LogoPMW 350
  • en
    • Contact
    • Imprint
    • Terms and Conditions
    • Data privacy statement
    • Cookie Policy
    • 003-24032023
    • General
      • Machine concept
      • Areas of utilisation
      • Options
    • Replace wearing parts
      • Changing wearing parts, adjusting tungsten electrode
    • Connections
      • General remarks
      • Connections
    • Technical data
      • Technical data
      • Dimensions

    PMW 350

    Machine concept
    Areas of utilisation
    Changing wearing parts
    Connections
    Technical data
    Spare parts

    General

    Machine concept

    Plasma machine welding torch PMW 350 with optional portable gas nozzle

    The plasma machine welding torch PMW 350 can be operated right next to the power source. Maximum electrical load is 150 A and maximum coolant return temperature is 40 °C. External cooling is required if the electrical load is higher. The water flow temperature should never be higher than 20°C.
    An open cooling system ensures optimum cooling of the welding nozzle.

    Machine concept

    Plasma machine welding torch PMW 350 with optional portable gas nozzle

    The plasma machine welding torch PMW 350 can be operated right next to the power source. Maximum electrical load is 150 A and maximum coolant return temperature is 40 °C. External cooling is required if the electrical load is higher. The water flow temperature should never be higher than 20°C.
    An open cooling system ensures optimum cooling of the welding nozzle.

    Areas of utilisation

    Due to its slimline shape, the PMW 350 is ideal for welding pipe flange connections.
    Other applications include:
    • Lengthwise and circular weld seams on pipes and containers for reactors
    • Weld seams on gas cylinders
    • Welding in the chemical and food industries, and in conjunction with tape welding systems.

    Options

    (1) Portable gas nozzle
    (2) Torch holder FSU 5
    (3) Wirefeeding holder
    (4) Cold wire feeder

    Two gas nozzles, each of a different size, are provided for circular weld seams on small diameter pipes.

    The portable gas nozzle is suited to welding lengthwise seams and large diameter pipe joints. Its special design allows it to produce a flow of shielding gas that ensures excellent protection of the weld pool from air. If using the portable gas nozzle spacer (7) and insulator (8), replace the portable gas nozzle with the insulator.

    Using a centring piece and a ceramic sleeve between the nozzle and electrode ensures that the plasma jet is well centred.

    Replace wearing parts

    Changing wearing parts, adjusting tungsten electrode

    IMPORTANT! Switch off the machine before carrying out any work on the torch.
    The gas nozzles (1) and (20) can be plugged in.

    Change welding nozzle (2):
    1Hold the front part of the torch body downwards so that any escaping coolant cannot get back into the torch body and its insulating parts.
    2Unscrew nozzle cap (5)
    3Change plug-in welding nozzle (2) and O-ring (6).
    Change tungsten electrode:
    1Release welding tongs (9) using adjusting gauge
    2Remove tungsten electrode (3)
    3Push new tungsten electrode (3) and welding tongs (9) into adjusting gauge as far as they will go
    4Using adjusting gauge, screw in welding tongs (9) with tungsten electrode (3).
    The adjusting gauge is preadjusted using a screw. Adjust the screw to obtain a softer or harder arc.
    The adjusting gauge can also be used to adjust the welding nozzle (2): If the adjusting gauge is lengthways on to the weld seam, both holes in the welding nozzle will be parallel to the weld seam.

    (1)

    Water-cooled plasma gas nozzle

    (10)

    O-ring

    (2)

    Welding nozzle

    (11)

    O-ring

    (3)

    Tungsten electrode

    (12)

    Outer pipe

    (4)

    Torch body

    (13)

    Screw (x2)

    (5)

    Nozzle cap

    (14)

    Centring piece

    (6)

    O-ring

    (15)

    Insulating tube

    (7)

    Spacer

    (16)

    Ceramic sleeve

    (8)

    Insulator

    (20)

    Portable gas nozzle

    (9)

    Welding tongs

     

     

    Changing wearing parts, adjusting tungsten electrode

    IMPORTANT! Switch off the machine before carrying out any work on the torch.
    The gas nozzles (1) and (20) can be plugged in.

