Automatic PCB Soldering Robot

Discover Made-in-India automatic PCB soldering robot — ideal for electronics and manufacturing industries. High precision, cost-effective, and perfect for leaded component soldering.

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Automatic PCB soldering machine SG-300X for electronics manufacturing

4-Axis Automatic PCB Soldering Robot


Overview

Robot combines precise soldering, easy operation, and cost-effective automation in a single platform. It delivers consistent solder quality, reduces manual dependency, and improves production efficiency, while offering features comparable to high-end imported machines with the advantage of local support and customization


Working Principle

The soldering iron is mounted on a precision-controlled robotic manipulator that accurately positions the tip at predefined soldering locations. During operation, solder wire is automatically fed to the temperature-controlled tip, forming consistent and reliable solder joints at each target point.


Why Choose Robotic Soldering?

Manual soldering presents challenges such as:

  • Human error and fatigue leading to inconsistent quality and reduced throughput
  • Quality variability in large production runs
  • High labor cost and operator dependency
  • Safety hazards due to heat and fumes

The Automatic Soldering Robot overcomes these challenges by providing a controlled, repeatable, and intelligent soldering process.

Key Features

Hardware Features

4-axis motion system of automatic PCB soldering robot machine

4-Axis Motion

The machine features a precise 4-axis motion system (X, Y, Z, R and Feeder), enabling accurate positioning, smooth movement, and flexible soldering of complex PCB layouts.

Weller soldering station integrated with robotic soldering machine

Weller Soldering Station

Equipped with original Weller 150W station with genuine tips and heating elements to deliver precise and consistent soldering

Touchscreen HMI interface of automatic soldering machine

10" Touchscreen LCD Interface

A HMI touch display replaces traditional teach pendants, providing a modern, easy-to-use interface for programming and machine operation—no prior experience required.

Joystick control system for PCB soldering robot machine

Joystick-Based Navigation

Solder point teaching is simplified through joystick control, eliminating complex teach pendants and making setup faster, more intuitive, and operator-friendly.

Pneumatically controlled soldering tip of automatic soldering machine

Pneumatically Controlled 150W Soldering Tip

The soldering tip’s vertical motion is pneumatically actuated, enabling faster response, reduced cycle time, and stable operation during repetitive soldering tasks.

Automatic solder wire feeder in PCB soldering robot machine

Solder Feeder

Detects solder wire run-out or jamming and pauses operation to prevent missed joints, while V-Groove mechanism pierces holes in the solder wire to reduce solder bursting and flux residue, ensuring cleaner soldering.

On-tip inspection camera in automatic soldering robot

On-Tip Camera

HD camera mounted on the soldering head provides live feed for enhanced visibility and real-time inspection.

Automatic soldering tip cleaning system in soldering machine

Automatic Tip Cleaning

A built-in air-blast system periodically cleans the solder tip, ensuring optimal performance, reducing manual maintenance, and extending tip life.

Automatic temperature control system in PCB soldering machine

Auto Temperature Control

Each solder point can assigned an individual temperature, automatically controlled by intelligent software to ensure consistent joint quality and minimize thermal stress.

Software Features

500+ Soldering Programs

Supports storage of over 500 soldering programs, allowing easy creataion and quick program load to suit different PCB designs and production requirements.

Panelize

In panelized PCB, a single PCB program can be reused for the entire panel. By selecting the first reference point, the panelize function repeats the same soldering program across all PCBs, reducing setup time

Soldering Condition

50 selectable soldering conditions, allowing different parameter to be applied based on solder point type for precise control of solder amount, speed, delay, and temperature.

Import Export

Easy program import and export, ensuring fast deployment and consistent soldering without manual re-teaching.

Work Origin

Support 10 work origins, enabling the same program to be used for multiple PCBs placed at different locations. Each work origin acts as a reference point, enabling efficient soldering of multiple PCBs without creating separate programs.

Palletizing

For solder points placed at fixed X and Y intervals (e.g Berg Strip), the first soldering path can be copied and repeated automatically, saving programming time and speeding up production.

Total Run Count

Allows users to set a run-count limit for the machine. Once the limit is reached, operation is paused automatically, ensuring maintenance tasks such as solder tip changes are performed on time

Offset

Adjusts the coordinates of all stored programs at once. Useful when changes like solder tip change cause position shifts, ensuring accurate soldering without reprogramming

Loop Mode

Automatically restarts the soldering program at defined intervals, eliminating the need to start the program manually each time and increasing production efficiency.

