• Bernard MIG Welding Products
  • Bernard MIG Welding Products
  • Bernard MIG Welding Products
  • Bernard MIG Welding Products
  • Bernard MIG Welding Products
  • Bernard MIG Welding Products
  • Bernard MIG Welding Products
  • Bernard MIG Welding Products

Bernard® BTB Semi-Automatic Air-Cooled MIG Welding Guns

Optimize for Productivity.
          Standardize for Simplicity.

Build your ultimate MIG gun. Choose from a variety of necks, handles and trigger styles to optimize welder ergonomics and weld access. Then standardize with a single line of consumables to simplify maintenance and contain costs.

Load and Lock with AccuLock S Consumables for fewer wire-feeding problems and more productivity

You can count on Bernard BTB MIG Guns to deliver industrial-grade performance and reliability in the most demanding and abusive environments.
 

Download PDFSpec Sheet: English  |  Espanõl  |  Français  |  Português

Handle impact test video

 

Our Most Rugged and Flexible MIG Gun Offering Ever!


Multiple Handle and Trigger Options  Learn More

  • Choose between seven different curved and straight handle styles
  • New C Series Straight Handle features comfortable overmolding and ergonomic rear swivel
  • Wide selection of handles and easy-to-change trigger options allow guns to be matched to user preference and welding application
  • Triggers are designed and built to last more than one million cycles


Fixed or Rotatable Necks  Learn More

  • Wide variety of angle and length options
  • Aluminum armored necks withstand abuse and offer outstanding heat dissipation
  • No tools required to adjust rotatable necks


High Performance Consumables


Unicable Design  Learn More

  • Cone and cone nut threaded cable connections for optimal electrical conductivity
  • Internal gas hose resists kinking for consistent gas flow
  • Choose Hytrel® Polymer cable (industrial grade), or upgrade to Steel Monocoil cable for extra pinch/kink resistance


Liner Options

Processes

  • MIG (GMAW) welding

Rated Output

  • 200 amp model – 100%: 200 amp with CO2, 60%: 200 amp with mixed gases
  • 300 amp model – 100%: 300 amp with CO2, 60%: 300 amp with mixed gases
  • 400 amp model – 100%: 400 amp with CO2, 60%: 400 amp with mixed gases
  • 500 amp model – 100%: 500 amp with CO2, 60%: 500 amp with mixed gases
  • 600 amp model – 100%: 600 amp with CO2, 60%: 600 amp with mixed gases

Cable Length Options

  • 10, 15, 20 and 25 feet

Wire Size Ranges

  • 0.023" (0.6 mm) to 1/8" (3.2 mm)

Technical Documentation

Customize your BTB Semi-Automatic Air-Cooled MIG Gun online

Configure your ultimate Bernard BTB Semi-Automatic Air-Cooled MIG Gun Online!
Find a replacement parts list for the Bernard BTB Semi-Automatic Air-Cooled MIG Gun you already have!


Build your ultimate MIG gun!

Configure the gun part number you need, or reverse lookup your existing gun part number – plus get access to additional resources and an expanded replacement parts list with diagram.

This new mobile-friendly online configurator, now including Bernard® AccuLock™ S Consumable options, provides downloadable exploded view diagrams and other valuable takeaways that you can print, save for later, or share via email.

Check it out today!

 

Gun Part Number Conversion Tool
Click here to convert your legacy Q-Gun, S-Gun and T-Gun MIG Gun part number to a BTB MIG Gun part number.

Part Numbers

Consumables Systems
 

Bernard AccuLock S Consumables Bernard Centerfire Consumables Bernard Quik Tip Consumables TOUGH LOCK Consumables for Bernard BTB MIG Guns

AccuLock™ S
Consumables

Centerfire™
Consumables

Quik Tip™
Consumables

TOUGH LOCK™
Consumables

 

MIG Gun Liners
 

AccuLock S Liners -- a critical component of the Bernard AccuLock S Consumables System QUICK LOAD Liners for Bernard BTB MIG Guns Bernard Universal Conventional Liners Conventional Liners for Aluminum Wire

AccuLock™ S Liners

QUICK LOAD™ Liners

Universal
Conventional Liners

Conventional Liners for Aluminum Wire

 

AccuLock™ S Consumables

AccuLock HD Contact Tips

 

AccuLock S Diffusers (Large)

T-A023CH

for 0.023" (0.6 mm) wire

 

D-A1

Diffuser, thread-on

T-A030CH

for 0.030" (0.8 mm) wire

 

 

 

T-A035CH

for 0.035" (0.9 mm) wire

 

