COVID-19 Operational Update

Yesterday Ohio Governor Mike DeWine announced a stay at home order for our state, and mandated all non-essential businesses to close their physical locations by midnight today, March 23rd through April 6th, as part of the response to the COVID-19 outbreak.

As referenced in the Ohio Director’s Stay At Home Order, paragraph 12, section v, essential businesses include “Manufacturing companies, distributors, and supply chain companies producing and supplying essential products and services in and for industries such as pharmaceutical, technology, biotechnology, healthcare, chemicals and sanitation, waste pickup and disposal, agriculture, food and beverage, transportation, energy, steel and steel products, petroleum and fuel, mining, construction, national defense, communications, as well as products used by other Essential Businesses and Operations.”

Because of the critical role that Magnus’s cleaning equipment and spare parts provide to all of the industries listed above in the Director’s orders, Magnus Engineered Equipment will remain operational to support the critical infrastructure.

Magnus Engineered Equipment also meets the criteria of CISA’s Guidance on the Essential Critical Infrastructure Workforce: Ensuring Community and National Resilience in COVID-19 Response as critical manufacturing infrastructure workers.

The health and safety of our employees and their families, as well as our customers, partners and community, remains our highest priority. We are actively practicing social distancing, have instituted extensive work from home policies where applicable, have made sanitizing products readily available, and maintain daily deep cleaning procedures for our facility.

We will continue to monitor updates from state government, the CDC and WHO, and continuously make improvements in our processes and policies to do our part in stopping the spread of this virus.

Magnus is proud to be able to continue serving our customers during this challenging time. We wish you good health, and as always, thank you for your support.

Magnus Solvent Cleaning

Immersion Cleaning with Solvents

Magnus Engineered Equipment has been making agitation immersion cleaning equipment since the 1950’s.  With this long experience, we understand how to manufacture parts cleaning equipment which can handle solvent based cleaning solutions.  The low flash point of many industrial solvents poses a fire risk and the equipment must be designed to both minimize the risk of fire and prevent the spread of fire should one occur.

Magnus equipment is inherently safe; only shop compressed air is used.  Electrical components, electrical enclosures and flammable materials are not utilized as these components would compromise the safety of the equipment.  Components on the cleaning tank are permanently electrically bonded to comply with the NFPA and OSHA requirements and metal-to-metal moving surfaces are eliminated to avoid spark generation.  Should a fire occur, a fusible link reacts and causes the tank lid to automatically close.  This suppresses the flame and minimizes the availability of air which can feed the fire.  Solution filtration is accomplished via the use of a grounded air operated pump which is compatible with the solvent being used.  It’s advisable to utilize an aqueous cleaner where possible, however if the cleaning operation requires a solvent based chemistry, then use equipment which has been specifically designed to handle the solvent chemistry and minimizes the risk and spread of fire.

The ML 2918 cleaning system presented herein is affectionately called a “Senior” as it has been utilized in the cleaning industry for more than 65 years.  The system is suitable for modification for use with solvent based cleaning solutions and is manufactured and supported by MEE in Willoughby, Ohio and spare parts are generally available via next-day delivery.


Operation of the wash tank is conducted via a three-position selector lever on the side of the tank.

    • RAISE : This position will raise the platform.
    • LOWER : This will lower the platform down to “soak” in the lowest position.
    • AGITATION : This will lower the platform and activate the agitation process. Agitation rate is adjustable.


    • 12 gauge, 304 stainless steel, insulated tank construction
    • Stainless Steel tank jackets and cylinder guard
    • Manual, hinged stainless steel lid
    • 35” long x 28.5” wide x 53.75” high overall dimensions
    • 30” long x 22” wide x 20.5” high inside tank dimensions
    • 29” long x 18” wide x 11” high dipping space dimensions
    • 29” x 18” stainless steel grate platform
    • 125 lb. lift capacity (at 100 psi)
    • 40 gallon capacity
    • Pneumatic agitation control
    • 25” drain with Stainless Steel Ball Valve
    • Optional integral filtration system compatible with a solvent cleaner including air operated diaphragm pump and filter housing with air regulator, pressure gauge and drain port.
    • Requires 2 to 4 cfm @ 100 psi compressed air
      • Achieves 140-180 strokes per minute (70-90 cycles per minute)
      • 5” to 2.5” travel per stroke


    • FUSIBLE LINK with Dump Solenoid, adds safety when working with flammable materials. A one-piece hinged cover with a 212oF melting point, automatically closes when the link melts causing the platform to lower and the cover to close.
    • Permanent electrical bonding per NFPA and OSHA compliance
    • Elimination of metal-on-metal moving surfaces
    • No electrical supply or electrical boxes on the system

Magnetostrictive Ultrasonic Cleaning Succeeds Where Less Powerful Piezoelectric Ultrasonics Fail

Case Study: nPB (N-Propyl Bromide) Replacement

N-Propyl Bromide (nPB or 1-Bromopropane) is a toxic solvent often used in cleaning or vapor degreasing applications. As a suspected human carcinogen and proven animal carcinogen, it has been targeted by the U.S. Environmental Protection Agency for risk evaluation and the European Union has banned it’s use without authorization after July 4, 2020. It is clear that nPB use will soon be banned or greatly restricted and existing users are encouraged to look for a replacement.

Companies presently using nPB are searching for safe, economical and effective replacements for nPB and Magnus Engineered Equipment has been successful in assisting customers to replace nPB with less costly, non-hazardous chemistry while accomplishing the same or improved cleaning. The following is an example where Magnus Engineered Equipment helped a customer develop a cleaning process utilizing nPB and then further helped them replace nPB with non-hazardous, environmentally friendly chemistry.

Highly crosslinked polyurethane is one of the toughest and most durable polymers, and producers often mold this material into usable items such as wheels for roller coasters and skateboards, hoses and automotive suspension bushings. The molds can become contaminated and cleaning the molds is a difficult and time-consuming process.

MEE worked with a customer to develop a chemical cleaning process for their polyurethane molds (steel and aluminum). Previously, a media blasting method was utilized to clean the molds and the process required mold dis-assembly and up to 4 hours of blasting. Using MEE Powersonics, the world’s most powerful magnetostrictive ultrasonic cleaning technology, MEE was able to demonstrate mold cleaning in less than 5 minutes with no mold dis-assembly. (This result was not achievable with less powerful piezoelectric ultrasonic cleaning). With this success in hand, attention was directed at finding a safer chemistry. Powersonics coupled with Acrastrip chemistry by US Polychem was able to replicate the performance achieved with nPB. Acrastrip is a water-soluble, non-hazardous environmentally friendly cleaner that was designed to replace acetone, toluene, MEK, Methylene Chloride, Xylene, MIBK, NPB, Ketones, and other petroleum-based products. In addition, Acrastrip is HAPS free, biodegradable, non-flammable, non-toxic, pH neutral and recyclable.

A Polyurethane mold cleaned with powerful 20 kHz magnetostrictive ultrasonic technology and water-based Acrastrip cleaner

The cleaning tandem of MEE magnetostrictive ultrasonics and Polychem Acrastrip is one example of how MEE can assist customers who are looking to replace nPB with a safer, more cost-effective and quality cleaning operation. MEE Powersonics is the world’s most powerful ultrasonic cleaning technology and can often deliver successful cleaning where less powerful piezoelectric ultrasonics fail.


error: Content is protected !!