The Cast Iron Inspection Platform is an indispensable basic tool in mechanical manufacturing, quality inspection, and precision assembly. With its high stability, excellent flatness accuracy, and deformation resistance, it is widely used in the industrial field. The following are its main uses and characteristics:
1、 Core purpose
1. Precision testing benchmark
Geometric tolerance measurement: As a high-precision reference plane, it is used to detect the flatness, parallelism, perpendicularity, straightness and other geometric tolerances of workpieces.
Surface quality assessment: In conjunction with optical instruments (such as laser interferometers) or mechanical measuring tools (such as micrometers, height gauges), detect the surface roughness or microscopic defects of the workpiece.
2. Marking and positioning of workpieces
Precision marking: Use tools such as height rulers and marking needles on the platform to mark the contour and centerline of the blank or semi-finished product, ensuring subsequent processing accuracy.
◦ 3D positioning: Combining auxiliary tools such as square boxes and V-shaped blocks to spatially locate complex workpieces and assist in drilling, milling, and other processes.
3. Assembly and Calibration
Mechanical component assembly: As an assembly reference platform, it ensures precise alignment and assembly of components such as gearboxes and engines.
Equipment calibration: used to calibrate the plane accuracy or levelness of machine tool guides and measuring instruments (such as coordinate measuring machines).
4. Experiment and Testing
Mechanical testing: Load bearing vibration testing, material fatigue testing, and other experiments. The high rigidity of the platform can reduce external interference.
Optical testing: used as a stable support surface in an optical laboratory to place precision optical components or testing equipment.
5. Mold manufacturing and inspection
Mold research and assembly: Check the fit of the mold parting surface to ensure the accuracy of mold closure.
Mold repair: used as a reference surface to detect mold wear or deformation and guide repair work.

2、 Core Features
1. High precision and stability
Made of high-strength cast iron (such as HT200/HT250), it undergoes aging treatment to eliminate internal stress and is not easily deformed after long-term use.
Precision scraping or grinding processing, with a flatness of up to level 0 (± 0.01mm) or level 1 (± 0.02mm), meeting the ISO 8512 standard.
2. Wear resistant and corrosion-resistant
The surface can be chrome plated or coated with an anti rust layer to enhance wear resistance and environmental corrosion resistance, extending the service life.
3. Strong load capacity
Suitable for heavy workpiece inspection, such as large castings, machine tool beds, etc., with local pressure up to tens of tons.
4. Modular expansion
◦ The detection area can be expanded by splicing multiple platforms to meet the needs of ultra large workpieces.

3、 Typical application industries
Mechanical manufacturing: quality inspection and assembly of machine tools, automotive parts, and construction machinery.
Aerospace: Precision testing of aircraft engine blades and fuselage structural components.
Mold industry: Research and dimension verification of injection molds and die-casting molds.
Research institutes: laboratory material testing, precision instrument calibration.
Energy equipment: assembly and testing of wind turbine gearboxes and nuclear power valves.
4、 Selection and maintenance suggestions
1. Key selection points
Accuracy level: Choose level 0 (laboratory level) or level 1 (workshop level) according to the testing requirements.
Size specifications: Common specifications range from 300 × 200mm to 4000 × 2000mm, and need to match the size of the workpiece.
Surface treatment: Zinc plating or anti rust paint can be applied in humid environments.
2. Maintenance and upkeep
Regular cleaning: Clean the chips and oil stains in a timely manner after use to avoid scratching the surface of the platform.
Anti rust protection: Apply anti rust oil or cover with a dust cover, and store in a dry environment for long-term storage.