Vermiculite pressed parts
Vermiculite Pressed Parts: Safe & Efficient
Vermiculite pressed parts are refractory components designed for continuous temperatures up to 600 °C and short-term peaks of 1100 °C. Produced using a pressing process, they are especially suitable for large series. This makes them a cost-effective, safe, and durable solution for industries such as furnace construction, boilers, automotive, and mechanical engineering.
- PRODUCT VARIATIONS
- According to customer specifications
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Cost-oriented
Technically excellent and cost-oriented solution.
Nontoxic
Light, non-toxic, fiber-free, odorless and acid-resistant.
Refractory
Depending on the product variation, application temperatures up to 1100 ° C.
TECHNICAL DETAILS
PROPERTIES
Application Temperature 1100°C Melting point > 1300°C Panel thickness tolerance +/- 1mm Tolerance length/width +/- 2,5mm linear post-shrinkage Aprox. 1% Thermal expansion coefficient 11,0 x 10⁶ K¹ Loss on ignition 1025°C: 7% HS fare Nr. 6809.90.00 Colour Sand CHEMICAL AVERAGE ANALYSIS
SiO2 46,0% TiO2 0,7% Fe2O3 5,5% Al2O3 7,0% MgO 19,0% CaO 3,5% Na2O 0,2% K2O 10,0% Vermilite 375 Vermilite 475 Vermilite 600 Vermilite 700 Density 375 kg/m3 475 kg/m3 600 kg/m3 700 kg/m3 Cold compressive strength 1,3 N/mm2 2,5 N/mm2 4,2 N/mm2 4,5 N/mm2 Flexural strength 0,3 N/mm2 0,8 N/mm2 1,6 N/mm2 2,0 N/mm2 Overall porosity 85% 81% 76% 74% THERMAL CONDUCTIVITY
Temp. (W/m°K) (W/m°K) (W/m°K) (W/m°K) 200°C 0,12 0,14 0,16 0,19 400°C 0,15 0,17 0,18 0,20 600°C 0,16 0,19 0,20 0,21 800°C 0,19 0,20 0,22 0,22 Typical Applications
Industrial furnaces & boilers → flange seals, insulation plates
Automotive → exhaust and heat protection components
Stove & fireplace construction → fireproof plates and seals
Mechanical engineering → precision pressed parts in large quantities
Benefits
- Heat resistant: up to 600 °C continuous, 1100 °C short-term
- Safe: fiber-free, non-toxic, formaldehyde-free
- Durable: moisture- and acid-resistant
- Customizable: produced to customer specifications, optional with press-fit nuts
- Economical: ideal for high-volume production
FAQ – Frequently Asked Questions about Vermiculite Pressed Parts
What temperatures can Vermiculite pressed parts withstand?
Continuously approx. 600 °C, short-term up to 1100 °C.
Can custom shapes be manufactured?
Yes, pressed parts are produced according to customer specifications – optionally with press-fit nuts.
What is the advantage compared to ceramic fibers?
Vermiculite pressed parts are fiber-free, non-toxic and safe for health – with the same heat resistance.
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Downloads
Data sheet Vermilite2000 Isolation products
Product properties, typical applications and availabilities.
Datasheet Vermilite2000 Isolation board RD375
Product properties, typical applications and availabilities.
Datasheet Vermilite2000 Isolation board RD475
Product properties, typical applications and availabilities.
Datasheet Vermilite2000 Isolation board RD600
Product properties, typical applications and availabilities.
Datasheet Vermilite2000 Isolation board RD700
Product properties, typical applications and availabilities.
Hoffmann product catalog
Refractory | Seals | Foundry supplies | Conveyor chains | Chesterton
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K. Hoffmann GmbH
For over 40 years, we have been manufacturing high-temperature-resistant boards, pressed, and milled molded parts from Vermiculite.
Due to its special properties, vermiculite is particularly suitable as a lightweight insulation material and is characterized by its temperature resistance up to 1100 °C.
If you are also looking for a sustainable insulation material without health concerns, then contact us.