AccuLock S Nozzles (Large)

T-A039CH

for 0.039" (1.0 mm) wire

 

N-A3400C

3/4" bore, flush, copper

T-A045CH

for 0.045" (1.2 mm) wire

 

N-A3418C

3/4" bore, 1/8" recess, copper

T-A052CH

for 0.052" (1.3 mm) wire

 

N-A3414C

3/4" bore, 1/4" recess, copper

T-A062CH

for 1/16" (1.6 mm) wire

 

N-A3418B

3/4" bore, 1/8" recess, brass

T-A072CH

for 0.072" (1.8 mm) wire

 

N-A3414B

3/4" bore, 1/4" recess, brass

T-A078CH

for 5/64" (2.0 mm) wire

 

N-A5800C

5/8" bore, flush, copper

T-A094CH

for 3/32" (2.8 mm) wire

 

N-A5818C

5/8" bore, 1/8" recess, copper

T-A109CH

for 7/64" (2.8 mm) wire

 

N-A5814C

5/8" bore, 1/4" recess, copper

T-A125CH

for 1/8" (3.2 mm) wire

 

N-A5818B

5/8" bore, 1/8" recess, brass

 

 

 

N-A5814B

5/8" bore, 1/4" recess, brass

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AccuLock S Liners 

Important: AccuLock S Liners are a critical component of the complete AccuLock S Consumables system, and can ONLY be used with AccuLock contact tips, gas diffusers, nozzles, neck insulators, power pins and power pin caps.

LA1A-10

for 0.023"-0.030" (0.6-0.8 mm) wire, 10 ft (3.05 m)

LA1A-15

for 0.023"-0.030" (0.6-0.8 mm) wire, 15 ft (4.57 m)

LA1A-20

for 0.023"-0.030" (0.6-0.8 mm) wire, 20 ft (6.10 m)

LA1A-25

for 0.023"-0.030" (0.6-0.8 mm) wire, 25 ft (7.62 m)

LA2A-10

for 0.030"-0.035" (0.8-0.9 mm) wire, 10 ft (3.05 m)

LA2A-15

for 0.030"-0.035" (0.8-0.9 mm) wire, 15 ft (4.57 m)

LA2A-20

for 0.030"-0.035" (0.8-0.9 mm) wire, 20 ft (6.10 m)

LA2A-25

for 0.030"-0.035" (0.8-0.9 mm) wire, 25 ft (7.62 m)

LAD3A-10

for 0.035"-0.045" (0.9-1.2 mm) wire, 10 ft (3.05 m)

LAD3A-15

for 0.035"-0.045" (0.9-1.2 mm) wire, 15 ft (4.57 m)

LAD3A-20

for 0.035"-0.045" (0.9-1.2 mm) wire, 20 ft (6.10 m)

LAD3A-25

for 0.035"-0.045" (0.9-1.2 mm) wire, 25 ft (7.62 m)

LAD4A-10

for 0.045"-1/16" (1.2-1.6 mm) wire, 10 ft (3.05 m)

LAD4A-15

for 0.045"-1/16" (1.2-1.6 mm) wire, 15 ft (4.57 m)

LAD4A-20

for 0.045"-1/16" (1.2-1.6 mm) wire, 20 ft (6.10 m)

LAD4A-25

for 0.045"-1/16" (1.2-1.6 mm) wire, 25 ft (7.62 m)

LA6A-10

for 5/64" (2.0 mm) wire, 10 ft (3.05 m)

LA6A-15

for 5/64" (2.0 mm) wire, 15 ft (4.57 m)

LA6A-20

for 5/64" (2.0 mm) wire, 20 ft (6.10 m)

LA6A-25

for 5/64" (2.0 mm) wire, 25 ft (7.62 m)

LA7A-10

for 3/32" (2.4 mm) wire, 10 ft (3.05 m)

LA7A-15

for 3/32" (2.4 mm) wire, 15 ft (4.57 m)

LA7A-20

for 3/32" (2.4 mm) wire, 20 ft (6.10 m)

LA7A-25

for 3/32" (2.4 mm) wire, 25 ft (7.62 m)

LA8A-10

for 7/64"-1/8" (2.8-3.2 mm) wire, 10 ft (3.05 m)

LA8A-15

for 7/64"-1/8" (2.8-3.2 mm) wire, 15 ft (4.57 m)

LA8A-20

for 7/64"-1/8" (2.8-3.2 mm) wire, 20 ft (6.10 m)

LA8A-25

for 7/64"-1/8" (2.8-3.2 mm) wire, 25 ft (7.62 m)

