How to Choose Between Single-Sided and Double-Sided Granite Precision Platforms

When selecting a granite precision platform, one important factor to consider is the number of working surfaces — whether a single-sided or double-sided platform is most suitable. The right choice directly impacts measuring accuracy, operation convenience, and overall efficiency in precision manufacturing and calibration.

Single-Sided Granite Platform: The Standard Choice

A single-sided granite surface plate is the most common configuration in metrology and equipment assembly. It features one high-precision working surface used for measurement, calibration, or component alignment, while the bottom side serves as a stable support.

Single-sided plates are ideal for:

• Measuring laboratories and CMM base platforms

• Machining and inspection stations

• Tool calibration and fixture assembly
  They provide excellent rigidity, accuracy, and stability, especially when fixed to a rigid stand or leveling frame.

Double-Sided Granite Platform: For Special Precision Applications

A double-sided granite platform is designed with two precision surfaces, one on the top and one on the bottom. Both are precision-lapped to the same tolerance level, allowing the platform to be flipped or used from either side.

This configuration is particularly suitable for:

• Frequent calibration tasks requiring two reference planes

• High-end laboratories that need continuous measurement without interruption during maintenance

• Precision assembly systems that demand dual reference faces for top and bottom alignment

• Semiconductor or optical equipment where vertical or parallel precision references are required

The double-sided design maximizes versatility and cost efficiency — when one side undergoes maintenance or resurfacing, the other side remains ready for use.

Choosing the Right Type

When deciding between single-sided and double-sided granite platforms, consider:

1. Application requirements – Whether you need one or two reference surfaces for your process.

2. Frequency of use and maintenance – Double-sided platforms offer extended service life.

3. Budget and installation space – Single-sided options are more economical and compact.

At ZHHIMG®, our engineering team provides custom solutions based on your measurement needs. Each platform is crafted from high-density black granite (≈3100 kg/m³), offering exceptional flatness, vibration damping, and long-term stability. All platforms are manufactured under ISO 9001, ISO 14001, and ISO 45001 quality systems and CE certification.