PROVIDING YOU WITH FINE RESISTANCE SPOT WELDING EQUIPMENT, RENTALS, ELECTRODES, AND SUPPORT FOR YOUR SPOT WELDING PROJECT.
Advanced Integrated Technologies ( AIT ) is a resistance welding equipment and technical support provider for Nippon Avionics ( Avio ) brand of resistance spot welders and accessories as well as Sunstone brand spot 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.
High precision resistance welders and electrodes
Lower prices on equipment and electrodes than other manufacturers
Shorter lead time on electrodes
Custom welding solutions and unparalleled customer support
Opposed Weld Head Illustration | Parallel / Series Weld Head Illustration | ||||||||||||||||||
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Power Supplies
Opposed Heads

Features | Opposed Type |
NA-121 | |
Pressure Range (N) | 0.7 - 5 |
Dimension (mm) | 74x48x285 |
Weight (kg) | 0.6 |
Drive Method | motor, air, manual |

Features | Opposed Type |
NA-122 | |
Pressure Range (N) | 6 - 65 |
Dimension (mm) | 82x50x301 |
Weight (kg) | 0.8 |
Drive Method | motor, air, manual |

Features | Opposed Type |
NA-123 | |
Pressure Range (N) | 20 - 150 |
Dimension (mm) | 82x50x301 |
Weight (kg) | 0.8 |
Drive Method | motor, air, manual |

Features | Opposed Type |
NA-124 | |
Pressure Range (N) | 40 - 300 |
Dimension (mm) | 98x56x326 |
Weight (kg) | 1.5 |
Drive Method | air |

Features | Opposed Type |
NA-125 | |
Pressure Range (N) | 100 - 600 |
Dimension (mm) | 212x204x75 |
Weight (kg) | 21.5 |
Drive Method | EH-F-02 Shown |
Parallel Heads

Parallel Gap Type | ||
Features | NA-131 | |
Pressure Range (N) | 0.7 - 5 | |
Dimension (mm) | 76x51x299 | |
Weight (kg) | 0.7 | |
Drive Method | motor,air, manual |

Parallel Gap Type | ||
Features | NA-132 | |
Pressure Range (N) | 5 - 65 | |
Dimension (mm) | 76x51x299 | |
Weight (kg) | 0.7 | |
Drive Method | motor,air, manual |

Series Type | |||
Features | NA-141 | NA-142 | |
Pressure Range (N) | 0.5 - 5 | 5 - 65 | |
Dimension (mm) | 136x50x268 | 153x50x268 | |
Weight (kg) | 1.3 | 1.6 | |
Drive Method | motor,air, manual | motor,air, manual |

Series Type | |||
Features | NA-143 | ||
Pressure Range (N) | 40 - 150 | ||
Dimension (mm) | 175x62x302 | ||
Weight (kg) | 2.7 | ||
Drive Method | motor,air, manual |
Monolithic Heads

Features | NA-60A |
Pressure Range (N) | 9.8-132.3 |
Dimension (mm) | 72x175x285 |
Weight (kg) | 2.8 |
Driving Method | foot, air |
Electrode Diameter (mm) | 6.4/3.2 |
Pocket Depth Dimension | 98mm |
Electrode Stroke | 12mm Max |

Features | NA-72 |
Pressure Range (N) | 98-588 |
Dimension (mm) | 107x240x615 |
Weight (kg) | 19 |
Driving Method | air |
Electrode Diameter (mm) | 10 |
Pocket Depth Dimension | 160mm |
Electrode Stroke | 30mm Max |

Features | NA-43 |
Pressure Range (N) | 88.2-294 |
Dimension (mm) | 248x240x319 |
Weight (kg) | 11 |
Driving Method | air |
Electrode Diameter (mm) | 6.4 |
Pocket Depth Dimension | - |
Electrode Stroke | 12mm Max |
Hand Piece Welders

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 |
Weld Head Drive Units
- It's equiped with a soft landing and teaching function.
- 5 operating speeds.
- Operation position can be set by 4 points.
- Timing of weld confirmed by LED



Features | NA-201+CNT-310 |
Dimensions NA-201 (mm) | 50x82.5x320 |
Dimensions CNT-310 (mm) | 80x211x188 |
Weight | NA-201: 2kg; CNT-310: 2kg |
Drive Method | Pulse Motor |
Stroke | 50mm Max, 10 μm Step |
Power Source |
DC 24V±10% 2A, Optional: AC Adaptor AC100-240V |

Features | NA-221 | NA-222 |
Dimensions (mm) | 78x63x280 | 86x85x289 |
Weight | 1.3 kg | 2.2 kg |
Drive Method | Air | Air |
Stroke | 50mm Max | 50mm Max |
Speed Control | with speed controller - (Φ4mm tube) | with speed controller - (Φ6mm tube) |
Air Pressure | 0.05-0.6MPa | 0.4-0.6MPa |

Features | NA-231 |
Dimensions (mm) | Drive Part: 51x79x192; Foot Pedal: 124x268x125 |
Weight | Drive Part: 1kg; Foot Pedal: 2.2kg |
Drive Method | Manual by Foot Pedal |
Stroke | 10mm Max |
Height Control | 40 mm Range |
Electrode Holders


