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2-t-series-lg-straight_left_web 2-o-series-sm-curved_left_web T series straight handle option for BTB semi-automatic air-cooled MIG guns O series small curved handle option for BTB semi-automatic air-cooled MIG guns O series curved handle option for BTB semi-automatic air-cooled MIG guns

S-Gun Semi-Automatic Air-Cooled MIG Guns

Optimize for Productivity. Standardize for Simplicity.

Bernard® S-Gun™ semi-automatic air-cooled MIG guns are engineered for superior performance in hard-to-feed applications. 

Available in a 300 amp and 400 amp, with T-Series (standard, locking triggers) or O-Series (stand trigger) handles, the S-Gun MIG guns are built-to-order.

Multiple handle and trigger options

  • Choose between seven different curved and straight handle styles
  • Wide selection of handles and easy-to-change trigger options allow guns to be matched to user preference and welding application
Rotatable neck for BTB semi-automatic air-cooled MIG gun shown in several different positons to demonstrate rotatability

Fixed or rotatable necks

  • Wide variety of angle and length options
  • No tools required to adjust rotatable necks
AccuLock S consumables family including contact tip, nozzle, diffuser, liner and power pin

High-performance consumables

Cutaway of steel monocoil cable showing internal cable, trigger leads and copper

Durable steel monocoil cable design

  • Steel monocoil cable for extra pinch/kink resistance
AccuLock S liner family

Liner options

Processes

  • MIG (GMAW) welding

Duty Cycle Rating

  • 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

Cable Length Options

  • 15, 20 and 25 feet

Wire Size Ranges

  • 0.030″ (0.8 mm) to 5/64″ (2.0 mm)

Part Numbers

Consumables Systems

AccuLock S consumables family including contact tip, nozzle, diffuser and liner
AccuLock™ S Consumables

MIG Gun Liners

AccuLock S liner family
AccuLock™ S Liners
Family of color-coded Bernard conventional liners
Bernard® Conventional Liners
Set of two Tregaskiss conventional liners for MIG welding guns
Conventional Liners for Aluminum Wire

Consumables Systems

Part NumberDescription
T-A023CHfor 0.023″ (0.6 mm) wire; qty. 10
T-A030CH*^for 0.030″ (0.8 mm) wire; qty. 10
T-A035CH*^for 0.035″ (0.9 mm) wire; qty. 10
T-A039CH*^for 0.039″ (1.0 mm) wire; qty. 10
T-A045CH*^for 0.045″ (1.2 mm) wire; qty. 10
T-A052CH*^for 0.052″ (1.3 mm) wire; qty. 10
T-A062CH*for 1/16″ (1.6 mm) wire; qty. 10
T-A072CH*for 0.072″ (1.8 mm) wire; qty. 10
T-A078CH*for 5/64″ (2.0 mm) wire; qty. 10
T-A094CH*for 3/32″ (2.8 mm) wire; qty. 10
T-A109CHfor 7/64″ (2.8 mm) wire; qty. 10
T-A125CHfor 1/8″ (3.2 mm) wire; qty. 10
TT-A023CHTapered; for 0.023″ (0.6 mm) wire; qty. 10
TT-A030CHTapered; for 0.030″ (0.8 mm) wire; qty. 10
TT-A035CHTapered; for 0.035″ (0.9 mm) wire; qty. 10
TT-A039CHTapered; for 0.039″ (1.0 mm) wire; qty. 10
TT-A045CHTapered; for 0.045″ (1.2 mm) wire; qty. 10
TT-A052CHTapered; for 0.052″ (1.3 mm) wire; qty. 10
TT-A062CHTapered; for 1/16″ (1.6 mm) wire; qty. 10

*add “-100” to end of the above part numbers for quantities of 100.
^ add “-1000” to end of the above part numbers for quantities of 1000.

