ceramic tube


The ceramic parts are manufactured using a water stabilised plasma torch. In the plasma jet ceramic powder is melted, accelerated and projected onto a metal tool where the molten grains flatten and solidify, building a layered structure. The result: Our world-wide unique plasma ceramic with its brand name plascera®.

WPT enables

  • The production of ceramic bodies of almost any dimensions (internal diameter from 10 mm to 1500 mm, max. length 7000 mm)
  • Wall thicknesses from 1 mm to 50 mm
  • Thin wall thicknesses even for large diameters and lengths
  • Dimensional accuracy
  • Reinforcement with fibrous materials or steel
  • Short lead times (1 – 3 weeks)


  • Alumina
  • Mullite
  • Spinell
  • Zirconia toughened alumina
  • Zirconia
  • Zirconium silicate

Technical features

  • Usable up to approx. 1700°C
  • Outstanding temperature stability
  • High thermal shock resistance
  • Resistant to acids, lyes, solvents and other chemicals
  • Resistant to oxidizing, inert or reducing atmosphere and vacuum
  • Resistant to various molten metals (including zinc, tin, aluminium, bronze, copper)
  • Low thermal conductivity
  • Electrically insulating
  • Produced in one single operation enabling short lead times
  • Mechanical processing including turning, milling, drilling, grinding, lasering, water jet cutting


  • Industrial furnace engineering: pipes, rotary tubes, insulating tubes, burner tubes, racks
  • Steel industry: furnace rollers, bearing blocks
  • Petrochemistry: ferrules
  • Glass industry: furnace rollers
  • Semiconductor industry: liner tubes
  • Chemistry: ceramic reactors, combustion chambers
  • Mechanical engineering: sheath tubes
  • HT processes: rack for vacuum soldering
  • Waste incineration: rotary tubes
  • Waste separation: insulating tubes
  • Crystal growth: protective tubes, insulating tubes
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