High-Rigidity Precision Granite Bridge for Ultra-Precision Linear Motor Stages
In the world of ultra-precision manufacturing, every nanometer counts. Traditional metal bases simply cannot keep up with the demands of modern semiconductor and optical inspection equipment due to thermal expansion and micro-vibrations.
Introducing the ZHHIMG® Precision Granite Bridge. Milled from our proprietary, high-density black granite (approx. 3100 kg/m³), this component is designed to serve as the unwavering backbone for your most sensitive machinery. Whether you are building a high-throughput PCB drill, an AOI optical inspection system, or a next-generation CMM, this granite bridge provides the absolute thermal neutrality and vibration damping necessary to achieve superior yield rates.
We don't just cut stone; we craft the foundation of precision.
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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... |
1. The granite is after a long-term natural aging, the organizational structure is uniform, the expansion cofficient is small, the internal stress completely disappeared.
2. Not afraid of acid and alkali corrosion, will not rust; do not need oiling, easy to maintain, long service life.
3. Not limited by the constant temperature conditions, and can maintain the high precision at room temperature.
No be magnetized, and can move smoothly while measuring, no tight feeling, free of the affect of moisture, good flatness.
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 granite superior to mineral casting or metal for precision stages?
A: Granite has the lowest coefficient of thermal expansion and exceptional vibration damping properties. Unlike metal, it will not warp due to friction heat, and unlike mineral casting, it offers vastly superior long-term rigidity and wear resistance.
Q: Can ZHHIMG® machine complex air bearing grooves directly into the granite?
A: Absolutely. We are one of the few manufacturers globally capable of integrating precise air bearing tracks and vacuum adsorption channels directly into granite components, providing a true single-piece high-precision solution.
Q: How does ZHHIMG® ensure quality control and traceability?
A: Every single dimension and flatness measurement is conducted in our 10,000m² constant temperature & humidity workshop using Swiss WYLER electronic levels and Renishaw laser interferometers. All measuring instruments are calibrated and traceable to the National Metrology Institute, and we operate under ISO 9001 & ISO 14001 standards.
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)
