CE Approved, Hot Air Convectional Reflow Oven for Soldering

• Customization: Available
• After-sales Service: 12 Months
• Warranty: 12 Months
• Certification: CE, ISO
• Structure: Horizontal Type
• Brand: Hengli
• Temperature Zone: 5 Zones
• Chamber Temperature Uniformity: +-3.5c
• Max Temperature: 350c
• Heating Element: Use Nichrome Wire.
• Heating Mode: up and Down Hot Air Circulation Heating
• Transport Package: Wooden Box Iron Bracket
• Specification: 3600*1156*1500mm
• Trademark: HENGLI
• Origin: China
• HS Code: 8514390090
• Production Capacity: 800 Sets/Year

Product Description

     HSF5605-0504Z Hot Air Convectional Reflow Oven

• Main Application:

This furnace is designed for reflow soldering of SMD elements, chip joining and similar products. 
,Technical Specification:

1. Max Temperature: 350ºC,Temperature Range: RT~300ºC,
   1. The Effective Height of the Product: ≤50mm.
   2. Belt Width: 560mm.
   3. Belt Material: use high temperature resistant nickel chrome alloy.
   4. Max Load on the Belt: 20Kg/m2(exclude the belt weight)
   5. Drive System: meshing gear transmission between gear and belt.
   6. Belt Speed: 100~800mm/min, Stepless speed regulation control with frequency conversion.
   7. Heating Element:Use nichrome wire.
   8. Heating Mode: up and down hot air circulation heating.
   9. Firing Atmosphere: air.
   10. Exhaust System: there are one exhaust stack in entrance and exit. (please see 3.2 for details)
   11. Cooling Mode: fan cooling.
   12. The Layout of Furnace Structure: Please see the no. 3.1  
   13. Temperature Control Stability: ±1ºC.
   14. Chamber Temperature Uniformity: ±3.5ºC(Flat Temperature 250ºC),
   15. Temperature Zone:5 Zones.
   16. Temperature Control Point: 10 points.
   17. Thermocouple: K type, made in China.
   18. Emergency Stop Button: There are two emergency stop buttons at the entrance and exit of the furnace.
   19. Alarm Protection: over temp, thermocouple failure, other audible and visual protective alarm
   20. Heating Rate: ≤20ºC/min
   21. The Temperature of Furnace Surface:
   22. Outlet Temperature: <60ºC.
   23. Heating Power: 33Kw.
   24. The Insulation Power of the Empty Furnace: ≤12KW.
   25. Power: Capacity >45KVA, ,     Phase  Line, Single Phase Voltage:   V Voltage   between phases       V Frequency    HZ, the cable's color:    (supplied by customer).
   26. Weight: About 950Kg.
   27. Overall Dimension: 3600×1156×1500mm (L×W×H).
   28. Furnace Appearance: outside panel uses high temperature spraying coating and off-white color.

General Description
The furnace is devided into four major sections: furnace body, temperature control system, computer control system and drive system.  
  
3.1 Furnace Body Design
Please see Table 1 and figure 1 for detailed layout of the furnace structure.

Feague 1:Furnace Layout Drawing
 

Table 1
No.	Name	Length	Note
A	Total Length	3600mm
B	Load Table	430mm	Distance from ground height 770 ~ 820 mm, adjustable.
C	Entrance Insulation Zone	110mm	Ceramic fiber insulation
D	The Heating Zone	1775mm	5 zones, the length of each zone:355mm
E	Exit Insulation Zone	110mm	Ceramic fibre material thermal transition
F	Cooling Zone	740mm	No insulation material, mechanical fan blows the furnace tube directly.
G	Unload Table	400mm	Distance from ground height 770 ~ 820 mm, adjustable.
H	Furnace Height	1450mm	Exclude the exhaust stack height
J	Computer operation position

3.2The Design of Temperature Control System

1. Temperature Measuring: use K type thermocouple independent measuring and control on the temperature control point of each zone.   
2. Temperature Control: use of Shimaden Intelligent temperature controller to control, with PID parameter auto tuning, high temperature upper limit alarm, thermocouple failure and other protective alarm functions.
3. Heating Control System: after starting hot air circulation, the heating can be turned on. for the heating control, grouped supply the electricity by 3 alternating current contactors to reduce the instantaneous current impact to the electric fence caused by the equipment.
4. Control Mode:Solid State relay zero cross trigger mode.
5. Over Temperature Alarm: when over temperature occurred in some zones, over temperature alarm system in corresponding zones immediately send audible and visual alarm signal and meanwhile the heating of this zone is cut off, the buzzer sounds alarm.

3.3 Computer Control System
Use DCS control system, intelligent temperature controller control (Shimaden), industrial computer monitor, industrial computer can carry out multiple programs saving, real-time temperature and alarm record, data saving and printing and other functions. It also can provide the temperature calibration function in the chamber for adjusting process requirement.

3.4  Drive System Design
3.4.1 Drive Control uses the frequency converter drive frequency variable motor to control the speed by gear box. The speed is adjustable continually.
3.4.2Belt conveyor device: to drive the driving and drived wheel through chain and sprocket wheel, and then generate the friction force by driving wheel and the belt drive the belt running. There is a belt deviation guide device on the both sides at the entrance and exit.