smd soldering Oven

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Full SMT Solution Provider
Operation Manual
（Model:E8）
Shenzhen ETA Technology CO.,LTD
Website:www.smt11.com
Email:etasmt@foxmail.com
LinkedIn:https://www.linkedin.com/company/13647672
YouTube:https://www.youtube.com/channel/UCrjQtG86plRI3ipGMSJwF5w
Address:No.3,Road 3,Yangyong Industrial Zone,Shapu Village,Songgang
Town,Bao’an District,Shenzhen

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Contents
Chapter 1 Description
Chapter 2 Equipment knowledge
Chapter 3 Installation
Chapter 4 Operation Instruction
Chapter 5 Lead-free Process Descriptions
Chapter 6 Maintenance and fault analysis
Chapter 7 ESafety and precautions

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Chapter 1 Company Profile
ETA, a long-standing electronic equipment industry platform, has been continuously
contributing to the global customer base in the field of electronics manufacturing since 1999. ETA
company has excellent technical team and service team in surface mount technology (SMT),
plug-in assembly (DIP), functional test (TEST), etc. in home appliances (Such as TV, refrigerator,
air conditioner, washing machine), new energy (LED, Solar, new energy vehicles, automotive
electronics, medical equipment, semiconductors, power electronics and other fields have many
successful experiences. Our products cover SMT equipment (smt line, stencil printer, SPI, pick
and place machine, AOI, reflow oven, handling equipment), DIP equipment (plug-in line, wave
soldering machine, assembly line, belt line), test equipment, packaging equipment, etc. .
Through the deepening of ETA's globalization strategy, we have helped more than 200
customers around the world to complete the entire industry chain from program design,
production and construction, service training, etc. Our team and products have covered more
than 150 countries all around the world and area.
While exporting ETA's nearly 30 years of technical experience to global customers, we
continue to improve our R&D capabilities and production capabilities. Through investment and
equity acquisitions, ETA has more than 15 member companies in China, forming a supply chain
for the entire industry chain system.
In 2018, We helped clients plan to build more than 35 production workshops and train more
than 100 technicians. In the next five years, our goal is to continue to focus on the electronics
manufacturing industry, to provide more than 200 customers worldwide, and to provide more
professional and active technical support for customers' manufacturing.

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Chapter 2 Equipment knowledge
1.Heating principle
1.1 Form of heater
The main part of structure of the heater is the high-nickel complex hot line in a metal tube filled with
calcium silicate material. It can quickly transfer inner heat to heat storage full metal plate and regional air out of
the tube. Each plate has inner 6mm and outer 8mm hot air circulation holes in each 25mm pitch. It can blow
down laminar flow of high temperature hot air from hole.
1.2 Heating method
Hot air from the plate holes come to PCB surface, a variety of components and solder paste (SMT
adhesive).
Heat transfer to the PCB solder to ensure that temperature distribution in the machine and uniformity of
the heating temperature on the work piece.
1.3.Heating characteristics
Hot air from the plate can be passed to the PCB, solder and components, so that:
· Be able to directly heat the solder under shaded shaped components
· Be able to directly transfer heat to pad and solder
· To prevent overheating of parts
· Make different solder components temperature equilibration
· Make different positions of the solder components the temperature equilibrium
· Can weld on different materials PCB, such as: soft flexible panels
1.4 Heating structure
Model
Heating
zones
Numbers of
Upper Heater
elements
Numbers of
Bottom Heater
elements
Starting
power
Working
power
E8
Upper
8/bottom 8
8 sets 8 sets 55kw 12kw
E10
Upper
10/bottom 10
10 sets 10 sets 68kw 15kw
E12
Upper
12/bottom12
12 sets 12 sets 78kw 18kw

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1.4.1 Temperature control detection point
Each zone is equipped with a standard thermocouple detection point, which is a static temperature
detection point,for testing represent temperature in that space. (The point is accurately tested before leaving
the factory, don’t shift it without confirmation by factory).
1.4.2 Temperature Controller
Industrial control computer for temperature detection of each temperature zone, PID control and
high-power SSR driver.
2. Temperature curve
2.1 Description:
Reflow machine is to heat the surface of the PCB with the paste components PADS bit, to make solder
melt and slurry heated under reflux, to obtain the predetermined temperature to the solder paste , and without
causing any damage to the PCB and components (for example, fuel combustion or dark burning, etc.). IPC
standards welding temperature diagram:
Line A: Used for solder paste soldering.

