Master MLS Downloads
Manuals
Master MLS 2500, 3500 PDF Manual
Master MLS 2500/3500 PDF Manual
Technical specifications
Master MLS 3500 Download
Master MLS™ 2500 Download
Master MLS™ 3500 VRD Download
Declarations of conformity
Master MLS 2500, 3500 Download
Master MLS 2500, 3500 Download
Brochures and leaflets
Master MLS 3500 Download
FAQ
Where can I get service and/or consumable parts for Kemppi equipment?

You can get service and consumables from your nearest Kemppi representative. Please see our representatives near you.

How can I find the closest Kemppi service workshop near me?

You can find the closest repair workshop from our map search.

What kind of a warranty does Kemppi equipment have?

Kemppi welding equipment is designed and tested for professional industrial environments. As a guarantee of high quality, we offer our customers a global warranty up to three years. 

For full details, see Kemppi Warranty.

What does the different error codes mean?

All the error codes are explained in the user manual in detail.

How can I update the software on machine?

Please contact the nearest authorized Kemppi service & repair workshop.

What is the recommended mains fuse size and type?

Technical specifications in the user manual has the recommended model and size.

What are the part numbers and prices for spare parts?

You can find our spare and wear part numbers and prices from the nearest Kemppi representative.

How can I find the correct consumable kit for my MIG/MAG machine?

You can use our consumable kit finder tool to find the correct one.

Mains and generator use, what do I need to do on Master MLS 2500 or 3500, if anything?

Mains/Generator use can be selected with the jumper X19 behind the panel (jumper X19 must be open for generator use). Restrictions on generator type and power may apply in generator use. Fault free operation of a three-phase machine also requires a sufficiently highpower generator. The power recommendation is more than 16 kVA.

Premium MMA welding quality

Master MLS machines offer the best choice in MMA welding refinement. Combine either the 250 or 350 amp power source with the basic MEL or advanced MEX control panels for outstanding welding performance. High 40 % duty cycle ensures you have the work capacity to get the job done; whilst the compact and lightweight design makes work around site easy.

Control panel options MEL and MEX include all of the necessary parameter functions for high quality MMA welding. MEL panel includes process selection for MMA or basic TIG welding, large, clear meter display, hot start and arc force control, plus remote control function. MEX panel offers a more diverse selection of parameter controls including: Electronic electrode type selector, arc gouging, or broken arc welding technique and memory channel function. High quality TouchArc function provides a credible DC TIG welding facility.

Benefits

  • Specific design for MMA welding
  • Compact and portable
  • Control panel choice for varied applications
  • Designed for all electrode types
  • MMA and TIG welding function
  • Suitable for use with power generators
Download brochure
Excellent arc control

Excellent arc control

Due to intelligent features

Control panel options

Control panel options

Allow customization to your specific needs

Product options

Master MLS 3500
Master MLS 3500 Master MLS™ 3500 is an efficient 3-phase welding machine equipped with versatile functions for MMA and DC LIFT TIG welding. The compact structure and efficient cooling system make it suitable for use on work sites and extreme industrial conditions. This model is a 350 A version. View more
Technical specifications
Product code
Master MLS™ 3500 - 6104350
Master MLS™ 3500 VRD - 6104350C1
Master MLS™ 2500 - 6104250
Connection voltage 3~ 50/60 Hz
400V -15...+20 %
Fuse (delayed)
16 A
Output (TIG) 40% ED
400 A/26.0 V
Output (MMA) 60% ED
285 A/31.4 V
Output (MMA) 40% ED
350 A/34.0 V
Output (MMA) 100% ED
220 A/28.8 V
Open circuit voltage
80 V
Stick electrode sizes
1.5...6.0 mm
Welding range (MMA)
10 A/20.5 V...350 A/34.0 V
Welding range (TIG)
5 A/10.0 V...400 A/26.0 V
Operating temperature range
-20…+40 °C
External dimensions LxWxH
500 × 180 × 390 mm
Weight (no accessories)
21 kg
Degree of protection
IP23S
Master MLS™ 2500
Master MLS™ 2500 Master MLS™ 2500 is an efficient 3-phase welding machine equipped with versatile functions for MMA and DC LIFT TIG welding. The compact structure and efficient cooling system make it suitable for use on work sites and extreme industrial conditions. This model is a 250 A version. View more
Technical specifications
Product code
6104250
Connection voltage 3~ 50/60 Hz
400V (-15...+20%)
Fuse (delayed)
10 A
Output (TIG) 40% ED
300 A/22.0 V
Output (MMA) 60% ED
205 A/28.2 V
Output (MMA) 40% ED
250 A/30.0 V
Output (MMA) 100% ED
160 A/26.4 V
Open circuit voltage
80 V
Stick electrode sizes
1.5...5.0 mm
Welding range (MMA)
10 A/20.5 V...250 A/30.0 V
Welding range (TIG)
5 A/10.0 V...300 A/22.0 V
Operating temperature range
-20…+40 °C
External dimensions LxWxH
500 × 180 × 390 mm
Weight (no accessories)
20 kg
Degree of protection
IP23S
Master MLS™ 3500 VRD
Master MLS™ 3500 VRD Master MLS 3500 VRD is equipped with Voltage Reduction Device, meeting specific market needs. The compact structure and efficient cooling system make it suitable for use on work sites and extreme industrial conditions. This model is a 350 A version. View more
Technical specifications
Product code
6104350C1
Product code
6104350
Connection voltage 3~ 50/60 Hz
400V -15...+20 %
Fuse (delayed)
16 A
Output (TIG) 40% ED
400 A/26.0 V
Output (MMA) 60% ED
285 A/31.4 V
Output (MMA) 40% ED
350 A/34.0 V
Output (MMA) 100% ED
220 A/28.8 V
Open circuit voltage
80 V
Stick electrode sizes
1.5...6.0 mm
Welding range (MMA)
10 A/20.5 V...350 A/34.0 V
Welding range (TIG)
5 A/10.0 V...400 A/26.0 V
Operating temperature range
-20…+40 °C
External dimensions LxWxH
500 × 180 × 390 mm
Weight (no accessories)
21 kg
Degree of protection
IP23S