Dry Run

Allows the program to be verified without feeding solder wire. The machine moves through all programmed points without soldering, enabling users to check alignment and sequence

Easy-to-Use User Interface

The intuitive user interface makes machine movement, program creation, program loading, and operation simple and quick, allowing operators to work efficiently with minimal training.

Live Camera Feed

Camera live feed can be seen on Display with the built-in lighting system enhances visibility during programming and operation, making it easier to monitor solder points and visually check soldering quality

Point/Drag Soldering

Point soldering and drag soldering to solder individual joints as well as continuous solder paths efficiently

Calibrate

Allows calibration of a selected program by automatically adjusting all solder point coordinates after PCB position changes

Software interface of automatic PCB soldering machine on desktop Touchscreen control software of robotic soldering machine

Application

Soldering Robot Applications

In modern electronics manufacturing, there are multiple soldering techniques available, including manual soldering, wave soldering, and robotic soldering. While wave soldering is often used for high-volume through-hole assemblies, it has clear limitations that make it unsuitable for many applications:

Leaded Components & Heat-Sensitive Parts

Wave soldering cannot handle components that require selective soldering or parts that demand controlled heating profiles. Overexposure to wave soldering can damage sensitive components or create bridging issues.

Complex PCB Assemblies

Designs where two PCBs are connected at right angles (90° joints), or boards with mechanical constraints, are not compatible with wave soldering techniques. These assemblies require precise, targeted soldering that only a robotic system can provide.

Wire & Connector Joints

Many applications involve soldering wires, terminals, leaded components and large connectors directly to PCBs. Such solder joints require point soldering with controlled dwell time and solder feed — tasks that wave soldering cannot perform.

Mixed Technology Boards

In today’s electronics, it is common to see SMT + through-hole hybrid boards. While SMT components are reflow soldered, the remaining through-hole parts still need reliable soldering. Robots offer the precision and repeatability necessary to meet IPC quality standards.

Prototype and Small-Batch Production

For low to medium volumes, setting up an entire wave soldering line is impractical and costly. A soldering robot offers the perfect balance between flexibility and efficiency, allowing manufacturers to change programs quickly for new board designs.

Frequent Design Changes

For factories handling multiple PCB designs with frequent changeovers, soldering robots allow quick program switching without tooling changes, making them ideal for high-mix environments.

Explore

Explore the Robot

automatic PCB soldering robot and soldering machine
  • HMI Touch Screen
  • Weller Soldering Station
  • Tip Cleaning Station
  • Solder Wire Feeder
  • Control Buttons
  • Joystick Control
  • Soldering Head
  • Rotational (R) Axis
  • Soldering Bed
  • Camera

Benefits

Benefits of Soldering Robot

High precision PCB soldering using robotic soldering machine

High precision

Advanced motion control ensures precise positioning and smooth movement, resulting in accurate and reliable soldering on PCBs.

Consistent solder joint quality with automatic soldering robot

Consistency

By eliminating human error and variability, Deliver consistent solder joints across a large number of PCBs, resulting in constant product quality and reliability.

High volume PCB production using automatic soldering machine

Higher Productivity

Automated soldering significantly reduces cycle time, enabling faster production while lowering labor dependency and operating costs

Flexible PCB soldering automation using robotic soldering machine

Flexibility

The system supports quick and easy switching between different PCB designs to match changing production requirements

Improved operator safety with automatic soldering robot machine

Safety

Automation minimizes direct human exposure to heat, fumes, and sharp tools, creating a safer working environment.

Production monitoring and traceability in PCB soldering machine

Monitoring

Tracks production progress, completed PCBs ensuring better control, traceability, and quick response to faults.

Made In India

Made in India Advantage

Premium Performance at a Practical Cost

Delivers high-end features and performance comparable to leading international brands, while remaining significantly more affordable—making advanced automation economically viable.

Alternative to Chinese Imports

Unlike many imported machines, local service, customization, and warranty support are often limited.
Our solution offers reliable build quality, strong local support ensuring long-term reliability and peace of mind

Local After Sales Support

Unlike imported systems, customers benefit from direct access to local engineering teams, faster service support, easier communication, and readily available spare parts.

Ideal for SMEs

Our product bridges the gap for SMEs and large manufacturers, offering high-end automation that was previously prohibitively expensive or inaccessible.

Software application desktop view Software application mobile view

Customization

Customization Flexibility

As the machine is entirely designed and developed in-house, we offer complete flexibility to customize it according to customer requirements, ensuring it is perfectly suited to specific PCB applications.

Depending on technical feasibility, customization can be implemented across mechanical design, software (application), and electronic systems to meet unique production needs.

