FA-CW Series Inline Checkweigher: Dynamic Weight Inspection with Upper Flip Reject
Every package that leaves your line carries a weight promise to the retailer and the consumer. An underweight pack triggers a customer complaint or a retailer fine. An overweight pack quietly wastes product margin on every unit. A manual scale at the end of the line cannot catch either one fast enough — and sampling always misses the one bad package that matters.
The Fanchi-tech FA-CW series is an inline dynamic checkweigher built to sit on your packaging line and weigh every single package at full production speed. The machines in these photos were photographed on our Shanghai assembly floor, showing the double-belt layout that separates good product from rejected product on one continuous flow.
How the Upper Flip Reject Works
This FA-CW unit uses a two-level conveyor layout:
- Upper main belt — product enters from the feeder, passes over the weighing section, and continues forward if the weight is within the set limit.
- Upper reject layer — when a package reads underweight or overweight, the pneumatic flip mechanism reverses and diverts the pack onto the dedicated upper reject conveyor, so good product never stops and rejected product never mixes back into the good flow.
This keeps two streams physically separated: accepted packs continue down the line to packing or palletizing, rejected packs collect on the reject belt for operator inspection. No manual sorting, no line stoppage, no confusion about which pack failed.
Weight Ranges and Speeds Across the FA-CW Series
The FA-CW range covers light sachets through large cartons. Match the model to your pack weight:
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Model
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FA-CW160
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FA-CW230
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FA-CW300
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FA-CW360
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FA-CW450
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Detecting Range
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3~200g
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5~1000g
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10~4000g
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10g~10kg
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10g-10kg
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Scale Interval
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0.01g
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0.1g
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0.1g
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1g
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1g
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Detecting Accuracy
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±0.1g
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±0.2g
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±0.3g
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±1g
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±1g
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Detecting Speed
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250pcs/min
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200pcs/min
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150pcs/min
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120pcs/min
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80pcs/min
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Weigher Size(W*L mm)
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160x200
/250/300 |
230x250
/350/450 |
300x350
/450/550 |
360x450
/550/800 |
450x550
/700/800 |
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Material of Construction
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Stainless Steel 304
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Belt Type
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PU Anti Static
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Line Height Options
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700,750,800,850,900,950mm +/- 50mm(can be customized)
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Operation Screen
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7-inch LCD Touch Screen
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Memory
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100 kinds
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Weigh Sensor
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HBM high accuracy load cell
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Data Retrival
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USB Port(Standard); Ethernet/RS232(Optional)
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Conformity
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CE (Declaration of Conformityand Declaration of Manufacturer); UL(certified by our US customer)
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Software Language
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English(Spanish/French/Russian, etc optional)
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Rejector
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Flipper/Pusher/Flapper/Air Blasting/Drop-down,etc(Optional)
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Choose by actual pack weight, not nominal label weight. Send us your product range and line speed, and we will match the model.
Built for the Food Packaging Floor
The machine you see in the photos reflects the standard FA-CW construction:
- SUS304 stainless steel frame and contact surfaces for food hygiene and easy cleaning
- White food-grade PU belt safe for direct food contact
- 10-inch color touchscreen HMI for easy limit setting, recipe storage and weight records
- Tower signal light — green pass, amber warning, red reject/fault status visible across the line
- Transparent acrylic guard over the weighing zone for operator protection while keeping the process visible
- Pneumatic reject operating at 0.4–0.6 MPa plant air
- Adjustable feet for level installation on uneven factory floors
- Recipe memory so operators switch between products in seconds
Beyond flipper/flip reject, other reject options are available — air blast, pusher, drop-down and up-lift — to fit pack shape, speed and floor layout.
What the Checkweigher Does for Your Business
- Stops underweight shipments before they reach the retailer or consumer
- Cuts giveaway on overweight packs — recover margin that ordinary manual checking leaves on the table
- Produces weight statistics for audit, HACCP records and retailer compliance
- Runs unattended at line speed without adding headcount
- Integrates inline with filler, sealer, cartoner and downstream packing equipment
Suitable Products
- Snack sachets, coffee and tea bags, seasoning pouches
- Confectionery, biscuit and cereal boxes
- Ready meals, processed meat and cheese packs
- Dairy and nutraceutical sachets
- Mid-size cartons, 1–15kg bags
- Large cartons and sacks up to 60kg (CW-60K)
Why Buy from Fanchi-tech
Shanghai Fanchi-tech Machinery Co., Ltd. has built food inspection equipment since 2010 and ships checkweighers, metal detectors and X-ray systems to 30+ countries. Our machines use standard off-the-shelf components that your local technician can service — no proprietary lock-in. Every unit leaves our floor after calibration and a continuous run test. A 12-month parts and service warranty covers every machine.
Frequently Asked Questions
Can it reject both underweight and overweight at the same time?
Yes. You set the upper and lower limits on the HMI. Anything outside the band is diverted to the reject belt; anything inside passes through.
Do we need compressed air on site?
The flip reject works on plant compressed air at 0.4–0.6 MPa. Check your air supply before ordering; we will specify exact consumption in the quotation.
Can the reject mechanism be changed later?
Yes. Flipper, air blast, pusher, drop-down and up-lift reject options are available depending on model and pack type.
How fast is the machine for our line?
Speed depends on pack weight and belt size — from 180 pcs/min on light sachets to 60 pcs/min on 60kg cartons. Tell us your current line speed and we confirm a match.
Do you provide calibration and training?
Yes. We ship a calibrated machine with operation and maintenance manuals, plus remote installation guidance and operator training; on-site engineer support is available on request.
Test It on Your Own Pack
Send us a few sample packages and your target weight range. We run them on the matching FA-CW model on our floor and send back the weighing report — so you see the accuracy before you order.
Contact: Kerry
- Email: kerry@fanchitech.net
- Mobile / WhatsApp: +86 13917555254
- Website: https://www.fanchitechnology.com/
- YouTube: https://youtube.com/@fanchitech3323
Post time: Oct-16-2026