Weigh it, print it, apply it — in one pass. Our dynamic weighing labelling machine captures each pack’s true weight, generates a unique price-weight label with barcode, logo and variable data, then applies it by non-contact blow-on at up to 20 packs/min. 304 stainless, moisture-proof, food-grade belt — built for fresh produce, trays and retail by-weight lines.
Some lines do not need a pack rejected — they need a pack identified. For products sold by weight, every single unit carries a different mass, a different price, and therefore a different label. Hand-weighing and pre-printed stickers cannot keep up: they are slow, error-prone, and legally risky when the printed weight disagrees with the real one. The Dynamic Weighing Labelling Machine removes the human from this loop entirely. As each product travels along the infeed belt it is weighed on a precision platform; the control software instantly converts that live weight — together with the unit price, batch, date and SKU held in the active template — into a unique variable-data label, sends it to the on-board thermal printer, and commands the applicator head to pick up the freshly printed label and place it on the product the moment a sensor confirms position. Weighing, printing and applying happen as a single continuous, synchronized motion.
Because the label content is generated from the measured weight, the number on the sticker and the number on the scale are always the same source of truth — eliminating the mismatch that triggers retail chargebacks and compliance failures. A visual template editor lets you design labels with barcodes, QR codes, logos, images and multi-line text, or import an existing format, so a new SKU is a template switch rather than a hardware change. The non-contact blow-on applicator presses nothing against the pack, protecting soft films, foam trays and delicate fresh produce from crush damage. Housed in 304 stainless steel with a food-grade belt and a built-in moisture-proof system, the unit thrives in the damp, wash-down reality of fresh-food and cold-chain packing, and links directly to upstream flow wrappers and tray sealers. In short: it turns a manual, mistake-prone labelling step into a fast, accurate, fully traceable inline process.
Application Industries
Anywhere a product is priced, dated or tracked by its actual weight, this weigh-print-apply system replaces the scale-and-sticker operator with a single automated station:
Fresh Produce & Supermarket Pre-Pack
Net-weight and unit-price labels with barcode/QR for bagged fruit, vegetables, salads and cut produce; the live weight drives the printed price so the till and the pack always agree.
Meat, Poultry & Seafood Trays
Variable price-weight labels on foam and MAP trays, including pack date, batch and store code, applied without deforming the soft film lid.
Bakery & Confectionery
Per-pack weight labels on wrapped loaves, cakes and bulk sweet bags where each unit varies in mass.
Cheese, Deli & Ready-Meal Portions
By-weight retail labelling for sliced and portioned goods, with full variable-data traceability.
Agricultural & Gift Packs
Net-weight declaration labels on bagged nuts, grains, dried fruit and gift assortments prior to dispatch.
Logistics & Warehouse Re-Pack
Shipping-weight and carton-content labels generated on the fly for re-packed or kitted goods.
Industry Pain Points & Professional Solutions
A weigh-print-apply station solves a cluster of labelling problems that fixed-label or manual systems simply cannot. Each is met here by a dedicated capability.
Challenge — Manual weighing plus hand-applied stickers is slow and inconsistent. An operator at a bench scale becomes the bottleneck, and fatigue introduces mislabelled packs. Response:The inline platform weighs, prints and applies automatically at up to 20 packs/min with no human in the loop, delivering consistent label placement (±3 mm) shift after shift.
Challenge — Pre-printed labels cannot show each pack’s real weight or price. By-weight goods legally require the actual mass and computed price on the label; a fixed sticker is non-compliant. Response:The variable-data engine builds every label from the measured weight in real time, so weight, price, barcode and date are unique per pack and always correct.
Challenge — The weight on the label disagrees with the weight at the checkout. Two separate systems (a scale and a printer fed by hand) drift apart, causing chargebacks, refunds and audit findings. Response:A single controller feeds the measured value straight into the print job — one source of truth, zero transcription, no mismatch between scale and sticker.
Challenge — Contact applicators crush soft packs and dent trays. A tamp or wipe-on head that presses the label down also presses the product, damaging film lids and delicate produce. Response:The blow-on (air-blow) applicator floats the label onto the surface with a puff of air — non-contact, no pressure, no product damage.
Challenge — Label layouts change constantly across SKUs, languages and promotions. Re-tooling a labeller for every new format means downtime and external design cost. Response:The on-board visual template editor lets you freely compose barcodes, images, logos and text, or import an existing template, so a format change is a software switch done in minutes.
Challenge — Damp, cold and wash-down environments kill electronics and curl labels. Fresh-food and cold-chain areas are humid; ordinary labellers corrode and labels peel. Response:A built-in moisture-proof system keeps the print-and-apply zone dry, while the 304 stainless frame and food-grade belt withstand cleaning and condensation.
Challenge — The labeller sits as an island, disconnected from the packaging line. Standalone labelling forces extra handling and breaks line flow. Response:The unit connects directly to upstream and downstream equipment such as flow wrappers and tray sealers, becoming a true inline station rather than a side process.
Core Product Features & Technical Advantages
Weigh-Print-Apply in One Pass
Weighing, label generation, printing and application are executed as one synchronized sequence on a single frame — no bench scale, no separate printer, no manual sticker placement.
Variable-Data Label Engine
Every label is built live from the measured weight plus the active template’s price, batch, date and SKU, producing a unique, compliant price-weight label per pack — the core requirement of retail by-weight selling.
Single-Source Data Integrity
Because the print content is driven directly by the scale reading through one controller, the printed weight can never diverge from the measured weight, removing the root cause of checkout mismatches and chargebacks.