Part NumberDescription
D-A1Large diffuser, thread-on; qty. 10
D-A2Large diffuser, slip-on; qty. 10
DS-A1Small diffuser, thread-on; qty. 10
DS-A2Small diffuser, slip-on; qty. 10
Part NumberDescription
N-A3400CLarge nozzle, 3/4″ bore, flush, copper; qty. 10
N-A3418CLarge nozzle, 3/4″ bore, 1/8″ recess, copper; qty. 10
N-A3414CLarge nozzle, 3/4″ bore, 1/4″ recess, copper; qty. 10
N-A3418BLarge nozzle, 3/4″ bore, 1/8″ recess, brass; qty. 10
N-A3414BLarge nozzle, 3/4″ bore, 1/4″ recess, brass; qty. 10
N-A5800CLarge nozzle, 5/8″ bore, flush, copper; qty. 10
N-A5818CLarge nozzle, 5/8″ bore, 1/8″ recess, copper; qty. 10
N-A5814CLarge nozzle, 5/8″ bore, 1/4″ recess, copper; qty. 10
N-A5818BLarge nozzle, 5/8″ bore, 1/8″ recess, brass; qty. 10
N-A5814BLarge nozzle, 5/8″ bore, 1/4″ recess, brass; qty. 10
NT-A3800CLarge nozzle, 3/8″ bore, flush, copper; for tapered contact tips; qty. 10
NS-A5800CSmall nozzle, 5/8″ bore, flush, copper; qty. 10
NS-A5818CSmall nozzle, 5/8″ bore, 1/8″ recess, copper; qty. 10
NS-A5800BSmall nozzle, 5/8″ bore, flush, brass; qty. 10
NS-A5818BSmall nozzle, 5/8″ bore, 1/8″ recess, brass; qty. 10
NS-A1218CSmall nozzle, 1/2″ bore, 1/8″ recess, copper; qty. 10
NS-A1200BSmall nozzle, 1/2″ bore, flush, brass; qty. 10
NS-A1218BSmall nozzle, 1/2″ bore, 1/8″ recess, brass; qty. 10
NST-A3800BSmall nozzle, 3/8″ bore, flush, brass; for tapered contact tips; qty. 10
NST-A3818BSmall nozzle, 3/8″ bore, 1/8″ recess, brass; for tapered contact tips; qty. 10
NST-A38XTBSmall nozzle, 3/8″ bore, 1/8″ extension, brass; for tapered contact tips; qty. 10
NST-A1218BSmall nozzle, 1/2″ bore, 1/8″ recess, brass; for tapered contact tips; qty. 10
Part NumberLiner Color:Description
LA1A-10Yellowfor 0.023″-0.030″ (0.6-0.8 mm) wire, 10 ft (3.05 m)
LA1A-15Yellowfor 0.023″-0.030″ (0.6-0.8 mm) wire, 15 ft (4.57 m)
LA1A-20Yellowfor 0.023″-0.030″ (0.6-0.8 mm) wire, 20 ft (6.10 m)
LA1A-25Yellowfor 0.023″-0.030″ (0.6-0.8 mm) wire, 25 ft (7.62 m)
LA2A-10Greenfor 0.030″-0.035″ (0.8-0.9 mm) wire, 10 ft (3.05 m)
LA2A-15Greenfor 0.030″-0.035″ (0.8-0.9 mm) wire, 15 ft (4.57 m)
LA2A-20Greenfor 0.030″-0.035″ (0.8-0.9 mm) wire, 20 ft (6.10 m)
LA2A-25Greenfor 0.030″-0.035″ (0.8-0.9 mm) wire, 25 ft (7.62 m)
LAD3A-10Whitefor 0.035″-0.045″ (0.9-1.2 mm) wire, 10 ft (3.05 m)
LAD3A-15Whitefor 0.035″-0.045″ (0.9-1.2 mm) wire, 15 ft (4.57 m)
LAD3A-20Whitefor 0.035″-0.045″ (0.9-1.2 mm) wire, 20 ft (6.10 m)
LAD3A-25Whitefor 0.035″-0.045″ (0.9-1.2 mm) wire, 25 ft (7.62 m)
LAD4A-10Redfor 0.045″-1/16″ (1.2-1.6 mm) wire, 10 ft (3.05 m)
LAD4A-15Redfor 0.045″-1/16″ (1.2-1.6 mm) wire, 15 ft (4.57 m)
LAD4A-20Redfor 0.045″-1/16″ (1.2-1.6 mm) wire, 20 ft (6.10 m)
LAD4A-25Redfor 0.045″-1/16″ (1.2-1.6 mm) wire, 25 ft (7.62 m)
LA6A-10Bluefor 5/64″ (2.0 mm) wire, 10 ft (3.05 m)
LA6A-15Bluefor 5/64″ (2.0 mm) wire, 15 ft (4.57 m)
LA6A-20Bluefor 5/64″ (2.0 mm) wire, 20 ft (6.10 m)
LA6A-25Bluefor 5/64″ (2.0 mm) wire, 25 ft (7.62 m)

