A 230 V single-phase capacitor discharge (CD) stud welding machine for fixing small studs and pins to thin metal.

The Ralli Wolf CD208 is a capacitor discharge stud welder for fast, clean stud fixing in sheet metal fabrication. In capacitor discharge stud welding, a capacitor or bank of capacitors is charged to a set voltage, and the weld is made by discharging the capacitor across the contact between the stud and the workpiece. This type of stud welding is used to a large degree for smaller studs, and particularly for studs on thin metal members. It suits thin gauge parent materials that are flat and clean, giving strong welds with minimal marking. The weld is made from one side, so there is no drilling, tapping, or rivet on the back of the panel. The 230 V AC supply means it runs from a normal workshop socket. It is made for sheet metal fabricators, appliance and enclosure makers, nameplate and bracket fixing, and workshops that need a neat fastening method.

Key Features

Capacitor discharge process: very short weld time, with little heat on the workpiece
Minimal marking on the back of thin sheet
230 V AC supply: runs from a normal single-phase workshop supply
No drilling, tapping, or rivets needed
Suited to small studs and pins on thin, flat, clean metal
Compact machine for workshop use

Application

Welding studs and pins onto thin sheet metal
Fixing brackets, handles, and nameplates on appliances and enclosures
Panel, cabinet, and switchgear manufacturing
Kitchen equipment and stainless steel fabrication
Automotive and light fabrication work
Production lines needing quick, repeatable stud fixing

TECHNICAL SPECIFICATION

Specification	Value
Model	CD208
Technology	Enhanced Flash Micro Controller Technology
Welding	M3–M8 with Mild Steel, Stainless Steel, Aluminium, and Brass
Range	3mm–8mm
Welding Method	Tip Ignition
Power Source	Capacitor Bank
Charging Capacity	75,000 UF
Charging Voltage	45–200V DC Settable
Welding Time	0.001–0.003 sec
Welding Output	Up to 20–25 studs/min, depending on stud diameter
Input Supply	230V AC Power, 500 VA, Fuse 3, 20 AMP
Connected Cable	3 Mtr + Earthing Cable 3 Mtr
Dimensions	15" x 11" x 9" inch (L x W x H)
Net Weight	19 kg

Safety Note: For use by trained operators only. Wear eye protection, gloves, and flame-resistant clothing, and keep the work area free of flammable material. Connect to a correctly earthed 230 V supply. The machine stores charge in capacitors, so switch it off and let it discharge before opening or servicing it. Keep people with pacemakers away from the welding circuit

Ralli Wolf CD208 Capacitor Discharge Stud Welding Machine, 230V AC, for Welding Studs on Thin Sheet Metal Without Marking the Back

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