Chain shaft
The chain shaft handles assembly connections on a cross-beam grate and is a replaceable spare part. We supply this type of replacement part, which the partner factory produces before dispatch.
Where it sits in the cross-beam assembly
A cross-beam grate is assembled with cross beams as the load-bearing structure: grate bars mount on the beams and can be replaced one by one, and the beams are joined by heavy-duty pins. The chain shaft is a part of the same assembly stage, and when replacing it the profile and mating dimensions must be checked against the original drawings. High-wear zones have separate wear plates, which can be inspected at the same time as the chain shaft.
Materials and temperature zones
| Application | Material |
|---|---|
| Cross beams and grate bars | Cr25Ni20 (310S) cast alloy steel |
| Medium-temperature zones | Cr26Ni12 |
| Structural support parts | Standard carbon steel |
Materials can be customised to customer requirements, with grades ranging from HT200, HT250, RTSi5, RQTSi5, RTCr16, RTCr, RTCr2 and RTCr5 to RTCr2Si4Mo. Each location takes a material chosen for its temperature and load conditions.
Machining and delivery
Every part goes through precision casting and machining to ensure correct fit and alignment, and the product meets technical standard NB/T 47050-2016. We can provide selection and spare-part matching, and we handle the logistics from the partner factory through to the site.