When two quotations for the same kiln or furnace differ widely, it is rarely just margin. Relining cost depends on a handful of factors, and knowing them helps you compare quotes on equal terms and avoid surprises during the shutdown.
1. Material grade and quantity
The grade of brick or castable, the lining thickness and the area to be lined set the material cost. Higher alumina grades and low cement castables cost more per tonne but often last longer in harsh zones. Make sure every quote is based on the same grades and quantities.
2. Demolition and preparation
Removing the old lining, clearing debris and preparing the shell can take a large share of site time, especially for castables bonded to anchors. Check whether demolition and debris disposal are included.
3. Anchors and steel work
Castable linings need anchors in the right material and spacing. Replacing corroded anchors and repairing the shell adds cost, but skipping it often shortens lining life.
4. Access and working conditions
Scaffolding, confined-space work, height, heat from neighbouring equipment and lifting arrangements all affect manpower and time.
5. Shutdown window
A tight schedule needs more crew working in shifts, and sometimes faster-setting materials. A realistic window usually costs less than a rushed one.
6. Dry-out and commissioning
Controlled heat-up, temperature monitoring and supervision are part of a proper job. A quote without dry-out may look cheaper but carries more risk.
How to compare quotations
- Same material grades, thickness and quantities
- Clear scope: demolition, anchors, scaffolding, dry-out
- Crew size and number of shifts
- Schedule against your shutdown dates
- Test certificates and documentation included
We quote line by line, so you can see exactly what is included. Send your drawing or BOQ for a quick quotation.
Send us the details and get a quick quotation or a site visit.