How does an ultrasonic cleaner work?
The principle is based on cavitation: piezoelectric transducers attached to the bottom of the tank convert electrical energy into high-frequency mechanical vibrations, typically between 20 and 80 kHz. These vibrations propagate through the cleaning liquid in the form of ultrasonic waves and generate millions of microscopic bubbles.
These bubbles implode upon contact with the surfaces being cleaned, releasing intense local energy that removes dirt, residues, grease deposits, and impurities, even in the most inaccessible corners. This process is non-abrasive: it cleans without scratching or damaging the treated surfaces.
The cleaning effectiveness depends on three main parameters: frequency in kHz, power in watts, and the temperature of the liquid. A high temperature accelerates cavitation and improves the action of the detergent, which explains why heated models are beneficial for demanding applications.
The different types of ultrasonic cleaners available
The Rewake collection covers the main families of ultrasonic cleaners used in laboratories and industry. Each type meets specific application, volume, and contamination level constraints. Identifying the right model from the start avoids selection errors and adaptation costs.
Available capacities range from a few liters for small benchtop equipment to large tanks for bulky parts. The presence of integrated heating, a degassing system, or a separate generator are deciding factors depending on the intended use.
Benchtop ultrasonic cleaner
The benchtop cleaner is the benchmark model for laboratories. Compact, it features a stainless steel tank, a digital display, and an adjustable timer to precisely control cycle durations. It sits directly on the workbench without requiring any special installation.
This type of equipment is suitable for cleaning laboratory glassware, dental instruments, probes, small mechanical parts, and jewelry. The choice of capacity in liters, frequency in kHz, and power in watts must be adapted to the volume and nature of the objects being treated.
Heated ultrasonic cleaner and industrial cleaner
The heated cleaner incorporates a heating system that raises the temperature of the cleaning liquid to optimize the action of the detergent and accelerate cavitation. It is particularly effective for degreasing metal parts, cleaning carburetors, injectors, and heavily soiled mechanical components.
Industrial models have a separate generator that allows for the operation of large tanks with high power. They are suitable for mechanical workshops, the aerospace industry, and any environment requiring high-throughput industrial cleaning for large parts or large quantities.
Technical criteria for choosing your ultrasonic cleaner
The primary criterion is the capacity of the tank, expressed in liters. It determines the volume and size of objects that can be treated simultaneously. An undersized tank limits productivity, while an oversized model consumes energy and cleaning liquid unnecessarily.
The frequency in kHz dictates the intensity of the cavitation. Low frequencies (20 to 40 kHz) are suitable for robust parts and intensive degreasing. High frequencies (60 kHz and above) are suitable for fragile parts, optical instruments, and sensitive components. Power in watts determines the energy density available in the tank.
The presence of a drain valve facilitates liquid renewal and tank cleaning between batches. The digital display and adjustable timer allow for the programming of precise, reproducible cycles, which is essential for standardized laboratory protocols.
The tank materials, made of AISI stainless steel, guarantee resistance to corrosion and compatibility with common detergents and solvents. A lid limits liquid evaporation and reduces noise levels during cleaning cycles.
Rewake refurbished ultrasonic cleaners: our reconditioning process
Every ultrasonic cleaner in the Rewake collection follows a structured reconditioning protocol carried out by specialized technicians. The goal is to restore performance to original specifications at a reduced acquisition cost.
The first step is a complete inspection of the tank and transducers. The condition of the welds between the transducers and the tank bottom is checked: a detached or damaged transducer directly compromises cavitation power. Any detected anomaly results in the replacement of the component in question.
The generator is then tested for its actual frequencies and effective power in watts. The measured values are compared with the equipment's original specifications. A deviation outside of tolerances leads to recalibration or replacement of the generator.
The timer, heating, and all controls are checked under actual conditions. The tank is cleaned and inspected for any signs of corrosion or deposits. Every piece of shipped equipment is accompanied by a warranty and full traceability for immediate integration into your workspace.