Non-Contact Blow-On Applicator
The applicator head lifts the printed label and applies it with a controlled air blast, fitting it cleanly to the surface without pressing on the product — ideal for soft films, foam trays and fragile fresh produce.
Visual Label Template Editor
Barcodes, QR codes, logos, pictures and multi-line text can be freely arranged, or an existing label format imported directly, making SKU, language and promotional changeovers a quick software task.
Adjustable Product & Label Handling
Both product size and label size are adjustable (label area up to 120 × 100 mm), so one machine serves a wide mix of pack formats without mechanical rework.
Precision Weighing for Pricing
A weighing range of 2 g–5 000 g with ±1 g–±3 g accuracy and a 700 × 300 mm infeed belt provides the dependable mass value that retail pricing and net-weight declarations depend on.
Moisture-Proof & Food-Grade Construction
The integrated anti-humidity system keeps the print-and-apply zone dry, the 304 stainless steel body resists corrosion, and the food-grade belt meets hygiene demands of fresh-food and cold-chain lines.
Line-Integration Ready
Standard interfaces let the machine be coupled with flow wrappers, tray sealers and other packaging equipment, turning labelling into a continuous inline step rather than an offline operation.
Automatic Working Process
Product Infeed — The pack enters on the 700 × 300 mm feeding conveyor (product footprint up to 500 × 280 mm), presented singly for clean weighing.
Dynamic Weighing — The precision platform captures the pack’s true mass; this value becomes the master data for the label.
Variable-Data Generation — The control software combines the live weight with the template’s unit price, batch, date, barcode/QR and logo to compose a unique label image on the fly.
On-Demand Printing — The composed label is sent to the on-board thermal printer, which prints it at the exact moment it is needed — no pre-printed stock, no waste.
Label Pick-Up — The applicator head vacuums the freshly printed label from the liner.
Position Sensing & Blow-On Application — A sensor detects the pack in the apply position; the head releases the label onto the surface with a non-contact air blast, achieving ±3 mm placement without pressing the product.
Labelled Outfeed & Line Hand-Off — The finished, correctly labelled pack exits to the right and can pass straight into a downstream flow wrapper, tray sealer or cartoning station.
Technical Specifications
Parameter
Specification
Model
Online Weighing Labelling Machine (300)
Labelling Accuracy
±3 mm
Standard Labelling Speed
20 pcs/min
Applicable Product Size
Adjustable
Applicable Label Size
L × W: 120 × 100 mm
Weighing Range
2 g – 5 000 g
Weighing Accuracy
±1 g – ±3 g
Feeding Conveyor Size
L 700 mm × W 300 mm
Max Product Size
≤ L 500 mm × W 280 mm
Working Temperature
0 °C – 40 °C
Power Supply
400 W, AC 220 V ±10%, 50 Hz (60 Hz)
Machine Weight
≈ 200 kg
Frame Material
304 stainless steel
Conveyor Belt
Food-grade material
Application Method
Non-contact blow-on (air-blow)
Environmental Protection
Built-in moisture-proof / anti-humidity system
Label Content
Variable data: weight, price, barcode/QR, logo, image, text
Line Integration
Connectable to flow wrappers, tray sealers, etc.
Label size, weighing range, applicator type and communication interfaces can be tailored to your pack format, retail label standard and line layout.
FAQ
Q: Is this machine for rejecting bad packs or for labelling them?
For labelling them. Unlike a checkweigher or metal detector, its purpose is to measure each pack and print and apply a correct, weight-driven label — it creates the identification rather than removing product. It is the right choice wherever goods are sold or tracked by weight.
Q: Can it print a different price on every pack, like a supermarket scale?
Yes — that is exactly its core function. The label is generated from the live measured weight combined with the unit price in the template, so each pack gets its own correct weight, price and barcode, just like a retail price-weight label.
Q: Why use blow-on application instead of a pressing applicator?
Blow-on applies the label with air, not pressure. For soft films, foam trays, MAP lids and delicate fresh produce this prevents crush damage and dented packs — the label lands cleanly without the head ever touching the product.
Q: How do I change the label layout for a new product or promotion?
Through the on-board visual editor. You can freely arrange barcodes, QR codes, logos, images and text, or import an existing template, so a new format is a software change done in minutes — no mechanical re-tooling.
Q: Will the printed weight ever disagree with the real weight?
No. The print job is fed directly by the scale reading through a single controller, so the number on the label and the number on the scale are the same source of truth — eliminating the mismatch that causes checkout disputes.
Q: Can it survive a damp fresh-food or cold-chain environment?
Yes. The built-in moisture-proof system keeps the print-and-apply zone dry, the 304 stainless body resists corrosion, and the food-grade belt handles cleaning and condensation typical of fresh-food packing.
Q: Can it be added to my existing packaging line?
Yes. It is designed to connect with upstream and downstream equipment such as flow wrappers and tray sealers, so labelling becomes a continuous inline step rather than a separate manual operation.
Q: What pack and label sizes does it handle?
Product size is adjustable up to 500 × 280 mm on a 700 × 300 mm infeed belt, and label size is adjustable up to 120 × 100 mm — covering most tray, bag and carton formats used in by-weight retail packing.
Contact Us
Need to replace a slow, error-prone scale-and-sticker bench with a fast, compliant inline station?
Our application engineers will configure the right weighing range, label format, applicator type and line interface for your packs
Product Description
Submit Your Requirements
Please submit your requirement form, and we will customize the most suitable solution according to your needs.
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