How We Can Help You
Advanced Integrated Technologies ( AIT ) is a resistance welding equipment and technical support provider for Nippon Avionics ( Avio ) brand of resistance tweezer welders and accessories as well as Sunstone brand tweezer welders. We can evaluate your product samples, provide free test welds, and accurately specify which equipment is best for your application. We can then provide the equipment you need at an economical price, and assist with any technical issues you encounter setting up your welding process. Submit a contact form or call us today to request assistance with your next project.
The welding machine series of hand operated models are arranged to weld a difficult object that can't be welded by a fixed type weld head, like at a jamming area. No side-to-side rocking of electrodes. Operating with low power due to their compact and lightweight size.

Features | NA-54A |
Pressure Range (N) | 7.8-44.1 |
Electrode Stroke | 10mm Max |
Depth Dimension of Pocket | 50mm |
Driving Method | Manual |
Applicable Electrode | EL-125 Series |
Dimensions (mm) | 30x195x47 |
Weld Cable | 1500mm |

Features | NA-54LA |
Pressure Range (N) | 7.8-44.1 |
Electrode Stroke | - |
Depth Dimension of Pocket | - |
Driving Method | Manual |
Applicable Electrode | EL-54L |
Dimensions (mm) | 30x195x47 |
Weld Cable | 1500mm |

Features | NA-57A |
Pressure Range (N) | 9.8-49 |
Electrode Stroke | - |
Depth Dimension of Pocket | - |
Driving Method | Manual |
Applicable Electrode | Specialized for NA-57A |
Dimensions (mm) | 36Φ xD207mm |
Weld Cable | 1500mm |

Features | NA-58A |
Pressure Range (N) | Manual |
Electrode Stroke | 1mm Max |
Depth Dimension of Pocket | 75mm |
Driving Method | Manual |
Applicable Electrode | Specialized for NA-58A |
Dimensions (mm) | 24x16x157 |
Weld Cable | 1100mm |
Some welding applications don't fit well in a weld head, or require more flexibility. Hand held welding attachments allow welding of complex geometries. Also hand held attachments are less expensive than weld heads. Welding attachments are easy to use, require low maintenance, and provide a lot of flexibility for small production runs or laboratory applications. Review the information below for technical data and images of the various hand pieces available.

Hand Piece
Features:
• Opposed welding hand piece
• Accepts 3/16” electrodes
• 1 pair of RWMA II electrodes (EL187RWMA-ANG)
• Molybdenum electrodes available
• Pressure Range 0.5 – 6 lbf
• 8 AWG cabling standard

(PTHP LP) Pressure-Actuated Tweezer Hand Piece - Low Power |
|
Spring Force | 1 - 6 lbs |
Electrode Size | 3/16” |
Dimensions | .75" x 2.5" x 7" |
Weight | .56 lb / .25 kg |
CD Welder | 100 - 1000 (ws) |
AWG for CD | 8 AWG |
AC Welder (kVA) | 1.5 kVA |
AWG for kVA | 4 AWG |
Hand Piece
Features:
• Opposed welding hand piece
• Accepts 3/16” electrodes
• 1 pair of RWMA II copper electrodes
• Tungsten electrodes available
• Pressure Range 1 – 10 lbf
• 4 AWG cabling standard

(PTHP-MP) Pressure-Actuated Tweezer Hand Piece - Medium Power |
|
Spring Force | 1 - 10 lbs |
Electrode Size | 3/16” |
Dimensions | 1" x 3" x 6" |
Weight | 1.3 lb / .59 kg |
CD Welder | 100 - 1000 (ws) |
Wire AWG | 4 AWG - 1 AWG |
AC Welder (kVA) | 2.5 kVA |
AWG for kVA | 3 AWG |
Hand Piece
Features:
• Opposed welding hand piece
• Accepts 3/16” electrodes
• 1 pair of RWMA II copper electrodes
• Tungsten electrodes available
• Pressure Range 1 – 10 lbf
• 1 AWG cabling standard

(PTHP-HP) Pressure-Actuated Tweezer Hand Piece - High Power |
|
Spring Force | 1 - 10 lbs |
Electrode Size | 3/16" |
Dimensions | 1" x 3" x 6" |
Weight | 1.4 lb / .64 kg |
CD Welder | 1000 ws |
Wire AWG | 1 AWG |
AC Welder (kVA) | 5.0 kVA |
AWG for kVA | 3 AWG |
Probe Hand Piece Alligator Clip
• Pressure-actuated for repeatability
• Adjustable pressure set-point
• For hard-to-reach welds
• 1/8” RWMA II Electrode
• Large alligator clip for simple setup
• 6 AWG cabling standard

