High-Precision Granite Air Bearing Rotary Table for Ultra-Precision Metrology
In the world of ultra-precision engineering, material is everything. Unlike cast iron or aluminum, high-density black granite (approx. 3100kg/m³) offers:
- • Superior Vibration Damping: Granite naturally absorbs external vibrations 6x better than cast iron, ensuring your measurements remain steady.
- • Thermal Stability: A low coefficient of thermal expansion means your table stays true even with minor temperature fluctuations in the lab.
- • Zero Friction Motion: When paired with our air bearing technology, the granite stage floats on a cushion of air, eliminating mechanical wear and stick-slip motion for nanometer-level repeatability.
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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... |
- • Segmented Granite Top: The segmented design reduces internal stress and allows for thermal expansion management, maintaining flatness under varying loads.
- • Versatile Mounting Grid: The dense array of threaded holes on the top surface allows you to mount various fixtures, clamps, or optical sensors without drilling into the precision surface.
- • Pneumatic Integration: The integrated air fitting ensures smooth, oil-free operation, making it perfect for cleanroom and semiconductor environments where contamination is a concern.
- • Octagonal Stable Base: The heavy, octagonal granite base maximizes the footprint for stability while minimizing the center of gravity, preventing top-heavy setups from wobbling.
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: Why is there a gap/segment in the rotary table top?
A: The segmented design is intentional. It helps relieve internal stress within the granite and accommodates thermal expansion, ensuring the table remains perfectly flat over time.
A: Yes, we offer specialized vacuum-compatible versions of our granite air bearing tables for semiconductor vacuum chamber applications. Please contact us for details.
A: Standard configurations ship within 4-6 weeks. Custom sizes or specific accuracy requirements may require 8-10 weeks for manufacturing and calibration.
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)