Upper Electrode Accessory |
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Head | Electrode Clamping Diameter | Type | Holder/Horn | Clamp |
NA-121 |
.0625" / 1.6mm | Straight | S121-16THD | - |
Shift | S121-16HORN | S121-CLMP | ||
.125" / 3.2mm | Straight | S121-32THD | - | |
Shift | S121-32HORN | S121-CLMP | ||
NA-122 |
.125" / 3.2mm | Straight | S122-32THD | - |
Shift | S122-32HORN | S122-CLMP | ||
.250" / 6.4mm | Straight | S122-64THD | - | |
Shift | S122-64HORN | S122-CLMP | ||
NA-124 |
.250" / 6.4mm | Straight | S124-64THD | - |
8mm | Straight | S124-80THD | - |
Lower Electrode Accessory | ||||
Head | ;Electrode Clamping Diameter | Type | Holder/Horn | Holder Base/Clamp |
NA-121 | .0625" / 1.6mm | Straight | S12X-16BHD | 12X-B-F |
Shift | S12X-16BHORN | 12X- BS | ||
.125" / 3.2mm | Straight | S12X-32BHD | 12X-B-F | |
Shift | S12X-32BHORN | 12X-BS | ||
NA-122 | .125" / 3.2mm | Straight | S12X-32BHD | 12X-B-F |
Shift | S12X-32BHORN | 12X-BS | ||
.250" / 6.4mm | Straight | S12X-64BHD | 12X-B-F | |
Shift | S12X-64BHORN | 12X-BS | ||
NA-124 | .250" / 6.4mm | Straight | S12X-64BHD | 124-B-F |
8mm | Straight | S12X-80BHD | 124-B-F |
Lower Holder Accessory |
Lower Holder & Lower Holder Base |
S12X-16BHD & 12X-B-F |
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Accessories




Welding Monitors
High Reliability for QC
- Digital or Graphic Display Options
- Easy Automation When Combined with System Head
- Easy QC by Enhanced Communication Function (Output of Measured Value m& Monitoring Result)
- Easy Installation of Force Sensor
- High Accuracy for Displacement Welding
- Wave Analysis by Graphic Display (High Speed Sampling at 2000 times/sec)
- Measure and Judge by 2 Conditions for Welding
- Trigger by Applied Force or Displacement Setting

Features | QC-100 | |
Measurement Range | 0-1000N | |
Accuracy | ±3%(of full scale) | |
Sampling Time | 0.5ms(2000 times/sec) | |
Squeeze, Hold Time | 0-0.9sec | |
Interface | RS-232C, I/O, analog output | |
Power Source | DC24V ± 10% 2A | |
Dimension (mm) | 170x210x150 | |
Weight | 3kg |

Features | QC-200 | |
Measurement Range | 0-7.5mm Resolution: 1μm | |
Accuracy | ±1%(of full scale) | |
Sampling Time | 0.5ms(2000 times/sec) | |
Squeeze, Hold Time | 0-0.9sec | |
Interface | RS-232C, I/O, analog output | |
Power Source | DC24V ± 10% 2A | |
Dimension (mm) | 170x210x150 | |
Weight | 3.4kg |
Features | TJS-1R | TJS-20R | TJS-100R |
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Measurement Range (N) | 0-10 | 0-196 | 0-980 | |
Critical Load (N) | 20 | 294 | 1470 | |
Accuracy | ±3%(of full scale) |
Monitoring of Welding Current





Features | Specifications |
Type | QC-440 |
Wave Form | Single AC Type, Capacitor Type, Inverter Type, Transistor Type |
Current | 0.50-45.0KA |
Time | 0.5-99.5cycle (0.5cycle step) 1-199msec (capacitor mode 1ms Step) |
Displacement | Measurement Range -99.99-99.99mm or -9.999-9.999mm |
Accuracy | Current±2% (F.S) Time±0% |
Judgment Items |
Current: over, under (3digits) Time: over, under (Cycle: 2digits msec: 3digits) Displacement: over, under (4digits) *With GOOD or NG Signal Output Function |
Display Items | Chanel, Current Value(A/B), Analog Input |
Number of Monitoring Condition | 2*99 Channels |
Data Storage Capacity | 2000 Shoots |
Counter | 0-99999 |
Interface | RS-485-complaint |
Printer | Interval Printing Function/Memory Printing Function |
Toroidal-coil | Sensitivity: x1(Option), x10 (Option) |
Power Consumption | 80VA |
Power Source | AC100-240V±10% 50/60Hz |
Dimensions (mm) | 141x303x344 |
Weight | 4.5kg |
Digital Force Gauges
- Compact and Light Weight
- 3 Way Power Supply
- Equipped with Hold Display Function
- Easy Zero Adjustment Function
- Equipped with Judgment Function (Hi&Low)

Features |
FG-400 |
Display | 4 digit (0000-9999) N: newton |
Zeroing Adjustment | Automatic Regulation by Switching |
Hold Function | Sample/Peak |
Interface | RS-232C |
Power Source | (AC100V-240V)1Φ Use by AA type battery, Ni-H type battery or Dedicated AC adapter (AC100V-240V) |
Dimension (mm) | 77x140x27 |
Weight | 300g |
Features |
TJ-1A |
TJ-20R or TJ-20A |
TJ-100R or TJ-100A |
TJ-500R or TJ-500A |
Measuring Range (N) | 0-10 | 0-196 | 0-980 | 0-4900 |
Critical Load (N) | 20 | 294 | 1470 | 7350 |
Accuracy | ±2% (of full scale) |

Pressure Sensor |
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Features | TJS-1R | TJS-20R | TJS-100R | ![]() |
Measuring Range (N) | 0-10 | 0-196 | 0-980 | |
Critical Load (N) | 20 | 294 | 1470 | |
Accuracy | ±3% (of full scale) |