Snap-On MIG225Ai User Manual

225 AMP DOUBLE PULSE MIG WELDER
WITH DOUBLE WIRE FEEDERS MIG225Ai
The MIG225Ai double pulse is a 230VAC single-phase synergic inverter power source for MIG wel-
ding. This versatile power source is suitable for various applications from general repairs to specic
material types used in the body shop industry. Welds a variety of material types and thicknesses
such as steel, stainless-steel, aluminum, high strength and boron steels. Preset synergic curves
automatically provide proper settings for individual situations and reduce set up times.
INTRODUCTION
3301056

Snap-On MIG225Ai Specifications

General

Brand	Snap-On
Model	MIG225Ai
Category	Welding System
Language	English

Summary

Introduction

Safety Information

Understanding Safety Alerts

Explains signal words, message structure, and icons used in safety warnings.

Arc Welding Hazards

Details dangers like UV rays, spatter, and required protective gear for arc welding.

Electrical Shock Hazards

Warns about contacting live components, absence of grounding, and proper connection.

Explosion and Fire Hazards

Discusses risks of sparks, flammable vapors, and potential explosions during welding.

Electrical and Magnetic Field Risks

Addresses hazards from electrical/magnetic fields and their effect on medical equipment.

Equipment Disposal Precautions

Provides guidance on environmentally safe disposal of electrical equipment.

Specifications

General Descriptions

Provides a general overview of the welding machine and its technology.

Technical Specifications Explanation

Explains the meaning of various technical specifications listed on the machine plate.

Protection Devices

Details the machine's built-in safety features like block protection and thermal cutout.

Features

Description of Equipment

Display Screen and Controls

Identifies and describes the function of the display screen and control knob.

Connections and Components

Identifies various connection points and components of the welding machine.

Assembly and Setup

Initial Unit Assembly

Guides on initial setup, power connection, and component mounting.

Wire Feed Unit Preparation

Details preparing the wire feed unit, mounting wire coils, and selecting rollers.

Quick Start Guide

Getting Started Operation

Offers a concise guide for getting the welding machine operational quickly.

Advanced Setting

Synergic Curve and Process Selection

Explains how to select synergic curves and set welding processes.

Welding Mode and Spot/Pause Adjustment

Guides on choosing welding modes and adjusting spot/pause times.

Hot Start, Crater Filler, and Double Pulse

Details adjustment of hot start, crater filler, and double pulse welding parameters.

Arc Control Settings

Covers adjustments for burnback, soft start, inductance, and pre-gas.

Post-Gas, Units, and Factory Reset

Explains post-gas settings, unit changes, and factory reset procedures.

Maintenance and Repairs

Welder Maintenance and Safety

Provides essential safety warnings and general maintenance steps for the welder.

Post-Repair Verification

Outlines procedures to follow after making repairs to ensure safety and integrity.

Replacement Parts List

Torch Consumables

Lists consumable parts specifically for the welding torches.

Wiring Diagram

Warranty and Service Policy

Two-Year Limited Warranty Terms

Outlines the terms and conditions of the two-year limited warranty for the equipment.

Welding Operation Guide

Torch, Wire, and Current Setup

Details setting the machine for aluminum wire and adjusting welding current.