ectropolishing and Medical Parts Electropolishing
Parts Polishing Equipment from ESMA, Inc.
Electropolishing, sometimes called reverse electroplating, is an electrochemical process which polishes a metal surface by removing microscopic amounts of material from the work piece.The process is of interest because of its ability to enhance the material properties of metal parts in addition to changing their physical dimensions. Electropolishing offers a number of benefits to metal surfaces such as:- Removal of impurities and improvement of corrosion resistance of a metal surface. (PASSIVATES)
- Improvement of the appearance of a metal surface (HIGH LUSTER)
- Improvement of the surface resistance to stain and bacteria.
- The microstructure of the surface can be more accurately inspected.
- Removal of surface defects improving the strength of certain metals.
Electropolishing Equipment
Download Details on EP Processing Steps
- E399-EPC Console Mounted 200-amp System with Rinse Tank
- E399 Benchtop Single Station 50-amp Unit
- E299 Benchtop Single Station 25-amp Unit
- E1085-1S Benchtop Single Station 10-amp Unit
- E782-EP Benchtop Mult-tank 25-amp System
- EP-Wet Bench Console Mounted 200-amp Mult-tank Integrated System
Esma's automatic ultrasonic passivation systems provide a unique closed and covered process of cleaning-rinsing-passivating-rinsing and drying all at the push of a button. Easily descrived as a one-of-a-kind process, these systems are designed for in-house automated processing of parts in a a safer more fume free environment. These systems do not require much floor space as compared to other automated systems and provide great cost savings when compared to automated robotic passivation systems.
**Automated cleaning and passivating by moving the fluids NOT the parts!**
The Esma E992.3T Triple Tumbler is a variation of our standard model E992. For an explanation of the E992 process go here. The E992.3T unit is a self-contained, fully-automatic ultrasonic cleaner and/or passivation system. The model E922.3T adds 3 of the unique design tumbler baskets into the bath. Tumbler baskets will rotate slowly during the entire cycle with user input speed control per process step. Rotation of parts, especially parts with blind holes, cavities, threads, etc., will allow debris which is difficult to clean, to be drop off the parts further enhancing the ultrasonic cavitation cleaning effect. Furthermore, when used in a passivation process, the rototation will allow acid to penetrate hard to reach areas, assuring an effective passivation in all places. Operator interaction is managed through the touchscreen interface; including data collection for process steps and cycle parameters. This closed system minimizes operator exposure to acids and chemicals including a vented cover to eliminate chemical fumes. Process automation eliminates potential operator error or parts over exposure.
Esma's Multi-tank Ultrasonic Cleaning/Passivation Systems can be used as effective passivation lines by housing heated cleaning solution in tank1, cascading (DI) rinse waer in tank 2, heated passivation solution in tank 3, and a final cascading (DI) waer rinse in tank 4. Tank 5 is an optional hot air dryer. Manual systems require operators to move baskets from tank to tank, digital timers (alarms) will indicate when baskets are to be moved. Systems can be used with both citric and nitric acid, however, it is recommended to look into our automated systems when using nitric acid.
The Esma E782CP-SA, Semi Automated Passiavtion Line is a unique combination of our standard mulit-tank, manuel passivation system, with PLC/HMI control to automatically instruct operators when and when to move parts through the system. This semi-automated unit allows for recipe creation of various ASTM 967 passivation processes which can then be run with little to no operator training. The system is designed to promt and aler operators when and where to move baskets during a cycle, minimizing oversight and training of personnel. The E782CP-SA can be customized to fit your part size and volume. Since the system utilizes PLC and HMI touchscreen technology, data logging is standard with the system to record all the pertinent cycle information for validation purposes. Access to the data can be done via USB or Ethernet FTP.
Esma ultrasonic cleaners come in a variety of sizes ranging from 1 gallon benchtop units to 350 gallon floor mounted models. Each machine is made from 100% stainless steel which provides not only a rich appearance but also unsurpassed durability. Our proprietary solid state circuitry provides a continuous, square-wave frequency wave at a constant amplitude. This produces multiple harmonics to the bath which tends to fill the less active areas in the bath and provides a more homogenous cleaning. The automatic tuning adjusts the primary resonant frequency of 38 Khz for changes in load and liquid levels. The combined effect of this superior circuitry is to produce a unit that is "not just another ultrasonic".
The ESMA E283 ultrasonic cleaning system is a tabletop unit designed for relatively low volume, but high performance parts cleaning and polishing operations. The E283 can be configured with ESMA ultrasonic rinsing and hot-air drying tanks to provide a complete parts processing system that ensures quality parts cleaning and efficient operation.
The ESMA E782 ultrasonic cleaning system is a single-chassis, 4-tank design, including 2 ultrasonic cleaning tanks, 1 rinse tank, and 1 hot air drying chamber. The E782 is designed for production environments where low volumes of small parts, such as medical devices or cutting tools require high-performance cleaning. The E782 can be individually configured to fit the specific requirements of diverse industrial ultrasonic cleaning applications. Sold as a benchtop unit or in a stainless steel console.
Here at ESMA Incorporated we have been in the ultrasonic cleaning business for over 40 years and we are known for our high quality, top of the line ultrasonic washers and cleaners. Our automated systems are unique due to our innovative process in which automation is done by moving the liquids rather than the basket of parts. This allows for a lower cost automated system as opposed to competitor system which use robotic gantry systems to move baskets from tank to tank. These systems also have a much smaller footprint than competitor automated systems.
Esma non-automated ultrasonic cleaners use a multi-tank design, in either a single chassis or multi-chassis construction. Separate tanks provide individual chambers for ultrasonic cleaning, ultrasonic hot water flush rinsing to remove drag-out solution, and a final chamber for hot air drying.
Esma, Inc. automatic ultrasonic washers, and the full line of Esma tabletop automated ultrasonic cleaners are designed to incorporate the Esma in-tank parts tumbling system. This proprietary rotating basket design loosens hard debris accumulated in blind holes or cavities, separates parts that tend to cluster, and removes trapped air so ultrasonic cavitation can penetrate the part.