How a Rotary Granule Weighing Filling Production Line Works

What This Rotary Filling Line Is Designed to Do

The Rotary Granule Weighing Filling Production Line is a fully automated rotary positioning filling system built for cylindrical containers. Unlike linear filling systems that move containers in a straight path, the rotary design positions containers through multiple filling stations in a continuous circular sequence. Precise servo motor positioning controls container placement at each station, supporting repeatable operation across shifts without manual repositioning. The multi-station structure allows filling, weighing, and transfer operations to occur simultaneously at different points on the turntable, enabling continuous output at stable speeds.

Suitable Containers and Materials

The line is designed for cylindrical containers with diameters of 20–85 mm and heights of 50–200 mm, covering a broad range of standard bottle and can formats used in food, pharmaceutical, daily chemical, and industrial applications. Turntable mold replacement is required when switching between different bottle diameters, allowing the line to be adapted to multiple container SKUs within a single facility. In terms of product materials, the line is suitable for liquids, pastes, granules, and other flowable materials, making it applicable across product categories that require accurate weight-based or volume-based filling into cylindrical containers.

Typical Industry Applications

The rotary granule weighing filling line is used across several industries where cylindrical container filling requires precision and continuous throughput:

• Food industry — canned goods, nuts, candies, dried fruits, and snack products where granule filling into round cans or bottles requires consistent weight control.
• Pharmaceutical applications — granules, oral liquids, and ointments where filling accuracy and contamination control are part of GMP compliance requirements.
• