TECNA 4668N Press-Type Spot Welder — 50 kVA Air-Operated Single-Phase AC

Description

The TECNA 4668N pairs a 50 kVA single-phase AC transformer with air-operated actuation in a linear-action (straight-line descent) press frame. The 4668N provides a maximum welding current of 16,500 amps, a maximum electrode force of 674 lbs, and a 19.69 in. throat depth. The vertical electrode descent suits flat-part and panel work where a fixed throat is preferred over adjustable arms. A water-cooled, epoxy-resin-coated transformer supports extended duty cycles. The standard TE101 microprocessor weld control is front-mounted for real-time parameter viewing. Within the 4665-series straight-line models, the 4665N is the 35 kVA model with a 15.75-in. throat; the 4666N raises power to 50 kVA at the same throat, while the 4667N and 4668N extend the throat to 19.69 in.

Features

• TE101 microprocessor weld control, front-mounted for real-time parameter viewing.
• Maximum welding current of 16,500 amps with maximum electrode force of 674 lbs.
• Linear-action (straight-line) vertical electrode descent with a 19.69 in. throat depth.
• Electrode stroke adjustable 0.20–3.15 in. (5–80 mm).
• Air-operated lube-free cylinder; two-stage foot switch with program #2 recall option.
• Optional Art. 4638 large-gap arm assembly for an adjustable gap of 6.69–19.69 in. (at reduced welding current).
• Optional UNITROL Soft Touch Pinch Point Safety System available.

Installation Requirements

• Electrical supply: Standard configuration 220 / 440 V / 60 Hz. Other voltages and frequencies available on request.
• Water cooling: 1.06 gpm (4 lpm) at 36 psi (2.5 bar) minimum.
• Net weight: 496 lbs. Insulation class F.

Also listed as 4668NX (US-configured version).