A7 MIG Welder

Engineered for your profit

The new standard in robotic MIG welding

Kemppi K7 Welding equipment Read more


A7 MIG Welder is the state-of-the-art solution for robotic arc welding, ideal for integration with any robot brand. It is a complete, perfectly balanced process package that includes a welding gun, wire feeder, power source, and cooling unit. The equipment is designed to meet the highest Kemppi standards, which guarantee reliable welding performance with no compromises. The Kemppi Wise software provides added value for customers by significantly improving welding speed, boosting production efficiency, and enabling the same equipment to be used for a variety of welding tasks. The system's modern, browser-based user interface allows easy access to the power source from a standard computer with a regular browser. This enables unprecedented savings in setup time and provides quality control benefits throughout the equipment’s life cycle.

Key benefits

UNIVERSAL

UNIVERSAL

Can be integrated with any robot brand

HIGHER WELDING SPEED

HIGHER WELDING SPEED

With the Kemppi WiseFusion process

EASY ACCESS TO POWER SOURCE

EASY ACCESS TO POWER SOURCE

With a computer and any web browser

Key applications

Robotics

Robotics

Benefits

  • Quick and easy integration with any robot brand with modern fieldbus hardware modules.
  • Access to the power source from an external computer via ethernet with a regular web browser. No extra programs needed. Enables radical savings in setup time, as well as quick and easy parameter configuration, system management, and monitoring throughout the equipment’s life cycle. 
  • Increased productivity and a short payback period thanks to the Wise software and a wide range of available functions. Wise processes are fine-tuned and pre-set to optimize productivity with welding speeds typically used in automated welding. The same equipment can be used for a wide variety of welding tasks and applications.
  • A comprehensive, completely balanced package from one supplier results in significant savings in time and effort when integrating the arc-welding package with the robot application.
  • Suitable for any industry using robotic welding for thin and thick mild steel, stainless steel, and aluminum components.
  • Enhanced arc ignition functionality (Touch Sense Ignition) delivers minimum spatter and stabilizes the arc immediately after ignition.
  • The robust wire feeding casing with integrated wire feeder controller electronics enables faster and more accurate control with better resistance to external interference.
  • An integrated gas-flow sensor in the wire feeder enables the shielding gas flow to be monitored closer to the arc by default – no need for additional sensors. 
  • Search voltage level for the system can be set up freely from web browser interface

See it in action

Videos

A7 MIG Welder & WiseFusion Welding Function

The automated way of life! Here you can see the A7 MIG Welder and its seam search function together with Kemppi WiseFusion, a welding function which provides 20-30 % higher welding speed and significantly lower heat input thus making welding more productive. And finally, the gun is cleaned with the gun cleaning station with wire cutting, gas nozzle reamer and anti-spatter spraying functions.

A7 MIG Welder - Touch Sense Ignition

Kemppi A7 MIG Welder’s Touch Sense Ignition function delivers minimum spatter and stabilizes the arc during ignition. This extends the life span of the contact tip and increases arc-on time.

A7 MIG Welder - Web Browser

With cooperation between a man, easy user interface, robot and power source you get awesome results. Here’s A7 MIG Welder and KUKA robot welding with the WiseFusion function.

Kemppi Reduced Gap Technology

Reducing the groove angle can add significantly to efficiency and productivity of welding of heavy metal structures.

What's in the system

Equipment

Kemppi A7 Power Source 450 product image

A7 Power Source 450

A7 MIG Welder 350 and 450 are welding power sources designed for demanding professio...

A7 MIG Welder 350 and 450 are welding power sources designed for demanding professional use in robotic welding systems. They are suitable for synergic pulsed MIG/MAG, synergic 1-MIG and basic MIG/MAG welding, as well as the modified WiseRoot+™ and WiseThin+™ processes. The robot interface unit on top of the power source handles the communication with a robot and contains all necessary connections to integrate with a welding cell.