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General in 60 seconds, PCB pad heats up from room temperature to 120-150 ℃, the rate at 3 ℃ / s or
less; from 60 -180 seconds to 90-150 seconds stabilize at about 150 ℃, less than solder paste melting point
183℃, so that the welding work piece reaches temperature equilibrium before the paste slurry liquefaction; It
stays 30 seconds from 183 ℃ to 210-230 ℃ so that solder paste can be reflowed adequately.
Line B: used for fine pitch IC and tiny components (such as 1005) and other welding techniques ,control
temperature risen sharply in the preheating zone , postpone the flux in the solder paste to soften slightly,
control the tiny solder paste tin powder to form a solder ball together .
Line C : Used for general SMD adhesive curing.
Stay at 150 ℃ for about 3-5 minutes to maintain temperature curing time.
In order to obtain maximum yield in highly automated SMT production environment, before starting
machine must set heating temperature according to the paste heating chart. And, strict supervision in working
time. Waste PCB is recommended to help to set up the digital temperature monitors of machine in use, in order
to get the paste heating chart.
3. Set temperature curve
To obtain a given temperature curve, it requires a process of seeking temperature profile, that refers to the
temperature setting and speed of mesh. Changed Products, such as the board type, thickness, component
type, the array density, the pad bit areas and types of solder paste, shape of printed tin, thickness, etc., will
affect the temperature curves.The zone classification heated hot air reflow equipment heat products by
gradually completing preheating, drying, melting and heating through progressively heating and solder paste.
The first stage is a fast heating zone, in which, PCB gets rapid warm-up; The second stage is a long slow
heating eating zone, finish drying Solder of PCBs in this stage; The third heating stage is for solder paste
molten, after functional change in the second stage, solder paste is rapidly heated and melted here, then get
reflow; solder paste cooled rapidly through the cooling zone, the above process forms a complete temperature
curve.
Now most of the machines (combined with hot air or full hot air) adopt hot air heated to reflux, that within
the security of sensitive components, to avoid direct intense heating on components, top heating is relatively
stable, through the hot air convection and heat conduction on PADS and tin slurry so that the surface

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components are welded stably. By this way, temperature curve is ease, the temperature difference between
zones is relatively reduced, and the second functional areas set temperature is relatively increased.
Another change in control is the mesh speed. This will set the time that PCB board stays in oven. To
match the soldering process of PCBs. Multi-layer PCB boards requires a little longer time in the machine,as it
is thickner,relatively need a longer time to achieve a unified balanced heating.
Heaters on top and bottom are controlled independently, so that the board can be heated on top or
bottom surfaces. Thus, if the element is sensitive to heat, you can choose to heat its backside.That means the
bottom warming. About half of the total energy are used in the bottom preheat zone , this peak HF energy can
pre-warm the PCB board evenly , thus reducing the surface impact to damage components, and reduce heat
absorption of components. Small amount of energy is applied to the top to minimize warpage. If an insensitive
component is to be heated, the preheat temperature can be set higher. Long-wave Energy from top and
bottom dryness area may heat the tin point slowly (and dryness). For hot air reflow in full hot fan, the top and
bottom surfaces are mutual control and relatively stable balance. The top surface temperature is relatively
higher. In the recirculation zone, full hot fan’s force micro hot air reflow will be used to melt and reflow solder
paste.
Temperature curve is established by:
First, classify the PCB boards to determine the heat absorption, component types ,density and degree of
difficulty with the PCB production capacity in order to determine the top, bottom and reflux strategy determining
a point, a set of components and machines with a thermocouple is conducive to promoting the process of
temperature curves. But this is not essential, the starting point as follows,take E8 for example:
ORIGIN POINT
ZONE: 1 ……Upper preheating zone ZONE: 2 ……First upper dry zone
ZONE: 3 ……Second upper dry zone ZONE: 4 ……Upper reflow zone
ZONE: 5 ……Lower preheating zone ZONE: 6 ……First lower dry zone
ZONE: 7 ……Second lower dry zone ZONE: 8 ……Lower reflow zone
General machine completes cooling function with natural cooling curve.
Note: These are general starting point (in the basis of four eight reflow temperature, the other by analogy,
the 1st preheat zone includes zone 1and 6.The 2nd,3rd ,and 4th drying zone includes zone 2,zone7,zone
3,zone 8,zone 4,and zone 9. The 5th reflowing zone refers to zone 5 and zone 10), once the subject of a PCB

