Voltage
110V
110V$383.76
240V CE$403.00
The Keystone ProVac Machine 240V CE is the 240-volt CE version of the Pro-Vac vacuum former supplied by Keystone Industries. Catalog code 7000342.
Keystone Pro-Vac Vacuum Former is a vacuum former from Keystone Industries, part of the Pro-Vac line.
This page carries 2 voltage options: 110V, 240V CE.
Find it on our Lab Equipment shelf, under Waxing, Thermoforming & Utility Equipment.
Orders placed before 3 PM ET ship the same day when the item is on our shelf (otherwise within 3 business days), and ground shipping is free over $10.
Product
- Manufacturer
- Keystone Industries
- Manufacturer #
- 7000340
- Item code
- 010-2187
Catalog path
- Marketplace
- Laboratory
- Category
- Lab Equipment
- Subcategory
- Waxing, Thermoforming & Utility Equipment
Ordering
- Status
- In stock
More from Waxing, Thermoforming & Utility Equipment
Stocked in the same subcategory.
Questions
What is Keystone Pro-Vac Vacuum Former used for?
The Keystone ProVac Machine 240V CE is the 240-volt CE version of the Pro-Vac vacuum former supplied by Keystone Industries.
Which voltage options are on this page?
This page carries 2 voltage options: 110V, 240V CE. Pick one to see its price, part number and stock.
When does it ship?
In-stock orders placed before 3 PM ET ship the same day; anything not on our shelf ships within 3 business days.Ground shipping is free over $10.
About vacuum formers and injectors
Vacuum thermomolding heats a plastic sheet until it softens and then adapts it to a cast by vacuum, air or mechanical pressure. A vacuum forming machine draws the heated sheet onto the model by suction; a pressure forming machine presses it on.
Waxing is the contouring of a wax pattern, or of the wax base of a trial denture, into the desired form. A wax pattern is a wax form that is the positive likeness of the object to be made.
The FDA lists dental wax for constructing the patterns from which metal crowns and bridges are cast as a Class I device (21 CFR 872.6890). Vacuum thermomolding heats a plastic sheet until it softens and then adapts it to a cast by vacuum, air or mechanical pressure.
How the heat sources and formers differ
- Vacuum Formers & Injectors — Forms a heated plastic sheet over a model; it does not work wax.
- Wax Pots Melters & Heaters — Melts wax with electric heat, without a flame.
- Wax Carving Pens & Tips — The heated tip that carries and shapes the wax, where a pot only melts it.
- Burners & Alcohol Lamps — An open flame at the bench, in place of electric heat.
- Torches & Torch Fuel — A hotter, directed flame for soldering metal, not for wax.
What to look at when choosing
Heat source: a flame or electric heat. In one study the electric source gave less linear shrinkage of the wax pattern.
Timing: the same study found that patterns went on shrinking between one hour and 24 hours and concluded that a wax pattern should be invested immediately.
Forming method: a pressure forming machine gives a steadier forming pressure and may suit materials that need more pressure or more precise shape.
Sources: The Glossary of Prosthodontic Terms, 9th edition (J Prosthet Dent 2017) · FDA 21 CFR 872.6890, Intraoral dental wax · Development status of mouthguard (Front Dent Med 2024) · Comparative Evaluation of Distortion in Wax Patterns Fabricated Using Conventional and Electrical Heat Sources (Cureus 2023)
