Centerfire consumables family shown with contact tips, nozzle and diffuser

Centerfire nozzle shown from bottom at 45-degree angle

Centerfire Consumables

Bernard developed its Centerfire™ consumables system with the user’s cost considerations in mind. Our contact tips, nozzles and diffusers are easy to use and high performing – they provide better arc starts, less spatter and more consistent welds – and also last up to three times longer than competitive brands.

Not currently using a Bernard® MIG gun? You can still enjoy the benefits of Centerfire consumables by installing them on other brands of MIG guns by using our Centerfire conversion series.

All consumables are not created equal. From materials to cost and design quality, each brand on the market varies and so does their performance. In fact, comparing consumable quality and costs to the amount of labor for changeover and rework often reveals surprising results – less expensive consumables don’t always add up to cost savings.

more...

Overview
Compatibility
Contact Tips
Diffusers
Nozzles
Liners
HD Series

No tools required to replace tip or nozzle
“Drop-in” tip with no threads means quick change after burnback, reducing down time
Large diameter tip base and tapered seat provides better electrical conductivity and heat transfer
Spatter shield within nozzle protects diffuser and gives smoother, less turbulent gas flow
Solid, concentric relationship between tip and nozzle keeps tip centered even after hard use and abuse
Threaded nozzle holds tip fixed at 1/4″ or 1/8″ recess, flush, or 1/8″ stick out
Complete family of tips and nozzles is available to meet most of your welding needs

Looking for heavy-duty consumables?

The Centerfire HD series is designed specifically for shipbuilding, trailer fabrication or any heavy equipment manufacturing operation.

Nozzles feature a removable nozzle cone, thicker walls and a high temperature insulator
Nozzle cleaning made easy – the removable nozzle cone allows greater access to the nozzle body for spatter removal
Available in a variety of configurations with several nozzle orifices and tip recesses
Compatible with standard Centerfire contact tips, gas diffusers and insulating caps

System Components

Centerfire Consumables

Centerfire contact tips
Centerfire gas diffusers
Centerfire nozzles
Neck insulators
- 4523R (small insulator)
- 4423R (large insulator)

Centerfire HD Series Consumables

Centerfire contact tips
Centerfire gas diffusers
Centerfire nozzle cones
Centerfire nozzle bodies
Neck insulators
- 4423R (large insulator)

Product Compatibility

Centerfire consumables are compatible with the following:

Centerfire Contact Tips; Copper

For use with Centerfire and Centerfire HD series consumables

T-023	‘T’ series contact tip for 0.023″ (0.6 mm) wire
T-030	‘T’ series contact tip for 0.030″ (0.8 mm) wire
T-035	‘T’ series contact tip for 0.035″ (0.9 mm) wire
T-039	‘T’ series contact tip for 0.039″ (1.0 mm) wire
T-045	‘T’ series contact tip for 0.045″ (1.2 mm) wire
T-052	‘T’ series contact tip for 0.052″ (1.4 mm) wire
T-062	‘T’ series contact tip for 1/16″ (1.6 mm) wire
T-072	‘T’ series contact tip for 0.072″ (1.8 mm) wire
T-078	‘T’ series contact tip for 5/64″ (2.0 mm) wire
T-094	‘T’ series contact tip for 3/32″ (2.4 mm) wire
T-109	‘T’ series contact tip for 7/64″ (2.8 mm) wire
T-125	‘T’ series contact tip for 1/8″ (3.2 mm) wire

Centerfire Tapered Contact Tips; Copper

For use with Centerfire consumables; Not available for use with Centerfire HD series consumables

