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Well Type Carburizing Furnace

Suitable for various types of gear, gear shaft, bearing ring and other workpiece carburizing and quenching of the protective atmosphere.



Well Type Carburizing Furnace


Controlled Atmosphere Multi-purpose Furnace Heat Treatment Line

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Energy Saving Roller Hearth Furnace Heat Treatment Line

The salt quenching roller hearth furnace developed by Yajie is a new generation salt quenching equipment, adopts Yajie many new patents,idely used for bearing industries,automobile parts industries processed by atmosphere salt quenching Martensite and Bainite quenching.

Pusher Furnace Heat Treatment Line

Pusher furnace is used in the heat treatment of gear, bearing, crankshaft and other auto parts, such as carburizing, carbonitriding, tufftriding, or protective atmosphere heating and quenching. Heating method for electric heating or gas heating. Quenching medium can be mineral oil or nitrate. To meet your different requirements, we can also provide multi-process pusher furnace production lines. In one line,the processes including direct quenching, pressure quenching and bainite hardening.

Roller Hearth Annealing Furnace

Roller-hearth Atmospherec ontrollable Annealing Furnace are mainly used for atmosphere- controllable spheroidization annealing on a large scale parts of following bearing industry components: bearing ring, running pulley, steel wire rod, tubular product and etc., its spheroidization effect meets high-end customer's demand.

Well Type Carburizing Furnace

Suitable for various types of gear, gear shaft, bearing ring and other workpiece carburizing and quenching of the protective atmosphere.

Controlled Atmosphere Multi-purpose Furnace Heat Treatment Line

The heat treatment line consists of the multi-purpose furnace, cleaning machine, high-temperature tempering furnace, low temperature tempering furnace, charge wagon, stock preparation lift platform, fixed stock preparation deck and furnace control system. The equipment can be arranged in any combination as required by the user. The heat treatment system can be arranged either in a straight line or in a 2-way mode according to user's site condition.

Nitriding Furnace

There are chamber type nitriding furnace, well type nitriding furnace, hood type nitriding furnace can be selected, suitable for different products and working conditions. It is widely used in the nitriding treatment of hydraulic components, wind power gear ring, engine crankshaft, die surface strengthening, clutch friction plate nitriding, anti-corrosion nitriding and other products.

Diaphragm Spring Press Quenching Line

The treatment line is high in automation level and consistency of quality of product,and enjoys a predominant domestic market share.

Rotary Hearth Furnace Heat Treatment Line

Rotary Hearth Furnace is a high-capacity system suitable for treating per cycle a large batch of work pieces. It features the use of a single access door for loading and unloading of work pieces, and the work pieces can be loaded in furnace in an either single or multi-layer mode. The work pieces turn round along with the rotating furnace bottom, and protective atmosphere is used for heating. The line is extensively used for carburization, carbonitriding, scale-free heating of clutch gear rings, spiral bevel gears, bearing rings, and gears pressure quenching, mar quenching and bainite quenching can also be effected when the line works in combination with pressure quenching machine, water tank, oil tank or salt tank. The line has found widespread applications in sectors manufacturing auto parts or bearings.

Fire Resistant Dust Purification System

Yajie technology (tangshan) co., LTD. Production of flame retardant type dust filter is suitable for all kinds of industrial soot purification, particularly suitable for the processing of Soot dust, widely used in heat treatment shot blast machine, casting, welding and other industries such as soot purification, combined with a variety of separation technology, fully meet the environmental emission standards. It is an ideal upgrading product for current flue gas and dust purification.

Flame-retardant Flue Gas Purification System

The flame-retardant gas (or Dust) purification equipment is suitable for purification of various kinds of industrial gases, especially oily soot or various harmful gasses. The equipment is widely used in heat treatment industry and other industries where oil soot is liable to be produced. The equipment operates with a multiple of separation technologies to ensure the gas emission is up to the specified standard. It proves to be a re-generation and upgraded ideal exhaust gas, soot and dust purifying product.

Automatic Limited Quenching

Automatic limited hardening production line is suitable for the production of small variation of bearing ring and gear sleeve in large quantities, which can significantly reduce the allowance of machine adding in the early stage, improve production efficiency and reduce production cost. It is a promising heat treatment process for ring parts.

Industrial Gas Intensive Purification Equipment

In the controlled atmosphere heat treatment sector, natural gas (propane) has found ever-increasingly extensive application. With the demand on quality of heat treatment process becoming ever-increasingly stricter, the effect on quality of processed product produced by the sulphur adverse content in natural gas (propane) has become a public concern. Particularly the effect of sulphur on the formation of nonmartensitic surface on processed product produced by sulphur has been borne out to a large extent. To tackle with the problem, Yajie has developed a kind of natural gas (propane) desulphurization equipment through study over years and incorporation of advanced domestic and overseas technologies in this respect. With the use of this equipment, a supply of natural gas with extremely low content of sulphur can be steadily ensured

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