The customer's existing screw had worn through after years of abrasive service. Rather than wait months for an OEM replacement, we reverse-engineered it from the worn unit: each flight disc was profiled from 316 stainless, press-formed to the correct helix, and welded to a machined shaft with sequenced runs to keep the assembly true.
The finished screw was checked for run-out between centres, dressed, and delivered ready to drop in — with a drawing pack recorded so the next replacement is a phone call, not a project.
| Material | 316 stainless steel |
| Overall length | 4.2 m |
| Processes | Profiling · forming · TIG/MIG welding · machining |
| Checked | Run-out between centres |
| Lead time | 3 weeks from survey |
| Sector | Recycling & waste handling |