70 Series - Servo Motor Driven Weld Head
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 70 Series - Servo Motor Driven Weld Head
- 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
Specifications 70 Series - Servo Motor Driven Weld Head
Model number | Model 71 | Model 72 | |
---|---|---|---|
Head type | Opposed | Parallel | |
Force range | 0.25 – 8 lbs.* | 0.25 – 8 lbs.* per electrode | |
Weld force method | Spring force setting | Spring 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 | 4 | 8 | |
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 Hz | 100 - 220 VAC 50/60 Hz | |
Welding current | 3000 amps @ 2% DC | 3000 amps @ 2% DC | |
Model number | Model 71 | Model 72 | Controller |
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 kg | 6.6 lbs (3 kg) |
Product applications 70 Series - Servo Motor Driven Weld Head
Solar cell
Pacemaker interconnects
0.002 in diameter magnet wire to gold pad