PASP - Alligator Clip | |
Spring Force | 1 -6 lbs |
Electrode Size | 1/8" |
Dimensions | 1.125" x 3.5" x 9" |
Weight | 3.35 lb / 1.5 kg |
CD Welder | 100-1000 (ws) |
Wire AWG | 6 AWG |
AC Welder (kVA) | 2.5 kVA |
Single Probe Hand Piece Magnetic
Features:
• Pressure-actuated for repeatability
• Adjustable pressure set-point
• For hard-to-reach welds
• 1/8” RWMA II Electrode
• Large magnetic clip for simple setup (iron base material)
• 6 AWG cabling standard

PASP - Magnetic Clip | |
Spring Force | 1 -6 lbs |
Electrode Size | 1/8" |
Dimensions | 1.125" x 3.5" x 9" |
Weight | 3.35 lb |
CD Welder | 300-1000 (ws) |
Wire AWG | 6 AWG - 1 AWG |
AC Welder (kVA) | 2.5 kVA |
Probe Hand Piece Honeycomb
Features:
• Pressure-actuated for repeatability
• Adjustable pressure set-point
• Honeycomb Tack Electrode (either radiused or Flat)
• Large alligator clip for simple setup
• 1 AWG cabling standard

PASP - Honeycomb | |
Electrode Size | 1/4” |
Dimensions | 1.125" x 3.5" x 9" |
Weight | 4 lbs / 1.8 kg |
CD Welder | 1000 ws |
Wire AWG | 4 AWG - 1 AWG |
AC Welder (kVA) | 5.0 kVA |
Features:
• 1/4” diameter copper shank
• 8 AWG cabling

(SPHP) Single Probe Hand Piece | |
Electrode Size | 1/4" |
Weight | 0.55 lb / 0.25 kg |
CD Welder | 200-1000 ws |
AWG for CD | 8 AWG |
AC Welder (kVA) | 1.5 kVA - 5.0 kVA |
AWG for kVA | 4 AWG |
Features:
• 1/4” diameter RWMA II copper shank
• 8 AWG cabling

(DPHP) Dual Probe Hand Piece | |
Electrode Size | 1/4" |
Weight | .65 lbs |
CD Welder | 200-1000 ws |
AWG for CD | 8 AWG |
AC Welder (kVA) | 1.5 kVA - 5.0 kVA |
AWG for kVA | 4 AWG |
• Opposed welding hand piece

(THP) Tweezer Hand Piece | |
Copper Bar Size | 1.2" x 1/16" |
Weight | .8 lbs |
CD Welder | 200-1000 ws |
AWG for CD | 8 AWG |
AC Welder (kVA) | 1.5 kVA - 5.0 kVA |
AWG for kVA | 4 AWG |
threaded electrodes.
• Easy to handle
• Conveniently placed trigger switch

PGHP - Poke Gun Hand Piece | |
Electrode Size | 3/8” |
Dimensions (W x H x L) | 1” x 3” x 6” |
Weight lb/kg | 1.3 lb / .59 kg |
CD Welder (ws) | 100 - 1000 (ws) |
Wire AWG | Wire AWG 4 AWG - 1 AWG |
AC Welder (kVA) | 2.5 kVA |
Probe Hand Piece Roll Spot
Features:
• Pressure-actuated for repeatability
• Adjustable pressure set-point
• 2” copper wheel (EL-ROLL)
• Large alligator clip for simple setup
• 1 AWG cabling standard

PASP - Roll Spot | |
Electrode Size | 1/4” Shank |
Dimensions (W x H x L) | 1.125” x 3.5” x 9” |
Weight lb/kg | 1.3 lb / .59 kg |
CD Welder (ws) | 100 - 1000 (ws) |
Wire AWG | Wire AWG 4 AWG - 1 AWG |
AC Welder (kVA) | 2.5 kVA |
SPHP LP
Features:
• 1/4” diameter brass shank
• 8 AWG cabling
• Accepts 1/16” or 2mm diameter electrode

Single Probe Hand Piece - Low Power | |
Electrode Size | 1/16” |
Weight lb/kg | 1.5 lb / 0.68 k |
CD Welder (ws) | 100 - 400 (ws) |
Wire AWG | 8 AWG |
AC Welder (kVA) | 1.5 kVA - 5.0 kVA |
SPHP MP
• 5/8” diameter brass shank
• 4 AWG cabling
• Accepts 1/8” diameter electrode

