Tooltos 3.5in Perforated Casting Flask | Flanged Vacuum 4-10 Inch
- 93 in stock
Description
- 3.5 Inch (89mm) Diameter — Mid-range capacity for large pendants, multi-ring batch production and bracelet component casting
- 7 Height Options (4-10 Inch) — The widest height range in the Tooltos flask lineup; match the flask height precisely to your wax tree size
- 304 Stainless Steel Construction — High-temperature resistant, 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 casts
- Flanged Top Design — Creates an airtight seal with the vacuum casting machine plate for maximum vacuum efficiency
- Rubber Base Included — Seals the bottom of the flask during investment pouring; no separate purchase needed
The Tooltos 3.5 Inch Perforated Stainless Steel Casting Flask bridges the gap between compact small-piece flasks and industrial large-diameter flasks. The 89mm diameter accommodates multi-piece wax trees for batch production of rings, large pendants, bracelet links and small sculptures. Seven height options from 4 to 10 inches give production studios and professional jewelers precise control over flask volume and investment usage per casting session.
Size Selection Guide
| Height | Best For | Typical Projects |
|---|---|---|
| 4 inch | Medium pendants, 2-3 rings | Standard jewelry pieces, short wax trees |
| 5-6 inch | Large pendants, 3-4 rings | Statement pieces, small batch production |
| 7-8 inch | Multiple pieces, bracelet links | Production runs, complex wax trees |
| 9-10 inch | Large sculptures, maximum capacity | Art pieces, large batch production runs |
Best For / Not For
| Best For | Not Ideal For |
|---|---|
| Multi-ring batch production (3-5 rings per cast) Large pendant and medallion casting Bracelet link and component casting Small sculpture and art piece casting Professional production studios Gold, silver, platinum, brass and bronze casting |
Single small pieces where minimal investment waste matters (use 1.2 or 1.5 inch flask) Very large sculptures requiring 8.6 inch diameter Centrifugal casting (designed for vacuum casting) Gravity casting without vacuum equipment |
Technical Specifications
| Flask material | 304 stainless steel |
| Base material | Rubber (included) |
| Flask diameter | 89 mm (3.5 in) |
| Available heights | 4, 5, 6, 7, 8, 9, 10 inch (7 options) |
| Wall design | Perforated for vacuum flow |
| Top design | Flanged for airtight vacuum seal |
| Compatible metals | Gold, silver, platinum, brass, bronze and standard jewelry alloys |
| Compatible machines | Standard vacuum casting machines with 3.5 in port (2L-6L capacity) |
Pro Tips
- For batch production, arrange multiple wax models in a tree pattern to maximize flask capacity and metal flow efficiency
- Pre-heat the flask slightly before pouring investment to reduce thermal shock and extend flask service life
- Clean perforations with a small brush or compressed air after each use to maintain optimal vacuum flow
- Check the flange surface for investment residue before each use — a clean flange ensures a proper airtight seal with the vacuum plate
- Store with the rubber base attached to prevent dust from accumulating in the perforations between casting sessions
Frequently Asked Questions
Q: What size projects is the 3.5 inch flask best for?
A: Ideal for large pendants, multi-ring batch production (3-5 rings), bracelet components and small sculptures. The 89mm diameter accommodates pieces up to approximately 75mm in width.
Q: How do I choose the right height?
A: Choose 4-6 inch for standard jewelry and small batches, 7-8 inch for production runs and complex wax trees, and 9-10 inch for large pieces or maximum batch capacity.
Q: Is this compatible with my vacuum casting machine?
A: This flask is designed for standard vacuum casting machines with a 3.5 inch port. Confirm your machine's maximum flask size before ordering.
Q: What metals can I cast with this flask?
A: Gold, silver, platinum, brass, bronze and standard jewelry casting alloys. The 304 stainless steel construction handles the temperatures required for all common jewelry metals.
Q: How do I clean the perforations?
A: Use a small brush or compressed air after each use. The stainless steel will not corrode or degrade with regular cleaning.
Q: Is the rubber base reusable?
A: Yes. The rubber base is reusable across multiple casting sessions. Inspect it before each use for cracks or deformation that could affect the seal.
What's Included
- 1x Perforated stainless steel casting flask (3.5 in diameter, selected height)
- 1x Rubber base
Support
Questions about flask sizing, machine compatibility or order status? Contact the Tooltos team at sales@tooltos.com. We respond within 24 hours on business days.
