High speed in-motion checkweigher / automaic check weighter scale / check weighter machine
Checkweighers can operate at very high speeds, processing products weighing fractions of a gram at over 100m/m (meters per minute) and materials such as pharmaceuticals and 200 lb bags of produce at over 100fpm(feet per minute). They can be designed in many shapes and sizes, hung from ceilings, raised on mezzanines, operated in ovens or in refrigerators. Their conveying medium can be industrial belting, low-static belting, chains similar to bicycle chains(but much smaller), or interlocked chain belts of any width. They can have chain belts made of special materials, different polymers, metals, etc.
Checkweighers are used in cleanrooms, dry atmosphere environments, wet environments, produce barns, food processing, drug processing, etc. Checkweighers are specified by the kind of environment, and the kind of cleaning will be used. Typically, a checkweigher for produce is made of mild steel, and one that will be cleaned with harsh chemicals, such as bleach, will be made with all stainless steel parts, even the Load cells. These machines are labeled "full washdown", and must have every part and component specified to survive the washdown environment.
Quality management can use a checkweigher for Nondestructive testing to verify finished goods using common Evaluation methods to detect pieces missing from a "finished" product, such as grease from a bearing, or a missing roller within the housing.
Checkweighers are also used for Quality management. For instance, raw material for machining a bearing is weighed prior to beginning the process, and after the process, the quality inspector expects that a certain amount of metal was removed in the finishing process. The finished bearings are checkweighed, and bearings over- or underweight are rejected for physical inspection. This is a benefit to the inspector, since he can have a high confidence that the ones not rejected are within machining tolerance. A common usage is for throttling plastic extruders such that a bottle used to package detergent meets that requirements of the finished packager.
Parameter details :
| | VC-10 | VC-15 | VC-22 | VC-30 | VC-40 | VC-25(Two belt) | VC-100 |
| Model Name |
| Weight range (g) | 3-100 | 3-300 | 10-1200 | 30-3000 | 50-1000 | 50g-25kg | 1kg-100kg |
| Mini weight accuracy (g) | ±0.1 | ±0.3 | ±0.5 | ±1 | ±0.5 | ±5g | ±10g |
| Mini screen value (g) | 0.01 | 0.1 | 0.1 | 0.1 | 0.1 | 0.5 | 1g |
| Max weigh speed (Bags /Minute ) | 20 | 330 | 210 | 180 | 180 | 50 | 20 |
| Belt speed | 0 | 16-118 | 13-96 | 13-96 | 13-96 | 13-78 | 3-15 |
| (Meter/minute ) |
| Suitable product length (mm) | - | 60-180mm | 60-300mm | 60-420mm | 60-500mm | 60-420mm | - |
| Suitable product width (mm) | - | 30-150mm | 30-200mm | 30-250mm | 30-400mm | 30-380mm | - |
| Suitable product height (mm) | - | 10-130mm | 10-200mm | 10-330mm | 10-330mm | 10-430mm | - |
| Weigh zone size (mm L*W) | - | 270*110 | 400*220 | 500*300 | 500*400 | 800*600 | 1000*800 |
| Note | Non-standard (without belt) | High accuracy | Small common model | Customized model | Customized model | Common model for Box | Roller end belt |
| Reject device optional | Pin Rod /Push rod /air blast /divided flow /drop down /flap drop (Optional ) |
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