what is a Packaging Scale？

what is a Packaging Scale？

Packaging Scale (DCS Series Quantitative Packaging Scale)
A packaging scale is an automatic quantitative weighing and bagging equipment, commonly used for open pocket woven bag packaging. It is also used at the end of fertilizer, grain, feed, and granule/powder production lines. DCS type quantitative packaging scales are commonly used in organic fertilizer and compound fertilizer production lines.

Packaging scale workflow (fast and slow dual speed feeding)

1. Manual bagging and automatic clamping of bag clamping mechanism
2. Quick addition (coarse weighing): Add 90% to 95% of the target weight
3. Slow feeding (precise weighing): Micro feeding to ensure accuracy
4. After weighing and stabilizing, unload the material into the bag
5. Loosen the bag, drop it onto the belt conveyor, and send it to the sewing machine for sewing, repeating the process

Main classification of packaging scales

1. By material
Particle packaging scale: organic fertilizer particles, compound fertilizers, grains, feed particles, biomass particles (gravity feeding, not easily clogged)
Powder packaging scale: humic acid powder, talc powder, flour, spiral feeding, with dust removal, arch breaking and anti bridging measures
Ton bag packaging scale: 500-1000kg large bags
2. By weighing method
Net weight scale (bucket type): weigh the material first in the weighing bucket before discharging, with high accuracy; Suitable for fertilizers with high precision requirements
Gross weight scale: directly weigh bags and materials, with a simple structure and low price
3. According to structure: single bucket, double bucket (double bucket has faster speed, one bucket weighs and one bucket unloads); Pneumatic and electric models (electric models are becoming increasingly popular and easy to maintain)

Common parameters of packaging scales (fertilizer industry)

Packaging specifications: 5-50kg/pack (organic fertilizer, compound fertilizer mainstream 25kg, 40kg, 50kg)
Speed: about 6-10 packs per minute per bucket; Double Fight 12-16 packs/minute
Accuracy: ± 0.1% to ± 0.2%
Supporting equipment: belt conveyor+automatic sewing machine; Can be connected to palletizing robots to form a complete packaging line

Key points for selecting organic fertilizers (emphasis)

Characteristics of organic fertilizer: high humidity, fiber content, easy bridging, and high dust. Preferred selection: particle packaging scale with arch breaking device, dust removal interface, enlarged hopper, and wear-resistant discharge port; Choose a spiral powder scale for powdered organic fertilizer, and do not use a regular particle scale directly, as it is prone to clogging and floating materials.

List of complete packaging scale accessories

Quantitative packaging scale host → belt conveyor → automatic sewing machine → (optional) bag pouring machine, vibrating bag machine, climbing belt, palletizing machine