Granite plate cost

Granite Surface Plate Pricing Guide

Understanding Investment in Precision

Introduction to Cost Factors

The price of a granite surface plate is a function of multiple precision engineering variables.Unlike commodity products,cost scales with geometric accuracy,material quality,and certification rigor.This guide provides transparent pricing structures to facilitate informed procurement decisions.

Primary Cost Determinants

1.Accuracy Grade

The single most significant cost driver.Each grade improvement requires exponentially more manufacturing time and yields higher rejection rates.

Grade B(Toolroom Grade):±0.10 mm/m(±.004"/ft)flatness

Cost Range:$50-$150 per square foot

Typical Application:Workshop layout,general reference,non-critical fixturing

Grade A(Inspection Grade):±0.05 mm/m(±.002"/ft)flatness

Cost Range:$150-$400 per square foot

Typical Application:Quality control departments,production inspection,most common industrial standard

Grade AA(Laboratory Grade):±0.025 mm/m(±.001"/ft)flatness

Cost Range:$400-$900 per square foot

Typical Application:Calibration laboratories,high-precision manufacturing,optical alignment

Cost Range:$900-$2,500+per square foot

Typical Application:National standards labs,semiconductor manufacturing,primary reference standards

2.Size and Thickness

Base Price Calculation:Typically priced per square foot/area,with minimum charges for small plates

Thickness Premium:Thickness increases material cost and processing time(add 15-40%for thicker sections)

Large Format Surcharge:Plates exceeding 4'×8'may incur additional handling and machining premiums