{"id":1995,"date":"2026-03-05T08:19:51","date_gmt":"2026-03-05T00:19:51","guid":{"rendered":"https:\/\/jtlcnc.com\/?p=1995"},"modified":"2026-03-05T08:19:55","modified_gmt":"2026-03-05T00:19:55","slug":"granite-platform-bracket","status":"publish","type":"post","link":"https:\/\/jtlcnc.com\/ar\/2026\/03\/05\/granite-platform-bracket\/","title":{"rendered":"\u0642\u0648\u0633 \u0645\u0646\u0635\u0629 \u0627\u0644\u062c\u0631\u0627\u0646\u064a\u062a"},"content":{"rendered":"

Granite Platform Stands are specialized structures used in precision measurement and machining to support granite plates, ensuringir levelness and stability. The core design follows the principle of “three-point support auxiliary support,” combined with adjustable feet and vibration\/isolation measures, to prevent platform deformation and vibration nterference. The following are the classification, structure, selection, and installation key points of the system:<\/p>\n\n\n\n

I. Mainstream Types and Structures
Welded Steel Frame Stands (Indust General Use)
Material: Welded square steel\/steel channel, annealed to relieve stress; surface powder coating for rust prevention
Support Method: Standard 3-mainxiliary five-point support (3 main points form a stable triangle, 2 auxiliary points prevent warping, non-load-bearing)
Adjustment: Bottom equipped with heavy-duty adjustable leveing feet (M20 and above); top often features spherical joints nylon\/PTEE washers (to prevent metal electrochemical corrosion and fine-tune angle)
Application: Medium to large latforms (1000\u00d71000mm and above), CMM measurement, precision inspection<\/p>\n\n\n\n

Column-type \/ Split Stands (Small to Medium Platforms)
Structure: Independent adjusta columns, no need for a whole frame; some feature cast iron bases steel columns
Advantages: Small footprint, fast installation, expandable on demand
Application: Laboratories, small inspecon benches (400\u00d7400~800\u00d7800mm)<\/p>\n\n\n\n

Air-bearing \/ Vibration Isolation Stands (Ultra-precision Scenarios)
Config Air springs\/air pads, capable of isolating ground vibrations (frequency 2~20Hz), combined with an automatic leveling system
Precision: Suitable for Grade 0rms, optical measurement, nanoscale detection; higher price<\/p>\n\n\n\n

Simple L-type \/ Wall-mounted Stands (Civilian \/ Light Tooling)
Usage: Stone countertops, small ches; mostly pressed\/welded metal parts, fixed to walls or bases<\/p>\n\n\n\n

Granite Worktop Stands<\/p>\n\n\n\n

II. Key Technical Parameters and Selection Criteria
Load and Platform Siz The stand’s rated load capacity must be > platform self-weight maximum workpiece\/equipment weight; for large platforms (>2000mm), prioritize welded frames five-point sort
Leveling Adjustment Range: Adjustable foot travel is usually 15~30mm, meeting ground unevenness of \u00b110mm; after leveling, confirm with an electronic evel; Grade 00 platform levelness \u22640.005mm\/m
Material and Corrosion Resistance: Carbon steel stands require powder coating\/galvanization; direct rital clamping against granite is strictly prohibited; insulating washers (e.g., nylon, rubber) must be added
Vibration Control: Select rigid stands for ordinary workshops; opticnd metrology rooms must be equipped with vibration isolation pads\/air-bearing systems<\/p>\n\n\n\n

III. Installation and Leveling Steps
Ground Pre-treatment: Concrete floor strength C25 flatness \u22642mm\/m; secondary grouting foundation if necessary
Position the stand, roughly level the three main supports first, then gently place the granite platform
Fine-tune with an elecel following the sequence “corners first then center, longitudinal first then transverse”; each micro-adjustment \u22641mm, wait 5 minutes after adjustment before measuring again
Lock eveling feet, auxiliary points should gently contact (must not be jammed); finally re-measure flatness and levelness<\/p>\n\n\n\n

IV. Common Standards and Maintenance
Relevant Stadards: GB\/T 22095 “Rock Plates”, JJG 117 “Plate Verification Regulations”
Maintenance: Regularly check if leveling feet are loose; avoid long-tee-sided overloading of the stand; when environmental humidity > 60%, additional rust prevention treatment is required for the s<\/p>\n\n\n\n

Granite\u00a0Platform Bracket Selection Quick Reference Table<\/strong><\/p>\n\n\n\n

Application Scenario<\/td>Recommended Bracket Type<\/td>Support Method<\/td>Additional Requirements<\/td><\/tr>
Coordinate Measuring (1500\u00d72000mm)<\/td>Welded Frame Bracket<\/td>3 Main + 2 Auxiliary Five-Point Support<\/td>Adjustable Foot + Spherical Joint + Nylon Pad<\/td><\/tr>
Laboratory Grade 00 Small Platform<\/td>Split Column Bracket<\/td>Three-Point Support<\/td>Equipped with Vibration Isolation Pad<\/td><\/tr>
Optical Inspection\/Nanometer Measurement<\/td>Pneumatic Floating Vibration Isolation Bracket<\/td>Three-Point Positioning + Automatic Leveling<\/td>Vibration Isolation Rate \uff1e 90%<\/td><\/tr>
Workshop Routine Inspection<\/td>\u0642\u0648\u0633 \u0625\u0637\u0627\u0631 \u0641\u0648\u0644\u0627\u0630\u064a \u0645\u0628\u0633\u0637 \u0627\u0644\u0645\u0642\u0637\u0639 \u0627\u0644\u0645\u0628\u0633\u0637<\/td>\u062f\u0639\u0645 \u062e\u0645\u0627\u0633\u064a \u0627\u0644\u0646\u0642\u0627\u0637<\/td>\u0631\u0630\u0627\u0630 \u0628\u0644\u0627\u0633\u062a\u064a\u0643 \u0645\u0636\u0627\u062f \u0644\u0644\u0635\u062f\u0623<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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