Chemical Industry Packaging Line Solutions
A fully automatic end-of-line system for powders and granules — from filling and weighing to sewing, double-check, robotic palletizing and stretch wrapping. Metal detection and check-weighing sit inline between the sewing machine and the palletizer, so off-spec bags never reach the warehouse. Optional explosion-proof configuration for hazardous-area installations.
Request a Quote View EquipmentHow the Line Runs
The sequence below is the standard bagged-powder layout. Each station hands off to the next by conveyor; rejects are automatically diverted, and the palletizer builds stable layer patterns onto wooden or plastic pallets before a rotary arm wrapper secures the load.
Auto Filling
Powder / granule into pre-made bag
Weighing Scale
Net weight checked per bag
Bag Sewing
Heated or thread sewn closure
Bag Flattening
Bag leveled for stable palletizing
Inclined Conveyor
Raises bags to inspection level
Metal Detector
Ferrous / non-ferrous / stainless scan
Weight Checker
Second weight verification inline
Rejector
Off-spec bags diverted to side lane
Pallet Magazine
Auto feeds empty pallets to robot
Palletizing Robot
Layer pattern programmed by HMI
Rotary Arm Wrapper
Film wrapped while pallet stays still
Outfeed
Forklift pickup to warehouse
Core Equipment on the Line
All machines are selected to run in lockstep: the filler’s bag count feeds the checkweigher, the rejector triggers on either metal or weight fault, and the robot calls a new pallet from the magazine automatically.
Automatic Filling Machine
Gross or net weigh filler for 10–50 kg open-mouth bags. Screw, belt or vibration feeding depending on product flow characteristics, with dust-tight spout and bag-clamp seal.
View Filling Machines →Quantitative Weighing Scale
Load-cell weighing integrated into the filler to close the dosing loop. Dosing cut-off and slow-feed phases are set on the HMI to hold ±0.2% across the bag range.
View Filling & Weighing →Automatic Bag Sewing Machine
Continuous bag-closer with heavy-duty sewing head and tape folder. Handles paper, woven PP and laminated bags; thread break and bag-out sensors stop the line.
View Sealing Machines →Bag Flattening & Leveling
Vibration roller flattens the bag and settles powder evenly. A flat, square bag layers cleanly on the pallet and won’t tip during transport.
View Conveying Equipment →Inclined Conveyor
Raised belt or cleated conveyor moves sealed bags from filling floor level up to the metal detector and checkweigher inspection line.
View Conveyors →Metal Detector
Free-Fall or gravity-channel detector calibrated for wet, salty or conductive products. Identifies ferrous, non-ferrous and stainless contaminants and triggers the rejector.
Integrated inline between sewing and check-weighing.
Weight Checker & Rejector
Inline checkweigher re-measures the sealed bag and compares it against the set weight. Out-of-tolerance bags — light, heavy or metal-contaminated — are blown or diverted to a reject bin.
Data logged for batch traceability.
Palletizing Robot
4- or 6-axis robot with bag gripper builds programmable layer patterns (pinwheel, column, interlocked). A pallet magazine automatically supplies empty wooden or plastic pallets.
View Palletizers →Rotary Arm Stretch Wrapper
The arm rotates around a stationary pallet — ideal for tall or unstable loads. Top-sheet and film prestretch options keep finished pallets dust-tight for warehouse and container loading.
View Stretch Wrapping Machines →Technical Specifications
Typical configuration for a 10–50 kg bagged chemical powder line. Explosion-proof versions carry ATEX-rated electrical components, purge systems and stainless-steel wet-contact parts.
| Chemical Packaging Line — Typical Range | |
|---|---|
| Bag weight range | 10–50 kg per bag |
| Filling accuracy | ±0.2% of target weight |
| Line capacity | 8–20 bags / minute |
| Equipment count | 9–11 units (filler, weigher, sewer, flattener, conveyor, metal detector, checkweigher, rejector, palletizer, wrapper, outfeed) |
| Footprint | Approx. 20 × 8 m |
| Power supply | 380V / 50 Hz three-phase, approx. 55 kW |
| Compressed air | 0.6–0.8 MPa, approx. 2.0 m³/min |
| Explosion-proof | Optional ATEX-rated configuration for Zone 2 / Zone 22 environments |
Final capacity, accuracy and footprint depend on product bulk density, bag type and local electrical classification. All figures are confirmed during engineering design.
