Jewelry Flask Preheating Furnace 1150°C with Observation Window
- 47 in stock
Description
The flask preheating furnace for jewelry casting studios that need to monitor without interrupting — a transparent observation window lets you check the heating process in real time without opening the door, digital temperature control holds the chamber steady up to 1150°C, and the 150 × 150 × 200 mm chamber fits casting flasks up to 4" × 7".
- 1150°C Maximum Temperature — Designed for jewelry flask preheating and plaster investment mold preparation in jewelry casting workflows.
- Observation Window Design — Monitor the heating process without opening the door, reducing heat loss and keeping chamber temperature stable.
- Digital Temperature Control — Digital display controller for setting and monitoring chamber temperature throughout the heating cycle.
- Fits Up to 4" × 7" Flasks — 150 × 150 × 200 mm chamber suitable for small jewelry studios and casting workshops.
- 110V / 220V Options — Choose the correct voltage for your studio, school or workshop setup.
The Tooltos 1150°C Jewelry Flask Preheating Furnace is built for flask preheating and plaster investment mold preparation in jewelry casting workflows. With a digital temperature controller and built-in observation window, it lets you monitor the heating process without opening the door — maintaining stable chamber temperature and reducing heat loss throughout the cycle. The 150 × 150 × 200 mm chamber accommodates casting flasks up to 4" × 7", making it a practical choice for small jewelry studios, goldsmith workshops and jewelry schools that process one flask at a time.
Why the Observation Window Matters
Most flask preheating furnaces require you to open the door to check progress — releasing heat and disrupting the cycle. The observation window on this model lets you:
- Check flask heating progress in real time
- Avoid unnecessary heat loss from opening the door
- Keep chamber temperature stable throughout the heating cycle
- Reduce risk of thermal shock to the investment mold
What This Furnace Is Best For
| Suitable For | Not Suitable For |
|---|---|
| Flask preheating before casting Plaster investment mold preparation Maintaining flask temperature before metal pour Small jewelry studios and casting workshops Jewelry schools and training centers |
Wax burnout from investment molds Metal melting Large industrial flask production Continuous high-volume casting |
Key Features
- Transparent Observation Window — Monitor flask heating in real time without opening the door, maintaining stable chamber temperature throughout the cycle.
- Digital Temperature Control — Digital display controller for setting and monitoring chamber temperature. Suitable for standard flask preheating schedules.
- 1150°C Maximum Temperature — Reaches full temperature in 60–90 minutes. Higher maximum than standard 800°C models, providing greater flexibility for different casting schedules.
- Professional Steel Construction — Durable steel chassis with heat-resistant coating built for daily workshop use.
- Spring Door Handle — Safe, controlled door operation during high-temperature use.
- Universal Voltage — Available in 110V and 220V for worldwide use.
Technical Specifications
| Voltage | 110V / 60Hz or 220V / 50Hz |
| Power | 1500W |
| Maximum Temperature | 1150°C (reached in 60–90 minutes) |
| Temperature Control | Digital display controller |
| Observation Window | Yes — transparent, real-time monitoring |
| Maximum Flask Size | 4" × 7" |
| Chamber Inner Size | 150 × 150 × 200 mm (5.9 × 5.9 × 7.9 inches) |
| Machine Dimensions | 13.6 × 13.4 × 19.9 inches |
| Machine Weight | 21 kg / 46.3 lbs |
| Housing Material | Steel with heat-resistant coating |
Standard Model vs. Dual Layer Model
| Feature | This Model (Standard) | Dual Layer Model |
|---|---|---|
| Chamber | Single layer, full 200mm height | Single or dual layer (removable plate) |
| Flasks per Cycle | 1 flask (up to 4" × 7") | 1 or 2 flasks per cycle |
| Best For | Individual studios, single flask workflow | Batch production, schools, repeat casting |
| Observation Window | Yes | Yes |
| Max Temperature | 1150°C | 1150°C |
Workshop Applications
Small Jewelry Studios: Preheat one casting flask at a time with digital temperature control. The observation window lets you monitor the process without interrupting the cycle or losing chamber heat.
Jewelry Schools and Training Centers: Teach jewelry casting fundamentals with professional-grade equipment. Students can observe the flask heating process through the window in real time.
Hobbyist and Independent Jewelers: A reliable entry point into professional flask preheating furnace equipment, with the temperature range used in commercial casting studios.
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.
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.
How long does it take to reach maximum temperature?
Approximately 60–90 minutes to reach 1150°C.
Why does the chamber show cracks or peeling?
This is normal due to high-temperature insulation material characteristics. It does not affect performance or safety.
Can I monitor the process without opening the door?
Yes. The transparent observation window allows real-time monitoring without opening the door, maintaining stable chamber temperature throughout the cycle.
What is the maximum flask size?
The chamber accommodates casting flasks up to 4" × 7".
What voltage options are available?
Available in 110V and 220V. Select the correct voltage for your region at the time of purchase.
Should I choose this model or the dual layer model?
If you mainly process one flask at a time, this standard model is the most cost-effective choice. For batch production or two smaller flasks per cycle, choose the dual layer model.
Professional Tips
- Monitor through the observation window to track flask heating progress without interrupting the cycle.
- Allow the furnace to cool completely before cleaning the interior.
- Check the door seal periodically for optimal heat retention.
- Minor interior cracks are normal due to high-temperature insulation material characteristics and do not affect performance or safety.
What's Included
- 1 × Jewelry Flask Preheating Furnace with Observation Window
- 1 × Crucible Tongs (Steel Bell Pliers)
- 1 × Heat-Resistant Gloves
- 1 × Power Cable
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.
