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TECNA 3155 Scissor-Type Weld Gun — 53 kVA Air-Operated Single-Phase AC, Separate Control

TECNA 3155 Scissor-Type Weld Gun — 53 kVA Air-Operated Single-Phase AC, Separate Control

TECNA 3155 scissor-type (X-type) suspended weld gun — 53 kVA, air-operated, single-phase AC with separate weld control. Maximum welding current of 26,000 amps and up to 1,922 lbs of electrode force at the standard arm.

Description

The TECNA 3155 is a 53 kVA single-phase AC scissor-type (X-type) suspended weld gun with air-operated actuation, built for production spot welding. It delivers a maximum welding current of 26,000 amps, with electrode force from 1,922 lbs (855 daN) on the shortest arm down to 550 lbs (245 daN) at full 40.55 in. (1030 mm) reach (8 bar). The 3155 is the separate-control version, operated by a standalone TE560 control unit (Art. 1253/1254); its built-in-control twin is the 3154.

Features

  • 53 kVA single-phase AC transformer with water-cooled, epoxy-resin-coated windings (ISO 5826).
  • Separate TE560 microprocessor weld control (Art. 1253/1254): 250 weld programs, constant-current mode, pre-weld/slope/pulse/post-weld functions.
  • Gyro suspension on sealed bearings with rotation lock for accurate maneuverability with a TECNA balancer.
  • Long 10.04–40.55 in. (255–1030 mm) arm range; adjustable working stroke plus temporary extra (retraction) stroke for hard-to-reach welds.
  • Fully water-cooled copper secondary; lube-free chromium-plated cylinder and shaft; cooling-circuit valves for easy electrode changes.
  • Supplied with earth-leakage switch (30 mA); ground-fault unit available on request.
  • Recommended balancer: TECNA 9414.

Installation Requirements

  • US stock supply: 440 V / 60 Hz (400 V / 50 Hz on request).
  • Delayed fuses 100 A; cable section 0.04 in² (25 mm²) at L=30 m.
  • Compressed air: 116 psi (8 bar); consumption 5/11 Nm³ per 1000 spots (short/long stroke).
  • Water cooling: 127 gal/h (480 l/h).
  • Net weight 172 lbs (78 kg) with cables, hoses, and suspension, without arms.

Additional information

Weight 172 lbs
Gun Type

Scissor-Type (X-Type)
Arm Configuration

LG
Control Type

Separate
Standard Control Unit

TE560 (Art. 1253/1254)
Nominal Power 50% (kVA)

53
Max Welding Power (kVA)

147
Max Short Circuit Current (kA)

26
Thermal Current 100% (A)

5300
No-Load Secondary Voltage (V)

7.1
Supply

440 V / 60 Hz (US stock; 400 V / 50 Hz on request)
Mains Cable (L=30m, 400 V)

0.04 in² (25 mm²)
Delayed Fuses (400 V)

100 A
Arms Centerline

8.62 in (219 mm)
Insulated Arms Connection Ø

1.85 in (47 mm)
Non-Insulated Arms Conn. Ø

1.93 in (49 mm)
Gyro Suspension Ø

11.58 in (294 mm)
Arm Length Range

10.04–40.55 in (255–1030 mm)
Max Electrode Force

1922 lbs (855 daN)
Max Elec Force 8 bar (Min Arm)

1922 lbs (855 daN)
Max Elec Force 8 bar (Max Arm)

550 lbs (245 daN)
Working Stroke

0.20–0.79 in (5–20 mm) min arm; 0.20–2.36 in (5–60 mm) max arm
Max Stroke

1.97–2.76 in (50–70 mm) min arm; 7.09–9.84 in (180–250 mm) max arm
Compressed Air

116 psi (8 bar)
Air Consump /1000 (Short)

5 Nm³
Air Consump /1000 (Long)

11 Nm³
Air Supply Hose Ø

0.51 in (13 mm)
Water Cooling Flow

127 gal/h (480 l/h)
Max Weldable Ø

0.71 in (18 mm)
Max Steel Thickness (Min Arm)

0.16 + 0.16 in (4 + 4 mm)
Power Supply

Actuator Type

Product Type

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