UNPARALLELED LTD is one of the leading manufacturers and suppliers of ultra precision granite machine base in China. With abundant experience, we warmly welcome you to buy advanced ultra precision granite machine base made in China here from our factory. We also accept custom orders.
Engineered for Ultimate Stability in Ultra-Precision Systems
In ultra-precision industries, machine stability determines measurement accuracy and production yield. Even microscopic vibration or thermal deformation can lead to unacceptable errors.
The UNPARALLELED® Precision Granite Machine Base is engineered to provide a high-stability structural foundation for semiconductor equipment, optical inspection systems, and ultra-precision motion platforms.
Manufactured from high-density UNPARALLELED® black granite, this base offers superior thermal stability, vibration damping, and dimensional accuracy compared with traditional metal or marble structures.
Each granite base is precision machined, ground, and hand-lapped by experienced craftsmen to ensure micron-level accuracy and long-term reliability.
Product Visual & Structural Features
Monolithic Granite Structure
The base is manufactured from a single block of black granite, ensuring exceptional rigidity and eliminating internal stress that can occur in welded metal frames.
Precision Machined Mounting Interfaces
Multiple precision threaded inserts and mounting holes are integrated into the side walls and top surface. These interfaces allow seamless installation of:
- Linear motors
- Precision guide rails
- Air bearings
- Optical components
- Semiconductor motion systems
Multi-Level Structural Platform
The top surface includes raised precision platforms and recessed structural zones, which are commonly used to mount precision motion modules or measurement devices.
Industrial-Grade Granite Finish
The surface shows a deep black crystalline texture, typical of high-density granite used in metrology. The finish indicates fine grinding and lapping processes, ensuring extremely flat and stable surfaces.
quality control
Technical Specifications
|
BRAND |
UNPARALLELED |
MATERIAL |
Nature Granite |
|
APPLICATION |
Metrology, Inspection and Measuring Machines |
DENSITY |
3100kg/m3 |
|
CONDITION |
NEW CUSTOM |
COLOR |
Pure Black |
|
ORIGIN |
Jinan |
PRECISION |
1 μm or higher |
|
WARRANTY |
1 YEAR |
STANDARD |
DIN, GB, ASME,JIS... |
|
PACKAGING |
Custom Export Package |
CERTIFICATE |
ISO9001, CE... |
|
PAYMENT ITEM |
T/T, L/C... |
KEY WORD |
Ultra Precision Granite Machine Base |
|
MATERIAL |
Jinan, China; India; South Afica |
TECHNICAL |
Inpsection& Calibration& Assembly |
|
PRICE |
EXW, FOB, CIF, DAP, CPT... |
SERVICE |
Design drawings |
Key Advantages of UNPARALLELED® Granite Bases
Exceptional Vibration Damping
Natural granite provides superior vibration absorption compared with steel or cast iron, making it ideal for high-precision equipment such as:
- semiconductor inspection tools
- coordinate measuring machines (CMM)
- optical metrology systems
Ultra-Stable Thermal Performance
Granite has very low thermal expansion, which ensures dimensional stability even when ambient temperature fluctuates.
This is essential for nanometer-level measurement systems.
No Internal Stress Deformation
Unlike metal weldments, granite structures contain no residual internal stress, meaning the base will not deform over time.
This guarantees long-term geometric stability.
Superior Wear Resistance
Granite surfaces maintain accuracy even after years of operation.
They are non-corrosive, rust-free, and resistant to coolant or chemicals commonly used in precision manufacturing environments.
Custom Engineering Capability
UNPARALLELED can manufacture fully customized granite bases, including:
- threaded inserts
- vacuum channels
- air bearing mounting surfaces
- precision alignment features
- integrated granite assemblies
factory display


Typical Applications
This precision granite base is widely used in high-end industrial equipment, including:
Semiconductor Equipment
Wafer inspection systems
Lithography subsystems
Wafer probing machines
Metrology Equipment
Coordinate Measuring Machines (CMM)
Laser interferometer platforms
Surface metrology systems
Precision Motion Systems
Linear motor stages
XY motion tables
Air bearing positioning platforms
Optical Inspection Systems
AOI machines
Industrial CT systems
X-ray inspection equipment
Advanced Manufacturing
PCB drilling machines
Precision laser equipment
Lithium battery inspection systems
Why Precision Equipment Manufacturers Choose Granite Bases
Precision equipment manufacturers increasingly choose granite structures instead of metal frames because granite offers:
- Higher dimensional stability
- Better vibration damping
- Lower maintenance
- Long-term geometric accuracy
For industries where micron-level accuracy matters, granite becomes the preferred structural material.
services
Frequently Asked Questions
Why is granite better than metal for precision machine bases?
Granite provides superior vibration damping, corrosion resistance, and thermal stability. Unlike metal structures, granite does not suffer from internal stress deformation.
Can the granite base be customized?
Yes. UNPARALLELED specializes in custom precision granite structures designed according to customer drawings or equipment requirements.
What accuracy level can you achieve?
Depending on size and application, flatness can reach micron or even nanometer-level precision through precision grinding and manual lapping.
What industries use granite bases?
Typical industries include:
semiconductor manufacturing
optics and photonics
precision metrology
aerospace manufacturing
advanced automation systems
About UNPARALLELED®
UNPARALLELED Group is a global manufacturer of ultra-precision materials and components, including:
- Precision Granite
- Precision Ceramics
- Precision Metal
- Mineral Casting
- Carbon Fiber Precision Structures
Our facilities cover 200,000 m², with advanced machining capabilities for granite components up to 20 meters in length and 100 tons in weight.
The company holds ISO9001, ISO45001, ISO14001 and CE certifications, along with more than 20 international trademarks and patents.
certificates

Request a Custom Granite Base
If you are designing high-precision equipment and need a stable structural platform, our engineering team can help you develop the optimal granite solution.
Contact UNPARALLELED today to receive:
- Custom design consultation
- Technical drawings review
- Precision tolerance recommendations
- Fast quotation
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