When selecting a vacuum sintering furnace, consider the following key factors:
- Compatibility with Special Gases – Ensure the furnace can handle the process gases required for your sintering products. Some materials need specific gases, so this capability is essential.
- Vacuum Gauge Specifications – Some vacuum gauges are sensitive to contamination and may fail. If high vacuum is not critical, it’s practical to have an additional Pirani gauge for reliability.
- Vacuum Achievement Time – The time it takes to reach the target vacuum depends on the performance of mechanical and Roots pumps. A long vacuum-pumping time could indicate inefficiency and should be considered when purchasing.
- Binder Collection System – Many products contain binders like wax or glue. The collection system should have an easily accessible cleaning port and, if using materials that are solid at room temperature, the system must have heating capability to melt and collect them.
- After-Sales Service and Spare Parts Availability – Some manufacturers only sell the furnace as a one-time product without providing spare parts. Ensure the availability of consumables and replacement parts to avoid downtime due to minor component failures.
These points help ensure you select a furnace that is both efficient and reliable for long-term operation.