Custom Granite Gantry Frame & Ultra-Precision Machine Base

This custom-designed frame leverages the superior material science and manufacturing expertise of ZHHIMG®, placing it at the forefront of ultra-precision components.

1. Material Superiority: ZHHIMG® Black Granite

We utilize our proprietary ZHHIMG® Black Granite, renowned globally for its exceptional physical properties that outperform many common European and American granite variants.

●   Exceptional Density: Boasting a high density of approximately 3100 kg/m³, our granite minimizes porosity and maximizes thermal inertia, providing superior resistance to environmental absorption and temperature gradients.

●   Low Thermal Expansion: Granite's naturally low Coefficient of Thermal Expansion (CTE) ensures that the critical dimensions of the gantry—its parallelism and perpendicularity—remain stable across typical operating temperature ranges, minimizing thermal drift errors that plague metal frames.

●   High Damping Capacity: The intrinsic crystalline structure of the granite rapidly absorbs and dissipates mechanical vibrations (damping), effectively creating a vibration-insulated platform for sensitive components like sensors, optics, and linear motors mounted within the frame.

2. Structural Precision and Manufacturing Capability

This complex component demonstrates the world-class processing capacity required for ultra-precision integration.

●   Monolithic and Modular Design: The base structure features intricate internal cutouts and T-slots (likely for cable management, weight reduction, or internal air bearing applications), manufactured on equipment capable of processing monolithic components up to 100 tons, ensuring maximum rigidity and minimal structural joints.

●   Certified Geometric Accuracy: The base and vertical supports are manufactured and verified in our 10,000 m² temperature- and humidity-controlled clean rooms, ensuring geometric tolerances meet or exceed the most stringent international standards (including DIN, ASME, and JIS).

●   Precision Insertion and Assembly: Note the presence of numerous threaded inserts (often stainless steel or aluminum) visible around the base and vertical posts. These are installed with micron-level positional accuracy, ready for the direct assembly of air bearings, linear guides, and custom fixtures.

3. Unmatched Finishing and Traceability

Our products embody the principle that "The precision business can't be too demanding."

●   Hand-Lapped Surfaces: The critical mounting surfaces for the gantry's bridge and base are finished by our master technicians—who often possess over 30 years of experience—achieving flatness and straightness tolerances at the sub-micron or nanometer level using manual lapping techniques.

●   Metrology Validation: Every critical dimension and geometric relationship is verified using the most advanced equipment, including Reinshaw Laser Interferometers and Swiss WYLER electronic levels, with calibration certificates traceable back to national metrology institutes.