For this entry, we’re going to focus on food service or food prep environments where the scales need to be stainless steel and are washed off regularly.
In these environments it is essential to have a “waterproof scale” that can be hosed down with warm soapy water and cleaned to minimize operational downtime. When we discuss washdown bench scales we often use the IP ratings which you’ve probably heard of. Normally, the higher the rating the better the washdown capability. Same is true for washdown floor scales.
So let’s go ahead and list our top 5 choices for water resistant scales. These choices are based on our past experience and manufacturer reputation. I also want to mention that it’s not just about the digital weight indicator. The load cell that is inside the scale platform is also a factor in the overall weighing and washdown performance as well. Ideally for washdown applications the load cell should be stainless steel and hermetically sealed. Some would even recommend hydrostatic cells for this type of environment.
#1 Rice Lake CW90X
We listed the CW90X as the top choice but really it’s the Rice Lake lineup as an entire group. Made to withstand sharp knife-point contacts as well as contaminants and liquids, Rice Lake’s CW-90X features an amazingly tough piezo keypad. Its extra-strength material is the most durable in the industry, ensuring your scale will continue to work through any challenge.
Manufacturers with harsh production environments look for the IP69K rating to provide the highest level of protection available. The CW-90X uses a hermetically sealed load cell and stainless steel indicator, which have both earned IP69K rating, guaranteeing protection from repeated high temp/high pressure washdowns. Complete with 304 stainless steel construction, the CW-90X will help meet all of your HACCP and food industry requirements.
Rice Lake actually has several weight indicators that are now rated as IP69K including the 680 and 682 in addition to the CW90X. And, they also now have the 380 Synergy as well as the 380X available. So, overall this is one of the top brands of “waterproof” scales that we would recommend for this type of environment.
#2 Cardinal 190
Cardinal Scale weight indicators are one of the most vital pieces of equipment available in the company’s extensive product line. These valuable implements can couple with virtually any scale or weighing equipment to provide easy, digital viewing in almost any setting, indoors or outdoors. Each indicator is developed with the highest durability, data integration, and resolution in mind. Cardinal Scale Manufacturing weight indicators service a wide range of industries, from food service and medical to industrial and agricultural weighing applications. Cardinal Scale’s indicators range from waterproof, color-changing displays to full-fledged programmable indicators that can be remotely controlled.
Built for extreme-use applications in the weighing industry, the Cardinal 190 STORM IP69K rated polycarbonate enclosure withstands high-temperature up to 176º F and high-pressure wash downs (1450 PSI). The 190 STORM features capacitive touch keys, 1-inch-high clearly visible LCD digits, built-in RS232 communications port, and versatile power options: AC, DC, and rechargeable battery.
The 190 STORM bright vivid display changes color automatically as the pre-assigned target weights are reached. The operator knows immediately when they’ve reached the acceptable weight range based on the amber, green, or red color changes for UNDER, ACCEPT, or OVER weights. NTEP, OIML, and Measurement Canada.
The 190 is consistently a favorite among customers over the past several years due to it’s enclosure rating, easy to read display, and overall features.
#3 Ohaus Defender Series
In our opinion, no washdown scale list is complete without at least mentioning the robust lineup of washdown scales under the Ohaus Defender banner. There are NUMEROUS choices available to meet just about any specification or requirement you can think of. In fact, I could have easily moved this selection up in our top 5 since they do have so many choices available.
For example, the Defender 6000 Series Extreme Washdown Bench Scale is specifically designed for food, chemical and pharmaceutical applications, including production and packaging. Defender 6000 handles the most demanding applications with 316 stainless steel platform and frame, and hermetically sealed stainless steel IP69K load cell. Defender 6000 meets metrological approvals, NSF listing, and supporting HACCP systems.
Meanwhile for those looking for a more simple stainless steel washdown scale, the Defender 3000 Washdown – i-D33 Stainless Steel Bench Scale for basic industrial washdown applications features a i-DT33XW weight display that is easy to read using the large, bright backlit LCD display. In Checkweighing mode display changes color (yellow/green/red) to alert when within the target weight range. This tough industrial scale features a 304-stainless steel platform and frame, IP67 load cell. The Ohaus i-DT33XW weight indicator features an IP66 washdown protected 304-stainless steel housing with mounting bracket. Great for parts counting, check weighing and totalization. Includes RS232 with optional USB Device or Ethernet for printing or data connectivity.
#4 Rinstrum X320
The Rinstrum X320 combines innovation in industrial design and engineering excellence to create a weight indicator that is ideal for use in food processing, automotive, chemical or pharmaceutical applications or basically any applications that require reliable operation in harsh environmental conditions. The Rinstrum X320 indicator builds on Rinstrum’s already successful R320 indicator that you’ve probably seen over the years. Constructed of a high tech plastic alloy that is food grade and chemical resistant, temperature resistant, and impact resistant.
The double “o” ring seal which provides great performance over traditional stainless steel enclosures. IP69K rating: the industry’s highest environmental protection rating – designed to withstand cleaning with high pressure water jets (1400psi) at high temperatures from multiple angles. The X320 features built-in check weigh function with 3 colored high intensity LEDs. Rinstrum also has a variety of scale bases to use with the X320 as well.
#5 Pennsylvania Scale Co
The Pennsylvania Scale Co now offers hygienic washdown scales & washdown indicators that feature an easy-to-clean design for demanding wet and washdown environments.
The Pennsylvania Scale Co 6500 Series washdown scales and weighing systems include indicators, washdown scales, and bases that provide high-performance, easy-to-clean designs for demanding wet and washdown environments. Systems are available as indicator only, bench scale only, bench scale and indicator, and bench scale, indicator, and column.
All 304 stainless steel construction, including hardware and load cell, helps to maintain sanitary requirements while delivering dependable performance in demanding environments, such as food manufacturing and food processing. Other hygienic design features include a fully sealed indicator, welded corners on the platform cover, and an open design base structure that won’t collect water or debris.
Choose from the simple interface 7400 WD or, for more advanced operation, the 7600/4 WD indicator. The Pennsylvania washdown lineup at this time features an IP66 to IP67 rating.
We put this lineup in our top 5 washdown scales list for several reasons. PA Scale items are generally well built and tend to last for many years. Many of the items are constructed in the USA so hopefully lead times should be reasonable. The scales feature a generous manufacturers limited warranty. And, we feel this company is heading in the right direction when it comes to quality, product development, leadership, etc… (We can’t say that for all our suppliers)
Well there you have it. Our top 5 washdown scales. It’s actually more than five, especially when you factor all the Ohaus Defender choices! If you need some help deciding amongst all these great washdown scales, just call our sales team at (919) 776-7737