    Change welding nozzle (2):
    1Hold the front part of the torch body downwards so that any escaping coolant cannot get back into the torch body and its insulating parts.
    2Unscrew nozzle cap (5)
    3Change plug-in welding nozzle (2) and O-ring (6).
    Change tungsten electrode:
    1Release welding tongs (9) using adjusting gauge
    2Remove tungsten electrode (3)
    3Push new tungsten electrode (3) and welding tongs (9) into adjusting gauge as far as they will go
    4Using adjusting gauge, screw in welding tongs (9) with tungsten electrode (3).
    The adjusting gauge is preadjusted using a screw. Adjust the screw to obtain a softer or harder arc.
    The adjusting gauge can also be used to adjust the welding nozzle (2): If the adjusting gauge is lengthways on to the weld seam, both holes in the welding nozzle will be parallel to the weld seam.

    (1)

    Water-cooled plasma gas nozzle

    (10)

    O-ring

    (2)

    Welding nozzle

    (11)

    O-ring

    (3)

    Tungsten electrode

    (12)

    Outer pipe

    (4)

    Torch body

    (13)

    Screw (x2)

    (5)

    Nozzle cap

    (14)

    Centring piece

    (6)

    O-ring

    (15)

    Insulating tube

    (7)

    Spacer

    (16)

    Ceramic sleeve

    (8)

    Insulator

    (20)

    Portable gas nozzle

    (9)

    Welding tongs

     

     

    Connections

    General remarks

    The plasma machine welding torch PMW 350 is fitted with a Fronius F++ / FG connection as standard.

    General remarks

    The plasma machine welding torch PMW 350 is fitted with a Fronius F++ / FG connection as standard.

    Connections

    (1)

    Pilot arc earth

    (2)

    Water

    (3)

    Shielding gas/current

    (4)

    Plasma gas/pilot arc

    (5)

    Robot cut-out box

    Technical data

    Technical data

    Max. current at 100 % d.c. (DC-)
     Welding nozzle 2.0 mm 100 A
     Welding nozzle 2.8 mm 180 A
     Welding nozzle 3.2 mm 240 A
     Welding nozzle 3.5 mm 280 A
     Welding nozzle 4.0 mm 350 A


    100 A
    180 A
    240 A
    280 A
    350 A

    Pilot arc current

    20 A

    Cooling system

    Liquid cooling

    Coolant

    Original Fronius coolant 

    Min. flow rate at 2 bar

    2,4 l/min

    Max. coolant temperature when it enters torch

    35 °C

    Shielding gas

    Argon, argon-hydrogen or argon-helium

    Shielding gas flow rate

    approx. 10-25 l/min

    Plasma gas

    Argon

    Plasma gas flow rate

    approx. 1-4 l/min

    Length of hosepack

    4 m (also made-to-measure)

    Technical data

    Max. current at 100 % d.c. (DC-)
     Welding nozzle 2.0 mm 100 A
     Welding nozzle 2.8 mm 180 A
     Welding nozzle 3.2 mm 240 A
     Welding nozzle 3.5 mm 280 A
     Welding nozzle 4.0 mm 350 A


    100 A
    180 A
    240 A
    280 A
    350 A

    Pilot arc current

    20 A

    Cooling system

    Liquid cooling

    Coolant

    Original Fronius coolant 

    Min. flow rate at 2 bar

    2,4 l/min

    Max. coolant temperature when it enters torch

    35 °C

    Shielding gas

    Argon, argon-hydrogen or argon-helium

    Shielding gas flow rate

    approx. 10-25 l/min

    Plasma gas

    Argon

    Plasma gas flow rate

    approx. 1-4 l/min

    Length of hosepack

    4 m (also made-to-measure)

    Dimensions

    Gas nozzle dimensions
    Portable gas nozzle dimensions