TECNA 4642N Rocker Arm Spot Welder — 20 kVA Foot-Operated Single-Phase AC

TECNA 4642N rocker arm spot welder — 20 kVA, foot-operated, single-phase AC. Maximum welding current of 9,600 amps, maximum electrode force of 337 lbs, and maximum throat depth of 27.56 in. with adjustable arms, stroke, and throat. Te101 microprocessor control.

Description

The TECNA 4642N pairs a 20 kVA single-phase AC transformer with mechanical foot-pedal actuation. The 4642N provides a maximum welding current of 9,600 amps, a maximum electrode force of 337 lbs, and a maximum throat depth of 27.56 in. Arm length, electrode stroke, and throat depth are all independently adjustable to accommodate varied part geometries. 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 4640-series, the 4642N shares the 20 kVA rating of the 4641N but extends maximum throat depth from 21.65 in. to 27.56 in., providing additional reach for larger sheet metal assemblies without stepping up to the higher-power 4644N.

Features

  • TE101 microprocessor weld control, front-mounted for real-time parameter viewing.
  • Maximum welding current of 9,600 amps with maximum electrode force of 337 lbs.
  • Chromium-copper electrode holders, mountable at 12° and 90° positions in the arm.
  • Mechanical foot-pedal actuation; additional foot pedal (optional) for program #2 recall.
  • Adjustable arm length, adjustable electrode stroke, and adjustable throat depth up to 27.56 in.
  • Optional UNITROL Soft Touch Pinch Point Safety System available.

Installation Requirements

  • Electrical supply: Standard configuration: 220 / 440 V at 60 Hz. Other voltages and frequencies available on request.
  • Water cooling: specification available on request.
  • Net weight: 322 lbs. Insulation class F.

Additional information

Weight 322 lbs
Configuration

Rocker Arm Spot

Adjustable Arm Depth

Yes

Nominal Power 50% (kVA)

20

Max Welding Power (kVA)

39

No-Load Secondary Voltage (V)

4

Max Welding Current (A)

12000

Max Weld Curr Steel (kA)

9.6

Thermal Current 100% (A)

3500

Supply

220 / 440 V / 60 Hz

Delayed Fuses (220 V)

80 A

Delayed Fuses (440 V)

40 A

Mains Cable (≤30m, 220–440 V)

0.02 in² (10 mm²)

Insulation Class

F

Min Throat Depth

14.96 in. (380 mm)

Max Electrode Force

337 lbs (150 daN)

Max Elec Force (Min Depth)

337 lbs (150 daN)

Electrode Stroke (Min Depth)

0.39–2.36 in. (10–60 mm)

Max Throat Depth

27.56 in. (700 mm)

Max Elec Force (Max Depth)

179 lbs (80 daN)

Electrode Stroke (Max Depth)

0.59–4.13 in. (15–105 mm)

SC Current @ Max Arm Len (kA)

8.8

Water Cooling Flow

0.79 gpm (3 lpm)

Min Water Pressure

36 psi (2.5 bar)

Aerial Noise

<70 dB(A)

Arm Ø

1.57 in. (40 mm)

Electrode-Holder Ø

0.87 in. (22 mm)

Electrode Taper Ø

0.58 in. (14.8 mm)

Electrode Taper Standard

4RW/1MT

Power Supply

Actuator Type

Product Type