Vacuum solutions engineered for vacuum furnace & heat treatment
The industry where the furnace itself is lined with combustible dust — vacuum-furnace hot zones are built from graphite insulation, heating elements and fixtures, so maintenance and cleanout liberate graphite dust that is both combustible and electrically conductive, often inside a confined hot zone. Metal condensate, braze residues and sintering powders round out a recovery picture that demands rated, bonded equipment.
Graphite & Confined-Space Aware
Hot-zone cleanout
Furnace Hot Zones
Graphite-lined
HEPA Filtration
Conductive fines retained
Conductive Graphite Dust
Bond & ground
Explosion-Proof
Manufacturing specialists
1000+
Vacuums sold worldwide
USA
Designed & manufactured
Direct
Buy from the manufacturer
NFPA 660
ATEX / IECEx principles
Vacuum Furnace & Heat Treatment production process explorer
Every stage. Every challenge. The right vacuum solution.
Vacuum heat-treating and its cousins — brazing and sintering — generate dust from the furnace lining itself and from the materials processed. Walk the stages where recovery belongs.
Stage 01 — Hot-zone maintenance
Graphite insulation and felt in the hot zone degrade and shed conductive, combustible graphite dust — the signature dust of vacuum-furnace work, captured with rated, bonded recovery.
Key challenges
A furnace built from combustible dust
Conductive Graphite Dust
Hot-zone graphite insulation and elements shed dust that is both combustible and electrically conductive — rated, bonded, conductive-aware recovery is required.
Confined Hot-Zone Cleanout
Furnace cleanout happens inside confined hot zones coated in graphite soot and condensate, under confined-space discipline with static-safe equipment.
Metal Condensate
Vacuum processing deposits metal condensate that can be reactive depending on the alloys processed — recovered sealed and carefully.
Braze & Sintering Powders
Brazing and sintering (powder metallurgy) handle fine metal and braze powders that carry combustible-metal rules.
Combustible + Conductive
Graphite dust is combustible and electrically conductive at once, so recovery must be both rated and static-safe — neither property can be ignored.
Fine Soot & Fines
Hot-zone soot and fines are fine and clinging, so HEPA-retained recovery is essential to keep them contained.
Dust & materials knowledge center
What furnace work generates
Combustibility and severity are material- and particle-size-specific — testing and your Dust Hazard Analysis govern. Full directory: the full materials directory.
Applications in heat treatment
- CNC machining
- CNC milling
- CNC turning
- CNC grinding
- Metal cutting
- Laser cutting
- Plasma cutting
- Waterjet cutting
- Deburring
- View all
Built for performance. Built for compliance.
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Explosion Proof Vacuums
Grounded, bonded recovery for combustible dust
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HEPA Vacuums
99.99% filtration for fine and hazardous dust
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Industrial Vacuums
Continuous-duty recovery for demanding plants
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Central Vacuum Systems
Facility-wide housekeeping from fixed drops
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Representative case study
Recovering Titanium Powder in a Metal Additive
How a representative aerospace-focused AM producer made powder handling safe and economical at once — air-operated explosion-proof vacuums with immersion separation for one of the most reactive dusts in manufacturing.
Read the full case studyTalk to the manufacturer
Get the right explosion proof vacuum for your application.
Tell us what you need to vacuum and where. Our technical team will recommend the PrestiVac model best suited to your material, your classification and how hard you will work it — and because we build every unit ourselves, we can modify it to fit.
- Legally certified explosion proof
- Solid stainless steel construction
- Industry-best 3-year warranty
- Designed & manufactured in the USA
- 200+ vacuum versions