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board temperature curves for the End, similar to the PCB board is well on the PCB can be affected by
temperature map (in increasing tape speeds) as a starting point.
4. Temperature zone Description:
4.1 Preheating zone:
Preheating zone, also known as rapid heating zone, is used to preheat the PCB and solder paste to
improve the boiling temperature of the flux. In the bottom of the heating strategy, the temperature zone is the
key. Energy into the preheating zone, generally there is sufficient time to conduct or radiate to the PCB, so that
the board can quickly reach thermal stable equilibrium point, to ensure sufficient time for the drying zone.
As effect of components’ thermal contingency, heating rate should be within 3 ℃ / sec, otherwise it may
damage relatively heat-sensitive components.
4.2 Dry zone:
Above mentioned temperature zone is a slow long-temperature zone, PCB stays in this temperature zone
for a longer time, after a quick warm-up, when the PCB through these areas, the temperature fluctuations of
PCB is small, in this almost constant temperature environment. Various ingredients occur quickly and
efficiently physical and chemical reactions of themselves, to do PADS copper, tin and solder paste on PCB For
preparation of the next step of melting and reflux, and the solder paste will be dried slowly.
4.3. Reflow zone:
Represents the reflow soldering area, full hot air heating system provides the PCB enough energy to melt
and reflow the solder paste. In general, temperature on the upper zone is higher than lower reflow oven in
order to reflow the top of PCBs.
5.Temperature settings
5.1. Set the zone temperature and belt speed to be starting value (usually starting value is given by
machine manufacturer).
5.2. For annealing furnace, needs 20-30 minutes to warm up.
5.3. The temperature reaches equilibrium; make the sample PCB cross the heating zone, in which the
solder paste is set to reach reflux point. Such as: If reflow process does not occur, follow step 4.If reflow too
much, and maintain and correct the temperature settings, put the sample PCB through the system again until

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reaching the reflux critical point, turn to step 4, as per when and only when there is no or just inverse flow.
5.4. If reflux does not occur, reduce the belt speed 5% to 10%, for example: belt speed is 500mm/min
without reflowing, make adjustment to 460 mm / min or so. Generally speaking, reducing the belt speed of 10%
will increase product reflux temperature about 30F. Or, without changing the belt speed, appropriately increase
the setting temperature, the temperature increasing rate should take the standard reference curve as the
center, adjust the temperature as per the difference between actual temperature and standard curve, generally
adjust the temperature at 5 ℃ for each gradient, please note that the temperature adjustment should not
exceed the capacity of PCBs and the components.
5.5. Then make the PCB board reflowed with new belt speed or new setting temperature, if no reflux
occurs, back to step 4, otherwise make step 6, fine-tuning the temperature curve.
5.6. Temperature curves can be adjusted appropriately by the complexity of the PCB. You can use mesh
speed two scale (1-5% belt speed) to tune. Reducing mesh speed will improve the product temperature.
Conversely, increasing mesh speed will reduce product temperature.
5.7. Tips: If the PCB board with components is not fully reflowed through oven, adjust the system and
make another reflow into the reflow soldering, normally it will have no bad effects to the PCB and components.
5.8. Generally set the temperature from low to high, if the temperature is too much larger than the reflux
temperature, please increase the belt speed or decrease setting temperature. Opposite to Step 4.

