Operation Manual Accessories
8-6
EXTENDER TIP
Half-Wave and Full-Wave Extenders are used to extend the length of a horn and provide longer
reach when needed. Extenders attach directly to the end of any tapped horn of equal tip diameter.
They are cylindrical (not tapered or stepped), and are available in lengths of 5" or 10".
When Extender Tips are used for long-duration processing at high output settings, they may
develop considerable heat. Do not allow them to exceed 140
o
F (60
o
C) (observe MICROTIP
precautions).
SAPPHIRE TIPPED HORN
1. Sapphire tips are thin discs of pure, water clear, boule-grown, synthetic sapphire,
bonded with an extremely high-shear epoxy to the radiating face of solid ultrasonic
horns. Sapphire discs can not be used on removable flat tips because the wrenching
forces would be transmitted to the disc and cause fracture. Sapphire discs are only
available for horns ½“ and larger (12.7 mm) in radiating face diameter.
2. Sapphire disc tips are very hard, with a rating of 9.0 on the Mohs scale (where
diamond is 10). However, they are also easily fractured by mechanical shock or
bending. Therefore, avoid any contact between the tip and any solid object, especially
when the horn is energized.
3. The thin layer of epoxy holding the sapphire disc to the end of the horn is
subject
to cavitation erosion and leaching under strong chemical attack. Always check the
condition of the bond. Visible loss of epoxy under the tip will result in eventual failure
of the disc.
4. The sapphire tip generates cavitation in liquids exactly in the same manner as the
titanium tips. The sapphire disc will normally last approximately 10 times longer than
the regular titanium tip. Erosion appears as a matte finish on the radiating face.
Eroded discs can NOT be refinished or polished.
5. Horns with broken or chipped discs should never be used. Erosion could occur on the
exposed face of the horn and render it unsalvageable.
6. Cracked, broken or eroded discs can be removed from used horns and replaced at
the factory. Contact MISONIX or local representative for current replacement
information.
7. Be sure to store sapphire tipped horns in a safe place and well protected from impact.
Ambient temperatures and humidity will not damage the disc or epoxy.
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