Granite Straightedge Manufacturer

Granite Straightedge Manufacturer

We are a specialized manufacturer of precision granite straightedges,producing foundational metrology tools for industries where accuracy and stability are paramount.Our focus is on the engineering and craftsmanship of granite straightedges from raw stone to finished master standard.

Our Manufacturing Core

Vertical Integration:We control the manufacturing process from the selection of raw granite blocks through precision machining,hand-lapping,and final certification.

Material Science:We utilize select,high-density granite(typically fine-grained black granite)that is quarried for its optimal stability,low thermal coefficient,and superior internal integrity.

Master Craftsmanship:Our production combines CNC machining for initial form with skilled,manual lapping and scraping to achieve the final geometric precision.This blend ensures both efficiency and the highest level of finish.

Product Range&Capability

We manufacture a complete range of straightedge types:

Granite Straightedges:Standard rectangular and'I'-beam profiles in lengths from small bench tools to several meters.

Granite Square Straightedges:Incorporating a true 90-degree reference edge for combined straightness and squareness verification.

Box Beam&Custom Designs:Engineered for maximum stiffness-to-weight ratios or tailored to unique fixture and inspection system requirements.

Surface Plate Companions:Straightedges designed specifically for the verification and reconditioning of granite surface plates.

Precision Engineering Process

Block Selection&Stress Relief:Raw blocks are selected and naturally seasoned to release internal stresses.

Precision Machining:Initial shaping is performed with diamond-tool CNC equipment to establish basic geometry.

Hand-Lapping&Scraping:Critical reference surfaces and edges are finished by master technicians to achieve specified flatness,straightness,and edge acuity.

Rigorous Metrology:Each straightedge undergoes stringent inspection,often using laser interferometers or auto-collimators,against its stated tolerances.

Certification&Packaging:Final products are cleaned,documented,and securely packed in custom protective crates for shipment.