precision surface plate

Short Description:

Granite surface plates—commonly but inaccurately referred to as “marble platforms”—serve as primary precision reference standards in metrology, widely employed in precision engineering, instrumentation, electronics manufacturing, and scientific research laboratories. Fabricated from naturally aged, geologically stable granite with low thermal expansion and high dimensional stability, these plates undergo rigorous multi-stage lapping and calibration processes to achieve stringent flatness tolerances (typically ≤0.5 μm per 100 mm), ensuring long-term metrological reliability and traceable measurement accuracy.


  • Brand: ZHHIMG 鑫中惠 Sincerely | 中惠 ZHONGHUI IM
  • Min. Order Quantity: 1 Piece
  • Supply Ability: 100,000 Pieces per Month
  • Payment Item: EXW, FOB, CIF, CPT, DDU, DDP...
  • Origin: Jinan city, Shandong Province, China
  • Executive Standard: DIN, ASME, JJS, GB, Federal...
  • Precision : Better than 0.001mm (Nano technology)
  • Authoritative Inspection Report: ZhongHui IM Laboratory
  • Company Certificates: ISO 9001; ISO 45001, ISO 14001, CE, SGS, TUV, AAA Grade
  • Packaging : Custom Export Fumigation-free Wooden Box
  • Products Certificates: Inspection Reports; Material Analysis Report; Certificate of conformity;Calibration Reports for Measuring Devices
  • Lead Time: 10-15 workdays
  • Product Detail

    Quality Control

    Certificates & Patents

    ABOUT US

    CASE

    Product Tags

    Application

    1. Wafer inspection base: Provides an absolute level reference plane for wafer thickness measurement and surface defect analysis.
    2. Structural components for lithography/etching equipment: Serve as the base or column of a precision motion platform, supporting high-precision positioning under high-frequency reciprocating motion.
    3. Chip packaging and die bonding reference: In precision die bonding machines, it offers a high-hardness, wear-resistant work surface to ensure packaging accuracy.
    4. CMM platform: Provides a high-standard geometric tolerance inspection environment for semiconductor molds and core components.

    Overview

    Model

    Details

    Model

    Details

    Size

    Custom

    Application

    CNC, Laser, CMM...

    Condition

    New

    After-sales Service

    Online supports, Onsite supports

    Origin

    Jinan City

    Material

    Black Granite

    Color

    Black / Grade 1

    Brand

    ZHHIMG

    Precision

    0.001mm

    Weight

    ≈3.05g/cm3

    Standard

    DIN/ GB/ JIS...

    Warranty

    1year

    Packing

    Export Plywood CASE

    After Warranty Service

    Video technical support, Online support, Spare parts, Field mai

    Payment

    T/T, L/C...

    Certificates

    Inspection Reports/ Quality Certificate

    Keyword

    Granite Surface Plate; Granite Measuring; Granite Machine Parts; Precision Granite

    Certification

    CE, GS, ISO, SGS, TUV...

    Delivery

    EXW; FOB; CIF; CFR; DDU; CPT...

    Drawings’ format

    CAD; STEP; PDF...

    Main Features

    1. Nanometer-level flatness and stability:Natural granite achieves 000-grade (AA) flatness after precision grinding. Its high damping absorbs micro-vibrations, ensuring stable wafer handling.

    2. Low thermal expansion:Granite’s coefficient of linear expansion is far lower than metal’s—minimizing thermal drift and maintaining measurement consistency in cleanroom environments.

    3. Non-magnetic and insulating:Naturally non-magnetic and electrically insulating, granite eliminates electromagnetic interference—ideal for SEM, ultrasonic testing, and other sensitive electronics.

    4. Optimized for air bearings:Its dense, smooth surface provides ideal support for air-bearing motion—enabling frictionless, sub-micron scanning with long-term reliability.

    Quality Control

    We use various techniques during this process:

    ●  Optical measurements with autocollimators

    ●  Laser interferometers and laser trackers

    ●  Electronic inclination levels (precision spirit levels)

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    Quality Control

    1. Documents together with products: Inspection reports + Calibration reports(measuring devices) + Quality Certificate + Invoice + Packing List + Contract + Bill of Lading(or AWB).

    2. Special Export Plywood Case: Export fumigation-free wooden box.

    3. Delivery:

    Ship

    Qingdao port

    Shenzhen port

    TianJin port

    Shanghai port

    ...

    Train

    XiAn Station

    Zhengzhou Station

    Qingdao

    ...

     

    Air

    Qingdao Airport

    Beijing Airport

    Shanghai Airport

    Guangzhou

    ...

    Express

    DHL

    TNT

    Fedex

    UPS

    ...

    Delivery

    Service

    1. We will offer technical supports for assembly, adjustment, maintain.

    2. Offering the manufacturing &inspection videos from selecting material to delivery, and customers can control and know every detail at anytime anywhere.


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  • QUALITY CONTROL

    If you can’t measure something, you can’t understand it!

    If you can’t understand it.you cant control it!

    If you can’t control it, you can’t improve it!

    More information please click here: ZHONGHUI QC

    ZhongHui IM, your partner of metrology, help you succeed easily.

     

    Our Certificates & Patents:

    ISO 9001, ISO45001, ISO14001,  CE, AAA Integrity Certificate, AAA-level enterprise credit certificate…

    Certificates and Patents are an expression of a company’s strength. It’s society’s recognition of the company.

    More certificates please click here: Innovation & Technologies – ZHONGHUI INTELLIGENT MANUFACTURING (JINAN) GROUP CO., LTD (zhhimg.com)

     

    I. Company Introduction

    Company Introduction

     

    II. WHY CHOOSE USWhy choose us-ZHONGHUI Group

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