SMT Nitrogen Generator

SMT Nitrogen Generator

In the precision world of surface mount technology (SMT), welding quality directly determines the reliability and life of electronic products. Nitrogen reflow soldering and wave soldering have become core processes to improve welding quality and reduce oxidation defects. Our SMT nitrogen generator is specially designed for this type of electronic assembly line. By producing high-purity nitrogen instantly on the production line side, it provides you with a more economical, safer and more controllable solution than liquid nitrogen and bottled gas.
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Product Introduction

This series of SMT nitrogen generator is an intelligent and efficient on-site nitrogen generation equipment. It uses mature pressure swing adsorption (PSA) technology to obtain air directly from the environment and separate pure nitrogen. This equipment can stably produce nitrogen with a purity of 99.9% to 99.999%, which perfectly meets the stringent requirements of the reflow oven for protective atmosphere. The core of its design is real-time production and on-demand supply, which completely eliminates price fluctuations, transportation risks and supply interruption risks of traditional nitrogen supply methods, allowing your SMT production line to achieve cost reduction, efficiency improvement and seamless operation.

 

Why does the SMT production line need a dedicated nitrogen generator?

In SMT welding, the introduction of nitrogen protective atmosphere can significantly:

  • Significantly reduces welding oxidation: effectively prevents oxidation of pads and components, and improves the gloss and reliability of solder joints.
  • Improve welding yield: Reduce defects such as bridging and false soldering, which is especially important for welding of fine-pitch components.
  • Improve wetting properties: Make the solder have better fluidity and spreadability, and enhance the welding strength.
  • Reduce flux residue: In a nitrogen environment, the amount of flux can be reduced and the burden of subsequent cleaning can be reduced.

Our SMT nitrogen generators are tailor-made to achieve these advantages.

 

Core Performance Indicators

Item

Parameter Specifications

Output Nitrogen Purity

99.9% ~ 99.999% (Precisely adjustable according to soldering process requirements)

Nitrogen Flow Rate Range

10 ~ 500 Nm³/h (Covers mainstream single and multi-line reflow oven demands)

Outlet Pressure

0.6 ~ 0.8 MPa (Stable and adjustable, directly matches reflow oven inlet pressure)

Dew Point

≤ -40°C ~ -60°C (Effectively controls moisture content)

Operating Temperature Range

5°C ~ 40°C (Suited for standard industrial workshop environments)

Energy Consumption Index

≤ 0.10 kWh/Nm³ @99.5% purity (Industry-leading energy efficiency performance)

 

Industry applications and value

This device is ideal for use in electronics manufacturing, especially for:

  • SMT reflow soldering and wave soldering: provide continuous and stable nitrogen protection for various lead-free soldering processes.
  • Automotive electronics manufacturing: Meet the stringent welding quality standards for high-reliability automotive electronics PCBA.
  • Communication equipment production: serving the precision assembly of high-end motherboards such as base stations and servers.
  • Flexible circuit board (FPC) assembly: Effectively prevent oxidation and deformation of FPC during precision welding.

 

Detailed Technical Parameters

Category

Description

Working Principle

Pressure Swing Adsorption (PSA) technology using carbon molecular sieve as adsorbent for highly efficient nitrogen-oxygen separation

Intake Air Requirement

Oil-free compressed air (recommended with pre-installed refrigerated dryer), pressure ≥0.7MPa

Control System

Intelligent PLC + color touch screen, featuring one-button start/stop, real-time monitoring of purity/pressure/flow, with fault self-diagnosis and remote communication interface

Key Components

Imported brand pneumatic valves, high-precision oxygen analyzer, and stainless steel grade air receiver ensuring long-term stable operation

Installation Requirements

Install in ventilated, clean, vibration-free area, close to both point of use and compressed air source

Output Interface

Flexible pipeline distribution solutions tailored to customer's reflow oven quantity and layout

 

Quality and safety certification

We firmly believe that excellent quality is the cornerstone of stable operation of equipment. Our SMT nitrogen generator strictly follows international standards to ensure that you get not only a product, but also a commitment.

  • International quality system: Fully comply with the ISO 9001 quality management system for design and production.
  • Pressure vessel safety: The core pressure vessel components comply with ASME design and manufacturing specifications to ensure safety.
  • Electrical safety compliance: The electrical system complies with CE safety directives to ensure user safety.

 

Beyond the device itself: providing you with complete solutions

Choosing our SMT nitrogen generator means you get a comprehensive partner. We not only provide high-performance equipment, but also:

  • Process optimization support: Assist you in debugging optimal nitrogen purity parameters to achieve the best balance between quality and cost.
  • Modular design: compact structure, convenient maintenance, fast and simple replacement of consumables, minimizing downtime.
  • Full life cycle service: From site survey and scheme design to installation, commissioning and after-sales support, we are with you every step of the way.

 

Contact us at Shenger Gas immediately to obtain exclusive SMT nitrogen solutions and energy-saving benefit analysis reports!

 

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