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Centerfire™ Consumables

Centerfire Contact Tips

 

Centerfire Diffusers

T-023

for 0.023" (0.6 mm) wire

 

DS-1

Small, brass

T-030

for 0.030" (0.8 mm) wire

 

D-1

Large, brass

T-035

for 0.035" (0.9 mm) wire*

     

T-039

for 0.039" (1.0 mm) wire

 

Centerfire Nozzles

T-045

for 0.045" (1.2 mm) wire*

 

NS-1218B

1/2" bore, 1/8" tip recess, brass

T-052

for 0.052" (1.4 mm) wire

 

NS-5818C

5/8" bore, 1/8" tip recess, brass

T-062

for 1/16" (1.6 mm) wire*

 

N-5818C

5/8" bore, 1/8" tip recess, copper

T-078

for 5/64" (2.0 mm) wire

 

N-5814C

5/8" bore, 1/4" tip recess, copper

T-094

for 3/32" (2.4 mm) wire

 

N-3414C

3/4" bore, 1/4" tip recess, copper

T-109

for 7/64" (2.8 mm) wire

     

T-125

for 1/8" (3.2 mm) wire

     

*Part number also applicable for aluminum in corresponding size

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Quik Tip™ Consumables

Quik Tip Contact Tips

 

Quik Tip Diffusers

T1023

for 0.023" (0.6 mm) wire

 

D118Q

1/8" recess

T1030

for 0.030" (0.8 mm) wire

 

D114Q

1/4" recess

T1035

for 0.035" (0.9 mm) wire*

     

T1039

for 0.039" (1.0 mm) wire

 

Quik Tip Nozzles

T1045

for 0.045" (1.2 mm) wire

 

N1C58Q

5/8" bore, plated copper

T1052

for 0.052" (1.4 mm) wire

 

N1C34HQ

3/4" bore, plated copper, HD

T1116

for 1/16" (1.6 mm) wire*

 

 

 

T1564

for 5/64" (2.0 mm) wire

 

 

 

T1332

for 3/32" (2.4 mm) wire

 

 

 

T1764

for 7/64" (2.8 mm) wire

 

 

 

T1118

for 1/8" (3.2 mm) wire

 

 

 

T1364

for 3/64" (1.2 mm) aluminum wire

 

 

 

*Part number also applicable for aluminum in corresponding size

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TOUGH LOCK™ Consumables

TOUGH LOCK HD Contact Tips

 

TOUGH LOCK HD Retaining Heads

403-20-30

for 0.030" (0.8 mm) wire

 

404-26

Dual taper, brass

403-20-35

for 0.035" (0.9 mm) wire*

 

 

 

403-20-1.0

for 0.039" (1.0 mm) wire

 

TOUGH LOCK HD Nozzles

403-20-45

for 0.045" (1.2 mm) wire*

 

401-6-62

5/8" bore, 1/8" tip recess, copper

403-20-52

for 0.052" (1.4 mm) wire

 

401-5-62

5/8" bore, 1/4" tip recess, copper

403-20-116

for 1/16" (1.6 mm) wire*

 

401-5-75

3/4" bore, 1/4" tip recess, copper

403-20-564

for 5/64" (2.0 mm) wire

 

 

 

403-20-332

for 3/32" (2.4 mm) wire

 

 

 

403-20-364

for 3/64" (1.2 mm) aluminum wire

 

 

 

*Part number also applicable for aluminum in corresponding size

         

TOUGH LOCK SD Contact Tips

 

TOUGH LOCK SD Retaining Heads

403-14-23

for 0.023" (0.6 mm) wire

 

404-18

Brass

403-14-30

for 0.030" (0.8 mm) wire

 

 

 

403-14-35

for 0.035" (0.9 mm) wire*

 

TOUGH LOCK SD Nozzles

403-14-1.0

for 0.039" (1.0 mm) wire

 

401-6-62

5/8" bore, 1/8" tip recess, copper

403-14-45

for 0.045" (1.2 mm) wire*

 

 

 

*Part number also applicable for aluminum in corresponding size

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MIG Guns Liners

AccuLock™ S Liners

Important: AccuLock S Liners are a critical component of the complete AccuLock S Consumables system, and can ONLY be used with AccuLock contact tips, gas diffusers, nozzles, neck insulators, power pins and power pin caps.
Click here to view AccuLock S Liner part numbers.

