Available in titanium/aluminum or hardened steel
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Fig. 1 Exponential & catenoidal horns
Exponential /Catenoidal Horns. (Fig. 1)
These horns are available with tapped faces for replaceable tips up to 1" in diameter or with solid faces up to 2-1/2" and are available in titanium, aluminum or hardened tool steel. All tapped horns are machined from titanium. Special faces can be machined onto these designs including contour milling and EDM machining.


Fig. 2 Rectangular bar horn

Rectangular Horns 26" Long. (Fig. 2)
Standard designs are available in lengths up to 26" long with a 2-1/2" maximum width. All of our horns are designed to vibrate with even amplitude across the entire face at reduced power.
Round Horns: Solid & Hollow (Fig 3)
These horns are available with high or low gain ratios and are made from titanium or aluminum. The face diameter (working surface) can start at .010" O.D. and any dimension up to 6" with a flat solid face. Platings such as hard chrome, carbide coatings and titanium nitride are commonly used to protect against wear.

Fig. 3 Round horns; hollow.


Fig. 4 Large composite block horn for welding complex geometries.

Block Horns/couplers
(Fig. 4)
Machined from aluminum only, these horns are available up to 9" x 12". They require higher power units to run efficiently. Extender horns are sometimes attached to the face to weld applications requiring high amplitude or for parts with high profiles requiring deep relief cuts into a horn's face

Composite designs
(Fig.5)

Composite designes with standard horns allows us to provide concentrated energy where it needs to be. Any combination of horns can be "COUPLED" together to solve your welding application.

Fig. 5 Large rectangular horn with four extenders.


Fig. 6 Round solid horns

Other Standard Horns

All horns available in
the following frequencies:

15 kHz, 20 kHz,
30 kHz, 40 kHz

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Sonic & Thermal Technologies, Inc.
84 Research Drive
Milford, CT 06460
Tel: (203) 878-9321 Fax: (203) 878-6786

Call Toll Free
1-800-875-4676

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Round solid horns
(Fig. 6)

(Larger horns have slotted faces) up to 12- 1/8" O.D. these horns are the most efficient designs for ultrasonic welding.