Kemppi FastMig MXF65 - User Manual

Questions and Answers

D
Donald TuckerAug 2, 2025
What to do if my Kemppi FastMig MXF65 Welding System machine won’t work?
- J
  Joshua SimsAug 2, 2025
  If your Kemppi Welding System isn't working, try these steps: * Ensure the mains plug is properly connected. * Verify the mains power distribution is switched on. * Inspect the mains fuse or circuit breaker. * Confirm the power source 0/I switch is in the ON position. * Check the interconnection cable set and connectors between the power source and wire feed unit are correctly fastened. * Make sure the earth return lead is connected. * Verify the function panels are switched on by pressing the orange buttons on the top left.
A
Allison BradshawAug 8, 2025
Why is my Kemppi Welding System producing dirty, poor quality welds?
- V
  victoria38Aug 8, 2025
  A dirty, poor quality weld from your Kemppi Welding System can arise from several factors. You should: * Check the shielding gas supply. * Check and set the correct gas flow rate. * Ensure you're using the correct gas type for the application. * Verify the gun/electrode polarity. For example, when using Fe solid filler wire, the earth return should connect to the – pole, and the wire feed unit to the + pole connector. * Confirm the correct welding curve is selected. * Check the correct Channel (job) number is selected on the PF65 function panel. * Ensure the power supply isn't experiencing a phase down.
J
Jonathan ClarkAug 14, 2025
Why does my Kemppi Welding System have variable welding performance?
- A
  Amy DuarteAug 14, 2025
  Inconsistent welding performance with your Kemppi Welding System can be caused by: * Incorrectly adjusted wire feed mechanism. * Incorrect drive rolls being fitted. * Wire spool overrun tension not correctly adjusted. * A blocked gun liner (replace if necessary). * The wrong gun liner fitted for the filler wire size and type. * Contact tip issues (size, type, and wear). * Gun overheating during application. * Loose cable connections and earth return clamp. * Incorrect welding parameter settings.
A
Anna WallaceAug 20, 2025
What to do if the filler wire won’t feed in my Kemppi Welding System?
- M
  mjenkinsAug 20, 2025
  If the filler wire isn't feeding in your Kemppi Welding System, you can try the following: * Check the wire feed mechanism, ensuring pressure arms are closed and correctly adjusted. * Check the welding gun switch function. * Ensure the euro gun collar is correctly fastened to the euro block. * Inspect the gun liner for blockages. * Check the contact tip for proper size, type, and wear. * Try an alternative gun to rule out gun issues.
J
Jackie Ferguson DDSAug 27, 2025
How to reduce high spatter volume with Kemppi FastMig MXF65?
- O
  ogarrisonAug 27, 2025
  To address high spatter volume with your Kemppi Welding System: * Verify the welding parameter values. * Check inductance/Dynamics values. * Check the cable compensation value if long cables are fitted. * Check the gas type and flow. * Check the welding polarity and cable connections. * Check the filler material selection. * Confirm the correct welding curve is selected. * Check the correct Channel (job) number selection. * Check the filler wire delivery system. * Ensure the power supply has 3 x phases present.

Summary

Preface

General

General introduction to the FastMig MXF equipment, its benefits, and manual overview.

About FastMig Pulse Products

Details on FastMig MXF 65 & 67 wire feeders and their compatibility with power sources.

General Safety Instructions

Crucial safety information for operating welding equipment, including PPE and general safety.

Installation

Machine Introduction, MXF 65, 67

Overview of the MXF 65 & 67 wire feeder unit components and connections.

Connection of System

Instructions for connecting water-cooled and gas-cooled system configurations.

Assembly of MIG;MAG System

Steps for assembling the MIG/MAG welding system units and connecting cables.

Accessories Corresponding to Wire Diameter

Details on selecting and using wire feed rolls and guide tubes for different wire sizes.

Welding Gun Selection

Guidance on choosing a suitable welding gun for the application and duty requirements.

Mounting and Locking of Wire Spool

Correct procedure for mounting and securing the wire spool to prevent damage.

Loading the Filler Wire and Automatic Feed

Step-by-step guide for loading filler wire into the feeder and automatic feed setup.

DuraTorque 400, 4 Wheel Wire Feed Mechanism

Information on the DuraTorque™ 400 wire feed mechanism and its specifications.

Adjustment of Pressure Arms

How to adjust the pressure arm settings for optimal filler wire feeding.

Adjustment of Spool Brake

Procedure for adjusting the wire spool brake tension for proper wire control.

Burn Back Time

Explanation of the automatic burn back time control feature for wire feeding.

Earth Return Cable

Guidelines for connecting the earth return cable and ensuring good contact.

Shielding Gas

Information on selecting and using shielding gas for welding applications.

Main Switch I;O

Operation and function of the main power switch for the welding equipment.

Operation of Cooling Unit, Fastcool 10

How to operate the Fastcool 10 cooling unit and its automatic functions.

MXF Hanging Kit

Description of an optional accessory for suspending the wire feed unit.

Control Panel Operations

Connecting and Mounting

Steps for connecting and mounting the control panel to the wire feeder unit.

Welding Software Delivery Profile

PF65 Panel Button Functions

ON; OFF Button

Functionality of the ON/OFF button for the welding panel.

Dynamics Button

Explanation of the Dynamics and ArcForce settings controlled by this button.

Gas Test Button

How to perform a gas test and adjust its duration using the button.

Wire Inch Button

Operation of the wire inch button for manual wire feeding.

Channel -

Function for selecting previous memory channels.

Channel +

Function for selecting next memory channels and locking/unlocking.

2 T;4 T Button

Selection of gun trigger logic (2T/4T) and MatchLog function.

Extra Functions Button

Access to Crater Filling, Hot Start, and MMA ON/OFF functions.

Remote Selection Button

Options for selecting panel, gun, or hand remote control.

Power Encoder Potentiometer

Adjustment of wire feed speed or power using the encoder knob.

Arc Length;Voltage;Adjustment Potentiometer

Adjustment of arc length, voltage, and other parameters using the knob.

PF65 Panel Overview

Detailed diagram and explanation of all PF65 panel elements and functions.

SF 54 Panel Overview for Fastmig Synergic

Overview of the SF 54 panel for Fastmig Synergic systems.

SF 53 Panel Overview for Fastmig Synergic

Overview of the SF 53 panel for Fastmig Synergic systems.

Basic Troubleshooting

Troubleshooting Common Issues

Common problems and their potential causes and checks during normal operation.

Disposal of the Machine

Maintenance

Daily Maintenance

Routine checks and cleaning tasks for daily operation and upkeep.

Service Shop Maintenance

Recommended maintenance tasks to be performed by authorized service workshops.

Ordering Numbers

Technical Data

Technical Specifications

Detailed technical specifications for the MXF 65 and MXF 67 welding machines.

Warranty Policy

Warranty Terms and Limitations

Conditions, limitations, and procedures for warranty claims and repairs.

Kemppi FastMig MXF65 Specifications

General

Power source type	Inverter
Duty cycle	60% at 65 A
Wire spool diameter, max.	300 mm
Degree of protection	IP23
Wire Diameter Range	0.8 - 1.6 mm
Filler wire diameters	0.8 - 1.6 mm
Operating temperature range	-20 °C to +40 °C
Wire Feed Speed Range	0.5-25 m/min