Three Sections Preheating Stages Double Wave Soldering QEW 350 for Automatic SMT Pick and Place Production Line Machine

Overall Parameters

Model

QEW-350

Type of tin furnace

4th generation adjustable energy-saving tin furnace

Adjustable width for PCB boards

Max.50~350

Heating process of tin furnace

Direct-paste matrix three-side heating process, with up to 95% thermal efficiency

Conveyor height for PCB boards

750±50mm

Working temperature

Room temperature to 350℃, with control precision of ±1-2℃

Optimal soldering speed for PCB

800-1200mm/Min

Control precision for working temperature

±10

Soldering angle

3 to 7 degrees

Tin height detection

Conductive probe detection

Soldering angle display device

Gravity angle display

Tin feeding

Manual

Height limit for elements

Max.100mm

Temperature control method

P.I.D+SS

Range of wave height

0 to 18mm stable

Overall control method

PLC+ Computer

Number of wave peak

2

Flux capacity

/

Length of preheating zone

2000MM

Flux adding method

(High configuration) Automatic adding through pneumatic pump

Number of preheating zone

Four-step preheating zone with one thermal-compensation zone

Flux flow

5 to 100ml/min

Thermal compensation

High-frequency traceable spotlight for thermal compensation

Spray mode

Instar stepper motor + A-100 nozzle

Power of preheating zone

10KW

Flux recovery

Tray recovery

Preheating zone temperature

Room temperature to 250℃ adjustable

Power source

Three-phase five-wire system 380V

Heating method

Hot air

Total initial power

Max.22kw

Applicable solder type

Lead-free solder /

Normal working power

Approx.3-5kw

Tin furnace power

14kw

Air source

4~7KG/CM2  

Solder melting capacity of tin furnace

Approx.480kg

 Dimensions

4500*1600*1730

Tin furnace material

Cast iron tin furnace

Weight

Approx.1500kg

Housing Part

Body structure

Streamline housing design; adopt industrial channel steel frames and 2mm thickness steel plate for the housing; adopt six universal wheels on the bottom and six cup feet for positioning (for body level and height adjustment); adopt a lengthened arc tempered glass on the front door for maximum viewing angles

Front door structure

Enclosed transparent tempered glass door with two hydraulic air-spring door brace rods to ensure the largest working and maintenance space

Rear door structure

Magnet detachable structure with handcuffs for the largest maintenance space

Top part structure

A set of anti-explosion lighting

Surface treatment

The overall color is milky (frame of the glass door is azure)

Spray Party

Nozzle

The spray range is 20 to 65mm adjustable sector; nozzle height is 50 to 80mm adjustable; maximum flow 60ml / min

Air system

Adopting imported filters, control valves and pipe joints; digital air pressure display. Spray air tube uses acid and alkali resistant and corrosion resistant SMC product

Spray nozzle mobile system

The system is driven by stepper motors and intelligently controlled by a Mitsubishi PLC; it adopts limiting proximity switch and on-board light sensors for composite control; it applies automatic detection of the speed and width of PCB board before spraying.

Flux recovery system

Apply a stainless steel bending-formation tray under the nozzle to collect waste water and flux; it can be draw out and cleaned at any time

Flux exhausting and filtering system

Exhausting system: Use stainless steel bracket and double filter screens and recover as much flux as possible by utilizing the fluid characteristics

Isolating air curtain

Use air pressure knife to blow the excess flux into the recovery box and prevent it from entering the preheating zone. This can ensure production safety.

Spray box structure

All stainless steel design for convenient cleaning and maintenance. High corrosion resistance and durability

Preheating Part

Four-step preheating zone

2000mm four-step independent temperature-control preheating zone can provide enough preheating and adjustment space and deal with some larger PCBs or more complicated product; it is compatible with solid-residual or no-washing rosin-type flux; it can reduce the thermal shock of PCBs and realize even heating, to promote the production efficiency.

Temperature control method

Mitsubishi temperature collecting module and PID temperature controller are precise and reliable; imported thermocouple detection system is capable of thermocouple abnormality warning.

Heating component

The Taiwan Taizhan heating unit features rapid heating, long service life and small thermal inertia; it can heat the working space evenly.

Preheating power

Total power 22kw

Installation mode

The preheating system adopts drawer-type modular design, which is easy to maintain and clean.

Cover of preheating box

It adopts an arc and streamline design with imported CSR high-density rock wool applied to the inner side to enhance the insulation effect. The front part has an observation window to monitor the whole process.