Accessories

All Remotes Cables Transport unit Other
Kemppi Welding cable 5 m 35 mm² product image

Welding cable 5 m 35 mm²

Product code: 6184301

Kemppi Welding cable 5 m 50 mm² product image

Welding cable 5 m 50 mm²

Product code: 6184501

Kemppi Earth return cable 5 m, 35 mm² product image

Earth return cable 5 m, 35 mm²

Product code: 6184311

Kemppi Earth return cable 5 m, 50 mm² product image

Earth return cable 5 m, 50 mm²

Product code: 6184511

Kemppi Electric plug 16 A product image

Electric plug 16 A

Product code: 9770812

Kemppi Electric plug 32 A product image

Electric plug 32 A

Product code: 9770813

Kemppi Electrode holders - electrode holders product image

Electrode holders - electrode holders

Product code: Kemppi 300 – 9871021, Kemppi 400 – 9871031, Urania 5 – 9871041, Urania 6 – 9871051, Myking 200 – 9871060, Myking 450 – 9871070, Myking 600 – 9871080

Kemppi Remote control R10 product image

Remote control R10

Suitable for use with Kemppi MIG, TIG, and stick (MMA) welding equipment. Available i...

Suitable for use with Kemppi MIG, TIG, and stick (MMA) welding equipment. Available in 5 m and 10 m.

Increase welding quality, work efficiency, comfort, and safety with appropriate, easy-to-use Kemppi remote controls.

Product code: R10, 5 m - 6185409 R10, 10 m - 618540901

Kemppi Remote control R11T product image

Remote control R11T

Suitable for use with Kemppi MasterTig MLS, Master MLS, and Master S welding equipmen...

Suitable for use with Kemppi MasterTig MLS, Master MLS, and Master S welding equipment.

Increase welding quality, work efficiency, comfort, and safety with appropriate, easy-to-use Kemppi remote controls.

Product code: 6185442

Kemppi T110 product image

T110

Suitable for Master MLS 2500 & 3500, MasterTig MLS 2000, MasterTig MLS 3000 & 4000, M...

Suitable for Master MLS 2500 & 3500, MasterTig MLS 2000, MasterTig MLS 3000 & 4000, MasterTig MLS 2300, 3000, 3003ACDC (no water cooling unit), and MasterTig LT 250. T110 is a 2-wheel transport unit that is recommended for smaller gas bottle sizes.

Product code: 6185251

Kemppi T130 product image

T130

Suitable for Master MLS 2500 & 3500, MasterTig MLS 2000, MasterTig MLS 3000 & 4000, M...

Suitable for Master MLS 2500 & 3500, MasterTig MLS 2000, MasterTig MLS 3000 & 4000, MasterTig MLS 3000, 4000 & MasterCool 10, MasterTig MLS 2300, 3000, 3003ACDC, and MasterTig LT 250. The T130 is a 2-wheel transport unit suitable for mid-size and large gas bottle sizes.

Product code: 6185222

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