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Offline One-piece Hooded Selective Wave Soldering Machine Preheating

The Offline One-piece Hooded Selective Wave Soldering Machine Preheating is a cutting-edge solution designed for precision electronics manufacturing, offering a seamless combination of advanced technology and user-friendly operation. This standalone system is engineered to deliver high-quality soldering results for printed circuit boards (PCBs) with complex layouts, hybrid components, and tight thermal constraints. With its integrated hooded design, it minimizes heat loss and ensures a controlled environment, making it ideal for small to medium-scale production lines, prototyping, and applications requiring strict quality control.

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Product Overview


Key specifications include a compact footprint (1350L×940W×1540H mm) and a weight of approximately 280KG, ensuring easy installation and space efficiency. The machine supports PCBs up to 330×250 mm in size, with top component heights of up to 180 mm and bottom components up to 30 mm, accommodating a wide range of board configurations. Its 380V power supply and 10KW total power consumption make it suitable for global industrial use, while the infrared preheating system (3KW) ensures uniform temperature distribution to reduce thermal stress on sensitive components.


Features


Precision Selective Soldering System

The machine employs a XYZ-axis servo motor-driven movement system with linear rails, achieving soldering precision of ±0.1 mm. This allows for targeted soldering of specific through-hole or SMT components, minimizing solder waste and reducing rework rates. The PID+SSR temperature control maintains solder temperature within ±2°C up to 400°C, ensuring consistent joint quality even for lead-free soldering.


Advanced Selective Spray Fluxing

The selective spray system applies flux with 0.05 mm movement precision, using a programmable XYZ-axis mechanism to target only required areas. With a spray flux volume of 2L and adjustable cycle times (0.2–15 seconds per soldered dot), it optimizes flux consumption while ensuring thorough coverage for reliable solder adhesion.


Efficient Infrared Preheating

The bottom-mounted infrared preheater (3KW) provides uniform preheating to stabilize PCB temperatures before soldering, reducing thermal shock and improving wetting efficiency. This feature is critical for high-density PCBs and heat-sensitive components, as highlighted in industry applications.


Nitrogen Protection System

Optional N2 protection covers the nozzle and solder pot, significantly reducing oxidation and improving solder joint integrity. Under nitrogen, solder dross generation is minimized to 0.01 Kg/8H, compared to 0.2 Kg/8H without protection. This is particularly beneficial for lead-free soldering and applications requiring long-term reliability, such as automotive electronics.


Ergonomic Design & Safety

The hooded enclosure enhances operator safety by containing fumes and heat, while the exhaust system (5 m³/h) ensures a clean work environment. The 900±20 mm operating height and intuitive interface simplify operation, reducing training time and errors.



Applications


1. Automotive Electronics

Ideal for soldering sensors, control modules, and power systems in vehicles, where precision and reliability are critical. The nitrogen protection system and high-temperature stability meet the stringent requirements of automotive applications.


2. Consumer Electronics

Suited for assembling smartphones, laptops, and wearables with compact PCBs and mixed-component layouts. The selective soldering feature prevents damage to adjacent components during rework.


3. Industrial Equipment

Supports the production of robotics, automation systems, and machinery by ensuring durable solder joints for high-vibration environments. The XYZ-axis precision handles complex through-hole and SMT assemblies.


4. Medical Devices

Complies with strict quality standards for life-critical devices like diagnostic tools and monitors. The infrared preheating system minimizes thermal stress on delicate components.


5. Aerospace & Defense

Meets the demand for flawless soldering in avionics and navigation systems. The nitrogen protection system ensures long-term performance in extreme conditions.


PCBA Field

PCBA Field

Electronic Components

Electronic Components

Industrial Control

Industrial Control

Aerospace

Aerospace

Home Appliances

Home Appliances

Military Electronics

Military Electronics

Marine Electronics

Marine Electronics

Automotive Electronics

Automotive Electronics

specifications                

Parameter

Overall Dimensions

1350L*940W*1540H (mm)

Machine frame and cover

Square tube sections frame + Door

Operating height

900±20mm

Weight

Approx.280KG

Power supply

380V  50/60HZ

Total power

10KW

PCB parameter                

PCB size

Min:60(L)*40(W); Max:330(L)*250(W)(mm)

Top component height

Max180mm

Bottom component height

Max30mm

PCB Weight

Max5Kg

PCB Process Edge

>3mm

Selective spray system                

Spray movement mode

PCB movement in XYZ axis

Spray flux volume

2L

Spray cycle time

1 Sec/soldered dot(The minimum spray time can be set to 0.2 seconds)

Spray movement precision

0.05mm

Preheater System                

Bottom preheater mode

Infrared

Heater power

3KW

Selective Soldering System                

Soldering movement mode

PCB movement in XYZ axis

Movement mode

Servo motor + linear rail

Solder capacity

16KG

功率 Solder power

3.3KW

Solder nozzle size

Standard D8mm, other sizes is option

Temperature control mode

PID+SSR

Temperature setting range

Max400OC

Temperature accuracy

±2OC

Waver height

Max 5mm

Soldering precision

0.1mm

Solder dross

0.2Kg/8H(Not N2 protection);0.01Kg/8H( N2 protection)

N2 protection system                

N2 protection mode

Nozzle and solder pot

Exhaust system                

Exhaust volume

About 5m³/h

Control system                

PCB Process parameter

Setting, save , open in the PC screen

Other

PCB counting, message, alarm can be read in the PC

Common Wear & Tear Parts                

Spray flux nozzle, Soldering nozzle



Q: What is the maximum PCB size supported?

A: The machine handles PCBs up to 330×250 mm, with top components up to 180 mm tall and bottom components up to 30 mm.

Q: How does the nitrogen protection system work?

A: Nitrogen gas is directed to the nozzle and solder pot to reduce oxidation, improving solder wetting and reducing dross. This feature is optional and recommended for lead-free or high-reliability applications.

Q: What is the power requirement?

A: The machine operates on 380V, 50/60Hz, with a total power consumption of 10KW.

Q: Can the spray flux volume be adjusted?

A: Yes, the spray flux volume is set to 2L, and the cycle time per soldered dot can be adjusted from 0.2 to 15 seconds for optimal flux application.

Q: How often should maintenance be performed?

A: Regular maintenance includes cleaning the nozzle daily, checking the flux filter weekly, and inspecting the solder pot for oxidation. Detailed guidelines are provided in the user manual.

Q: Is the machine suitable for lead-free soldering?

A: Yes, the machine supports lead-free soldering with precise temperature control (up to 400°C) and optional nitrogen protection to enhance results.

Q: What training is required to operate the machine?

A: Basic training covers setup, operation, and safety protocols. Advanced training for process optimization is available through the manufacturer.

Q: Does the machine come with a warranty?

A: Yes, a standard 1-year warranty covers major components. Extended warranties and technical support are available upon request.



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Dongguan Sundarc Automation Technology Co., Ltd. (Shenzhen Sundarc Electronic Equipment Co., Ltd.) was founded in 2010, is a collection of research and development, production and sales as one of the "national high-tech enterprises". Mainly committed to research and development of high-grade selective wave soldering equipment. 

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