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Chapter 3 Installation
1. Installation place
1.1, Please run machine under clean environment.
2.2, Avoid high temperature and humidity environmental conditions to keep and run machines.
1.3, Please do not install the machine near sources of electromagnetic interference.
1.4, When installation, do not place reflow furnace inlet and outlet facing fan or a window with wind in.
2. Safety Precautions
2.1, When machine in use, do not put anything other than workpiece into it.
2.2, Please pay attention to high temperature to avoid scalding when operation.
2.3, Boot machine under normal temperature during overhaul.
3.Operating environment
Ambient temperature: operating temperature should be between 5-40 ℃.
Relative Humidity: This series machine working environment relative humidity should range from 20-95%.
Transportation and storage: This series machine can be transported and storage in the range of -25-55 ℃.
Within 24 hours, it can stand high temperature less than 65 ℃, during transport, please try to avoid excessive
humidity, temperature, vibration, pressure and mechanical shocks.
4. Power supply
Please use the three-phase five-wire, 380V (recommended 16mm² wires),
Reliable grounding, the wiring must be carried out by a qualified electrician.
5. Height of reflow oven adjustment
Adjust the height and horizontal transmission by the bottom feet of the machine. The adjustment method:
use industrial or alcohol level meter to measure, and then adjust the feet back and forth from left to right
repeatedly until it is fully attained.
6. Notice to users
6.1, Operate the reflow oven in a clean environment to ensure the welding quality.

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6.2, Do not use or storage the oven in the open air, high temperature and humidity conditions.
6.3 do not install the machine nearby the electric and magnetic interference sources.
6.4, Shut off the power to prevent electric shock or cause a short circuit when check and repair machine.
6.5, after movement of repair, each part is required to be checked, particularly the position of mesh, make
sure it won’t be jammed or fall off.
6.6, The machine should remain stable, without tilting or instability. By adjusting the bottom foot cups,
keeping transport chain at the horizontal level, to prevent PCB board from displacement during transmission.
6.7, when operation please note that high temperature to avoid scalding.
6.8 do not put too bulky, too much heat absorption to avoid damage to the transport mesh and influence
temperature of oven.

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Chapter 4 Operation Instruction
1. Preparation before operation
1.1, check the power supply voltage 3-phase 5-wire 380V +1 N + G.
1.2, check the main circuit wires in electrical box loose or not, make sure reliable connection.
1.3, check whether the device is grounded reliably.
1.4, Check if there is a foreign object in the electric box.
1.5, check if the belt stucked by foreign objects.
1.6, check the transmission bearing lubrication.
1.7, check whether the temperature terminals are loose or got burned.
1.8, check the control card connected or not.
1.9, check whether the drive chain is with temperature lubricant.
1.10, check whether the external exhaust pipe smooth.
1.11, check whether the air transport motor abnormal.
1.12, check the inverter extension cable is loose or not.
2. Operation sequence
2.1, close the main switch
2.2, Press the UPS switch
2.3, Start button switch
2.4, start the computer into the following operating interface

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2.5, Start Heating: In the main operating screen, click "Start", "drive", "air transport", "warming" ,Then
machine will start heating as per the setting temperature. when there is no communication with Hot
air,drive,oven cannot work at the moment.
2.6, Temperature setting:
2.6.1 Click SV value on the main screen, enter the temperature value, click to confirm;
2.6.2 Click "temperature settings" on the main screen shown as below, enter the appropriate value ,then
click OK.
2.7, Function parameter setting:

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2.7.1 Click "Operation" on main screen,will pop up the following interface: If you want to set the variable
frequency speed and other related functions, click the appropriate button.
2.7.2 There’s "locking system" in the interface, the key is for machine adjustment ,maintenance, and
testing from manufacturer, can not freely enter, otherwise it will have serious consequences.
2.8.Settings for Transmission speed and motor rotary speed:
2.8.1, In the main screen,click "Operation", look for "System Settings" pop up, as following interface
2.8.2, Modify the motor rotary speed and frequency inverter rate.
2.8.3, Please do not arbitrarily modify the parameters.