Kemppi A7 Wire Feeder 25 product image

A7 Wire Feeder 25

The A7 Wire Feeder 25 is a durable and powerful two motor for 4-wheel feeding system ...

The A7 Wire Feeder 25 is a durable and powerful two motor for 4-wheel feeding system designed to work seamlesly with A7 MIG Welder power sources. A separate attachment bracket is required for mounting the wire feeder on robot.

Kemppi A7 Cooler product image

A7 Cooler

Cool X cooling unit for liquid-cooled setups is the ultimate choice providing 1 kW of...

Cool X cooling unit for liquid-cooled setups is the ultimate choice providing 1 kW of cooling power with 3 liters of cooling liquid. Equipped with a pressure gauge instead of a flow meter.

Kemppi A7 MIG Gun 500-w product image

A7 MIG Gun 500-w

Water-cooled robotic welding gun package offering exceptional precision. Choose a sui...

Water-cooled robotic welding gun package offering exceptional precision. Choose a suitable type from hollow wrist or non-hollow wrist versions to match your needs. This gun can be used with all common robot brands and can be equipped with shock sensor modules.

Kemppi A7 MIG Gun 500-g product image

A7 MIG Gun 500-g

Gas-cooled robotic welding gun package offering exceptional precision. Choose a suita...

Gas-cooled robotic welding gun package offering exceptional precision. Choose a suitable type from hollow wrist or non-hollow wrist versions to match your needs. This gun can be used with all common robot brands and can be equipped with shock sensor modules.

Kemppi Stand for power source product image

Stand for power source

For easy transport and keeping floor free under welder.

For easy transport and keeping floor free under welder.

Kemppi Wire Feed Roll Kit product image

Wire Feed Roll Kit

Kemppi Robot interface module product image

Robot interface module

Fieldbus commnucation between power source and robot controller is enabled with modul...

Fieldbus commnucation between power source and robot controller is enabled with modules. The protocol can be chosen based on customer preference.

Kemppi Interconnection cables for A7 product image

Interconnection cables for A7

The interconnection cable set contains several cables and hoses. It is used for deliv...

The interconnection cable set contains several cables and hoses. It is used for delivering the welding power, shielding gas, cooling liquid, and control signals from the welding power source to the wire feeder. Interconnection cable set is available in a zipper bag or a corrugated sleeve, and it is attached to the robot arm with brackets.

Kemppi Interconnection cable brackets product image

Interconnection cable brackets

Kemppi Earth return cable 70 product image

Earth return cable 70

Kemppi Wire conduit for wire spools product image

Wire conduit for wire spools

High quality wire conduit delivers the filler wire smoothly from wire spool to wire f...

High quality wire conduit delivers the filler wire smoothly from wire spool to wire feeder. Male connectors on both ends fit to Kemppi feeder and Kemppi wire spool support. Order codes does not include female snap connector for wire spool holder or wire drum. It must be ordered separately. In case of stainless steel or aluminium, a separate chili liner is also required.

Kemppi Snap connector for drum or spool holder (female) product image

Snap connector for drum or spool holder (female)

Female connector for the wire drum or spool holder.

Female connector for the wire drum or spool holder.

Kemppi Wire spool holder product image

Wire spool holder

Suitable for standard 15 kg wire coil. NOTE: Female connector for wire conduit not in...

Suitable for standard 15 kg wire coil. NOTE: Female connector for wire conduit not included. Must be ordered separately.

Kemppi Protective cover for wire spool product image

Protective cover for wire spool

Plastic cover for wire spool holder.

Plastic cover for wire spool holder.

Kemppi Floor stand for wire spool holder product image

Floor stand for wire spool holder

Floor stand for wire spool holder.

Floor stand for wire spool holder.

Kemppi Wire feeder mounting brackets for A7 product image

Wire feeder mounting brackets for A7

Brackets for mounting the wire feeder on the robot’s 3rd axis. The design is robot mo...

