Equipment - Portable Resistance Spotwelding Guns

3300 Series Suspended Spot Welding Guns
With Microprocessor Solid State Digital Controls

CONTROL FEATURES: GUN FEATURES:
  • Simplified programming via 5 push buttons.
  • Microprocessor digital control lets you select between 2 weld schedules at the flip of a switch.
  • Modular control is built right into the gun allowing easy user maintenance and reduced installation cost.
  • 11 programmable parameters for each program.
  • Slope & pulse functions.
  • Single and automatic repeat modes.
  • Optional automatic and double stroke.
  • Compensation, allows welding of oxidized or slightly dirty or rusted sheets or rods.
  • Delay of first phase shift to allow the best balance of the machine absorbtion from the power mains.
  • Self adjustment between 50 and 60 Hertz.
  • Built-in transformer increases efficiency and reduces primary electrical demand by 50% or more.
  • Gyro-bail suspension provides 360º rotation for increased maneuverability.
  • Accepts a wide range of standard and special arms to accommodate different applications.  "C" type gun accommodates hard to access areas.
  • Supplied complete with earth leakage detector for safety control.
  • "Lubrication-free", oil-less chromium plated cylinder and shaft for heavy duty operation and long life.
OPTIONAL

  • Built in Current Meter, up to 63 welding programs.  Constant current, weld counter, stepper function.
Download TECNA Spotwelding Guns PDF >>
Model LTG3321 Model 3302 Model 3303
Model 3304 Model 3307 Model LTG3328
SPECIFICATIONS

LTG3321 

3302N

 3303N

3304N 

3307N

LTG3328
KVA RATING
at 50% duty cycle
maximum welding power

18
34

23
60.8

23
63

23
50

38
108

38
88
WELDING CAPACITY (CRS)

2x11 ga.

2x10 ga.

2x10 ga.

2x10 ga. 

2x6 ga.

2x6 ga. 
SHORT CIRCUIT SECONDARY CURRENT (AMPS) 15,900 20,000 21,000 18,000 30,000 24,500
ELECTRICAL CONNECTION
Cable sectional area for volt drop not more than 5% for 100'
Long Delay Fuse (Amps)
220
#6
50A
440
#10
25A
220
#4
40A
440
#8
30A
220
#4
60A
440
#8
30A
220
#4
60A
440
#8
30A
220
3/0
125A
440
#1
60A
220
3/0
125A
440
#1
60A
ELECTRODE FORCE AT 85 PSIG
Short Arms
Long Arms (3301 & 3302@26" 3307@47")

643 LBS.
216 LBS.

760 LBS.
259 LBS.

674 LBS.

643 LBS.
254 LBS.

1562 LBS.
351 LBS.

1562 LBS.
441 LBS.
STANDARD ELECTRODE DIAMETER
Stroke Adjustable (Short throat arms)
Clearance Stroke (min. throat and max throat)
#4RW (1MT)
0 to ¾"
0 to 2¾"
#4RW (1MT)
0 to ¾"
0 to 3"
#4RW (1MT)
NA
6.9 to 7.8"
#4RW (1MT)
0 to ¾"
0 to 4.7"
#5RW (2MT)
0 to 1"
0 to 8.8"
#5RW (2MT)
0 to 1"
0 to 6.9"
GUN ARMS
Diameter
Distance Between Arms
Maximum Throat Depth

1-7/16"
6.5"
32"

1-7/16"
6.5"
32"

1-7/16"
4¾"
7.65"

1-7/16"
8.9"
32"

1.775"
6.1"
41"

1.775"
11.0"
32"
WEIGHT WITH SHORT ARMS AND CABLES 88 LBS. 97 LBS. 104 LBS. 105 LBS. 190 LBS. 196 LBS.
WATER CONSUMPTION (gallons per minute) 1 1 1 1 1.5 1.5
DIMENSIONS L x W x H (inches) carton 12"x33½"
x22"
12"x33½"
x22"
13"x44"
x25"
13"x44"
x25"
30"x41"
x20"
30"x41"
x20"

Spotwelding Consultants Inc.

4209 Industrial
Rowlett, Texas 75088
Toll Free: 888-255-6780
Phone: 972-475-0874
Fax: 972-475-5024