Cast iron square box

Cast iron square boxes are mainly used for checking the parallelism and verticality of components and supporting workpieces during marking.They are generally cubes or rectangles with the same side length.Weiyue Machinery can produce various specifications and equal height square boxes and rectangular cylinders according to user requirements.

1.A square box is a specific six working face cavity cube made of cast iron,with a V-shaped groove on one of the working faces.The environmental conditions for square box calibration are normal temperature and humidity.

2.The cast iron square box requires that each working surface must be free of rust,scratches,cracks,depressions,and other defects that affect the metrological performance.Non working surfaces should be sandblasted and painted with chamfered edges.There should be a label on the inner wall of the square box,indicating the specifications,dimensions,level,factory number,and manufacturer name.

3.Precision of cast iron square box:For scraping and developing square boxes,in addition to verifying flatness,contact spots should also be verified using the coloring method.The number of spots in any square with a side length of 25mm is:no less than 25 points for level 1 and level 2;Level 3 with no less than 20 points.

Model and specifications of cast iron square box: