Double your grading throughput with the 300 Dual-Channel Weight Sorting Machine. Two parallel weighing lanes, swing-arm rejection, ±1 g sensitivity and a climate-controlled cabinet. Built for aquatic products, fresh produce and parcel logistics. Get a factory quote.
Where a single-belt grader becomes the bottleneck on a busy line, the 300 Dual-Channel Weight Sorting Machine answers with parallel processing: two independent weighing lanes running side by side inside one compact frame. The result is a near-doubling of effective grading capacity without doubling your floor space, your power draw, or your operator headcount.
Each lane carries its own load cell, its own high-speed A/D sampling module and its own swing-arm reject station, so the two tracks are calibrated, controlled and serviced independently. A product that mis-tracks on Lane A never disturbs the reading on Lane B. This decoupled, twin-track architecture is purpose-built for aquatic products — whole fish, shellfish and portioned seafood — and for the logistics / parcel sector, where mixed SKUs must be size- and weight-routed at line speed.
What truly sets the 300 series apart in harsh plants is its self-contained climate management: an on-board air-conditioning circuit cools the electronics while an integrated dehumidifier keeps humidity in check, holding weighing stability in hot, steamy or coastal workshops where ordinary checkweighers drift and fail. Add a 100-recipe touchscreen, food-grade SUS304 construction and a gentle swing-arm ejection that protects delicate goods, and you have a grader engineered for uptime, not just for speed.
Application Industries
The dual-lane layout and ≤500 g checking window make this platform a natural fit for high-mix, high-moisture and high-throughput operations:
Aquatic & Seafood Processing
the primary design target: whole and gutted fish, shrimp, scallop, abalone, clam and portioned fillets graded by weight across two lanes.
Logistics, Parcel & E-commerce Fulfilment
size- and weight-based routing of small packs, pouches and cartons, where twin lanes absorb peak dispatch volumes.
Fresh Produce Packing
apples, oranges, carrots, onions and similar fruit/vegetable lines that need fast size-banding before tray-packing.
Tea, Herb & Leaf Grading
bulk-leaf and dried-botanical lines (as pictured) where consistent portion weight protects brand specification.
Small-Cut Meat & Poultry
diced, sliced or deboned portions within the 500 g ceiling, divided into retail-ready weight bands.
Industry Pain Points & Professional Solutions
What slows your line down today
How the 300 Dual-Channel answers it
Single-lane ceiling: one belt can only grade so fast, so you either lose throughput or buy a second machine and a second footprint.
Two lanes, one frame: parallel weighing tracks lift effective output dramatically while occupying roughly the footprint of a single-line grader.
Heat & steam wreck the electronics: tropical, coastal and wash-down plants push cabinets past their limits, causing drift, condensation and premature board failure.
Climate-controlled cabinet: a built-in air conditioner plus an integrated dehumidifier stabilise the internal environment from 0–40 °C and 30–95 % RH, keeping the load cells honest.
Cross-talk between products: a jam or splash on one belt contaminates the reading of the next item on a shared scale.
Decoupled dual modules: each lane has its own load cell and A/D sampling channel, independently zeroed and calibrated, so the tracks never interfere.
Bruised or broken goods at the reject point: hard pushers and air blasts damage soft fish, ripe fruit and fragile packs.
Swing-arm gentle rejection: a controlled pivoting arm nudges off-spec items aside with far less impact than a slam-push, preserving product integrity.
Long changeovers between SKUs: re-tuning a grader for a new species or pack size eats productive minutes every shift.
100-recipe touchscreen memory: recall a saved product profile in seconds; the HMI restores target bands, belt speed and reject timing at one touch.
Core Product Features & Technical Advantages
win-Track Parallel Architecture
Two fully independent weighing and rejection lanes share a single SUS304 frame, delivering double-lane capacity from a single operator station.
Independent Dual Load Cells
Separate sensing and high-speed A/D sampling per lane guarantee stable, isolated readings even under uneven feeding.
Swing-Arm Reject Mechanism
A pivoting arm diverts out-of-tolerance items smoothly, ideal for soft, wet or easily marked products where pushers or air jets cause damage.
On-Board Climate Control
Internal air conditioning and a dehumidifier protect the controller and load cells from heat, condensation and salt-laden air, extending calibration life.
