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AHK – Series

AHK – Series

The Linn High Temp AHK Series is a robust metal treatment furnace (kiln) designed for use under air or neutral gas atmospheres. As a hybrid of the proven HK and AK furnace models, it combines their strengths to deliver enhanced performance and versatility. The AHK Series features high-efficiency ceramic light stone insulation with an energy-saving microporous board backing for optimal thermal retention.

It utilizes high-quality spiral wire heaters made from an aluminium-chromium-iron (AlCrFe) alloy for reliable heat generation. Temperature measurement is achieved through a Type K (NiCr/Ni) thermocouple, with a Type S (PtRh/Pt) option available for the 1300°C version. The furnace is capable of reaching temperatures up to 1300°C, making it ideal for demanding heat treatment applications.

Standard Options:

  • Control: Different temperature controller, data recording, trailing thermocouple
  • Gas/Safety: Protective gas purge with inert gases and sheet housing around insulation
  • Lifting door
  • Exhaust treatment: Exhaust unit

Main application:

  • Tempering, annealing of metal parts.
  • Hardening of tools, machine parts, machine cutting tools.
  • Normalizing powder carburization of low alloyed steel.
Type Volume (L) T max °C Useful chamber mm kW
HK-30 31 1300 270 x 420 x 270 7,5
HK-40 40 1300 340 x 500 x 240 13,5
HK-70 72 1300 400 x 600 x 300 18
HK-160 160 1300 500 x 800 x 400 26
HK-315 315 1300 630 x 1000 x 500 41
HK-600 600 1300 800 x 1300 x 580 54