Small flake splint pin shaft
The small flake splint pin shaft is the hinge part that connects the splint to the chain, and together with the splint and the retainer clip it holds the flake grate bars on the chain.
Connection and fixing method
The splint pin shaft passes through the pin holes of the splint and the chain link, with retainer clips limiting it at both ends, so the grate bars run in step with the chain. At high temperature the pin takes shear load and wear; when the shaft diameter has worn thin or the pin has bent, replace it as a set. Pins on the same chain are best replaced in batches so that every hinge point carries a consistent load.
Material and service life
Pins are usually made of Cr25Ni20, and Inconel is available for high-temperature positions; the typical service life in our spare parts list is 8-15 months. Splints and retainer clips are fixed hardware items, so check them for deformation and wear at the same time as the pins are replaced.
| Part | Material | Typical service life |
|---|---|---|
| Splint pin shaft | Cr25Ni20 / Inconel | 8-15 months |
| Chain link | Cr25Ni20 | 12-18 months |
Supply and matching parts
We supply small flake splint pin shafts together with matching splints, retainer clips and chain links. Goods are dispatched from our partner factory and can be machined to the dimensions and tolerances of the original machine. Send us a used part or a drawing and we will check the specification; the material can also be customised to customer requirements.