Piezoelectric Transducers
NBL Langevin Bolt-on Transducers
Overview
Applications
KEMET’s Langevin-type transducers are used whereever
powerful ultrasonic waves must be generated. For
application flexibility and ease of installation, these
transducers are mounted in a structure that can be bolted
virtually anywhere.
• Cleaning equipment
• Ultrasonic treatment machines
• Welders for plastic
KEMET’s high-performance ceramic material NEPEC® N-61
is excellent for use in these Langevin transducers. KEMET
produces a number of this type of transducers, all featuring
high quality and excellent output levels, and all based on a
unique proprietary design.
Benefits
• High mechanical Q and excellent electro-acoustic
conversion efficiency, providing a high output amplitude
• High speed of vibration due to piezoelectric element
• Fast and easy installation
• High reliability
• Operating temperature range from −40°C to +120°C
• Good amplitude linearity due to N–61 ceramics’ extended
temperature range
• RoHS/REACH compliant
Ordering Information
NBL
Series
NBL
45
28
2
H
A
3
Diameter of
Acoustic Wave
Radiation
Number of
Piezoelectric
Elements
Resonant
Frequency
Construction
Radiation
Surface
Model
Type
Type
15 = φ 15 mm
20 = φ 20 mm
45 = φ 45 mm
28 = 28 kHz
40 = 40.2 kHz
60 = 60 kHz
2 = 2 elements
H = Horn
construction
(output surface has treatment machines
Blank = Not
available for
Blank
3
step or horn shape) type
S = Straight
construction
A = Threaded
type for cleaning
equipment
Built Into Tomorrow
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
TD0001_NBL • 8/10/2023
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