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Servo Motor Driven Weld Head - 70 Series

Designed for use in automation or benchtop welding, AMADA WELD TECH's 70 Series Weld heads offer stable, repeatable electrode force for a wide range of resistance welding applications. Two different models are available, each equipped with an easy-to-program, state-of-the-art servo motor controller which allows the electrode positions to be precisely programmed and a speed of up to 32 different weld schedules.

 

 

Key features Servo Motor Driven Weld Head - 70 Series

  • Write and save up to 32 motion schedules
  • “Soft-touch” part clamping minimizes impact force and allows verification of part alignment prior to welding
  • Fast follow-up means less weld splash and more consistent welds
  • Individual speed control for “stroke to search” and “search to weld” increases flexibility and throughput; good for automation
  • Overforce protection ensures concise repeatable force, less weld splash, and reduced part deformation
  • Constant applied force - independent of part height - ensures weld repeatability
  • Easy programming and fast, efficient schedule adjustment

Servo Motor Driven Weld Heads

Programmable electrode positions – accurate to .004 in

  • “Home” position allows for easy access during maintenance
  • Electrode in the “Upstop” position in the “Ready” state
  • The first level of the footswitch moves the electrode down to the “Search” position at a programmable “Soft-touch” speed
  • The second level of the footswitch applies the pre-set welding force, with no overforce
  • Programmable “Downstop” inhibits welding if parts are not present

 

 

Model number Model 71Model 72
Head type OpposedParallel
Force range 0.25 – 8 lbs.*0.25 – 8 lbs.* per electrode
Weld force method Spring force settingSpring force setting
Actuation method Servo motor Servo motor
Electrode stroke 1.5 in max. (.004 in steps)1.5 in max. (.004 in steps)
Throat depth inches 48
Number of schedules 32 (selectable externally) 32 (selectable externally)
Electrode speed Start point – Mid point – 8 speeds adjustable by schedule (20-300 mm/s) Mid point – Welding point – 4 speeds adjustable by schedule (7.5-30 mm/s) 8 settings (100, 200, 300, 400, 500, 1000, and 2000 ms, external END signal)Start point – Mid point – 8 speeds adjustable by schedule (20-300 mm/s) Mid point – Welding point – 4 speeds adjustable by schedule (7.5-30 mm/s) 8 settings (100, 200, 300, 400, 500, 1000, and 2000 ms, external END signal)
Power supply 100 - 220 VAC 50/60 Hz100 - 220 VAC 50/60 Hz
Welding current 3000 amps @ 2% DC3000 amps @ 2% DC
Model number Model 71Model 72Controller
Dimensions (LxWxH) 216 mm x 80 mm x 300 mm (8.5 in x 3.14 in x 11.8 in)404 mm x 120 mm x 270 mm (15.9 in x 4.7 in x 10.6 in)243.8 mm x 63.5 mm x 154.9 mm (9.6 in x 2.5 in x 6.1 in)
Weight 7.7 lbs (3.5 kg)16 lbs (7.3 kg6.6 lbs (3 kg)
Solar cell
Pacemaker interconnects
0.002 in diameter magnet wire to gold pad

Customized Solutions

Send your sample to one of our technology centers in Europe for an evaluation. We will then determine which solution meets your needs best. AMADA WELD TECH offers feasibility testing and application consulting.

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