CD-80 Capacitor Discharge Stud Welder

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The CD-80 from Midwest Fasteners is a standard duty Capacitor Discharge Stud Welding System designed specifically for the OEM industry. This system’s solid slate design and modular construction promise dependability, versatility, portability, and long service life. The CD-80 welds materials such as mild steel, stainless steel, aluminum, and brass. The capacitor discharge process is so fast that studs can be welded to material as thin as .0 15* without burning through. What’s more, the CD-80 is powerful enough to weld fasteners from 14 gauge through 5/16* diameter weld base. It operates on standard 12 Volt AC incoming power and features step-less weld voltage control. A 220 Volt AC ‘Export’ system is also available. The unit’s solid-state circuitry means greater dependability and lower maintenance costs since moving parts are eliminated. The rugged steel chassis makes the CD-80 able to withstand typical construction job site environments. Gauges and control knobs are protected by a recessed control panel. The auto fault stud off helps guard operator safety, and the panel meter displays capacitor discharge voltage at a glance. Another safety feature, circuit breaker protection, prevents expensive repair to component parts, such as printed circuit boards. Midwest Fasteners includes an ultralight 24-ounce precision contact Gun with the CD-80. With this Contact Gun, operator fatigue is reduced, thereby increasing production. Interchangeable main spring pressure is also featured on the CD-80 contact weld gun. This feature is critical in welding aluminum fasteners and dissimilar materials and is necessary in many special welding applications.Printable Specsheet

Power Supply / Controller

Height 8-1/2″
Width 9-7/8″
Depth 18-1/2″
Weight 58 lbs.
Weld Rate Up to 20/Min.
Weldable Materials Mild Steel, Stainless Steel, Aluminum
Pin/Stud Range 14 GA, thru 5/16″ Dia. Weld Base
Weld Voltage 35-175 VDC
Capacitance 98,000 Mfd
Weld Mode Contact
Power Requirement 115 VAC, 60 Hz, 20 Amp

Weld Gun

Weight 1-1/2 lbs. (not including cable)
Size (LWH) 6-1/2″ x 2″ x 5-3/4″
Weldable Dia. 1/8″ through 5/16″ Dia.
Material High strength, impact resistance, polycarbonate


Ground Cable #1 x 15 ft. (One Each)
Gun Extension Set #1 x 18/2 x 35 ft. (Direct to Gun)


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