P 5500
Energy-efficient top performance around the clock.
  • Operation concepts: Basic, XT
  • 25 - 550 A
  • ED 60% at 40°C: 500 A
  • Weldable wires steel: 0.6 – 2.4 mm Ø
P 5500

EN1090-compliant package.

Save some time- and cost-intensive individual tests of your welding results! The enclosed Lorch WPS booklet contains independently certified welding instructions of all relevant standard welding procedures for easy EN1090-compliant welding.

Energy efficiency at full power.

The Lorch P 5500 combines top performance with efficient inverter technology and a stand-by function. This reduces costs while achieving perfect welding results.

Extra performance by MIG-MAG Speed processes.

The P 5500 has several Lorch Speed processes that create the most diverse areas of application. The included processes, as well as the optional upgrades will let you weld more quickly and at higher quality.

Operating modes can be optimised individually.

Quatromatic technology avoids cold laps at the welding start and ensures optimal end crater filling. Save up to three individual parameter settings and call them up again easily in 4-stroke operation via the torch button.

Country-specific product variants.

Country-specific product variants are available for this Lorch welding unit. These may differ in the mains supply, the mains plug or other product features required for the country. You want to know more? Contact your local Lorch partner.

Technical data

MIG-MAG welding
Welding range 3~ 400 V: [A] 25 - 550
Voltage range: [V] 15.2 - 41.5
Weldable Wires Steel: [Ø in mm] 0.6 - 1.6
Weldable wires aluminum: [Ø in mm] 1 - 2.4
Weldable wires CuSi: [Ø in mm] 0.8 - 1.2
Voltage setting
Voltage setting: Continuo
MIG-MAG duty cycle
Duty cycle 100% (40°c): [A] 400
Duty cycle 60% (40°c): [A] 500
Duty cycle at max. current (40°c): [%] 30
Electrode welding
Weldable electrodes: [Ø in mm] 1 - 8
Process-independent data
Open circuit voltage: [V] 72 - 96
Feed speed standard: [m/min] 0.1 - 25
Mains 400 V
Mains voltage 3~ (50/60 Hz): [V] 400
Mains fuse 3~ (50/60 Hz): [A] 35
Positive mains tolerance 3~ (50/60 Hz): [%] 15
Negative mains tolerance 3~ (50/60 Hz): [%] 15
Mains plug
Mains plug: CEE 32
Standards and approvals
Protection class: IP23S
Insulation class: F
Norm/Standard: EN 60974-01
Designation/Certification: CE, S
Cooling type
Cooling type: Gas-cooled , Water-cooled
Standard cooling capacity (l/min): [kW] 1.06
Tank capacity: [l] 4.3
Dimensions length x width x height
Dimensions (LxWxH) [mm] 1,116 × 463 × 812
Dimensions wire feed case (LxWxH) [mm] 639 × 281 × 498
Weight: [kg] 107.3
Weight wire feeder case: [kg] 20.2
Weight, water cooling (filled): [kg] 14.7


  • “3 steps and weld” operating concept
  • Digital Volt-Amperage-display
  • Stepless current adjustment


  • “3 steps and weld” operating concept
  • Digital Volt-Amperage-display
  • Stepless current adjustment
  • Graphic user guidance in the LCD graphic display
  • Simple process and welding programme selection
  • Dynamic control (at Synergic, SpeedArcXT)
  • Tiptronic job memory for 100 welding tasks


You would like to learn more? Technical data as well as details on application and equipment can be found here:

Always the best advice: close, personal and honest.

You are interested in a Lorch welding machine but you are not sure which model is the right one for you or you have other questions? Use our Partner Finder to easily find a competent contact person near you and get personal advice.