TWi-250

1/4″ Capacitor Discharge System

The TW-i series of capacitor discharge stud welders incorporates the latest solid state technology into a compact, light-weight, and rugged CD stud welder. This full line of equipment is capable of welding pins, cup head pins, and CD studs ranging from 14-gauge up to 1/4” full-flanged stainless steel studs.

TW-i 250 Manual

TWi Flyer

Features/Included

Intuitive Touchscreen Interface with Preset values for fast, accurate, and repeatable weld settings
Set-Point Discharge: Unit discharges directly to a new set point without needing to discharge completely
Universal Input Voltage: Plug and play, no need to re-tap the machine for 110V or 220V input voltages
Low input voltage capability enables operation with long extension cords
Contact and Trigger Indicators for fast troubleshooting of hand tool and weld cable maintenance issues
Thermal and Voltage protection indicators to protect the unit from damage due to overheating or poor input power
Terminal connections on capacitors have 1/4-20 socket set screws inserted into each one. The socket set screw is used to make the connection to the buss bars. This eliminates damaging the threads in the aluminum connections of the capacitor, assuring a solid contact connection.
Rigid internal construction connecting the the entire internal unit to the front and rear panels minimizes the opportunity of the components coming loose during handling or operations.
Sheet metal is powder-coated for greater durability, texture, and appearance.
CD Stud guns are ergonomically designed for better hand fit and comfort which reduces operator fatigue for increased weld repeatability.
CD Stud guns have a permanent internal spring with easy adjustment for various spring pressures for applying the correct spring pressure to the weld.
CD Stud guns can be configured for “B” collets, “CI” collets, Euro collets, or standard tapered chucks.
The TWi-250 CD Unit weighs less than most other available models for ease of carrying.

Size	Weight	Capacitance	Weld Energy	Weld Range	Duty Cycle	Primary Power	Charge Voltage
356mm x 267mm x 292mm	18 lbs.	76,000µF	1520 Watt-seconds	14 gauge through 1/4″ stainless	18 studs per minute @ 1/4″ settings	85-250 VAC, 6.0-2.0A, 50/60Hz 10A Fast Acting Fuse	35-200 VDC