Cast iron Square Box-Inspection Square Box

Cast iron Square Box-Inspection Square Box Standard:JB/T 3411.56-99 Material: HT200 Size:100mm-600mm

Cast iron Square Box-Inspection Square Box

 

Cast iron square box :High strength HT200

Cast iron square box structure, is a cavity cube with 6 working surface

 

 A: Description of square box

  Cast iron square box :High strength HT200

  Cast iron square box structure, is a cavity cube with 6 working surface wich are made of cast iron or steel, one of the working face has a v-slot. (Also can be produced to T-slot. According to the user's required to process order). Square box test of the environmental conditions: normal temperature and humidity. The working surface of cast iron square box may not have rust, scratches, cracks, dents and other defects affecting measurement performance. Non-working surface should be processed with clean sand painting and edge chamfering.

B.  Using of square box

Square box function: Cast iron square box is mainly used for the testing and marking of the parallel and vertical degree of each part. Square box is a kind of cavity cube with 6 working surface wich are made of cast iron or steel, one of the working  face has a v-slot.  

 

Type (mm)	Flate ness of workingsurface			Perpendicularity and parallelism of working surface, the parallelism of dovetall slot to the bottom plane and the side plane
	Precision grade (μm)
	1	2	3	1	2	3
100	3.5	7	15	7	15	30
150	4	9	17	8	18	35
200	4.5	10	20	9	20	40
250	5	11	22	10	22	45
300		12	25		25	50
350		13	27		27	55
400		15	30		30	60
500			35			70
600			40			80

Special Size can also produce as your need!

 

Cast iron Square Box-Inspection Square Box