TT-023	‘TT’ series contact tip for 0.023″ (0.6 mm) wire; tapered
TT-030	‘TT’ series contact tip for 0.030″ (0.8 mm) wire; tapered
TT-035	‘TT’ series contact tip for 0.035″ (0.9 mm) wire; tapered
TT-039	‘TT’ series contact tip for 0.039″ (1.0 mm) wire; tapered
TT-045	‘TT’ series contact tip for 0.045″ (1.2 mm) wire; tapered
TT-052	‘TT’ series contact tip for 0.052″ (1.4 mm) wire; tapered
TT-062	‘TT’ series contact tip for 1/16″ (1.6 mm) wire; tapered

D-1

Gas diffuser, large

For use with Centerfire consumables; Not available for use with Centerfire HD series consumables

DS-1	Gas diffuser, small
DW-1	Gas diffuser, water-cooled

Centerfire Nozzles; Small

NS-5800C	5/8″ bore, flush, copper
NS-5818C	5/8″ bore, 1/8″ recess, copper
NS-5800B	5/8″ bore, flush, brass
NS-5818B	5/8″ bore, 1/8″ recess, brass
NS-1218C	1/2″ bore, 1/8″ recess, copper
NS-1200B	1/2″ bore, flush, brass
NS-1218B	1/2″ bore, 1/8″ recess, brass
NS-FLX	Self-Shielded Conversion Kit (includes 7010024 and 7010059 insulators, plus 7010046 tip holder)
NST-3800B	3/8″ bore, flush, brass; tapered
NST-3818B	3/8″ bore, 1/8″ recess, brass; tapered
NST-38XTB	3/8″ bore, 1/8″ extension, brass; tapered

Centerfire Nozzles; Large

N-3400C	3/4″ bore, flush, copper
N3418C	3/4″ bore, 1/8″ recess, copper
N-3414C	3/4″ bore, 1/4″ recess, copper
N-3418B	3/4 bore, 1/8″ recess, brass
N-3414B	3/4″ bore, 1/4″ recess, brass
N-5800C	5/8″ bore, flush, copper
N-5818C	5/8″ bore, 1/8 recess, copper
N-5814C	5/8″ bore, 1/4″ recess, copper
N-5818B	5/8″ bore, 1/8″ recess, brass
N-5814B	5/8″ bore, 1/4″ recess, brass
NT-3800C	3/8″ bore, flush, copper; tapered

Centerfire Nozzles; Water-Cooled

NW-3418C	3/4″ bore, 1/8″ recess, copper
NW-3414C	3/4″ bore, 1/4″ recess, copper

Compatible Liners

Family of color-coded Bernard conventional liners — Bernard Conventional Liners

Family of three QUICK LOAD liners with liner retainers — QUICK LOAD Liners

Set of two Tregaskiss conventional liners for MIG welding guns — Liners for Aluminum Wire

Cutaway of a jump liner installed inside a MIG gun — Jump Liners

Bernard Conventional Liners

	Liner Color:
L1A-15	Yellow	for 0.023″-0.030″ (0.6-0.8 mm) wire, 15 ft (4.57 m)
L1A-25	Yellow	for 0.023″-0.030″ (0.6-0.8 mm) wire, 25 ft (7.62 m)
L2A-15	Green	for 0.030″-0.035″ (0.8-0.9 mm) wire, 15 ft (4.57 m)
L2A-25	Green	for 0.030″-0.035″ (0.8-0.9 mm) wire, 25 ft (7.62 m)
L3A-15*	White	for 0.035″-0.045″ (0.9-1.2 mm) wire, 15 ft (4.57 m)
L3A-25*	White	for 0.035″-0.045″ (0.9-1.2 mm) wire, 25 ft (7.62 m)
L4A-15**	Red	for 0.045″-1/16″ (1.2-1.6 mm) wire, 15 ft (4.57 m)
L4A-25**	Red	for 0.045″-1/16″ (1.2-1.6 mm) wire, 25 ft (7.62 m)
L6A-15	Blue	for 5/64″ (2.0 mm) wire, 15 ft (4.57 m)
L6A-25	Blue	for 5/64″ (2.0 mm) wire, 25 ft (7.62 m)
L7A-15	Grey	for 3/32″ (2.4 mm) wire, 15 ft (4.57 m)
L7A-25	Grey	for 3/32″ (2.4 mm) wire, 25 ft (7.62 m)
L8A-15	Black	for 7/64″-1/8″ (2.8-3.2 mm) wire, 15 ft (4.57 m)
L8A-25	Black	for 7/64″-1/8″ (2.8-3.2 mm) wire, 25 ft (7.62 m)

