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BRAZING AND SOLDERING PREFORMS

A Brazing or soldering Preform is any solid shape of filler that can be placed in an assembly prior to the heating cycle.

The continual upgrade in the automation of metal joining processes coupled with the evolution of new brazing alloys has stimulated new growth in perform design. We can manufactures custom stamped performs from over 1,000 tools already on our shelves. Chances are we have existing tooling to meet your specific requirement. However, if we need to develop new tooling, our precision machine shop keeps cost and lead times to a minimum.

Preforms are available in the following formats:

Types of Preforms

Preform Capabilities

A variety of styles based on the needs of the application. Examples include, Lap, Butt End, Gap, Multi-Turn, Segment/Arc, or Edgewounds.

Ring Coiling Wire (available in all alloys): .005” to .187” diameter.

Ring Diameters: .030” I.D. to 13” O.D.

Blanked Washers, Discs, Shims, Special Shapes - fabricated from brazing alloy strip and used where joint clearances or joint design prevent the use of wire forms. Available in .001” to .100” thicknesses.
The most economical preform to manufacture. Slugs can be made from any brazing wire and cut to required length. Available in .005” to .750” diameter.
Brazing wire can be formed into an infinite variety of configurations to meet customer application requirements.
Primarily spheres and disc shapes. Used in joints of limited access that require a large volume of alloy.


Brazing preforms improve quality while lowering production costs by:

bulletEliminating costly hand-fed operations,
bulletAccurately controlling brazing alloy volume for fewer incomplete joints,
bulletProviding access to automated brazing and soldering systems, and
bulletDemonstrating uniform wetting and smooth joint appearance.

Cleaning tips for Soldering and Brazing

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SRA  Stan Rubinstein Assoc.  56 Leonard St., Unit #2, Foxboro, MA 02035 USA

508-543-4111    800-545-4570    Fax 508-543-3191