Precision Granite Straightedge
The ZHHIMG® Precision Granite Straightedge is an ultra-stable measuring instrument designed for high-accuracy alignment, calibration, and precision reference applications. Manufactured from premium ZHHIMG® black granite—renowned for its exceptional density (~3100 kg/m³) and dimensional stability—this product delivers outstanding flatness, rigidity, and wear resistance for precision industries worldwide.
Unlike common marble or low-grade granite substitutes used by small manufacturers, ZHHIMG® strictly selects high-quality black granite to ensure long-term stability and reliability under demanding measurement conditions.
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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... |
● Superior Material Quality:
Made from ZHHIMG® black granite with fine and uniform grain structure, low thermal expansion, and high density, providing superior dimensional stability and vibration damping compared to European black granite or marble.
● High Precision:
Precision lapping by hand by master craftsmen with over 30 years of experience. Each surface is finished to micron-level accuracy, achieving flatness tolerances down to 1 µm or better.
● Thermal and Corrosion Resistance:
Granite is naturally non-magnetic, non-rusting, and corrosion-resistant, ensuring stable measurements even in humid or temperature-sensitive environments.
● Excellent Vibration Damping:
Ideal for supporting sensitive measurement and laser equipment due to its natural ability to absorb vibrations without deformation.
● Certified Quality:
Every ZHHIMG® product is calibrated with world-class metrology instruments such as Mitutoyo, WYLER, and Renishaw laser interferometers, traceable to national metrology standards.
ZHHIMG is certified under ISO 9001, ISO 14001, ISO 45001, and CE.
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 |
... |
As one of the world’s leading manufacturers of precision granite components, ZHHIMG® combines advanced CNC processing with hand-finishing craftsmanship. Our factory can produce single granite components up to 20 m in length and 100 tons in weight, with monthly output among the highest worldwide.
Backed by partnerships with international institutes—such as the National Metrology Institutes of the UK, USA, France, and Germany—and trusted by global industry leaders including GE, Bosch, THK, and Samsung, ZHHIMG® has become a recognized synonym for precision granite excellence.
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)
