tecna

PORTABLE SPOT WELDERS-ITEM 7900-7902 เครื่องเชื่อมสปอร์ทแบบมือถือ



Technical Specification

Item

7900 (k)* 7902
Synchronous timer with SCR    
Time adjustment     2-65 2-65
Currentadjustment 40-100%     - -

Cooling

    Air Air
Supply voltage 50Hz   V 400 400
Nominal power at 50%   KVA 2.0 2.5
Maximum welding power   KVA 13 10
Short circuit current   KA 7.2 8.2
With arms L=   mm 125 125
Thermal current 100%     610 700
No load secondary voltage     2.3 2.5
Insulation class     F F
Cables section for L-15m   mm2 2.5 2.5
Delayed fuses   A 16 16
Standard arms throat depth L   mm 125 125
Max. electrode forde    daN 120 120
With arms L=   mm 150 125
Arms gap   mm 96 94
  Max. electrodes stroke mm 55 55
  With arms L= mm 125 125
Watercooling   l/min 25 3.7
Water max. pressure   bar - -
Aerial noise produced   dB(A) <70 <70
Level of vibrations   m/s2 <2.5 <2.5
Measure conditions        
  Welding time cycles 14 14
  Welding current kA 5 5
  Wording rating in welds/min   2 2
Mains cables length   m 3.8 3.8
Net weight with arms 125mm   kg 10.5 11
Net weight with arms 155mm   kg - -
Net weight with arms 500mm   kg 13 13.5
เชื่อมแผ่นเหล็กได้หนา   mm 2+2 2.5+2.5
เหล็กกลมขนาด   mm 6+6 8+8
Price   baht 52,000.- 56,000.-

 Indicative performances 7900 (K)

Arm length

mm.

Max. force at electrodes daN

Electrode stroke

mm.

Max. thickness on mild steel mm.
125 120 55 2+2
250 70 105 1.8+1.8
350 50 135 1.5+1.5
500 38 185 1.2+1.2

 

Thickness

mm.

Spots/hour • Electrode tip
mm.
0.6+0.6 540 3.5
0.8+0.8 380 4
1+1 300 4.5
1.2+1.2 260 4.5
1.5+1.5 120 5
1.8+1.8 100 5.5
2+2 60 6
6+6 200 -

 Indicative performances 7902

 

Arm length

mm.

Max. force at electrodes daN

Electrode stroke

mm.

Max. thickness on mild steel mm.
125 120 55 2.5+2.5
250 70 90 1.8+1.8
350 50 135 1.5+1.5
500 40 190 1.2+1.2

 

Thickness

mm.

Spots/hour • Electrode tip
mm.
0.8+0.8 380 4
1+1 300 4.5
1.2+1.2 260 4.5
1.5+1.5 140 5
1.8+1.8 110 5.5
2+2 70 6
6+6 300 -
8+8 200 -