Dual Bed/Head System

Single or dual-head and single or dual-bed designs enable simultaneous soldering and continuous operation, maximizing throughput and reducing idle time. 3-Axis variant is also available.

Stepper Motors

Designed with closed-loop / Servo / 5-phase stepper motors in place of open-loop steppers, delivering higher precision, smoother motion, and improved reliability for demanding soldering applications.

Drive Mechanism

The standard belt-driven X and Y axes can be replaced with ball screw mechanisms for higher positioning accuracy and improved repeatability.

Custom Bed Sizes / Height

Designed with larger or smaller bed sizes and Height depending on PCB dimensions and production requirements.

Soldering Stations & Tips

Customized with different soldering stations and tips from high-power to tiny tips as per pcb requirement— soldering of fine-pitch parts to heavy-duty connectors.

Customization (Software / Mechatronix)

Customization in mechanical design, Electronics, software workflow, and key components (e.g. feeder, tip cleaning station) to suit specific customer and PCB requirements.

Gallery

Photos

Soldering Robot

4-Axis Soldering Robot (Front)

Soldering Robot

4-Axis Soldering Robot (Side)

Soldering Robot

4-Axis Soldering Robot (Back)

Videos

Drag Soldering Demo Point Soldering
Full Soldering Demo | Automatic PCB Soldering Robot | Made In India Dry Run
Full Soldering Demo | Automatic PCB Soldering Robot | Made In India Drag Soldering

Want to see more soldering demos?

Explore our complete gallery of detailed demonstrations, applications.

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Technical Specification

Model SG-300X
Voltage 200–230 VAC, 50/60 Hz
Power Consumption (Max) 350 Watt
Axis Standard: 4-Axis (X, Y, Z, R, Feeder) – Options: 3-Axis, Dual-Head, Dual-Bed, Customizable.
Soldering Station Weller WT1H
Temperature Accuracy: ± 9°C
Temperature Range: 50 - 550 °C
Temperature Stability ± 2°C
Options: Other brands (e.g. Bakon)
Soldering Tip/Element Heating Element: Weller Heating Element with Silver-Line Heating Technology
Tips: Weller LHT Tips
Watt: 150W
Other Options: Bakon - 180W (Inductive Heating), Customizable.
Operating Modes Manual (Jog, Position, Speed, Coordinates, Control Commands)
Automatic (Program Run Mode)
Interfaces 10-inch Touch LCD HMI, Interactive Application.
Ports 2 x USB2.0, 2 x USB3.1, HDMI, RJ45
Teaching Methods Joystick Teaching, LCD Offline Teaching, Numeric Entry
Soldering Tip Clean Air-Blast Cleaning System (Optional: Rotating Brush Clean)
Program Memory 500+
Camera 5 MP (Fixed/Auto Focus) Solder Head Camera
Soldering Type Point Soldering, Drag Soldering
Movable range (stroke) X: 300 mm, Y: 300 mm, Z: 120 mm, R: 300° (Customizable)
Maximum Speed X/Y Axis: 500 mm/s  |  Z Axis: 300 mm/s  |  R Axis: 500°/s
Positioning Repeatability * X,Y,Z Axis: ±0.02 mm  |  R Axis: ±0.02 degrees
Drive System (Motor Type) X,Y, R Axis: Belt Drive  |  Z Axis: Ball Screw
Motor: Stepper Motor (Options: Close Loop/ 5 Phase / Servo)
Air Required for Pneumatic Operation (In-Built Air Filter)
Solder Feeder Solder Wire (θ): 0.6 - 1.8mm  |  Feeding Speed: 0.5 - 50 mm/s
Physical Buttons Power(On/Off), Emergency Stop, Run/Pause/Resume, E/P(Save), Joystick
Fume Extractor Optional
Dimension 21"x25"x39" (LxDxH) (4-Axis)
Weight Approximately 60 kg

* The repeatable position accuracy for X/Y/Z/R axis is limited to the case where the temperature of the main body is constant. The absolute accuracy is not guaranteed.

Datasheet

SG-300X Datasheet

Download Datasheet

Contact Us

Automatic PCB Soldering Robot

Product by Slightgen Solutions

The Automatic PCB Soldering Robot is developed, manufactured, and marketed by Slightgen Solutions — a technology-driven company specializing in innovative embedded products and comprehensive electronic design and automation solutions.

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Location

Lohegaon, Pune

Call Us

+91 8888694396

Email Us

info@slightgensolutions.in

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www.slightgensolutions.in