PHI Protection Tube “TKR Mitsui Kinzoku”


Protection Tube is a must spare part used for the protection of heater and thermocouple in highly corrosive molten aluminum. Prolific Heating International Co., Ltd strive to supply this part for foundry and aluminum industry customers.

Multiple Type of Silicon Nitride (Si3N4) Application

Various parts in the melting furnace require high quality spare parts, thus we thrive to support the customer with products such as thermocouple protection tube, heater protection tube, stalks and degassing rotor shafts are being used in the processes through melting furnaces to casting tables in the aluminium industry.

Silicon nitride fine ceramics is on of the best material to suit a variety of requirement, such as:

  • outstanding corrosion resistance to molten aluminium alloys and flux.
  • very good gas tightness.
  • excellent oxidation resistance up to 800oc and therefore long lifetime.
  • good thermal shock resistance.
  • the highest mechanical strength among ceramics.
  • very good wear resistance for rotating parts.
  • resistance against acids such as Hydrocoloric Acid (HCl) and Sulfurric Acid (H2SO4) which allows acid cleaning of the parts.

Sample of Application for Heater Protection Tube & Stalk

As the additional protection to your parts, we also support for the coating of these tubes and stalks with our trusted partner of DSB coating products. This coating product, not only will make your parts having a longer life time, but also helping you to save cost with reducing the aluminum material sticking to your furnace parts.

Meanwhile, with the fast paced changing of the aluminum industry technology, some customer would require different type of materials such as SiAlon, Alumina, Mullite, Zirconia, Silicon Nitride, Silicon Carbide, etc; this is where our solution came in to support you. So, don’t hesitate to reach us!

Prolific Group

A leader in industrial heaters and furnaces, serves Southeast Asia, including Thailand, Vietnam, Indonesia, Malaysia, and Singapore. Our expertise in design, manufacturing, and maintenance caters to diverse industries. We provide eco-friendly, energy-efficient heating solutions. Partner with us for unparalleled service and innovation. Contact us today to learn how Prolific Group can enhance your heating needs: "Our Heat is Your Improvement."

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