Wesman has a full range of spring Heat Treatment Furnaces up to a capacity of 11 MTPH to offer to the Coil and Leaf Spring Manufacturing Industries. These Furnaces comprise of Hardening and Tempering Line. The Hardening Furnace can be Walking Beam Type with Quenching Facility for Polymer or Oil as per the process requirement and the Tempering Furnace can be Conveyor Type.
The Leaf and Bars or Cylinders can be loaded to the Hardening Furnace by suitable charger or manually over water cooled rollers. The Hardening Furnace can be Walking Beam Type with minimum number of walking beams depending the length of the Leaf Springs and the Coil Bars to minimize the heat leakages. The Walking and the Fixed Beams are provided with suitable saw teeth and curved teeth to have minimum supporting area for the Leaf Springs and the Coil Bars for better heat treatment during hardening. The walking beam can be Hydraulically or Electro-mechanically operated. The Leaf and Coil Bars can be end-discharged at the opposite end or side-discharged over water cooled Rollers to suit customer’s press for forming Leaf and Coils tailor made to give best results.
The Tempering Furnace can be Conveyor Type and located as per the space available of the customer for suitable tempering.
The furnaces are fired with Wesman’s high efficiency burners supported by a full complement of combustion system consisting of combustion fan, atomizing fan, oil heating and pumping systems and/or gas trains. In addition auto ignition, flame failure safety and complete control systems are offered. Practically any type of liquid or gaseous fuel can be used viz. Furnace Oil, Light Diesel Oil, LPG and Natural Gas singly or a combination of any oil or gas in case of dual fired furnaces.
The Hardening Furnace is provided with Recuperator to improve fuel efficiency, the Recuperator will heat the combustion air up to 2000C and the pre-heated air will be supplied to the burners.
The Tempering Furnace can be Directly Heated through Burners located behind stainless steel baffles. The Tempering Furnaces are provided with Recirculation fans for Better Heat Transfer Through Convection and good Temperature Uniformity.
The Hardening Furnace are lined with High Temperature Grade Ceramic Fiber Lining at the side walls and Modules at the roof and door .The bottom hearth of the furnace will be provided with combination of high alumina bricks backed by insulation bricks to minimize the skin temperature.
The Tempering furnace can be of Double Wall construction with inner SS 304 and outer MS or with Cera board with back up Ceramic Fiber Lining at the side walls roof and door .The bottom hearth of the furnace will be provided with combination of medium grade alumna bricks backed by insulation bricks to minimize the skin temperature.
Additional accessories like, Roller tables at charge and discharge side, Closed Circuit TV Cameras for viewing charge and discharge operations from the control room, On-Line Oxygen Analyzer for flue gas are offered to suit each user’s need.
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