Why This Line Fits Chemical Production
Dual Quality Inspection
Metal detector and checkweigher sit in series, not as afterthoughts. A bag with a wire fragment from upstream equipment or a 500 g underfill is rejected before it is palletized — two failure modes covered on one conveyor lane.
Dust-Tight Filling Design
The filler spout clamps to the bag mouth, and exhaust air passes through a cartridge dust collector. Less powder in the air around the machine means a cleaner workspace and lower housekeeping load on operators.
High Weighing Accuracy
Two-stage dosing (fast then slow feed) and load-cell feedback hold ±0.2% across the full 10–50 kg range. Overfill waste and underfill complaints both drop compared with manual or semi-automatic bagging.
Minimal Operator Exposure
Operators load empty bags at the filler station and monitor the HMI; they do not stand beside open product during filling, sewing or palletizing. For corrosive, dusty or allergenic powders, that’s a real safety improvement.
Products This Line Handles
Chemical Powders
Industrial chemicals, pigments and fine powders. The dust-tight filler and sealed spout prevent airborne product loss and cross-contamination between runs.
Fertilizer Granules
NPK, urea and compound fertilizers. Corrosion-resistant wet-contact parts handle dusty, abrasive granule product through filling, sewing and palletizing.
Plastic Resin Pellets
PP, PE and PET pellets. The belt or vibration feeder handles free-flowing pellets without damaging them, and the checkweigher catches under-filled bags.
Detergent Powder
Washing powders and cleaning compounds. The line doses accurately, sews the bag flat and palletizes clean, retail-ready packs.
Cement Additives
Gypsum, fly ash and specialized admixtures. Heavy-duty construction and dust collection keep the line running reliably in a harsh, fine-powder environment.
Built to International Standards
CE Marking
Machinery meets EU health & safety directives, including optional ATEX categories.
ISO 9001
Manufactured under a certified quality management system.
SGS Inspection
Third-party factory and product inspection available on request.
12-Month Warranty
Parts and labor covered from commissioning date.
Lifetime Support
Remote diagnostics and spare parts for the machine’s full service life.
Frequently Asked Questions
Can the line be built for an ATEX hazardous area?
Yes. We offer an explosion-proof package covering Zone 2 (gas) and Zone 22 (conductive dust): flameproof or intrinsically safe electrical components, purge-and-pressurized control cabinets, anti-static belting, stainless-steel wet-contact parts and bonding/grounding throughout. The classification is set by your risk assessment and we design to match.
What bag formats does the filler handle?
Standard open-mouth bags in paper, woven PP/PE and laminated film, from 10 kg to 50 kg. Bag loading can be manual (one operator at the spout) or fully automatic with a bag placer. We also supply valve-bag versions for fine powders that require a dust-tight sealed closure.
How does the rejector handle rejected bags?
A pneumatic pusher or air blast diverts bags flagged by the metal detector or checkweigher into a side reject lane. The event is logged with timestamp, bag number and reason (metal / underweight / overweight) so QA can review batches. Rejected bags do not reach the palletizer.
Why use a rotary arm wrapper instead of a turntable?
For heavy or unstable pallet loads — bags of powder can shift if spun — the rotary arm wraps while the pallet stays on the floor. There is no centrifugal force on the load, and pallets can be very tall or slightly off-center without tipping. It also integrates cleanly with an infeed/outfeed conveyor line.
How many people are needed to run the line?
Two operators: one at the bag-loading station and one monitoring the HMI, reject bin and film replenishment. The palletizer and wrapper run unmanned. For fully automatic bag placement, one operator is enough to watch the line and handle changeovers.
Can you connect the line to our MES / ERP?
Yes. The PLC logs bag counts, weight readings, reject events and wrap cycles. We provide OPC UA / Modbus TCP data export so your MES or ERP can pull production and QA data directly. Recipe recall by SKU is also supported.
Get a Custom Chemical Packaging Line Quote
Tell us your product type (powder, granule, pellet), bag weight and daily output. Our engineers will reply with a line layout, equipment list, capacity estimate and budget price within one business day. ATEX classification is quoted separately based on your site’s hazardous-area zoning.
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