Single Probe Hand Piece - Medium Power | |
Electrode Size | 1/8” |
Weight lb/kg | 2 lb / 0.9 kg |
CD Welder (ws) | 320 - 1000 (ws) |
AWG for CD | 4 AWG |
AC Welder (kVA) | 1.5 kVA - 5.0 kVA |
SPHP HP
• 7/8” diameter brass shank
• 1 AWG cabling
• Accepts 3/16” diameter electrode

Single Probe Hand Piece - High Power | |
Electrode Size | 3/16” |
Weight lb/kg | 3.5 lb / 1.6 kg |
CD Welder (ws) | 320 - 1000 (ws) |
AWG | 1 AWG |
AC Welder (kVA) | 1.5 kVA - 5.0 kVA |
• For thermalcompression bonding
• 10 AWG cabling

Dual Probe Hand Piece - Micro | |
Electrode Size | 1/8” Shank |
Weight lb/kg | 2 lb / 1 kg |
DC Welder (ws) | DCD 320/DC-5 |
AWG | 10 AWG |
AC Welder (kVA) | 1.5 kVA - 2.5 kVA |
DPHP LP
• 1/4” diameter brass shank
• 8 AWG cabling
• Accepts 1/16” diameter electrodes

Dual Probe Hand Piece - Low Power | |
Electrode Size | 1/16” |
Weight lb/kg | 2 lbs / 0.9 kg |
CD Welder (ws) | 100 - 1000 (ws) |
Wire AWG | 8 AWG |
AC Welder (kVA) | 1.5 kVA - 5.0 kVA |
DPHP MP
• 5/8” diameter brass shank
• 4 AWG cabling
• Accepts 1/8” diameter electrodes

DPHP MP - Dual Probe Hand Piece - Medium Power | |
Electrode Size | 1/8” |
Weight lb/kg | 2 lbs / 0.9 kg |
CD Welder (ws) | 100 - 1000 (ws) |
Wire AWG | 4 AWG |
AC Welder (kVA) | 1.5 kVA - 5.0 kVA |
DPHP HP
• 7/8” diameter brass shank
• 1 AWG cabling
• Accepts 3/16” diameter electrodes

DPHP LP - Dual Probe Hand Piece - High Power | |
Electrode Size | 3/16” |
Weight lb/kg | 3 lb / 1.36 kg |
CD Welder (ws) | 100 - 1000 (ws) |
Wire AWG | 1 AWG |
AC Welder (kVA) | 1.5 kVA - 5.0 kVA |
DPHP, SPHP, & THP-A weld attachments.
• Opposed welding hand piece
• 1/4” diameter RWMA II copper shank
• 8 AWG cabling



Tweezer Hand Piece (RWMA) | |
Copper Bar Size | 1/2” x 1/16” |
Weight lb/kg | 2.5 lb / 0.36 kg |
CD Welder (ws) | 100 - 1000 (ws) |
Wire AWG | 8 AWG |
AC Welder (kVA) | 1.5 kVA - 5.0 kVA |
THP-P
• Air-actuated tweezer-style hand piece
• Force ranges: 5-50lbs
• Adjustable throat up to 1.75”
• 1” Stroke Distance
• Designed to integrate with Sunstone’s ACS
• Can use 1/8” opposed electrodes

THP P - Pneumatic Tweezer Hand Piece | |
Force | 5 - 50 lbs |
Copper Bar Size | 1/2” x 1/16” |
Weight lb/kg | 2.5 lb / 0.36 kg |
CD Welder (ws) | 100 - 1000 (ws) |
Wire AWG | 1 AWG |
AC Welder (kVA) | 1.5 kVA - 5.0 kVA |
PG5M
style="text-align: center;">The PG5M miniature pliers gun is the smallest in the
range. Designed for use in the electronics industry,
it offers a high degree of precision.
PG2W
The PG2W is a watercooled version of the PG2,
allowing use under higher duty cycle conditions.
Accepts threaded electrodes.
PG3W
Water cooled PG3 gun. Accepts compression
electrodes.
a 1/8th inch electrode.

a 3/16th inch electrode.

PG EL
(threaded) for PG2 and PG1

PG EL-Roll T

PG EL-Roll C
style.

PASP 2
Pressure-Actuated Single Probe Hand Piece
PG1
fitted with a straight or 90 degree tip and has a built
in switch. Accepts threaded electrodes.
PG1/2
The PG1/2 is the smallest single side gun. It can be
fitted with a straight or 90degree tip. Triggered with
a foot pedal. Accepts threaded electrodes.
PG4
The PG4 gun is designed as a series welder. This
gun will apply 2 spots simultaneously. Accepts
compression electrodes.