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Small Portable Spot Welding Guns

TECNA offers top-of-the-line manual or pneumatic portable spot welding guns with integrated transformers and digital weld controls. T. J. Snow stocks TECNA's hand held spot welders, portable spot welders suspended by a spring balancer and pedestal-mounted spot welders.

TECNA Portable Spot Welding Guns are a great replacement for discontinued Miller Spot Welders.
TECNA's small, portable spot welding guns are available in 2-6 kVA.

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Pedestal-Mounted Option

Small Manual Portable Spot Welding Guns

Miller Electric has discontinued their line of spot welding guns. T. J. Snow has found TECNA® to be a great replacement. Please see chart at the bottom of the page for discontinued Miller Electric Weld Gun Comparisons.

Model #7900

  • 2 kVA
  • 220V / 60 Hz / Single Phase
  • Air-Cooled
  • Manual Operation
  • 7,200 short circuit secondary amperes
  • 269.8 lbf max electrode force (with 4.92″ arms)
  • Other arm lengths and accessories available. (Contact us for more specific information.)
  • Ideal for auto body repair, maintenance shops or other light industrial uses
  • Compensation circuit starts the timer only when there is a proper passage of current, which enables to perform on oxidized sheets, on surfaces with paint residues or on black sheets
  • Synchronous built-in electronic timer with SCR from 2 to 65 cycles
  • Pulsation Feature and Kit Options are available
  • Balancers are available for ease of handling. Contact a sales rep for assistance with sizing

Model #7902

  • 2.5 kVA
  • 220V / 60 Hz / Single Phase
  • Air-Cooled
  • Manual Operation
  • 8,200 short circuit secondary amperes
  • 269.8 lbf max electrode force (with 4.92″ arms)
  • Other arm lengths and accessories available. (Contact us for more specific information.)
  • Ideal for auto body repair, maintenance shops or other light industrial uses
  • Compensation circuit starts the timer only when there is a proper passage of current, which enables to perform on oxidized sheets, on surfaces with paint residues or on black sheets
  • Synchronous built-in electronic timer with SCR from 2 to 65 cycles
  • Current control with phase shift adjustment to carry out difficult welds, on very thin thickness, on rods with reduced diameter, on stainless steel sheet and similar.
  • Pulsation Feature and Kit Options are available
  • Balancers are available for ease of handling. Contact a sales rep for assistance with sizing

Model #7903

  • 6 kVA
  • 220V / 60 Hz / Single Phase
  • Water-Cooled
  • Manual Operation
  • 8,200 short circuit secondary amperes
  • 269.8 lbf max electrode force (with 4.92″ arms)
  • Other arm lengths and accessories available. (Contact us for more specific information.)
  • Versatile portable spot welder for auto body repair shops and maintenance shops
  • Compensation circuit starts the timer only when there is a proper passage of current, which enables to perform on oxidized sheets, on surfaces with paint residues or on black sheets
  • Synchronous built-in electronic timer with SCR from 2 to 65 cycles
  • Current control with phase shift adjustment to carry out difficult welds, on very thin thickness, on rods with reduced diameter, on stainless steel sheet and similar.
  • Pulsation Feature and Kit Options are available
  • Balancers are available for ease of handling. Contact a sales rep for assistance with sizing

Small Pneumatic Portable Spot Welding Guns

Model #7911

  • 2.5 kVA
  • 220V / 60 Hz / Single Phase
  • Air-Cooled
  • Pneumatic Operation
  • 281 lbf max electrode force (with 4.92″ arms)
  • Other arm lengths and accessories available. (Contact us for more specific information.)
  • Light and proved spot gun for car body repair and maintenance / preassembly works in industry
  • Compensation circuit starts the timer only when there is a proper passage of current, which enables to perform on oxidized sheets, on surfaces with paint residues or on black sheets
  • Synchronous built-in electronic timer with SCR from 2 to 65 cycles
  • Additional arm couplings to provide larger opening between arms
  • A built-in differential pressure switch operates the timer when the electrode force is correct
  • Pulsation Feature and Kit Options are available
  • Balancers are available for ease of handling. Contact a sales rep for assistance with sizing
portable welding gun

Model #7913

  • 6 kVA
  • 220V / 60 Hz / Single Phase
  • Water-Cooled
  • Pneumatic Operation
  • 269.8 lbf max electrode force (with 5.91″ arms)
  • Other arm lengths and accessories available. (Contact us for more specific information.)
  • Light and proved spot gun for car body repair and maintenance / preassembly works in industry
  • Compensation circuit starts the timer only when there is a proper passage of current, which enables to perform on oxidized sheets, on surfaces with paint residues or on black sheets
  • Current control with phase-shift adjustment to carry out difficult welds, on very think thickness, on rods with reduced diameter, on stainless steel sheets and similar
  • Synchronous built-in electronic timer with SCR from 2 to 65 cycles
  • Additional arm couplings to provide larger opening between arms
  • A built-in differential pressure switch operates the timer when the electrode force is correct
  • Pulsation Feature and Kit Options are available
  • Balancers are available for ease of handling. Contact a sales rep for assistance with sizing
portable spot welding gun

