The DCS-GF2 is a duplex gravity open mouth bag filling scale that packs granular materials and free-flowing powders into open mouth bags at 500 to 800 bags per hour with a weighing accuracy of ±0.2% FS. It runs two filling heads at once, which is why it is called a duplex or twin-head system, and it is built for industries that need fast, repeatable, net weight bagging such as fertilizer, animal feed, sugar, plastics, chemicals, and building materials.

This net weight gravity packing scale combines weighing, gravity feeding, conveying, and bag sewing into one automated line, so a single operator can run high volume packaging without weighing each bag by hand.

What Is a Duplex Gravity Filler?

A gravity filler is a bagging scale that lets material drop by gravity from a hopper into a weighing chamber, then into the bag, rather than pushing it with an auger or belt. This style of feeding suits materials that already flow well on their own, such as seeds, fertilizer granules, plastic pellets, sand, and crystalline powders.

A duplex configuration simply means two weighing and filling stations work side by side on the same frame. While one bag is being filled, the second station can be clamping, sealing, or preparing the next cycle, which is the main reason the DCS-GF2 reaches 500 to 800 bags an hour instead of the 200 to 400 bags an hour typical of single head gravity scales.

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Key Features of the DCS-GF2 Duplex Gravity Filler:

• Precise Weighing:
  The DCS-GF2 utilizes an intelligent weighing mechanism for precise filling with a tolerance of ±0.2%. Whether you’re working with granules or powdered substances, this scale ensures highly accurate packaging at high speeds.

• Automatic Gravity Feeding:
  Designed with a gravity feeding system, the DCS-GF2 uses gravity to move materials into the bag, which enhances the packaging speed and accuracy. The feeding rate can be adjusted for different material characteristics.

• High Packaging Speed:
  The DCS-GF2 boasts an impressive packing capacity of 500-800 bags per hour, making it ideal for high-volume operations in industries such as food processing, chemicals, and fertilizer production.

• Flexible Application:
  This bagging scale is versatile, able to handle materials like granular fertilizers, plastic pellets, grains, and powders. It’s suitable for industries that require bulk bagging or open-mouth bagging.

• Automatic Bagging Process:
  The DCS-GF2 system is fully automated, from bag clamping to weighing, filling, and sealing. This minimizes manual labor and speeds up the bagging process.

• Durable Construction:
  Made from stainless steel, the DCS-GF2 is corrosion-resistant and easy to clean, making it suitable for environments that require strict hygiene, such as the food industry.

• Customizable Dimensions:
  The system can be customized based on your operational requirements. The dimensions of the machine can be adjusted to fit the available space in your facility, ensuring optimal use of the workspace.

How the DCS-GF2 Works

1. Bag loading: The operator hangs an empty bag on the open mouth discharge spout.
2. Bag clamping: A pneumatic clamp grips the bag automatically so it stays in position during filling.
3. Gravity feeding: Material flows from the supply hopper into the weighing hopper. A flow gate regulates the rate, slowing down as the target weight approaches to limit overshoot.
4. Weight cutoff: Once the set weight is reached, the gate closes and the load cell confirms the figure is within ±0.2% tolerance.
5. Release and convey: The clamp releases the filled bag onto a conveyor.
6. Sewing and sealing: The bag travels to the sewing station, where it is closed and the cycle repeats.

This sequence runs continuously across both stations, which keeps the line moving without operators needing to stop the system between bags.

Technical Specifications of the DCS-GF2 Duplex Gravity Filler

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Materials and Industries It Serves

The DCS-GF2 is designed around granular materials and powders with good flow characteristics. Typical applications include:

• 農業だ： rice, seeds, animal feed pellets, granular fertilizer
• Chemical and plastics: compound fertilizers, plastic pellets, detergent powder, washing powder
• Building materials: cement, sand, and other dry granular aggregates
• Food processing: sugar, spices, soup mixes, and other dry ingredients

Because the feed mechanism relies on gravity rather than mechanical force, it performs best with materials that already flow freely. For sticky, fine, or poorly flowing powders, an auger or vibratory feeder is usually a better match, and that distinction is worth checking before specifying this machine.

Net Weigh vs Gross Weigh: Where the DCS-GF2 Fits

Bagging scales generally fall into two categories. Gross weigh scales hang the bag on the spout and weigh the product as it fills the bag directly. Net weigh scales, like the DCS-GF2, weigh the material in a separate hopper first and then drop the pre-weighed batch into the bag. This two-step approach typically gives:

1. Higher throughput, since the next batch can be weighed while the previous bag is being clamped or sealed
2. Better accuracy, because the fall distance into the bag is shorter and more controlled
3. Easier handling of bag changeovers without interrupting the weighing cycle

This is part of why the DCS-GF2 can sustain 500 to 800 bags per hour while holding a ±0.2% tolerance.

Build and Construction

The frame and contact surfaces are built in stainless steel, which resists corrosion and is easy to wash down, an important feature for food grade and chemical packaging lines where hygiene and cleaning frequency matter. The system is also customizable in footprint, so the dimensions can be adapted to fit an existing production line rather than forcing a facility to redesign its layout around the machine.

主な利点

• High output: 500 to 800 bags per hour from a duplex, twin-station design
• Consistent accuracy: ±0.2% FS weighing tolerance across the full 1 to 50 kg range
• Lower labor dependency: clamping, filling, conveying, and sewing run as one automated sequence
• Material versatility: suited to fertilizers, plastic pellets, grains, sugar, and similar free-flowing granules
• Hygienic and durable: stainless steel construction supports food grade and washdown environments
• Adaptable footprint: dimensions can be configured to match available plant space

よくある質問

What is the DCS-GF2 used for?

 It is used to bag granular materials and free-flowing powders, commonly fertilizer, animal feed, sugar, plastic pellets, and cement, into open mouth bags at high speed with automated weighing and sewing.

How accurate is the DCS-GF2 bagging scale?

 It holds a weighing accuracy of ±0.2% FS across weighing ranges from 1 kg up to 50 kg.

How many bags per hour can it pack? 

The DCS-GF2 packs 500 to 800 bags per hour, which is roughly double the rate of the single station DCS-GF model in the same series.

Is a gravity filler suitable for powders that do not flow well?

 Gravity fillers work best with free-flowing granules and powders. Materials that are sticky, very fine, or prone to clumping are usually better suited to auger or vibratory feed systems instead.

What is the difference between the DCS-GF, DCS-GF1, and DCS-GF2? 

All three share the same ±0.2% accuracy and 1 to 50 kg weighing range, but they differ in packing speed and physical size: the DCS-GF runs 200 to 300 bags per hour, the DCS-GF1 runs 250 to 400 bags per hour, and the DCS-GF2 runs 500 to 800 bags per hour as the duplex, highest capacity model.