Warranty |
1year |
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Packing |
Export Plywood CASE |
After Warranty Service |
Video technical support, Online support, Spare parts, Field mai |
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Payment |
T/T, L/C... |
Certificates |
Inspection Reports/ Quality Certificate |
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Keyword |
Granite Machine Base; Granite Mechanical Components; Granite Machine Parts; Precision Granite |
Certification |
CE, GS, ISO, SGS, TUV... |
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Delivery |
EXW; FOB; CIF; CFR; DDU; CPT... |
Drawings’ format |
CAD; STEP; PDF... |
• Unmatched Thermal Stability: Unlike metal rulers that expand and contract with temperature changes, our granite ruler maintains its dimensions across varying environments, ensuring consistent measurements day after day.
• Nano-Level Flatness: Achieved through meticulous hand-lapping by master craftsmen with over 30 years of experience, each ruler is verified using Swiss WYLER electronic levels and Renishaw laser interferometers.
• Durability Beyond Metal: Resistant to corrosion, rust, and magnetic fields, making it ideal for cleanroom and semiconductor applications where contamination is unacceptable.
• Multi-Surface Utility: All four faces are precision-ground, allowing versatile use as a reference edge, height gauge base, or alignment tool without needing multiple specialized instruments.
• Traceable Calibration: Every unit comes with a calibration certificate traceable to national metrology institutes, guaranteeing compliance with international standards like DIN876 and ASME B89.1.7.
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:
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Ship |
Qingdao port |
Shenzhen port |
TianJin port |
Shanghai port |
... |
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Train |
XiAn Station |
Zhengzhou Station |
Qingdao |
... |
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Air |
Qingdao Airport |
Beijing Airport |
Shanghai Airport |
Guangzhou |
... |
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Express |
DHL |
TNT |
Fedex |
UPS |
... |
Q: Can I use this ruler outdoors or in non-climate-controlled areas?
A: While granite is highly stable, we recommend using it in controlled environments for optimal performance. However, its low thermal expansion coefficient makes it far more tolerant of minor fluctuations than steel alternatives.
Q: How do I clean and maintain the ruler?
A: Use a soft, lint-free cloth with mild soap solution. Avoid abrasive cleaners or solvents. Store horizontally on a flat surface to prevent warping over time.
Q: Do you offer custom sizes or engravings?
A: Absolutely. Our facility supports monolithic processing up to 20 meters long and 4 meters wide. Contact us for bespoke solutions tailored to your unique application.
Q: Is the scale permanently marked?
A: Yes. The scale mark lines are either laser-engraved or mechanically etched into the stone, ensuring they won’t fade, peel, or wear off during regular use or cleaning.
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)