*Standard liner for guns using 0.035″ and 0.045″ wire
**Standard liner for guns using 1/16″ wire

QUICK LOAD® Liners

415-23-15Q	for 0.023″ wire, 15′ length; high carbon steel – round wound; replaces conventional liner 415-23-15
415-30-6Q	for 0.030″ wire, 6′ length; high carbon steel – round wound; replaces conventional liner 415-30-6
415-30-15Q	for 0.030″ wire, 15′ length; high carbon steel – round wound; replaces conventional liner 415-30-15
415-35-6Q	for 0.035″ – 0.045″ wire, 6′ length; high carbon steel – round wound; replaces conventional liner 415-35-6
415-35-10Q	for 0.035″ – 0.045″ wire, 10′ length; high carbon steel – round wound; replaces conventional liner 415-35-10
415-35-15Q	for 0.035″ – 0.045″ wire, 15′ length; high carbon steel – round wound; replaces conventional liner 415-35-15
415-35-25Q	for 0.035″ – 0.045″ wire, 25′ length; high carbon steel – round wound; replaces conventional liner 415-35-25
415-116-6Q	for 0.045″ – 1/16″ wire, 6′ length; high carbon steel – round wound; replaces conventional liner 415-116-6
415-116-10Q	for 0.045″ – 1/16″ wire, 10′ length; high carbon steel – round wound; replaces conventional liner 415-116-10
415-116-15Q	for 0.045″ – 1/16″ wire, 15′ length; high carbon steel – round wound; replaces conventional liner 415-116-15
415-116-25Q	for 0.045″ – 1/16″ wire, 25′ length; high carbon steel – round wound; replaces conventional liner 415-116-25
415-564-6Q	for 1/16″ – 5/64″ wire, 6′ length; high carbon steel – round wound; replaces conventional liner 415-564-6
415-564-15Q	for 1/16″ – 5/64″ wire, 15′ length; high carbon steel – round wound; replaces conventional liner 415-564-15
415-564-25Q	for 1/16″ – 5/64″ wire, 25′ length; high carbon steel – round wound; replaces conventional liner 415-564-25
415-332-6Q	for 0.078″ – 3/32″ wire, 6′ length; high carbon steel – round wound; replaces conventional liner 415-332-6
415-332-15Q	for 0.078″ – 3/32″ wire, 15′ length; high carbon steel – round wound; replaces conventional liner 415-332-15
415-332-25Q	for 0.078″ – 3/32″ wire, 25′ length; high carbon steel – round wound; replaces conventional liner 415-332-25

QUICK LOAD Liner Retainers

Required for initial QUICK LOAD liner installation only (sold separately)

415-24*	for 0.078″ – 3/32″ wire
415-26*	for 0.030″ – 5/64″ wire
415-37**	for 0.030″ – 5/64″ wire

*Compatible with Tregaskiss® robotic and automatic MIG guns and Bernard® BTB and TGX® semi-automatic air-cooled MIG guns
**Compatible with most Tweco® MIG guns

Liners for Aluminum Wire

415-45-02	Polymer liner for 0.035″ – 3/64″ aluminum wire, 10′ length
415-45-03	Polymer liner for 0.035″ – 3/64″ aluminum wire, 15′ length
415-35-2	Steel wrapped nylon liner for 0.035″ – 0.045″ aluminum wire, 15′ length
415-45-04	Polymer liner for 0.035″ – 3/32″ aluminum wire, 25′ length
415-116-2	Steel wrapped nylon liner for 0.045″ – 1/16″ aluminum wire, 15′ length
415-116-22	Polymer liner for 3/64″ – 1/16″ aluminum wire, 10′ length
415-116-23	Polymer liner for 3/64″ – 1/16″ aluminum wire, 15′ length
415-116-26	Polymer liner for 3/64″ – 1/16″ aluminum wire, 25′ length