Model #7915

  • 6 kVA
  • 220V / 60 Hz / Single Phase
  • Water-Cooled
  • Pneumatic Operation
  • 269.8 lbf max electrode force (with 5.9″ arms)
  • 8,200 short circuit secondary amperes
  • Other arm lengths and accessories available. (Contact us for more specific information.)
  • Versatile portable spot welder for auto body repair shops and maintenance shops
  • Compensation circuit starts the timer only when there is a proper passage of current, which enables to perform on oxidized sheets, on surfaces with paint residues or on black sheets
  • Current control with phase-shift adjustment to carry out difficult welds, on very think thickness, on rods with reduced diameter, on stainless steel sheets and similar
  • Synchronous built-in electronic timer with SCR from 2 to 65 cycles
  • Additional arm couplings to provide larger opening between arms
  • A built-in differential pressure switch operates the timer when the electrode force is correct
  • Pulsation Feature and Kit Options are available
  • Balancers are available for ease of handling. Contact a sales rep for assistance with sizing
ITEM 790079027903791179137915
CoolingAirAirWaterAirWaterWater
OperationManualManualManualPneumaticPneumaticPneumatic
Supply voltage 60Hz *V220 V
Rated @ 50% duty cyclekVA22.562.566
Maximum welding powerkVA131616161616
Short circuit current kA 7.2 8.2 8.2 8.2 8.2 8.2 
with arms L=in (mm)4.92 (125)4.92 (125)4.92 (125)4.92 (125)5.9 (150)5.9 (150)
Thermal current 100%A610700170070017001700
No load secondary voltageV2.32.52.52.52.5>2.5
Insulation classFFFFFF
Service @ 220vAmps161616161616
Standard arms throat depth Lin (mm)4.92 (125)4.92 (125)4.92 (125)4.92 (125)
Max. electrode force lbf 269.8 269.8 269.8 281 269.8 (269.8
with arms L=in (mm)4.92 (125)4.92 (125)4.92 (125)4.92 (125)5.9 (150)5.9 (150)
Arms gapin (mm)3.78 (96)3.7 (94)3.7 (94)3.78 (96)3.7 (94)3.7 (94)
Max. electrodes stroke in (mm)2.17 (55)2.17 (55)2.75 (70)2.17 (55)2.17 (55)2.75 (70)
with arms L=in (mm)4.92 (125)4.92 (125)5.9 (150)4.92 (125)1555.9 (150)
Water cooling requiredl/min2.53.73.72.53.73.7
Water max. pressurepsi2.536
Noise produceddB(A)< 70< 70< 70626364
Level of vibrationsm/s2< 2.5< 2.5< 2.5< 2.5< 2.5< 2.5
Welding parameters
welding timecycles141420466
welding currentkA5564.16.16.1
 working rating in welds/min 226111515
Mains cable length ft (m)12.47 (3.8)12.47 (3.8)12.47 (3.8)12.47 (3.8)12.47 (3.8)12.47 (3.8)
Net weight with arms 125 mmlbs (kg)23.1 (10.5)24.25 (11)23.1 (10.5)24.25 (11)
Net weight with arms 150 mmlbs (kg)26.5 (12)26.5 (12)
Net weight with arms 500 mmlbs (kg)28.7 (13)29.8 (13.5)30 (13.6)28.7 (13)29.8 (13.5)30 (13.6)

Miller Electric Spot Welding Gun Equivalents

Miller Electric no longer produces their line of portable spot welder guns. The experts at T. J. Snow Company have found TECNA® small portable spot weld guns to be a high quality, easy to use, reliable replacement moving forward. See the comparison chart below and contact us with any questions.

 

Miller Spot Weld Gun Model NumberSupply VoltageOutput @ 50% Duty CycleCoolingMFR #TECNA Model Equivalent
MSW-41110 1.5Air9003717900
MSW-41T1101.5Air9013457900
LMSW-522202.5Air9003777902, 7911
LMSW-52T2202.5Air9013577902, 7911
 

 

 

For more information about spot welding portable guns or help sizing a gun to your application, please contact T. J. Snow for assistance. More TECNA Products available, please browse our selection:

4665n-4668n-1TECNA Resistance Press Spot Welder

LTG3323A-1TECNA Portable Spot Welding Gun

TECNA MF Inverter Spot Welding Gun
4660n-4663n-1TECNA Rocker Arm Spot Welder

balancersTECNA Balancers

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