Dual-Layer Jewelry Flask Preheating Furnace | Removable Plate Casting Preparation
About This Jewelry Flask Preheating Furnace
This dual-layer jewellery flask preheating furnace helps casting studios preheat one taller flask or two smaller flasks in a single chamber, with a removable plate, digital temperature control, and an observation window for controlled pre-casting preparation.
The white insulated furnace body sits on a black base with a power switch, digital temperature controller, operation indicator, front door knob, and observation window. Both layers share the same temperature setting, so it is best for batches that can be processed under one heating program.
Single-Layer vs Dual-Layer Setup Guide
| Setup | Chamber Arrangement | Best Use | Important Limit |
|---|---|---|---|
| Single-layer mode | Separation plate removed; full 200 mm / 7.87 in chamber height available. | One taller flask or a larger custom casting preparation task. | Keep at least 25 mm / 1 in clearance from chamber walls. |
| Dual-layer mode | Separation plate installed; upper chamber 100 mm / 3.94 in and lower chamber 97 mm / 3.82 in. | Two smaller flasks in one heating cycle for repeat casting work. | Both layers share the same temperature setting; flasks must fit below each layer height. |
Best For / Not For
| Best For | Not For |
|---|---|
| Flask preheating before jewellery casting | Wax burnout from investment molds |
| Plaster investment mold preparation | Melting gold, silver, or other metals |
| Two smaller flasks processed under one temperature setting | Independent temperature programs for upper and lower layers |
| Small casting studios and jewellery training rooms | Large continuous industrial production lines |
| Workflows needing removable single or dual-layer capacity | Flasks that cannot maintain 25 mm / 1 in wall clearance |
Technical Specifications
| Maximum temperature | 1150°C / 2102°F |
| Full chamber size | 150 x 150 x 200 mm / 5.9 x 5.9 x 7.9 in |
| Upper chamber height (dual-layer) | 100 mm / 3.94 in |
| Lower chamber height (dual-layer) | 97 mm / 3.82 in |
| Heating time to maximum temperature | 60-90 minutes |
| Power | 1500W |
| Voltage options | 110V / 60Hz or 220V / 50Hz |
| Temperature control | Digital display controller |
| Construction | Steel with heat-resistant coating |
| Machine weight | 21 kg / 46.3 lb |
| External dimensions | 13.4 x 13.6 x 19.9 in |
Pro Tips
- Choose the voltage version that matches your local power supply before ordering or installation.
- Let the furnace cool completely before installing, removing, or repositioning the separation plate.
- Center each flask on its level and keep at least 25 mm / 1 in clearance from the chamber walls for heat circulation.
- Use dual-layer mode only when both flasks can follow the same temperature setting and heating schedule.
- Complete any required wax burnout process separately before using this furnace for flask preheating.
Frequently Asked Questions
Can this furnace burn out wax from investment molds?
No. It is designed for flask preheating and plaster investment mold preparation only. Wax burnout must be completed separately before use.
Can I use it as a metal melting furnace?
No. This product is not designed for melting gold, silver, or other metals.
What is the difference between single-layer and dual-layer mode?
Single-layer mode uses the full 200 mm chamber height with the plate removed. Dual-layer mode uses the installed plate to create an upper 100 mm level and a lower 97 mm level.
Can the upper and lower layers run at different temperatures?
No. Both layers share one heating system and one temperature setting.
How much clearance should I leave around the flask?
Maintain at least 25 mm / 1 in clearance between the flask and the chamber walls for proper heat circulation.
What accessories are included with the furnace?
The package includes the furnace, removable separation plate, heat-resistant gloves, crucible tongs, power cable, and user manual. Contents may be updated — check current product images if a specific accessory is essential.
What's Included
- 1 x Dual-layer jewellery flask preheating furnace with observation window
- 1 x Removable separation plate
- 1 x Heat-resistant gloves
- 1 x Crucible tongs
- 1 x Power cable, matched to the selected 110V or 220V version
- 1 x User manual
Support
Questions about setup, operation, compatibility, or order status? Contact the Musttool team at musttool01@gmail.com. We respond within 24 hours on business days.