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The Crest Ultrasonic Bath Model 1100D, equipped with a stainless steel (SS) basket, is a professional-grade, digitally controlled benchtop cleaning system belonging to Crest Ultrasonics’ renowned Powersonic series. As a trusted American brand (now part of the Danaher Corporation), Crest has long been a leader in precision ultrasonic cleaning technology. The Model 1100D is specifically designed to deliver efficient, thorough, and repeatable cleaning for laboratories, electronics manufacturing, precision machining, medical facilities, and various industrial sectors. Its core cleaning power relies on the principle of ultrasonic cavitation: high-frequency electrical energy is converted by industrial-grade piezoceramic transducers into mechanical vibrations (typically operating at 38.5 kHz to 45 kHz depending on the specific sub-model, such as P1100D-38 or P1100D-45). These vibrations travel through the stainless steel tank wall into the cleaning solution, generating millions of microscopic vacuum bubbles that rapidly form and implode. The implosion releases intense localized energy, creating micro-jets and shockwaves that penetrate even the most intricate crevices, blind holes, and complex geometries of the objects being cleaned, effectively dislodging and removing contaminants such as oils, greases, fluxes, buffing compounds, particulates, biological residues, and other stubborn soils without damaging delicate substrates.

A standout technological feature of the 1100D is Crest’s patented TRU-SWEEP™ frequency sweep technology. Unlike standard ultrasonic cleaners that operate at a fixed frequency—which can lead to the formation of standing waves, resulting in uneven energy distribution characterized by "hot spots" (areas of excessive energy) and "dead zones" (areas with little to no cleaning action)—the 1100D automatically modulates its operating frequency by ±1 kHz around the nominal frequency. This continuous sweeping breaks up standing wave patterns, ensuring a homogeneous sound field and uniform energy distribution throughout the entire tank volume. This guarantees consistent, repeatable, and thorough cleaning results regardless of where the items are placed within the bath. Complementing this, the "D" (Digital) series control interface provides precise, user-friendly operation via an LED digital display and tactile keypad. Users can independently program the cleaning cycle time from 0 to 99 minutes (or select continuous operation for extended tasks), digitally set the bath temperature from ambient up to 80°C (176°F) with high accuracy, and adjust the ultrasonic power output across multiple levels (often 9 steps). A particularly valuable function is the Degas mode, which uses intermittent high-energy bursts to rapidly remove dissolved gases from fresh cleaning solutions, preventing gas bubbles from adhering to parts and impeding cavitation efficiency, thereby shortening solution preparation time and enhancing immediate cleaning performance.

The physical construction and included accessories further enhance the utility and durability of the Model 1100D. The cleaning tank itself is deep-drawn from a single sheet of high-quality 304 stainless steel, featuring rounded corners for easy cleaning and resistance to chemical corrosion from various aqueous detergents and compatible solvents. The outer housing is also constructed of stainless steel, ensuring long-term durability in demanding environments. The included stainless steel mesh basket (SS basket, commonly model SSPB1100 or SSMB1100) is a critical accessory; it allows users to batch-load parts, keeping them elevated slightly off the tank bottom. This prevents direct contact that could dampen ultrasonic energy transmission or potentially damage the transducers bonded to the tank underside, while also facilitating quick, drip-dry removal of multiple parts simultaneously. Depending on the specific tank size configuration (common capacities for the 1100 series are around 2.75 to 3.25 gallons / 10.4 to 12.3 liters, with internal dimensions approximately 11.75 x 9.5 x 8 inches / 298 x 241 x 203 mm), the unit may also feature a convenient drain valve for effortless fluid changes and a heater with intrinsic dry-run protection for safety. With its robust performance, precise digital controls, uniform cleaning action, and durable construction, the Crest Ultrasonic Bath Model 1100D with SS basket remains a versatile, reliable, and essential workhorse for achieving high-standard cleanliness in diverse professional and scientific applications.

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