Magnus Engineered Equipment (MEE) has been providing cleaning solutions for our industry partners since its founding in the 1950’s. MEE supplies the majority of gun manufacturer’s with cleaning equipment and recently worked with one such customer to solve a challenging barrel cleaning problem. An immersion cleaning system was designed, constructed and tested and the cleanliness results exceeded those delivered by more costly and inefficient pressurized cleaning systems. The system was fully contained and minimized water and energy consumption with filtration and oil coalescence technology. Consistent and repeatable cleaning is achieved while minimizing water and energy usage, and cleaning chemistry usage and disposal.
MEE’s experienced staff of engineers can solve most cleaning challenges and welcomes an opportunity to work with you to solve your cleaning requirement, or modernize an existing cleaning operation to achieve:
- Water conservation
- Energy conservation
- Cleaning chemistry conservation
- Waste minimization
- Elimination of hazardous chemistry
- Improved safety
- Increased throughput
- Consistent and Repeatable cleaning
- Reduced labor requirement
Magnus Engineered Equipment (MEE) produces the most powerful ultrasonics for cleaning applications. MEE manufactures ultrasonic transducers which operate at 20 kHz which is 25 times more powerful than the 40 kHz transducers supplied by other suppliers of cleaning equipment. The transducers are made with continuously laminated magnetostrictive 20 kHz elements which deliver more uniform cleaning than the discretely mounted piezoelectric elements used in 40 kHz transducers.
Comparison of 20 kHz vs 40 kHz Ultrasonics with Household Aluminum Foil
Figure 1 shows the difference in cleaning power between the two types of transducers. The 20 kHz transducer will perforate and tear the soft household aluminum foil whereas the less powerful 40 kHz transducers will only dimple the aluminum foil.
Figure 2 shows the difference in construction of 20 and 40 kHz transducers. The weaker 40 kHz transducers are bonded to a thin stainless steel sheet to minimize the loss of energy from the piezoelectric elements. The weak stainless can readily flex between the elements and thus transfer the energy to the cleaning solution. This thin stainless steel sheet is prone to develop porosity and limits the 40 kHz transducer to a lifetime of 2-3 years. The more powerful 20 kHz elements are continuously bonded to a thick stainless steel sheet which prevents porosity and greatly extends the life of the transducer. The uniform bonding delivers a more uniformly sonicated cleaning solution which in turn delivers more uniform cleaning.
Urethanes are an adhesive and will bond to aluminum or steel molds. Over time, the molds used in the casting of urethane and polyurethane parts build up a residue and require cleaning. Magnus Engineered Equipment (MEE) can provide a cleaning process wherein the molds are cleaned in less than 5 minutes and without any damage or distortion to the mold. Dis-assembly of the mold is not required for cleaning. Any size or weight mold can be cleaned with the MEE cleaning process.
In the past, producers of molded urethane parts would use an abrasive or grit blasting to clean the molds after casting. This cleaning process caused the mold surface to become rougher which then made mold release and mold cleaning even more difficult. These cleaning processes often required dis-assembly of the mold and many hours of effort to remove the surface contamination. Using 20 kHz magnetostrictive transducer technology, MEE can provide a cleaning process which will clean the mold without dis-assembly, cause no harm to the mold, and will clean the mold in less than 5 minutes!
MEE manufactures and supplies the most powerful ultrasonic cleaning equipment for cleaning applications. Unlike the commonly used piezoelectric transducers which operate at 40 kHz, MEE supplied magnetostrictive transducers which operate at 20 kHz and deliver ~25 times more cleaning power than piezoelectric transducers. Higher power equates to more thorough cleaning, faster cleaning speeds, or both. Figure 1 shows the cleaning power comparison between MEE’s magnetostrictive transducers and piezoelectric transducers.
Figure 1 Magnus vs Competitor’s Ultrasonic Cleaning Power
Here are some photos of molds with polyurethane contaminant which were cleaned with the MEE process.