MIG Gun 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, diffusers, nozzles, neck insulators, power pins and power pin caps specific to the system.

>> See AccuLock S liner part numbers

Part NumberDescription
L1A-15for 0.023″ (0.6 mm) – 0.030″ (0.8 mm) wire; 15′ length
L1A-25for 0.023″ (0.6 mm) – 0.030″ (0.8 mm) wire; 25′ length
L2A-15for 0.030″ (0.8 mm) – 0.035″ (0.9 mm) wire; 15′ length
L2A-25for 0.030″ (0.8 mm) – 0.035″ (0.9 mm) wire; 25′ length
L3A-10for 0.035″ (0.9 mm) – 0.045″ (1.2 mm) wire; 10′ length
L3A-15for 0.035″ (0.9 mm) – 0.045″ (1.2 mm) wire; 15′ length*
L3A-25for 0.035″ (0.9 mm) – 0.045″ (1.2 mm) wire; 25′ length*
L4A-10for 0.045″ (1.2 mm) – 1/16″ (1.6 mm) wire; 10′ length
L4A-15for 0.045″ (1.2 mm) – 1/16″ (1.6 mm) wire; 15′ length**
L4A-25for 0.045″ (1.2 mm) – 1/16″ (1.6 mm) wire; 25′ length**
L6A-15for 5/64″ (2.0 mm) wire; 15′ length
L6A-25for 5/64″ (2.0 mm) wire; 25′ length
L7A-15for 3/32″ (2.4 mm) wire; 15′ length
L7A-25for 3/32″ (2.4 mm) wire; 25′ length
L8A-15for 7/64″ (2.8 mm) – 1/8″ (3.2 mm) wire; 15′ length
L8A-25for 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

Part NumberDescription
415-35-2for 0.035″ (0.9 mm) – 0.045″ (1.2 mm) wire, steel wrapped nylon; 15′ length
415-45-02for 0.035″ (0.9 mm) – 3/64″ (1.2 mm) wire, polymer liner; 10′ length
415-45-03for 0.035″ (0.9 mm) – 3/64″ (1.2 mm) wire, polymer liner; 15′ length
415-45-04for 0.035″ (0.9 mm) – 0.045″ (1.2 mm) wire, steel wrapped nylon; 25′ length
415-116-2for 0.045″ (1.2 mm) – 1/16″ (1.6 mm) wire, steel wrapped nylon; 15′ length
415-116-22for 3/64″ (1.2 mm) – 1/16″ (1.6 mm) wire, polymer liner; 10′ length
415-116-23for 3/64″ (1.2 mm) – 1/16″ (1.6 mm) wire, polymer liner; 15′ length

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

  • Q-neck coupler and grip
  • Flex necks
  • Jump liners
  • Heat shield
  • Neck guard
  • Specialty nozzles
  • Gun hanger
  • Repair kits

Documentation

Consumables

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Copyright 2024 Tregaskiss | All Rights Reserved

As manufacturers of semi-automatic, fixed automatic and robotic MIG guns and consumables, Tregaskiss and Bernard have earned a reputation as an experienced, dependable partner to its customers in the automotive, construction and fabrication, heavy equipment, ship, rail, general manufacturing, commercial truck and trailer, and oil and gas industries. Tregaskiss and Bernard offer air-cooled semi-automatic, fixed automatic and robotic MIG guns, water-cooled semi-automatic, fixed automatic and robotic MIG guns, reamers, nozzle cleaning stations, anti-spatter liquid, wire cutters, anti-spatter sprayers, clutches, welding consumables, nozzles, MIG welding tips, and MIG welding torches.