Central Carolina Scale
Stainless Steel Digital Check Weigh Scales

CheckWeigher

Over, under, accept is what is typically shown on the front of a check weigher. Checkweighers are designed to add efficiency to manufacturing, sorting, and food-processing applications. Product weight is checked to be within a preset range or target. Hit the target weight everytime with a check weigh scale from Central Carolina Scale. From the easy to use Doran 7400 series checkweigher to the 2200CW series with a 250 product database, versatile network capabilities, and powerful process control capabilities, all our accurate check weigh scales feature over, under, and accept lights so you'll be able to see the if your product meets specs. Contact us and we can send you the article, "5 Benefits of Using a Checkweigher Scale" which will help you discover what your company can gain by using an over / under / accept scale. One note, often customers will use the term checkweighing and apply it to many things, for example when they're placing packages on a Mettler Toledo PS60 shipping scale which really doesn't have the over/under functionality.  

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    Avery Weigh-Tronix ZQ375 CheckweigherFeaturing food-grade, fully stainless steel construction, the Avery Weigh-Tronix ZQ375 Checkweigher is a highly efficient solution for the food industry and beyond. The AWTX ZQ375 Over/Under Checkweigher can help you to maximize performance and profitability while meeting strict legislative requirements.
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    Doran 2200CW Check Weigher Scale SystemStore, recall, and weigh with the Doran Scales 2200CW database. This internal database will store up to 250 Checkweigh Tolerances, Tare Weights, Accumulation and Counter totals, and six-digit Product IDs. Recalling a product from the database is as simple as pressing the PROD button and entering the ID.
  • doran-4300-stainless-steel-checkweigh-scale.jpg
    Doran 4300 Checkweigh Scale304 Stainless Steel construction and the exclusive, innovative Doran gasket design exceeds IP69K and NEMA 4X classifications for washdown protection. Set over/under tolerances right from the front panel using the Up/Down arrow buttons. Checkweigh with 3- or 5-zone checkweighing operations.
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    Doran 7400 One Button Checkweigher304 Stainless Steel construction and the exclusive, innovative gasket design for washdown protection. Simple, one-button operation, what could be easier? Press Zero and the bright red LED display shows 0.00. Over-Accept-Under indicators can be used to check if the product being weighed meets a target weight.
  • cardinal-scale-admiral-190-bench-scale.jpg
    Cardinal Scale Admiral Series Cardinal Scale Admiral Series features American-made quality, extremely heavy-duty platform, flow-through column design to eliminate water and material buildup, paired with the 190 Storm indicator, extreme temperature & water-pressure resistance, serial port, ColorZone checkweighing, & power options.
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    Rice Lake CW-90X Washdown CheckweigherFor heavy wash down environments and HACCP requirements, choose Rice Lake's CW-90X. The over/under CW-90X checkweigher features hermetically sealed load cells, 304 stainless steel construction, extra-strength piezo keypad, and an IP69K rating to survive daily sanitary washdowns.
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    Rice Lake CW-90 Over/Under CheckweigherEase of use, real time data collection, and rugged stainless steel construction make the CW-90 the equipment of choice for operators, quality control and maintenance departments. Enjoy the convenience of a full numeric keypad.
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    CAS Enduro Extreme Check WeigherThe CAS Enduro Extreme check weigher scale is perfect for use in meat, poultry, seafood processing and other HARSH industrial applications. Increase productivity and reduce long term cost of ownership with the most dependable indicator & platform available. 10" x 10" to 15" x 15" and capacities from 2 lbs to 200 lbs.
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    Brecknell C3235 Portable CheckweigherBrecknell C3235 is a watertight checkweighing scale for the rapid indication of over, under or acceptable weight in a washdown environment. This check weigher is available in three models from 6 lb (3 kg), 12 lb (6 kg) and 30 lb (15 kg) capacity with readabilities down to 0.001 lb (0.0005 kg).

How Does a "Check Weigher" Work?

The basic premise of a checkweigher is that it will allow you to setup an ideal target weight that you would like to reach and then an acceptable range of weights plus or minus that will also work for your application. For example, let's say you're weighing bags of assorted bolts, washers, and nuts that you include in a parts kit you sell. When the bag is correctly filled it weighs exactly one pound. You could set your target weight as 1.0 lbs. You can set your under tolerance at 0.98 lbs and your upper tolerance at 1.02 lbs.

Of course, you can experiment with these tolerances and fine tune them if needed. Now when you place your parts bag on the scale the green light will appear anytime a bag displays a weight of 0.99, 1.00, or 1.01 lbs. A yellow light will appear for anything equal to or less than 0.98 lb. This will let the scale operator know that some item is missing from the bag. Likewise, a red light will appear for any weight that shows 1.02 lb or higher. This means that there is some extra part in the bag, which means you're giving away extra assembly parts.

Important Features Like Stainless Steel Construction, Displays, & Hi Speed

If you're in the food industry, then stainless steel, wash down safe scales are important to meet stringent food hygiene requirements. Some of our check weighing scales are certified by NSF to NSF/ANSI Standard 3-A, such as the ZQ375 Checkweigher which has been specifically designed to meet the stringent hygiene requirements of the food processing industry with IP69K rated for heavy washdown environments. In addition to the enclosure, it's important that scale operators be able to actually see the weights. The Cardinal 190 STORM’s 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.

In many cases it's important to choose a NTEP approved scale that is legal for trade, making it suitable for use in commercial applications where product is sold by weight. It's important to choose a scale that is going to provide you with the performance you need. Do you need connectivity to integrate with your back office systems via Wireless, USB or Ethernet? How about the ability to connect to a label printer? Finally, in addition to standard counter top scales, we do have a hi speed checkweigher available. However, you will need to fill out a form in order for that to be quoted.  

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