Application

l          HARDUN series forvacuum pit-type tempering furnaces are mainly used for vertical heat treatment of shaft fittings and tempering、bright annealing of other die steel、alloy steel and car fittings and bright heat treatment of copper and copper alloy.

Product characteristics

l          Linings HARDUN series forvacuum pit-type tempering furnaces are made of super light and economy energy composite materials, and their energy saving effect are obvious.

l          There is a special circulating system with large flow capacity, and then furnace temperature is well distributed.

l          The special designed structure of furnace cover efficiently decreases labor strength.

l          There is new PID diagram to control temperature with high precision.

l          There are electric interlock and temperature exceeding warming instruments and the operation is safe and reliable.

l          The precision of temperature control instrument of micro-computer could be 0.1～0.2 grand, with special furnace body structure, it can meet the precision requirements(±1.5℃) of air mark.

l          Forvacuumize the furnace before heating, then inlet protection gas to insure brightness of work pieces.

l          There is hot-blast circulating instrument in furnace, and then the temperature is well distributed and is stable.

l          The furnace pot is made of materials that are imported abroad, it is reliable and durable.

l          There is air inlet mouth on furnace cover to inlet methanol dissociation gas.

Product options

l          Beside standard size, we can produce off-standard HARDUN series forvacuum pit-type tempering furnaces according customer’s requirement.