Offset Electrode Holders
Holders, Tee Connectors, and Adapter may be assembled as shown, line by line in the table on the Universal Holder Assemblies page
, to make up holder assemblies that will do spot welding in many otherwise inaccessible places. Goldcrown (ejector-type) holders may be used in place of the non-ejector holders listed. The Tee Connector is Class 3 RWMA alloy.
TUFFALOY Cast Class 3 Alloy offset holders combine long life with good conductivity. Threaded tip adapters are easily replaced when tip socket is worn beyond use, or when you wish to change to a different taper size.
TUFFALOY offset holders are made of 2- and 4-inch offsets, and in four shank sizes, with 90° and 30° heads. They are supplied with adapters for No. 4 or No. 5 RW taper tips.
Tip Ejector mechanisms are available on all 90° head holders and the 30° head 4-in. offset holders. When ordering this feature change order number prefix from ‘ON’ to ‘OE’. Example: OE-874-290.
Visit the Using Standard Holders
page for a pictoral view of how to use standard holders.
These offset holders provide a range of offset dimensions rather than one fixed amount, as with other one-piece offset holders. The top has a long shank and can be moved in or out to vary the offset anywhere between four and five inches.
The holders, all of Class 3 alloy, are made in three barrel diameters: 1, 1-1/4, and 1-1/2 inches.
The tips are positional because they have no taper: they have straight shanks, and are held in any selected position by a locking-wedge device in the holder.
Tips are made in one and two-piece designs. The one-piece tips are offered with the nose designs shown on the Variable Offset Holders page
. The two-piece tips are made up by combining the shanks shown on the Variable Offset Holders page
with Tuffcap caps (normally used with No. 5 RW size Tuffcap shanks).
This holder is for weldingin very restricted areas. It provides a very low head height and a four-inch offset. It is made in shank diameters of 3/4, 7/8, 1, and 1-1/4 inches. An adapter bushing is used to add a 1-12-in. dia. model to the line. Each holder comes complete with a socket-type tip (SE-3101) and holding screw. The tip may be inserted in either side of the paddle. Holders are of Class 2 alloy. Tips are available in Class 1, Class 2, Class 3 alloy, or Z alloy.
The four socket-type tips shown on the Paddle Type Holders page
can be used in special welding fixtures and dies as well as in the paddle-type holders.
TUFFALOY heavy-duty paddle-type holders are made of the stronger Class 3 alloy, for greater rigidity and minimum deflection, even under loads of 1000 pounds and more. Class 3 alloy provides 154% more tensile strength. Head height is a low 3/4-in. and the shank length is a usable 4 inches.
Three low-profile electrodes of Class 2 alloy are offered for use in this heavy-duty holder. If applications permit greater head height, any standard No. 4 RW tip may be used.