Direct answer
A useful worn-sample replacement package contains the sample’s identity and orientation, full-part and close-up photographs, measurements from stable references, installation interfaces, load or support information, failure history, any drawing revision, and the buyer’s inspection requirements. Do not send only the damaged part and a product name. The package should show which features are original design intent, which are worn or distorted, and which dimensions still need confirmation.

Part A: preserve and label the sample
Before cleaning, cutting, straightening, or welding, photograph the complete sample. Mark top, bottom, drive or connection end, operator side, furnace direction, and line position. If the sample is broken, label the pieces. Record why it was removed and whether it had already been repaired.
Part B: measure and map damage
Measure overall geometry and functional interfaces from stable datums. Map cracks, worn surfaces, contact marks, deformation, and repair areas. Note which measurements are nominal, worn, distorted, or estimated. Add a simple sketch that links each measurement to a photograph number.
Part C: add the installation story
Explain how the part was loaded, supported, transferred, and connected. Include approximate load arrangement, furnace position, clearance problems, cycle history, and recent changes where known. This information helps the supplier decide whether a direct replacement is reasonable or whether the design needs review.

Part D: define the buyer’s approval points
List the critical dimensions, required inspection records, drawing revision, packaging needs, and open questions. ECOOSUN can review a worn sample, drawing, operating information, engineering requirements, and inspection requirements through Heat Treatment Baskets or contact-us.

FAQ
What should a buyer confirm for a heat-resistant cast furnace part requirement?
Confirm the drawing or used sample, key dimensions and interfaces, furnace type and clearance, load, operating cycle, failure evidence and inspection requirements. Final acceptance criteria should be agreed for the specific project.
Can ECOOSUN review a custom heat-resistant cast furnace part requirement?
Yes. ECOOSUN can review a customer drawing or used sample and discuss casting, laboratory and inspection requirements for a custom furnace-component project. Suitability and final scope are confirmed from the supplied information.
Manufacturing and Product Evidence

For a project review, send your drawing, sample photos, furnace conditions, quantity and inspection requirements through our Contact Us page.
Worn-sample replacement package checklist
| Package item | What to include | Why it matters |
|---|---|---|
| Identification | Part name, equipment position, quantity and sample label | Prevents samples and drawings from being mixed |
| Photos and dimensions | All sides, scale reference, critical interfaces and worn areas | Separates installation geometry from service damage |
| Operating history | Temperature, atmosphere, load, cycle and failure description | Supports material and design review |
| Approval points | Dimensions, material, inspection documents and drawing approval | Defines what must be confirmed before manufacture |
Send the available package through Contact Us; missing items can then be identified for the specific project.