I-BLTC

Ultrasonic Converters: I-BLTC series

I-BLTC transducers are intended for general purpose ultrasonic cleaning applications. Standard resonant frequencies range from 22 to 50 kHz (specials on request).

BLT-series transducers use Poreless Piezo Ceramic for its superior mechanical and electrical properties (click the link for more details).

Shapes of I-BLTC bolt clamped langevin transducers for general purpose ultrasonic cleaning applications

 

 

 

 

 

 

 

 

 

 

 

Model number

I-BLTC Specifications:

 4535D -28HA -28HB 5035D -28HA 6035D -28HA 4535D -38HA 4535D -40HA -40HB 3830D -50HB 5050D -22S
Resonance Frequency kHz 28.08 28.08 28.08 38.10 40.12 50.12 22.05
Impedance in resonance Max Ω 30 30 30 40 40 50 30
Static Capacitance pF Standard type HA : 4000pF, 7%
Lower type HB: 3500pF, 7%		 2,400 6,000
Diameter of Radiating Surface mm 45 50 60 45 45 38 50
Total Length mm 79 77 71 55 54 39 97
Max Operating Power W 70 70 70 70 70 30 200
Product Specification Example:

This specification is applicable to all BLTC, (Bolt-clamped Langevin Transducer for Cleaning), which are used for ultrasonic cleaning devices in single or multiple arrays.

Specification For Type I-BLTC 6035D – 28HA

Classification of I-BLTC bolt clamped langevin transducers for general purpose ultrasonic cleaning applications

Electrical Characteristics:

All characteristics are measured by HP 4194A (Gain-Phase Impedance Analyzer)

Electrical specification I-BLTC 6035D-28HA
Resonant Frequency 28.0 ± 0.6 kHz
Resonant Impedance Max 20 Ω
Static Capacitance 3700 pF ± 5% (1 kHz)
Insulation Resistance Above 10 MΩ (at 1000 V DC)
High Voltage Breakdown DC 5 kV (60 seconds)

Reliability:

Time - temperature graph for testing of ultrasonic transducers

Cracks in ceramic elements must not appear after the following temperature cycling test:

 

Inspection:

  • All lots are tested and reported.
  • Test items are: resonant frequency, resonant impedance, static capacitance, and insulation resistance.
  • One transducer in every 100 is subject to the temperature cycling test as described above, followed by the high voltage breakdown test.
  • For user convenience, the resonant frequency of all BLTC converters is classified in to groups (class A to J), separated by 200 Hz, as given in the following table.
Example frequency groups for I-BLTC 6035D – 28HA:
Class kHz
A 27.20 – 27.39
B 27.40 – 27.59
C 27.60 – 27.79
D 27.80 – 27.99
E 28.00 – 28.19
F 28.20 – 28.39
G 28.40 – 28.59
H 28.60 – 28.79
I 28.80 – 28.99
J 29.00 – 29.19
Parts list for I-BLTC 6035D – 28HA:
No Component Material
1 Nut S45C
2 Back mass Stainless steel
3 Piezoceramic rings Poreless high Qm
4 Input terminal Nickel foils
5 Insulator Teflon sleeve
6 Central bolt SUS304
7 Front mass AL 7075 – T6