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QUICK LOAD™ Liners

415-23-15Q

for 0.023" (0.6 mm) wire; 15' length

415-23-25Q

for 0.023" (0.6 mm) wire; 25' length

415-30-15Q

for 0.030" (0.8 mm) wire; 15' length

415-30-25Q

for 0.030" (0.8 mm) wire; 25' length

415-35-10Q

for 0.035" (0.9 mm) - 0.045" (1.2 mm) wire; 10' length

415-35-15Q

for 0.035" (0.9 mm) - 0.045" (1.2 mm) wire; 15' length

415-35-25Q

for 0.035" (0.9 mm) - 0.045" (1.2 mm) wire; 25' length

415-116-10Q

for 0.052" (1.4 mm) - 1/16" (1.6 mm) wire; 10' length

415-116-15Q

for 0.052" (1.4 mm) - 1/16" (1.6 mm) wire; 15' length

415-116-25Q

for 0.052" (1.4 mm) - 1/16" (1.6 mm) wire; 25' length

415-564-15Q

for 5/64" (2.0 mm) wire; 15' length

415-564-25Q

for 5/64" (2.0 mm) wire; 25' length

415-332-15Q

for 3/32" (2.4 mm) wire; 15' length

415-332-25Q

for 3/32" (2.4 mm) wire; 25' length

   

QUICK LOAD Liner Retainers – required for initial installation only (sold separately)

415-26

for 0.035" - 5/64" wire

415-24

for 0.078" - 3/32" wire

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Universal Conventional Liners

L1A-15

for 0.023" (0.6 mm) - 0.030" (0.8 mm) wire; 15' length

L1A-25

for 0.023" (0.6 mm) - 0.030" (0.8 mm) wire; 25' length

L2A-15

for 0.030" (0.8 mm) - 0.035" (0.9 mm) wire; 15' length

L2A-25

for 0.030" (0.8 mm) - 0.035" (0.9 mm) wire; 25' length

L3A-10

for 0.035" (0.9 mm) - 0.045" (1.2 mm) wire; 10' length

L3A-15

for 0.035" (0.9 mm) - 0.045" (1.2 mm) wire; 15' length*

L3A-25

for 0.035" (0.9 mm) - 0.045" (1.2 mm) wire; 25' length*

L4A-10

for 0.045" (1.4 mm) - 1/16" (1.6 mm) wire; 10' length

L4A-15

for 0.045" (1.4 mm) - 1/16" (1.6 mm) wire; 15' length**

L4A-25

for 0.045" (1.4 mm) - 1/16" (1.6 mm) wire; 25' length**

L6A-15

for 5/64" (2.0 mm) wire; 15' length

L6A-25

for 5/64" (2.0 mm) wire; 25' length

L7A-15

for 3/32" (2.4 mm) wire; 15' length

L7A-25

for 3/32" (2.4 mm) wire; 25' length

L8A-15

for 7/64" (2.8 mm) - 1/8" (3.2 mm) wire; 15' length

L8A-25

for 7/64" (2.8 mm) - 1/8" (3.2 mm) wire; 25' length

*Standard liner for 0.035" and 0.045" guns **Standard liner for 1/16" guns

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Conventional Liners for Aluminum Wire

415-35-2

for 0.035" (0.9 mm) - 0.045" (1.2 mm) wire, steel wrapped nylon; 15' length

415-45-02

for 0.035" (0.9 mm) - 3/64" (1.2 mm) wire, polymer liner; 10' length

415-45-03

for 0.035" (0.9 mm) - 3/64" (1.2 mm) wire, polymer liner; 15' length

415-45-04

for 0.035" (0.9 mm) - 0.045" (1.2 mm) wire, steel wrapped nylon; 25' length

415-116-2

for 0.045" (1.2 mm) - 1/16" (1.6 mm) wire, steel wrapped nylon; 15' length

415-116-22

for 3/64" (1.2 mm) - 1/16" (1.6 mm) wire, polymer liner; 10' length

415-116-23

for 3/64" (1.2 mm) - 1/16" (1.6 mm) wire, polymer liner; 15' length

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Accessories

In addition to the options and features included in our configurator, customers can choose from a variety of gun accessories that can help to further customize their gun to their personal preferences and the job at hand:

  • Neck guard
  • Specialty nozzles
  • Gun hanger
  • Repair kits
WhyBuy video

Product Literature & Promotional Videos

  • Bernard® Semi-Automatic MIG Guns and Consumables Catalog:  English  |  Español  |  Français
  • NEW! Bernard AccuLock™ S Consumables Line Sheet:  English
  • Handle Impact Test WhyBuy Video  MP4

How-To Guides and Videos

Articles

Additional Resources

Convert part numbers from legacy Q-Gun, S-Gun and T-Gun to BTB MIG Gun part numbers

Tech Connection Product News