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Foshan Guheng Machinery Co., Ltd.

China Manufacturer with main products: Casting Machines, Forging Machines, Furnace, Lathes

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Bell Jar Type Annealing Furnace

Payment Terms: L/C, T/T(Bank Transfer)

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Place of Origin: Guangdong in China
Packaging Details: wooden case package


Technical parameters:
1. Effective sizes of load: Φ1600×3200mm (inner diameter: Φ1400mm)
2.Loadage 35t
3. Electric heating power: 420kw
4. Rated temperature: 850℃
5. Uniformity of furnace temperature: ±5℃(in the medium term of heat preservation)
6. Working voltage: 380V
7. Cooling process: cooling by wind and water
8. Water consumption for cooling equipment : 3~5m3/h
9. Protect the atmosphere: Ammonia dissociation (mixed gas)
10. Sling height: 9m
11. Sling weight: 10T
12. Circulating fan: 37/11kw
13. Cooling fan power: 2.2KW×2
Introduction of furnace:
1.Outer housing:
welded by profile steel and steel sheet,
thickness of steel sheet is 6mm.
the brusque adopts composite structure, light refractory brick, insulation tiles and high-quality siliceous aluminous fiber cotton.
2.Heating element: the iron chrome resistance belt, which is quick heating and long lifetime etc.
3. Inner container:
stainless steel material1Cr18Ni9Ti,
thickness s = 6mm,
corrugated shape,
formed by splicing and welding,
flange is made of s=35mm steel sheet.
Cooling groove is made of stainless steel.
4. Coil base:
 s =35mm steel sheet.
 Coaming deflector and loading baseboard is made of A3 material, thickness 30mm.
Sealing ring is made of thermostability silicone material.
furnace bottom is equipped with lampblack-discharged device.
5. Circulating fan:
Adopt the technology of special kind dynamo plant in Harbin,
37/11kw double-speed motor;
fan blade and motor shaft material is Cr25Ni20 heat-resisting steel,
wind leaf diameter: Φ 800mm.
6. Cold- blast air cover:
the cover is made of s = 3mm steel,
blowback cooling,
internal sprinklers match outside quick couplers of water pipe,
wind and water cooling is automatic and can meet the technological requirements.
7. Electrical control system: divided into two divided control.
The way of temperature control is PID (phase shifting) trigger, and temperature control instrument adopts intelligent programmable degree 30 section. Recording instrument is paperless. And it can supply checkable records and storage the real-time historical data and process curve scheduled time by print users. Silicon controlled module is made of imported components, and others are brand-name products. The system is controlled by alarm display and chain safeguard measures. Furnace is equipped with temperature landmark inside which can guarantee the process requirements.
1. heating outer cover (including furnace mantle, brasque, electric heating belt)   1 set
2. inner cover (including one pair of inner cover sling)              2 pieces
3. furnace base(including circulating fan)                         2 pieces
4. cooling cover(including two pieces of axial flow fan)             1 piece
5. vacuum pump(2X-70A)                                   1 piece
6. electronic control(including temperature control, connection box, thermoelectric pair, compensate coils)                              1 set
7. atmosphere valve shelf and exhauster                          1 set
8. guide post and guide sleeve                                  1 set
9. technical documents(including specification, foundation drawing, appliance schematic diagram etc.)                         1 complete set for this machine
Process curve:
Semi-finished products 680℃~750℃, finished products 580℃~650℃.
warming 6~8h, heat preservation 12h, cooling 20h(as reference )
After-sale service:
Three guarantees (repair, replacement and compensation of faulty products ) is free for one year.
P.S. semi-finished products and finished products can be annealed by the furnace.

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