Tooltos 8.6in Perforated Casting Flask | Flanged Vacuum 10-20 Inch
- 98 in stock
Description
Key Selling Points
- 8.6 Inch (218mm) Diameter — Industrial-scale flask for large jewelry, sculpture, batch production and art foundry work that smaller flasks cannot accommodate
- 304 Stainless Steel Construction — High-temperature resistant up to 1150°C, corrosion-proof and built for repeated kiln burnout and casting cycles
- Perforated Wall Design — Strategically placed perforations allow vacuum to draw air pockets out of the investment for bubble-free large-scale casts
- Flanged Top Design — Creates an airtight seal with the vacuum casting machine plate for maximum vacuum efficiency on large pours
- Heavy-Duty Rubber Base Included — Seals the bottom of the flask during investment pouring; sized for the 8.6 inch diameter
- Two Height Options — 10 inch for large flat pieces and multi-piece batches; 20 inch for tall sculptures and maximum wax tree capacity
About This Casting Flask
The Tooltos 8.6 Inch Perforated Stainless Steel Casting Flask is designed for professional jewelers, sculpture artists, production studios and art foundries that need industrial-scale vacuum casting capacity. The 218mm diameter accommodates large wax trees and multi-piece batch setups that standard 1.5-4 inch flasks cannot handle. The perforated wall and flanged top work together to ensure complete vacuum coverage across the full flask volume, eliminating the air pockets that cause surface defects in large castings. Available in 10 inch and 20 inch heights.
Size Selection Guide
| Size | Diameter | Height | Best For |
|---|---|---|---|
| 8.6 x 10 inch | 218 mm (8.6 in) | 254 mm (10 in) | Large flat pieces, multi-piece batch production, oversized pendants |
| 8.6 x 20 inch | 218 mm (8.6 in) | 508 mm (20 in) | Tall sculptures, figurines, maximum wax tree capacity |
Best For / Not For
| Best For | Not Ideal For |
|---|---|
| Large jewelry: statement necklaces, oversized pendants, chunky bracelets Sculpture and art foundry casting Multi-piece batch production runs Gold, silver, brass and bronze casting up to 1150°C Professional studios and production workshops |
Small jewelry pieces (use 1.5-4 inch flask instead) Kilns smaller than 9 inch interior diameter Centrifugal casting (designed for vacuum casting) Gravity casting without vacuum equipment |
Technical Specifications
| Flask material | 304 stainless steel |
| Base material | Heavy-duty rubber (included) |
| Flask diameter | 218 mm (8.6 in) |
| Available heights | 10 in (254mm), 20 in (508mm) |
| Temperature resistance | Up to 1150°C |
| Wall design | Perforated for vacuum flow |
| Top design | Flanged for airtight vacuum seal |
| Flask weight (empty) | 3-5 kg depending on height |
| Investment required | Approx. 5-10 kg depending on height |
| Minimum kiln size | 9 inch interior diameter |
Pro Tips
- Plan your sprue system carefully for large castings — a well-designed sprue tree ensures metal reaches all parts of the mold before solidifying
- Allow 5-10 minutes of vacuum time during investment pouring for best air removal results on large flask volumes
- Mix investment in batches if needed — the 8.6 inch flask requires significantly more investment than standard small flasks
- Use proper lifting technique when the flask is filled with investment — the combined weight of flask, investment and rubber base can exceed 15kg for the 20 inch size
- Clean perforations with a brush or compressed air after each use to maintain optimal vacuum flow
Frequently Asked Questions
Q: What kiln size do I need for this flask?
A: A minimum 9 inch interior diameter kiln is required to accommodate the 8.6 inch flask diameter. Confirm your kiln's interior dimensions before ordering.
Q: How much investment plaster is needed?
A: Approximately 5-10 kg depending on the height selected. Prepare investment in batches if your mixing equipment has a smaller capacity.
Q: Is this suitable for gold and silver casting?
A: Yes. The 304 stainless steel construction handles temperatures up to 1150°C, covering all common precious and non-ferrous jewelry metals.
Q: What is the difference between the 10 inch and 20 inch height?
A: The 10 inch is suited for large flat pieces and multi-piece batch production. The 20 inch provides maximum capacity for tall sculptures, figurines and large wax trees.
Q: Is this compatible with standard vacuum casting machines?
A: This flask requires a vacuum casting machine with an 8.6 inch or larger platform. Confirm your machine's maximum flask size before ordering.
Q: Can I use this flask for centrifugal casting?
A: This flask is designed for vacuum casting. For centrifugal casting, a different flask style is typically required.
What's Included
- 1x Perforated stainless steel casting flask (8.6 in diameter, selected height)
- 1x Heavy-duty rubber base
Support
Questions about flask sizing, kiln compatibility or order status? Contact the Tooltos team at sales@tooltos.com. We respond within 24 hours on business days.
