Pneumatic spot welding machine

I Features:

• l Main circuit adopts large power water-cooling SCR non-contactor switch, and so the output current is more stable
• l Equipped with PLC to assure firm and reliable welding spot
• l Can both single-spot weld and continuous-spot weld.
• II Technical data：
  

  Model Item	DN-35	DN-50	DN-63	DN-75	DN-100
  Rated power KVA	35	50	63	75	100
  Voltage V	380	380	380	680	380
  Phase	Single	Single	Single	Single	Single
  Frequency Hz	50	50	50	50	50
  Rated input current A	98	132	166	175	263
  No-load voltage V	0.85-4.75	1.06-5.93	1.12-6.33	1.12-7.03	1.46-7.45
  Load duration factor %	35	40	40	50	50
  Welding thickness mm	3+3	3.5+3.5	4+4	4.5+4.5	5+5
  Arm length mm	390	440	440	445	445
  Distance between stroke mm	220	290	290	290	290
  Max. pressure KN	4.7	5.2	5.2	6.3	6.3
  Stroke of top electrode mm	80	80	80	80	80
  Working stroke of top electrode mm	20	25	25	25	30
  The highest frequency of top electrode action/min	≥85	≥75	≥75	≥65	≥65
  Pressure of compressed air Mpa	≤0.4	≤0.5	≤0.5	≤0.05	≤0.55
  Cooling water L/h	300	620	620	700	720
  Working procedure delay range S	0.02-1.98	0.02-1.98	0.02-1.98	0.02-1.98	0.02-1.98