This is the most conventional form of grates used in boiler. Generally used in small boilers , and wherein wood is used as fuel. They are available in two or four part, which are make a complete round.Different sizes along with different chemical compositions are available.
| DIMENSION IN MM | |
| SR NO | A |
| J1 | 740 |
| J2 | 1100 |
| J3 | 800 |
| J4 | 680 |
| J5 | 720 |
| J6 | 900 |
| J7 | 1000 |
| DIMENSION IN MM | |
| SR NO | A |
| J8 | 490 |
| J9 | 530 |