Being a relative simplicity spot welding can soon become complex due several factors, starting by the specificity of the part itself, its design, the welding strength and aspect required, and the production cycle time expected. the machines can be:

  • AC or MFDC for the welding current.
  • Servo (equipped with force sensor for force control and monitoring) or Pneumatic for the welding force for the Omega, P, and MOS series.
  • Several options are available

ARO's Stationary Spot Welding Machines

OMEGA

Spot & Projection Welding
20kA DC / 15kA AC
120daN Pneumatic / 120daN Servo

N Series

Spot Welding
15kA
200daN Pneumatic

M Series

Spot & Projection Welding
35kA
970daN Pneumatic

MOS Series 100kA DC

Spot welding
55kA DC
Servo 2000 daN

P Series

Projection, Spot, Seam & Butt Welding
55kA DC / 85kA AC
1400daN Pneumatic / Servo

Technical Comparison

Type Omega N MOS III MA PA
Application Spot Welding Spot Welding Spot Welding Spot Welding Spot Welding
Technology MFDC / AC AC MFDC MFDC / AC MFDC / AC
Actuator Servo / Pneumatic Pneumatic Servo Pneumatic Servo / Pneumatic
Max. force 120 daN 200 daN 2000 daN 730 daN 740 daN
Max. Current 20 kA 45 kA 55 kA 30kA 40 kA