Precision Granite Straight Edge
True High-Density Granite Material
• Made from ZHHIMG® Black Granite, density ≈ 3100 kg/m³
• Natural granite structure, not marble, ensuring real metrology performance
• Non-magnetic, corrosion-resistant, and aging-free
• Excellent thermal stability with minimal environmental sensitivity
Ultra-High Straightness Accuracy
• Precision grinding combined with manual hand-lapping
• Straightness accuracy available down to 1 μm (custom grades available)
• Maintains accuracy over long-term use without deformation
Superior Vibration Damping
• Granite’s internal damping outperforms steel and cast iron
• Ideal for high-precision measurement environments
• Ensures stable contact and reliable readings during inspection
Ergonomic & Functional Design
• Optimized cross-section for stiffness and weight balance
• Precision-machined reference edges
• Optional handling holes, mounting holes, or lifting interfaces
• Suitable for horizontal or vertical measurement setups
|
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 Straight Edge is widely used in:
• Machine tool installation and alignment
• Linear guideway and ball screw straightness inspection
• CMM and metrology equipment calibration
• Precision granite base and structure assembly
• Optical equipment and laser system alignment
• Surface plate verification
• High-end manufacturing quality control laboratories
It serves as a primary reference standard, transferring straightness accuracy directly to machines and assemblies.
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 |
... |
Granite straight edges require minimal maintenance, but correct handling ensures long-term precision:
• Clean the reference edge with a lint-free cloth before and after use
• Use neutral cleaning agents only; avoid acidic or alkaline chemicals
• Store on dedicated supports to prevent uneven loading
• Avoid impact or concentrated point loads on reference edges
• Periodically re-verify straightness in critical applications
With proper care, the straightness accuracy remains stable for decades of service life.
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)
