Designs / Automation

Infrared Soldering System

Non-contact infrared line heater system for PCB wire soldering with automated solder paste dispensing

Soldering cell with fixture and infrared line heater

Overview

Soldering without an iron

The customer's product required an operator to insert approximately six wires into plated holes of a printed circuit board.

The product was then placed in a fixture that an air cylinder moved at constant speed under a stylus dispensing solder paste over the wires. At the same time, the previous unit was soldered by a non-contact infrared line heater, with a metal mask protecting the rest of the assembly from radiant heat.

The process eliminated tinning and maintenance of soldering irons and significantly improved the reliability of the solder joints.

~6 wires

Per board

Infrared

Non-contact line heater

Pneumatic

Constant-speed traverse

Simultaneous

Paste dispense & solder

Specifications

System features

Process

Application	Wire-to-PCB soldering (approx. 6 wires per board)
Fixture drive	Air cylinder, constant-speed traverse
Solder application	Stylus-dispensed solder paste
Throughput	Paste dispense and solder cycle run simultaneously

Heating

Heat source	Non-contact infrared line heater
Heat masking	Metal mask protects the surrounding assembly
Benefits	No iron tinning or maintenance; improved joint reliability

← Back to Designs

Need a similar design?

Describe your application and I'll provide an assessment of scope and design approach.

Start the Conversation →