For what uses and sectors?
The ultrasonic cleaners in the Rewake collection cover a wide spectrum of professional applications. In analytical laboratories, they are used for cleaning glassware, pipettes, probes, and measuring instruments that require impeccable cleanliness between each use.
In the dental sector, they allow for the cleaning of instruments, dentures, and orthodontic bands prior to disinfection. In watchmaking and jewelry, they clean delicate metal parts, bracelets, rings, and precious metals without risk of abrasion or oxidation.
The mechanical and aerospace industries use this equipment for degreasing metal parts, cleaning carburetors, injectors, bushings, and molds. Contact lenses and optical instruments are also cleaned via ultrasound in healthcare and research environments.
In pharmacy and research, ultrasonic cleaners are used for instrument decontamination, cleaning sterilization baskets, and surface preparation before treatment. The Rewake range covers these varied needs with equipment available in stock.
Why choose a refurbished ultrasonic cleaner?
The main argument is economic. A refurbished ultrasonic cleaner is available at a price significantly lower than equivalent new equipment. For laboratories and workshops managing tight budgets or equipping several stations simultaneously, this is a concrete way to reduce costs without compromising performance.
Major brands in the sector are represented in the Rewake collection. Accessing equipment recognized for its reliability and cavitation power at a controlled cost is a direct advantage for teams with precise technical requirements.
Delivery times are generally shorter than for new orders, as the equipment is available in stock and ready to ship. An urgent replacement or rapid capacity expansion thus becomes possible without waiting for weeks of lead time.
Environmentally, extending the lifespan of equipment reduces manufacturing needs and limits industrial waste. Reconditioning is part of an energy efficiency and concrete responsibility approach, without harming the operational quality of the delivered equipment.
Request a quote for a laboratory ultrasonic cleaner
Ultrasonic cleaners allow for the effective cleaning of equipment and certain laboratory parts. Request your quote for a laboratory ultrasonic cleaner to identify the equipment that matches your desired capacity and applications.
FAQ — Refurbished ultrasonic cleaner
Which frequency should I choose for my ultrasonic cleaner?
Low frequencies, between 20 and 40 kHz, produce aggressive cavitation suitable for robust metal parts, intensive degreasing, and cleaning carburetors or injectors. High frequencies, starting from 60 kHz, generate finer, less destructive bubbles, ideal for fragile parts, optical instruments, and sensitive electronic components. The choice depends directly on the nature of the objects to be cleaned.
What liquid should be used in an ultrasonic cleaner?
Tap water is sufficient for common cleaning without stubborn residues. Adding an appropriate degreaser significantly improves effectiveness against grease, deposits, and encrusted dirt. Certain aqueous solvents are compatible depending on the tank materials. Flammable liquids require specific precautions and appropriate equipment. It is advisable to renew the liquid regularly to maintain cleaning effectiveness.
Can an ultrasonic cleaner damage fragile parts?
Ultrasonic cleaning is non-abrasive and does not damage surfaces if configured correctly. Fragile parts require high frequencies and short cycles to limit the intensity of cavitation. Some materials are incompatible with this process: certain soft plastics, sensitive coatings, and parts featuring adhesives or weakened assemblies. In case of doubt, a test on a non-critical part is recommended before batch processing.
Are Rewake refurbished ultrasonic cleaners reliable for professional use?
Each cleaner is tested for its actual power, effective frequencies, and cavitation effectiveness before shipment. The generator and transducers are systematically verified. Test reports are available upon request for laboratories and workshops subject to strict traceability requirements.
What maintenance is required for a laboratory ultrasonic cleaner?
Regular maintenance involves four points: draining and cleaning the stainless steel tank after each batch, careful rinsing after using detergents or solvents, periodic checking of the transducers and generator, and checking the drain valve. Rigorous maintenance preserves cavitation power and significantly extends the equipment's lifespan.
