The Process of Customizing a Precision Granite Surface Plate

In the ultra-precision industry, custom granite surface plates are the foundation of accuracy. From semiconductor manufacturing to metrology labs, every project requires solutions tailored to specific needs. At ZHHIMG®, we provide a comprehensive customization process that ensures accuracy, stability, and long-term reliability.

So, how exactly is a precision granite surface plate customized? Let’s walk through the process step by step.

1. Requirement Confirmation

Every project begins with a detailed consultation. Our engineers work closely with customers to understand:

• Application field (e.g., CMM, optical inspection, CNC machinery)

• Size and load requirements

• Flatness tolerance standards (DIN, JIS, ASME, GB, etc.)

• Special features (T-slots, inserts, air bearings, or assembly holes)

Clear communication at this stage ensures that the final granite surface plate meets both technical requirements and operational expectations.

2. Drawing & Design

Once requirements are confirmed, our design team creates a technical drawing based on customer specifications. Using advanced CAD software, we design:

• The surface plate’s dimensions

• Structural reinforcements for stability

• Slots, threads, or holes for assembly and measurement tools

At ZHHIMG®, design is not just about dimensions—it’s about predicting how the plate will perform under real working conditions.

3. Material Selection

ZHHIMG® uses only premium black granite, known for its high density (~3100 kg/m³), low thermal expansion, and excellent vibration damping. Unlike marble or lower-grade stone used by small manufacturers, our granite ensures long-term dimensional stability.

By controlling the raw material source, we guarantee that every surface plate has the uniformity and strength required for ultra-precision applications.

4. Precision Machining

With requirements and drawings approved, production begins. Our facilities are equipped with CNC machines, large-scale grinders, and ultra-flat lapping machines capable of processing granite up to 20m length and 100 tons in weight.

During machining:

• Rough cutting defines the basic shape.

• CNC grinding ensures dimensional accuracy.

• Hand lapping by skilled technicians achieves nanometer-level flatness.

This combination of advanced machinery and craftsmanship is what makes ZHHIMG® surface plates stand out.

5. Inspection & Calibration

Every granite surface plate undergoes strict metrology testing before delivery. Using world-class instruments such as:

• German Mahr micrometers (0.5μm accuracy)

• Swiss WYLER electronic levels

• Renishaw laser interferometers

All measurements are traceable to national and international standards (DIN, JIS, ASME, GB). Each plate is delivered with a calibration certificate to guarantee accuracy.

6. Packaging & Delivery

Finally, surface plates are carefully packaged to prevent damage during transportation. Our logistics team ensures safe delivery to customers worldwide, from Asia to Europe, the US, and beyond.

Why Custom Granite Surface Plates Matter

A standard surface plate may not always meet the unique requirements of advanced industries. By offering customization, ZHHIMG® provides solutions that improve:

• Measurement accuracy

• Machine performance

• Operational efficiency

From requirement confirmation to final inspection, every step is designed to deliver precision that lasts for decades.

Conclusion
The customization of a granite surface plate is not a simple manufacturing task—it is a precision-driven process that combines advanced technology, high-quality materials, and skilled craftsmanship. At ZHHIMG®, we take pride in being a trusted partner for global companies that demand nothing less than perfection.