Nelson ALPHA 850 - Page 15

1 Introduction Page 10
Stud welding unit operating manual Date: July 2021
ALPHA 850 07.2021 / EN Rev.: A
• Stud (types and dimensions):
SC stud for short cycle drawn arc process:
SC stud (type)
Shaft Ø / weld Ø
Threaded stud (SC - B) M3 - M8 / 4 mm - 9 mm
Stud bolt (SC - S) 3 mm - 9 mm
Internally threaded socket (SC
- I)
M3 - M5 / 7 mm - 9 mm
Sawtooth stud (SC - Z) M3 - M8 / 4 mm - 9 mm
DA stud for drawn arc process:
DA stud (type)
Shaft Ø / weld Ø
Threaded stud (MP, MPF) M6 - M12 / 5.3 mm - 10.8 mm
Threaded stud (M, MD) M8 - M12 / 6 mm - 12 mm
Threaded stud (MR) M6 - M12 / 4.7 mm - 9.5 mm
Stud bolt (SC - S) 3 mm - 12 mm
Internally threaded socket (MI) M4 - M8 / 10 mm - 12 mm
Head bolt (KB) ≤ 10 mm