Custom Machined Black Granite Plate

• Material: UNPARALLELED® Black Granite
• Structure: Multi-hole precision plate with central large opening
• Tolerance Options:

Flatness: up to 0.001 mm

Parallelism & perpendicularity: per DIN, JIS, ASME, or GB standards

• Finish: Fine-polished surfaces with uniform texture
• Mounting Options:

Helicoils or threaded inserts

Dowel-pin locating holes

Stainless/Brass/Custom inserts

• Quality Control: Every piece undergoes strict dimensional and surface-quality inspection

1. Superior Material – UNPARALLELED® Black Granite

• Density significantly higher than typical European and American granite
• Excellent dimensional stability and thermal resistance
• Non-magnetic, corrosion-free, and unaffected by humidity
• Ideal for ultra-precision assembly and long-term equipment reliability

2. High-Accuracy Machining

Produced in our temperature-controlled workshops using advanced CNC machines and ultra-large precision surface grinders from Taiwan:

• Flatness achievable down to micron or sub-micron levels
• Fine-finished holes, slots, and countersinks
• Sharp, clean edges with no chipping
• Stable tolerances verified with international metrology standards
• Every component is inspected using instruments from Renishaw, WYLER, Mahr, and Mitutoyo, ensuring traceability to national standards.

3. Customizable Geometry

This granite plate supports fully customized designs:

• Multiple precision-machined bores
• Central through-hole for optical, mechanical, or alignment functions
• Threaded inserts and bushings available in stainless steel or brass
• Chamfers, grooves, and dowel-pin holes available per request

Thanks to the material's exceptional physical and mechanical properties, this component is widely used across high-precision fields:

• Semiconductor equipment (lithography, exposure, wafer handling)
• Optical & laser equipment (AOI, vision alignment, femtosecond laser systems)
• Metrology equipment (CMM, interferometry, electronic levels)
• Precision CNC and automation systems
• XY motion stages and linear motor platforms
• Scientific research laboratories
• Test and measurement fixtures

The rigidity and vibration-absorption of UNPARALLELED® granite make it ideal for equipment requiring long-term accuracy and thermal consistency.

Custom Machined Black Granite Plate require minimal maintenance. To ensure long service life and stable accuracy:

1.Keep the surface clean

Remove dust, oil, and debris using ethanol or a non-abrasive cleaner.

2.Avoid heavy impact

Do not drop tools or metal objects on the surface to prevent chipping.

3.Maintain a stable environment

Store in a low-humidity, temperature-stable area for best performance.

4.Periodic recalibration (if used in metrology)

For measurement applications, recalibrate the surface plate annually or depending on usage frequency.

5.Use protective covers

When the component is not in operation, cover it to avoid contamination.

The natural granite material ensures long-term performance without rust, deformation, or warping-ideal for precision machinery.

Why Choose UNPARALLELED®?

• Industry-leading manufacturer with ISO 9001, ISO 14001, ISO 45001, CE certifications
• Over 20 international patents & trademarks
• World-class machining capacity (single-piece up to 100 tons, 20 m length)
• Ultra-precision measurement conditions (temperature-controlled, vibration-isolated workshops)
• Trusted by global leaders including GE, Samsung, Apple, Bosch, SCHUNK, THK, WYLER, and major metrology institutes

UNPARALLELED Group is recognized worldwide for setting the benchmark in Custom Machined Black Granite Plate manufacturing.

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