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2.9 Temperature curve test
2.9.1, prepare temperature curve test plate : Temperature plug inserted;
2.9.2, Put the test plate into the oven ,make it walk into the chamber with chain and mesh;
2.9.3,Click "Test" to enter the temperature curve test status;
2.9.4, print, save, saved as pictures, etc. according to the corresponding instructions.
2.10.Process
parameters:

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press “Open” in the main interface, you can also use the previous operating parameters.
2.11.View history: In the main interface,press "record."
2.12. Port debug: temperature zone heating and alarm light switches can be turned on/off
individually ,easy maintenance.
Chapter 5 Lead-free Process Descriptions
1. Lead-free solder

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Alloy composition Dissolution temperature Tensile Strength Elongation
SN-3.5AG-0.7CU 217-220 39 31
SN-3.1AG-1.3CU 217 50 32
SN-0.3AG-0.7CU 216-227 25 40
SN-3.0AG-0.5CU 217-221 37 33
SN-0.7CU 227 28 34
SN-3.5AG 221 43 45
SN-37PB 183 49 44
2. Paste
Use ordinary solder paste 63 | 37 or lead-free solder paste ,set the temperature of each zone and
transportation speed according to the temperature curve given by paste manufacturer.
E-series Reflow oven E10
Introduce:
High-end reflow oven in china
Heating System
> Eight groups of top and bottom forced hot air convection heating zones.
> Patented heating plates in each zone uniformly transfer heat to the PCBs using forced hot air convection.
> Independent temperature control in each zone to ensure temperature uniformity within the process tunnel.
> Power consumption savings of 1/3 as compared to other systems.
> Patented motorized blower in each zone is designed to ensure stable air pressure, withstand high process
temperature and is disturbance-free.
> Audible and light tower alarm for temperature limits, PCB drop, PCB jam and blower malfunction.
> Fast start-up (within 20 minutes) from room temperature to work temperature due to the high efficiency of the
motorized heating plates.
Cooling System
> Two (2) groups of forced air convection cooling zones.
Distortion-free Conveyor System with Automated Chain Lubrication
> Combined pin chain rail and mesh belt conveyor system (Note: Mesh belt is not available on machines with

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center board support. )
> Closed-loop computer control of the conveyor provides a precise and repeatable reflow process.
> Automated chain lubrication system with a computer controlled central reservoir. Lubricant is added directly
to the conveyor brush eliminating operator interface for this maintenance.
Fresh Air Recharge System
> Fresh air is supplied to each zone uniformly to provide a rapid process transfer.
Flux Management System
> Air amplifier forces supercharged flux collection and recirculation.
> Flux exhaust chimney with drawer shaped filter net is easy to access for maintenance.
Control System
> PC control system with windows based control software.
Additional Features
> Integrated UPS will be automatically activated in case of main power failure and will keep control PC and
conveyor running for minimum 8 minutes to send out PCBs inside the oven tunnel.
> Motorized hood lift allows easy access to the inside of the oven for service and maintenance.
> Five (5) profiling ports and integrated profiling software are designed for convenient temperature profiling.
> Swing arm control PC station
> Four (4) emergency stop switches
> Two (2) exhaust ports
> SMEMA interface
> System documentation
Model E8
GENERAL
Outside dimension 5000x1200x1490mm
Standard color Computer grey
Weight Approx. 1750kg
Number of heating zones Up8/bottm8
Length of heating zones 2420mm
Number of cooling zones 2(built-in)
Exhaust volume 10M3/minx2 Exhausts
Standard feature of control system
Electric supply required 3phase, 380V 50/60Hz
Electric power required 55KW

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Power for warm up 55KW
Power consumption 12KW
Heating pattern Up& Bottom Hot air
Warming time Approx. 30minute
Temp. setting range Room temp__300degree
Control system PLC+ Computer
Temperature control method PID close loop control +SSR driving
Temperature control precision ± 1.0degree
Temperature deviation on
PCB
± 1.5degree
Data storage Process data and status storage (80GB)
Abnormal alarm Abnormal temperature(extra-high/extra-low temp)
Board dropped alarm Tower light: yellow warming: Green-normal: Red-abnormal
Standard features of conveyor system
Max. width of PCB Max: 450mm(Standard)
Rail Number 1 Lane(standard)
Components clearance Top/bottom clearance of PCB is 25mm
Conveyor height Light → right(option: R→ L)
PCB transmission agent Air-reflow=chain +mesh (Standard)
Conveyor height 900/± 20mm
Conveyor speed range 300~2000mm/min
Chapter 6 Maintenance and fault analysis
1. Precautions
1.1 Machine body must be grounded
1.2 Operated by specific worker.
1.3 Lubricant the drive chain with high temperature grease every 7 days.
1.4 Red light,Stop working .
1.5 Do not put flammable, explosive hazardous materials near the reflow oven.
1.6 Do not put your hands, body into reflow when it’s working.
1.7 Do not change the parameters of frequency or temperature table arbitrarily.
1.8 Do not insert foreign objects in the mesh transmission
1.9 Lubricate the bearings with high temperature grease once a month.
1.10 Follow instructions.

