TECNA TE4666NX – Press-Type Spot Welder

IN-STOCK | 50 kVA | Air-Operated | Single-Phase AC

MODEL: TE4666NX Press-Type Spot Welder

The TECNA TE4666NX is a 50 kVA, air-operated, single-phase AC press-type spot welder. The TE4666NX features water-cooled arms, electrodes, and electrode holders. The mounted TE101 control unit has been positioned to allow the operator to view welding data even during the working cycle. The pneumatic commands and the compressed air pressure gauge have been placed at the top for easier adjustment and reading.

  • Model: TECNA TE4666NX
  • Power @ 50% duty cycle:  50 kVA
  • Power supply:  Single-phase AC
  • Max. weld current: 17,000 amps
  • Max. weld force: 1,056 lbs.
  • Max. electrode throat depth: 15.75 in.

Current IN-STOCK Inventory: 5

* TYPICALLY IN-STOCK model at WSI, a stocking master distributor of TECNA industrial resistance welders. We maintain an inventory at our Warrensville Heights, Ohio, location. Please reach out to our knowledgeable sales team at 844-WSI-WELD or 216-475-5629 for current availability.

Welder ParametersFull SpecificationsFeaturesDocumentationVideoQuote Request
MODEL TE4666NX
Welder style: Press welder
Work type: Production
Welding type: Spot, nut, stud or fastener welding
Power @ 50% duty cycle: 50 kVA
Power supply: Single-phase AC
Max. weld current: 17,000 amps
Max. weld force: 1,056 lbs.
Electrode throat depth: Fixed – 15″
Standard controls: TE101
WELDABLE MATERIAL THICKNESS > Cold rolled steel: 14-gauge and thinner
> Galvanized steel: 14-gauge and thinner
> Stainless steel: 18-gauge and thinner
> Aluminum: Not Recommended
Power requirements: 220 VAC, 125 amps
440 VAC, 70 amps
Min. compressed air supply: 80 PSI, clean and dry air
Water cooling required: YES, not included
ACCESSORIES > Cooling: Dynaflux R1100 V/G
> Safety: UNITROL Soft-Touch Safety System
> Arms: Drop arm assembly
SPECIFICATIONUNITS4665N4666NX4667NX4668N
Power @ 50% duty cyclekVA35503550
Max powerkVA67846482
No-load secondary voltageV5.4-46.15.4-46.1
Short circuit currentA15,50017,00014,50016,500
Thermal current @ 100%kA4.55.74.55.7
Supply voltage (@60Hz)*V220 or 440Dual Voltage 220 / 440220 or 440220 or 440
Delayed fuses @ 230VACA125125175175
Delayed fuses @ 440VACA7070100100
Primary cables (up to 30m)in2 (mm2)0.03 (16)0.05 (35)0.03 (16)0.05 (35)
Insulation classFFFFF
Compressed air supplypsi (bar)94 (6.5)94 (6.5)94 (6.5)94 (6.5)
Air consumption per 1000 Spots @ 94 psi (650kP / 6.5 bar)SCF (N/m3)191-60 (5.4-1.7)191-60 (5.4-1.7)191-60 (5.4-1.7)191-60 (5.4-1.7)
Arm minimum lengthin (mm)15.7 (400)15.7 (400)19.7 (500)19.7 (500)
Max electrode force @ 94 psi (6.5 bar)lbs. (daN)1034 (470)1034 (470)660 (300)660 (300)
Working strokein (mm)0.2 - 3.2 (5 - 80)0.2 - 3.2 (5 - 80)0.2 - 3.2 (5 - 80)0.2 - 3.2 (5 - 80)
Arm maximum lengthin (mm)----
Max electrode force @ 94 psi (6.5 bar)lbs. (daN)----
Working strokein (mm)----
Short circuit current with arms @ max lengthkA----
Adjustable arm gap assembly (OPTION 4638)
Short circuit current with arms @ max gapkA--1012.1
Minimum gapin (mm)--6.7 (170)6.7 (170)
Maximum gapin (mm)--19.7 (500)19.7 (500)
Water cooling @ 36 psi (250 kP / 2.5 bar)gpm (lpm)1.1 (4)1.1 (4)1.1 (4)1.1 (4)
Minimum water pressurepsi (bar)36 (2.5)36 (2.5)36 (2.5)36 (2.5)
Aerial noise produceddB(A)70+70+70+70+
Measured condition
Working strokein (mm)20202020
Welding timeCycles17232024
Welding currentkA11.612.710.912.4
Working rating (welds per minute)#/min15151515
Net weightlbs (kg)484 (220)495 (225)484 (220)495 (225)
Armsin (mm)1.97 (50)1.97 (50)1.97 (50)1.97 (50)
Electrode holdersin (mm)0.98 (25)0.98 (25)0.98 (25)0.98 (25)
Electrode taper size5RW/2MT5RW/2MT5RW/2MT5RW/2MT
* Different voltages and frequencies on request. Specifications are subject to change without notice.
  • Air-operated, lube-free cylinder eliminates oil mist in the shop environment.
  • Electrode force is adjustable via an integrated filter/regulator combination.
  • Reduce shop noise with integrated speed control valves, shock absorber for end of cylinder stroke, and air exhaust mufflers.
  • Two-stage electronic foot switch initiation (1st stage closes tips without welding, 2nd stage initiates weld schedule.)
  • Pre-wired to accept a second footswitch (Option 72977).
  • A second footswitch allows for immediate recall of a second weld time / current setting. This is helpful when different settings are required on the same workpiece.
  • PINCH POINT SAFETY OPTION: WSI-supplied TECNA Rocker Arm Welders are available with UNITROL Soft Touch Safety for pinch point protection.

TECNA 50 kVA Press and Rocker Welder Catalog

* Download the TECNA 4662, 4666 catalog ( PDF )

TECNA 4660 – 4668 Installation Manual

* Download the TECNA 4660, 4661, 4662, 4663, 4665, 4666, 4667, 4668 installation manual ( PDF )

Please submit the following form to request additional information.

Enter “TECNA-TE4666NX” on the following quote request form.

If you have any questions on WSI Select – IN-STOCK equipment available from Weld Systems Integrators, please call 844-WSI-WELD or 216-475-5629 and ask to speak with a WSI Engineer.

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