Brackets for mounting the wire feeder on the robot’s 3rd axis. The design is robot model specific. Order code includes metal plates, insulation rings and screws. Screws for robot’s 3rd axis are not included.

Kemppi Welding gun cleaning station product image

Welding gun cleaning station

Regular mechanical cleaning of the internal surfaces of the gas nozzle provides stead...

Regular mechanical cleaning of the internal surfaces of the gas nozzle provides steady and good shielding gas flow for welding. Helps to avoid spatter to form electrical connection bridges between contact tip and the gas nozzle.

Software


WiseFusion

A welding function that ensures consistent weld quality in all positions by automatic...

A welding function that ensures consistent weld quality in all positions by automatically regulating arc length. Creates and maintains an optimal short-circuit characteristic in pulsed MIG/MAG and spray-arc welding.

Kemppi Welding Program product image

Welding Program

For different production needs.Purchase either convenient programs packs or singl...

For different production needs.

Purchase either convenient programs packs or single programs, according to your need.

Alternative

Equipment and software

Kemppi Cool X Cooling unit product image

Cool X Cooling unit

Cool X cooling unit for liquid-cooled setups is the ultimate choice providing 1 kW of...

Cool X cooling unit for liquid-cooled setups is the ultimate choice providing 1 kW of cooling power with 3 liters of cooling liquid.

Kemppi A7 Power Source 350 product image

A7 Power Source 350

A7 MIG Welder 350 is a welding power source designed for demanding professional use i...

A7 MIG Welder 350 is a welding power source designed for demanding professional use in robotic welding systems. It is suitable for synergic pulsed MIG/MAG, synergic 1-MIG and basic MIG/MAG welding, as well as the modified WiseRoot+™ and WiseThin+™ processes. The robot interface unit on top of the power source handles the communication with a robot and contains all necessary connections to integrate with a welding cell.

Kemppi Wire conduit for wire drums product image

Wire conduit for wire drums

Alternative solution for wire conduit when distance between wire feeeder and wire dru...

Alternative solution for wire conduit when distance between wire feeeder and wire drum is greater than 5 meters. NOTE: When ordering W005195 with the desired length, you also need snap connectors: two male (W005197) and one female (W005189).

Kemppi Snap connector for wire conduit (male) product image

Snap connector for wire conduit (male)

Male connector for wire conduit, two pieces needed per conduit.

Male connector for wire conduit, two pieces needed per conduit.

Kemppi I/O extention for robot interface product image

I/O extention for robot interface

Enables to control external devices via fieldbus.

Enables to control external devices via fieldbus.

Kemppi Mounting kit A7 dual feeder product image

Mounting kit A7 dual feeder

For non-hollow wrist robot models and applications where welding gun exchange unit is...

For non-hollow wrist robot models and applications where welding gun exchange unit is used this set enables use of two wire feeders and one power source combination. Switching between two wire feeders can be done from robot controller. The kit includes a wire feeder switching card, a flat band cable, and a harness with connectors for the wire feeder and for the mother board of the robot interface unit.

Extras and accessories

Optional extras

Technical specifications

Kemppi Customized Welding Program product image

Customized Welding Program

Order custom-made welding programs for FastMig.For order information contact Kem...

Order custom-made welding programs for FastMig.

For order information contact Kemppi sales.

Kemppi WiseThin+-A product image

WiseThin+-A

Kemppi Wise welding function for automated welding.

Kemppi Wise welding function for automated welding.

Kemppi WiseRoot+-A product image

WiseRoot+-A

Kemppi Wise welding function for automated welding.

Kemppi Wise welding function for automated welding.

Kemppi WisePenetration-A product image

WisePenetration-A

Kemppi Wise welding function for automated welding.

Kemppi Wise welding function for automated welding.

