3L Laboratory Ultrasonic Bath Sonicator for Lab Precision Cleaning | Variable Power & Sweep Frequency

The K230HTDP 3L laboratory ultrasonic bath sonicator is the most compact model in our variable power series, giving laboratories a 3-liter ultrasonic bath with genuine adjustable power—not just a fixed-power machine with a timer. The output can be dialed from 5% to 100% in precise increments, while an automatic sweep-frequency circuit prevents standing waves that create cleaning dead zones in ordinary ultrasonic baths. For a research lab processing small samples, delicate components, or varied workloads, this combination delivers flexibility that fixed-power machines cannot match in a benchtop format. All these features make it an ideal ultrasonic bath sonicator for lab precision cleaning.

• 5–100% Adjustable Ultrasonic Power — Dial low for gentle rinsing of delicate items; dial high for aggressive contaminant removal. No need to own multiple machines for different tasks.
• Automatic Sweep Frequency — The operating frequency continuously shifts around the 40kHz center, eliminating stationary nodes where cavitation would otherwise be weak. Sweep frequency ultrasonic cleaner ensures every position in the tank receives uniform energy.
• 120W Maximum Power — Adequate cavitation density for the 3L volume, with the full range usable for practical lab work.
• Digital Timer (1–99 min or Continuous) — Set exact cycle durations or switch to long-running mode for extended sonication protocols.
• 0–100°C Adjustable Heater — 200W heating with a wider temperature range than the KHTD series, reaching up to 100°C for applications requiring near-boiling conditions.
• LED Display — Clear readout of set and actual temperature, remaining time, and power level.

• Sample Preparation — Gentle sonication for mixing, dissolving, or degassing small-volume samples without thermal or mechanical damage.
• Delicate Component Cleaning — Cuvettes, micro-pipette tips, and thin-walled glassware cleaned at low power to prevent surface etching.
• Routine Lab Glassware — Laboratory ultrasonic bath for cleaning beakers, flasks, and test tubes at moderate power settings.
• Stubborn Residue Removal — High-power cycles for polymerized residues on stir bars and small metal tools.

A fixed-power digital ultrasonic cleaner operates at one intensity—typically 100%—for every task. That works for basic cleaning, but it becomes a limitation in a research environment. A delicate thin-walled glass capillary needs a fraction of the power that a heavily soiled stir bar requires. With the K230HTDP variable power sonicator bath, you set the power to match the task: 10–20% for fragile items, 40–60% for routine glassware, and 80–100% for stubborn residues or aggressive sonication. One machine covers the spectrum.

What’s Included

• K230HTDP 3L ultrasonic bath sonicator
• Stainless steel cleaning basket
• Stainless steel lid
• Power cable

Parameter	Specification
Model	K230HTDP
Volume	3 Litres
Ultrasonic Power	120W (5–100% adjustable)
Frequency	40kHz with Sweep Function
Heating Power	200W
Temperature Range	0–100°C
Timer	1–99 min or continuous running
Internal Tank Size	240 x 140 x 100 mm
Overall Size	270 x 170 x 240 mm
Carton Box Size	330 x 230 x 300 mm
Gross Weight	3.7 kg

All are the same 3-liter ultrasonic cleaners with various functions such as mechanical knob control, adjustable power, sweep frequency, and multiple cleaning modes – Same volumes, same specifications, different functions.

KHTDP Series Specifications Sheet

More KHTDP Series variable power ultrasonic bath sonicators, ranging from 3 liters to 30 liters, are available for your choice. Check if the internal tank size is available for your cleaning items.

Explore More Variable Power Series

3L 240x140x100MM

4L 300x150x100MM

6L 300x155x150MM

10L 300x240x150MM

15L 330x300x150MM

22L 500x300x150MM

30L 500x300x200MM

Q: How do I know what power level to use for a given task?

Start low and observe. For unknown items, begin at 20–30% power, run a short cycle, and check the result. If cleaning is insufficient, increase by 10–20% increments for subsequent cycles until you find the optimal setting. For sonication protocols in published methods, match the power level and frequency as closely as your protocol describes.

Q: Does the sweep frequency operate automatically or do I need to activate it?

The sweep frequency function runs automatically whenever the ultrasonics are active. There is no separate switch or setting to manage. The generator continuously adjusts the output frequency within a small band around 40kHz, preventing the formation of standing wave patterns that cause uneven cavitation.