High-Speed A/D Sampling Module
Rapid signal conversion locks the weight value during motion, supporting accurate grading at the full 20–70 bpm belt range.
100-Recipe Touchscreen HMI
Store and instantly recall product setups; intuitive graphics cut training time and changeover downtime.
Compact Footprint, Doubled Output
Get two-lane throughput without the space, cabling and labour cost of two separate machines.
Hygienic SUS304 Build
Corrosion-resistant stainless frame and easy-clean surfaces suit wet seafood and produce environments and simplify wash-down.
Technical Specifications
Parameter
Value
Lane / Channel Configuration
2 (Dual-Channel, parallel)
Checking (Weighing) Range
≤ 500 g
Weighing Sensitivity
±1 g ~ ±3 g
Picking / Sorting Accuracy
±3 mm ~ ±4 mm
Conveyor / Belt Speed
20 ~ 70 bpm (per lane)
Max Product Length
≤ 200 mm
Max Product Width
≤ 130 mm
Infeed Hopper — Length
350 mm
Infeed Hopper — Width
200 mm
Rejection Device
Swing Arm (per lane)
Operation / HMI
Colour Touch Screen
Controller
High-Speed A/D Sampling Module
Saved Product Recipes
100
Power Supply
AC 220 V ±10 %, 50 / 60 Hz
Operating Temperature
0 °C ~ 40 °C (on-board air conditioner)
Operating Humidity
30 % ~ 95 % RH (integrated dehumidifier)
Frame Material
SUS304 Stainless Steel
Throughput note: the 20–70 bpm figure is per lane; running both lanes together yields a combined line rate that approaches double a comparable single-lane grader at the same belt speed.
Automatic Working Process (Dual-Lane)
Split infeed — product is distributed across the two infeed hoppers (350 × 200 mm each), forming two orderly, single-file streams.
Parallel transfer — each stream rides its own blue weighing belt; the two lanes run simultaneously and independently.
Dynamic weighing — as an item crosses its lane’s load cell, the high-speed A/D module captures and stabilises the weight in real time.
Zone comparison — the controller matches the reading against the active recipe’s weight bands and computes the correct destination.
Swing-arm ejection — the corresponding lane’s swing arm pivots at the exact moment to guide the item into its graded outlet; in-tolerance items pass straight through.
Graded collection — separated weight/size classes exit on the white discharge conveyors, ready for packing, labelling or dispatch.
Because both lanes execute this cycle at the same time, the line’s graded output is the sum of two parallel streams, not a single serial one.
FAQ
Q1: Why choose a dual-channel grader instead of two single-lane machines?
A single 300 Dual-Channel unit gives you two-lane capacity from one frame, one power feed and one operator, saving floor space, installation cost and ongoing labour versus buying and aligning two separate sorters.
Q2: When is a swing-arm rejector the right choice?
Swing-arm rejection is preferred for soft, wet or easily bruised goods — whole fish, ripe fruit, delicate packs — because the pivoting arm guides the item aside with controlled, low-impact motion, unlike a hard pusher or a high-pressure air blast.
Q3: What does the on-board air conditioner and dehumidifier actually do for me?
They hold the internal electronics at a stable temperature and humidity regardless of the plant environment. In hot, steamy or coastal facilities this prevents condensation and thermal drift, so the load cells stay accurate and the control boards last longer.
Q4: Can it grade wet, iced or dripping seafood reliably?
Yes. The SUS304 frame, sealed sensing path and high-speed A/D sampling are designed for moist aquatic products, and the dual independent lanes keep one wet mis-feed from disturbing the other track. Routine wash-down and belt cleaning keep accuracy at its best.
Q5: How do I decide between the 300 Dual-Channel and a single-lane model?
If your line is volume-bound and your products sit within the ≤500 g / ≤200 × 130 mm window, the dual-channel layout pays for itself in throughput per square metre. For lower volumes or larger single items, a single-lane grader may suffice — our team will size the right configuration from your line data.
Contact Us
Planning a twin-lane upgrade for your seafood, produce or logistics line? Send us your product photos, target weight bands and required pieces-per-minute, and we will recommend the optimal lane configuration and reject style.
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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