Cast Iron Hollow Box Parallels
Jash Cast Iron Box Parallels are extensively used in machine shop for set up in machining operations. These are also used as height blocks for scribing and inspection and for building up the height of components on machine table.
- Made from close grained plain cast iron conforming to grade FG: 220 of IS: 210 – 1978.
- Castings stress relieved to relieve internal stresses.
- Hand scraped surface finish.
- Offered as matched pair.
- Standard Sizes and accuracy as under
- Offered with hand scrapped finish or ground finish to requisite tolerances as per IS.
- Tapped holes / T-slots / Slots can be provided on request at extra cost.
- Box Parallels can be offered as matched pairs on request at extra cost.
- Custom built Solid Parallels and Blocks are also manufactured, please inquire mentioning size and accuracy.
| Size in mm | Tolerance on T, W & L |
| T x W x L | Microns |
| 100 x 100 x 100 | ± 20 |
| 100 x 150 x 150 | ± 20 |
| 125 x 200 x 300 | ± 25 |
| 250 x 250 x 250 | ± 30 |
| 250 x 350 x 350 | ± 30 |
Custom built Solid Parallels and Blocks are also manufactured, please inquire mentioning size and accuracy.