Description
The flask preheating furnace for casting studios that need to process two flasks per cycle without buying a second unit — a removable separation plate converts the 150 × 150 × 200 mm chamber between single-layer and dual-layer mode in seconds, reaching 1150°C in 60–90 minutes with digital temperature control and an observation window for real-time monitoring.
- Process 2 Flasks in One Cycle — Dual-layer mode with removable separation plate for higher batch output from a single flask preheating furnace.
- Removable Separation Plate — Switch between single-layer (200mm full height) or dual-layer use without tools.
- 1150°C Maximum Temperature — Reaches full temperature in 60–90 minutes for jewelry casting flask preheating.
- Digital Temperature Control — Digital display controller for setting and monitoring chamber temperature throughout the heating cycle.
- Observation Window — Monitor flask condition in real time without opening the door.
The Tooltos Dual Layer Jewelry Flask Preheating Furnace is built for flask preheating and plaster investment mold preparation in jewelry casting workflows. The removable separation plate gives you two operating modes: install the plate to process two smaller flasks per cycle in dual-layer mode, or remove it to use the full 200mm chamber height for taller flasks in single-layer mode. With digital temperature control and a built-in observation window, it lets you monitor the heating process without opening the door — maintaining stable chamber temperature throughout the cycle. Suitable for small jewelry casting studios, goldsmith workshops, jewelry schools and batch production users who need flexible flask preheating capacity from a single furnace.
Why Choose the Dual Layer Model?
Single-layer mode: Remove the plate and use the full 200mm chamber height for taller flasks.
Dual-layer mode: Install the separation plate and preheat two smaller flasks in one cycle.
For small jewelry studios, schools and repeat casting work, this means more output without buying a second furnace.
What This Furnace Is Best For
| Suitable For | Not Suitable For |
|---|---|
| Flask preheating before casting Plaster investment mold preparation Batch production with two smaller flasks per cycle Flexible single or dual-layer studio workflows Jewelry schools and training centers |
Wax burnout from investment molds Metal melting Independent temperature programs per layer Large industrial continuous production |
Key Features
- Removable Separation Plate — Switch between single-layer and dual-layer mode without tools. Install or remove when the furnace is fully cooled.
- Dual-Layer Chamber — Upper chamber: 100mm / 3.94in. Lower chamber: 97mm / 3.82in. Process two flasks per cycle.
- 1150°C Maximum Temperature — Reaches full temperature in 60–90 minutes with heat distribution across both layers.
- Digital Temperature Control — Digital display controller for setting and monitoring chamber temperature. Both layers share the same temperature setting.
- Observation Window — Monitor flask condition in real time without opening the chamber door.
- Universal Voltage — Available in 110V/60Hz and 220V/50Hz for worldwide use.
Technical Specifications
| Maximum Temperature | 1150°C (2102°F) |
| Full Chamber Size | 150 × 150 × 200 mm (5.9 × 5.9 × 7.9 in) |
| Upper Chamber — Dual-Layer Mode | 100 mm / 3.94 in |
| Lower Chamber — Dual-Layer Mode | 97 mm / 3.82 in |
| Heating Time | 60–90 minutes to maximum temperature |
| Power | 1500W |
| Voltage | 110V / 60Hz or 220V / 50Hz |
| Temperature Control | Digital display controller |
| Construction | Steel with heat-resistant coating |
| Machine Weight | 21 kg / 46.3 lbs |
| External Dimensions | 13.4 × 13.6 × 19.9 inches |
Single-Layer Mode vs. Dual-Layer Mode
| Feature | Single-Layer Mode | Dual-Layer Mode |
|---|---|---|
| Separation Plate | Removed | Installed |
| Chamber Height | 200 mm / 7.87 in (full height) | Upper 100 mm + Lower 97 mm |
| Flasks per Cycle | 1 (larger or taller flasks) | 2 (one per layer) |
| Best For | Tall flasks, larger custom pieces | Batch production, repeat casting runs |
Which Flask Preheating Furnace Is Right for Your Workflow?
| Feature | Dual Layer Model (This) | Standard Single Layer Model |
|---|---|---|
| Chamber Configuration | Single or dual layer | Single layer only |
| Separation Plate | Removable (included) | Not included |
| Flasks per Cycle | 1 or 2 | 1 |
| Best For | Batch casting, flexible workflow | Single flask, simpler setup |
| Max Temperature | 1150°C | 1150°C |
| Observation Window | Yes | Yes |
See It in Action
Frequently Asked Questions
Can this furnace burn out wax from investment molds?
No. This furnace is designed for flask preheating and plaster investment mold preparation only. A separate wax burnout process must be completed before using this furnace.
Can I remove the separation plate and use the full chamber height?
Yes. Remove the plate to use the full 200mm chamber height in single-layer mode. Always install or remove when the furnace is fully cooled.
Can both layers run different temperatures at the same time?
No. Both layers share the same heating system and operate at the same temperature setting.
What is the chamber size in dual-layer mode?
Upper chamber: 100mm (3.94in). Lower chamber: 97mm (3.82in). Full chamber width and depth remain 150 × 150mm.
Does dual-layer mode affect heating time?
No. The furnace reaches 1150°C in 60–90 minutes regardless of configuration.
Is this a metal melting furnace?
No. This is a flask preheating furnace for investment mold preparation in jewelry casting. It is not designed for metal melting.
Is the separation plate easy to install and remove?
Yes. It slides into position without tools. Always install or remove when the furnace is fully cooled.
Which voltage should I select?
110V for USA and Canada. 220V for Europe, UK, Australia and most of Asia.
Operating Notes
- Allow complete cooling before installing or removing the separation plate.
- Center flasks on each level for optimal heat distribution.
- Maintain at least 1 inch (25mm) clearance between flasks and chamber walls.
- Minor door gaps are normal and allow for heat expansion and ventilation.
- Minor interior cracks are normal due to high-temperature insulation material characteristics and do not affect performance or safety.
What's Included
- 1 × Dual Layer Jewelry Flask Preheating Furnace with Observation Window
- 1 × Removable Separation Plate
- 1 × Heat-Resistant Gloves
- 1 × Crucible Tongs
- 1 × Power Cable (110V or 220V)
- 1 × User Manual
Support
For technical questions or assistance, contact the Tooltos support team at sales@tooltos.com or via live chat at www.tooltos.com. Responses are typically provided within 2 hours.
