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2. Routine maintenance
2.1.Keep electronic wirings clean.
2.2 Check the fan shaft sleeve loose or not.
2.3 Check the fan drive flexible or not.
2.4 Check if there is abnormal sound on the fan and drive motor.
2.5 Check if there are foreign objects blocking the air inlet and outlet.
2.6 Check the transmission belt loose or not.
2.7 Check whether there is abnormal sound in electrical power box.
2.8 Check whether the transmission part is loose and abnormal sound.
To ensure machine parts may work properly,please check if the operating voltage is within safety limits or
stable before starting machine.Then check if the parameters are same with the ones before shutdown.Don’t
shutdown machine when the conveyor belt at high temperatures to stop it aging fast.Better stop machine when
its body temperature cools down.
Generally machine works every day, as per the indoor environment requirements,clean the main case
every day , as well as the residue in outlet to keep machine clean and work smoothly.
2.9 Conveyor belt:
A, lubricate the drive chain with high temperature oil (molybdenum disulfide) every two months.
B, while using follower roller (outside the device) to maintain belt tension, you need to keep the tension
rails clean and dust free. Or, while two roll parallelism adjustment, you need to adjust top wire near to the
follower roll.
2.10 Motor:
Under long-term high-speed operation, motor should be lubricated with high temperature shaft oil no less
than twice a week to keep it runs smoothly.
2.11 Fan:
Clean the fun timely to avoid short circuit or fun burned.
2.12 Grounding:
If machine is with 3-phase 4-wire system, must keep machine connected to ground with a wire. Checked
the ground wire is switched on or not before starting. (3-phase 5-wire system is better)
3.Common fault

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3.1 Red light:
3.1.1 Check whether the main controlling circuit has phase;
3.1.2 Check whether the control thermocouple is open;
3.1.3 Check whether the main circuit SSR control segment is damaged
3.2 Fail to boot:
3.2.1 Check power supply ;
3.2.2 Check whether the control power off;
3.2.3 Check the emergency stop switch is reset.
3.3 Conveyor belt stops working.
3.3.1 Check whether the transmission driver has power;
3.3.2 Check whether the inverter connection problems;
3.3.3 Check whether the conveyor motor is running;
3.3.4 Check whether the conveyor chain is disconnected;
3.3.5 Check whether the conveyor belt is stucked by foreign objects.
3.4 No heating
3.4.1 Check wether the air transport, transmission switch is turned on;
3.4.2 Whether heating switch is turned on;
3.4.3 Control SSR unipolar switch closed or not;
3.4.4 SSR damage.

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Chapter 7 ESafety and precautions
1.How to use this manual
Congratulations on purchasing ETA reflow soldering. This device is designed to meet a wide range of reflow and PCB
applications. Proper use and maintenance in accordance with the operating instructions in this manual will greatly
increase the service life of the equipment.
This manual applies to all ETA sales series reflow soldering, covering the installation, operation, troubleshooting and
maintenance procedures for all models of electrical and mechanical systems. This manual provides safety guidelines to
follow when operating a reflow soldering system. These guidelines will ensure life safety and protect equipment during
installation, operation, maintenance, troubleshooting, and other potentially hazardous procedures. Safety training is
available if needed.
2.Equipment installation precautions
1. When unpacking and installing reflow soldering, use appropriate fork lifts and follow the instructions. Failure to use
the correct tools and equipment will result in personal injury or property damage.
Figure 1 Fixed foot adjustment diagram when moving horizontally
2. Recharged power supplies should be connected by a qualified electrician and must comply with all applicable
electrical and safety regulations. For the requirements of the power supply, please refer to the instruction manual.
Failure to comply with electrical regulations or use cables below the rated power requirements may result in property
When moving the reflow soldering horizontally
indoors, the fixed foot should be raised to move the
wheel after the force is applied. Adjust the fixed foot
nut with the adjustable wrench, adjust clockwise to fix
the fixed foot, and counterclockwise to adjust the fixed
foot.