Technical specifications

A7 Power Source 350A7 Power Source 450
Product code62013506201450
Connection voltage 1~ 50/60 HzN/AN/A
Connection voltage 3~ 50/60 Hz400 V, -15 %...+20 %400 V, -15 %...+20 %
Fuse (delayed)25 A35 A
Minimum generator power35 kVA35 kVA
Welding range20 A / 12 V - 350 A / 46 V20 A / 12 V - 450 A / 46 V
Output 60% ED350 A450 A
Output 100% ED330 A350 A
Mains connection cable4G6 (5 m)4G6 (5 m)
Supply current (maximum)23 A32 A
Supply current (effective)21 A25 A
Idle power25 W25 W
Power factor at max. current0.850.88
No-load voltage (peak)U0 = 80 V - 98 VU0 = 80 V - 98 V
Open circuit voltage (average)85 V -103 V85 V -103 V
Efficiency (100 % duty cycle)87 %87 %
Minimum short circuit power Ssc of supply network5.5 MVA5.5 MVA
Max apparent power22 kVA22 kVA
Power supply for cooling unit24 V DC / 50 VA24 V DC / 50 VA
Power supply for auxiliary unit50 V DC / 100 W50 V DC / 100 W
Operating temperature range-20 ... +40 °C-20 ... +40 °C
External dimensions LxWxH610 × 240 × 520 mm610 × 240 × 520 mm
Weight (no accessories)40.2 kg40.2 kg
Degree of protectionIP23SIP23S
Weight (with connection cable)42.6 kg42.6 kg
EMC classAA
Storage temperature range-40 ... +60 °C-40 ... +60 °C
Temperature class155 (F)155 (F)
A7 Wire Feeder 25A7 Wire Feeder 25 -PP
Product code62035106203502
Wire feed mechanism4-roll, two motors4-roll, two motors
Wire feed speed adjustment0.5 – 25 m/min0.5 – 25 m/min
Gun connectionEuroPP
Filler wire sizes (Fe solid)0.8 – 1.6 mm0.8 – 1.6 mm
Filler wire sizes (Fe cored)1.0 – 1.6 mm1.0 – 1.6 mm
Filler wire sizes (Ss)0.8 – 1.6 mm0.8 – 1.6 mm
Filler wire sizes (Al)1.0 – 2.4 mm1.0 – 2.4 mm
Filler wire sizes (CuSi)0.8 – 1.2 mm0.8 – 1.2 mm
Operating voltage (safety voltage)50 V DC50 V DC
Operating temperature range-20 ... +40 °C-20 ... +40 °C
External dimensions LxWxH380 × 250 × 170 mm380 × 250 × 170 mm
Weight (no accessories)7.8 kg7.8 kg
Degree of protectionIP21SIP21S
EMC classAA
Storage temperature range-40 ... +60 °C-40 ... +60 °C
A7 Cooler
Product code6068220
Cooling liquid - 10 liter can - SP9810765
Operating voltage (safety voltage)400 V -15 …+20 %
Maximum pressure0.4 Mpa
External dimensions LxWxH570 x 230 x 280 mm
Weight (no accessories)11 kg
Degree of protectionIP23S
Tank volume~3 l
EMC classA
Cooling power1 kW
Storage temperature range-40 …+60 °C
Operating temperature-20 …+40 °C
Flow sensor type[l/min]
Welding gun cleaning station
Product codeSP600674
Equipped with wire cutter, gas nozzle inside reamer and anti-spatter spray unit; order code includes reamer setup for both gas and water cooled nozzles.
Operating voltage10 to 30 V DC
Weight22 kg
Nominal pressure6 bar 88 psi
Nominal flowApprox. 500 l/min
Operating pressure6 – 8 bar / 88 - 116 psi
Nominal rotational speed800 rpm
Max. Wire size1.6mm (by 6 bar 7 88 psi air pressure)
Ambient temperature+5° to +50°C
ProtectionIP 21
5/2 way valves
Rated voltage24 V DC
Power consumption4.5 W (EACU)
Permitted residual rippleVpp < 10%
Continuous currentMax. 200 mA
Current consumptionapprox. 4 mA (24 V)
Voltage dropapprox 1.2 V (200 mA)

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Technical specifications