Pit type vacuum hardening furnace

This type of furnace,  mainly be used for  for metal parts in natural atmosphere or protective atmosphere for heat treatment.

Applicable for bright anealing tempering of carbon steel, alloy steel parts and magnetic materials in protective atmosphere, and for bright anealing of small batch of scrolling strips

Parts Description:

1), Shell:made by steel plate and structural steel.
2), Inside of furnace cover: made by stainless steel plate.
3), Burner liner: using the super light and energy conservation micropore fire-resistant heat reserving brick
4), Aluminum silicate fiber at between burner liner and shell, and also fill full of thermo-insulating power in gap.
5), Resistance wire: use the 0Cr25Al5 high resistor alloy wire installed upon brick.
6), Furnace cover: use the manual lever lifter or motor-driven or hydraulic.

7), We have installed fan which made by a heat-resistance stainless steel shaft and fan blade for uniform heating the work-piece
8), Limit switch installed near the lifter device for safety operation.

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Characteristic :

1)Rational structure, uniform furnace temperature, small upper & lower temperature difference in working zone, especially applicable for heating and heat treatment for long axial work-piece.

2) Adopt energy-saving furnace lining, fast temperature rise, low empty furnace consumption, save more than 20% of energy compare with old product.

3)The control system can be equipped with normal control instrument or instrument with micro-processor program control according to actual need.

4)When needed during process, protective atmosphere can be fed into the furnace to realize little-oxidizing heating.

5)Each product is installed with safety interlock and over-temperature device to provide reliable and safe operation and use.

1. What is your advantage to compared to others?

 First, we provided turnkey solution ,Cost-effective,highly efficient, durable and easy-to operate machine is what we deliver.

Second, we have Strict Quality Control System,Before Being dispatched from our factory all of our equipment will undergo a series of strict test,including the appearance quality test, voltage electrical test, aging test also the package strength checking

2. If our machine meets fault, how could you help us to solve it?

For failures caused by using process, we will send our aftersales engineer to discuss with you, and you should provide the video how the machine is broken,we will find out which part of the machine is broken and then we will send you the broken part By Dhl.

3. What is your warranty?

Our warranty period comes from the machine begin to run normally and we will provide the whole life technology support to you for free.

All products sold by COOLDO In warranty period,we will provide you the spare parts for free. Our engineer will help you do the aftersales through our remote control system.When out of one year warranty time, we will provide the spare parts with the cost price for the whole machine lifetime.