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damage and may expose the operator to dangerous voltages. The following figure shows in detail how to connect the
power box and the power cable:
B. reflow soldering power wiring position
With this signal as a reference,
counting from left to right, the
second cover opens.
1 2
Input cable requires more than
10 square meters of cable and
Input power control switch
minimum required current 100A

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B.Assembly computer wiring diagram C. Backup power wiring picture
Figure 1 Reflow soldering mains wiring instructions
3. Install the equipment in a clean environment, avoid installation in a hot and humid environment, and there is no
electricity or magnetic interference near the environment. When installing, do not put the inlet and outlet of the reflow
soldering into the window of the fan, air conditioner or windy air. Ventilation port description: as shown below
Three-phase (380V)
terminals correspond to
R, S, and T terminals
The neutral terminal
corresponds to the N terminal
Ground
terminal
Wiring is not divided
into positive and
negative

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reflow soldering outlet outer diameter
3.Equipment use and maintenance precautions
1. Regularly add lubricating oil or grease to the specified parts of the rotating parts.
Figure 2 Furnace chain oil device
Regularly open the
secondary device to add
lubricant to the chain,
check the oil level, each
time should not exceed the
red line in the figure
Both ends of the air
outlet, need to
connect the exhaust
equipment
150MM
Matching air volume
is 2800-3800 cubic
meters / hour

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Figure 3 The operating part of the lubricant that needs to be regularly filled
2. Keep clean often, must be regularly tested, sorted and cleaned according to maintenance regulations.
.
Figure 4 Reflow soldering top fan port
3. Regularly check the cooling fan to ensure long-term work to ensure that the electrical components in the hot air
motor and the electrical control box work normally without burning out.
4. Forced air suction at both ends of the machine must ensure the smooth flow of the pipe, so as to achieve the best
effect of discharging the solder paste volatilization gas and cooling the furnace body.
5. When cleaning the device and the surrounding environment, you must first confirm that the device has completely
stopped, and after the temperature has dropped below the safe temperature, wear high-temperature gloves, a mask, a hat,
and protect your eyes.
6. The supporting files installed in the computer hard disk are strictly forbidden to be changed by the user to avoid
causing computer control confusion, and the control computer is forbidden for other purposes
The top cover fan fan is
strictly prohibited from
being covered by objects,
and the fan port is
regularly cleaned of dust.

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.
Figure 5 Manual rocker
4. Safety precautions
1. Please read the precautions in this manual carefully when operating and operating this equipment.
2. It is absolutely forbidden to use fire or smoke near this equipment.
3. It is strictly forbidden to put anything other than the workpiece into the machine during use.
4. This equipment can only be operated by professional maintenance and repair personnel or qualified personnel.
5. This equipment is strictly forbidden for users to carry out dangerous transformations.
6. When performing maintenance and repair, try to shut down as much as possible at room temperature to ensure safety
and prevent misuse by others.
7. When performing maintenance and repairs, the operator must wear overalls and a cap that covers the hair. Do not wear
a tie, necklace, or open cuffs.
8. When the equipment is not cooled to normal temperature, it is strictly forbidden to put solvent into the furnace to
prevent the risk of fire and explosion.
9. During repair and maintenance, after using the solvent, ensure that the solvent is completely evaporated and odorous,
and then close the furnace cover to heat the furnace to prevent fire and explosion.
10. When the device is not used for a long time, please turn off the main power supply and the uninterrupted (UPS)
power supply. Please check each part before running.
Put it in a fixed position to
prevent equipment failure and
use it when there is something
in the stove.

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11. In the place that should be paid attention to during operation, the device is marked with a warning sign. Please refer
to the instructions below for warning signs. Please read it carefully.
12. Please keep this safety manual in a safe place for future reference.
5. Warning label description