Jump Liners

Not recommended for use with QUICK LOAD liners

QJL-2330	Jump Liner for 0.023″ (0.6 mm) – 0.030″ (0.8 mm) wire; 14″ length
QJL-2330-XL	Jump Liner for 0.023″ (0.6 mm) – 0.030″ (0.8 mm) wire; 27″ length
QJL-3545	Jump Liner for 0.035″ (0.9 mm) – 0.045″ (1.2 mm) wire; 14″ length
QJL-3545-XL	Jump Liner for 0.035″ (0.9 mm) – 0.045″ (1.2 mm) wire; 27″ length
QJL-116	Jump Liner for 1/16″ (1.6 mm) wire; 14″ length
QJL-116-XL	Jump Liner for 1/16″ (1.6 mm) wire; 27″ length
QJLH-116	Heavy Duty (HD) Jump Liner for 1/16″ (1/6 mm) wire; 14″ length
QJLN-364	Nylon Jump Liner for 0.035″ (0.9 mm) – 3/64″ (1.2 mm) aluminum wire; 14″ length
QJLN-116	Nylon Jump Liner for 1/16″ (1.6 mm) aluminum wire; 14″ length

Centerfire HD Series Consumables

Centerfire Contact Tips; Copper

T-023	‘T’ Series contact tip for 0.023″ (0.6 mm) wire
T-030	‘T’ Series contact tip for 0.030″ (0.8 mm) wire
T-035	‘T’ Series contact tip for 0.035″ (0.9 mm) wire
T-039	‘T’ Series contact tip for 0.039″ (1.0 mm) wire
T-045	‘T’ Series contact tip for 0.045″ (1.2 mm) wire
T-052	‘T’ Series contact tip for 0.052″ (1.4 mm) wire
T-062	‘T’ Series contact tip for 1/16″ (1.6 mm) wire
T-072	‘T’ Series contact tip for 0.072″ (1.8 mm) wire
T-078	‘T’ Series contact tip for 5/64″ (2.0 mm) wire
T-094	‘T’ Series contact tip for 3/32″ (2.4 mm) wire
T-109	‘T’ Series contact tip for 7/64″ (2.8 mm) wire
T-125	‘T’ Series contact tip for 1/8″ (3.2 mm) wire

Centerfire Gas Diffusers

D-1

Large gas diffuser

Centerfire Nozzle Bodies

N-HDC

Nozzle body

Centerfire Nozzle Cones

3414	3/4″ bore, 1/4″ recess
3418	3/4″ bore, 1/8″ recess
5814	5/8″ bore, 1/4″ recess
5818	5/8″ bore, 1/8″ recess

Neck Insulators

4423R

Large insulator

Bernard

Tregaskiss

Centerfire Consumables

Looking for heavy-duty consumables?

System Components

Centerfire Consumables

Centerfire HD Series Consumables

Product Compatibility

Centerfire Contact Tips; Copper

Centerfire Tapered Contact Tips; Copper

Centerfire Nozzles; Small

Centerfire Nozzles; Large

Centerfire Nozzles; Water-Cooled

Bernard Conventional Liners

QUICK LOAD® Liners

QUICK LOAD Liner Retainers

Liners for Aluminum Wire

Jump Liners

Centerfire HD Series Consumables

Centerfire Contact Tips; Copper

Centerfire Gas Diffusers

Centerfire Nozzle Bodies

Centerfire Nozzle Cones

Neck Insulators

Documentation

Consumables

How-Tos

Videos

Related Products

Product Updates

Related Articles

Additional Resources