Steel equal height blocks

Steel equal height blocks are precision fixtures used in mechanical processing, assembly, and testing processes to support workpieces or establish a unified height reference. They are mainly made of high-strength alloy structural steel (such as 45 steel, Cr12) and are forged, quenched and tempered, precision ground, and quenched. They have high hardness (HRC55-60) and excellent wear resistance, and can maintain the stability of height and size during long-term use.

Its structure is mostly cubic or rectangular block shaped, and some models are designed with positioning slots or through holes for easy combination with other fixtures. The working surface (top and bottom) is precision ground, and the flatness error can be controlled within 0.005mm/m. The height difference of the same group of equal height blocks does not exceed 0.003mm, ensuring that a unified support plane can be formed when multiple blocks are used in combination. The height range of common specifications varies from 10mm to 500mm, and can be flexibly selected for single or multiple stacked use according to the workpiece support requirements.

To ensure accuracy, steel and other high blocks need to undergo multiple aging treatments and low-temperature tempering during the processing to eliminate internal stress and avoid deformation caused by temperature changes or stress. When in use, it can be placed on the workbench as a support benchmark for the workpiece, and the support height can be adjusted by adding or removing blocks. It can also be used in conjunction with tools such as a dial gauge and micrometer to detect the flatness or parallelism of the workpiece. For large workpieces, multiple sets of equally high blocks evenly distributed for support can effectively avoid bending deformation caused by the weight of the workpiece.

Steel and other high blocks are widely used in fields such as mold manufacturing, precision machine tool assembly, aerospace component processing, etc., especially suitable for scenarios with strict requirements for support height accuracy. They are important auxiliary tools for improving workpiece processing consistency and detection accuracy. Compared to tall blocks such as cast iron, steel materials have higher hardness and are more suitable for use in heavy-duty machining environments.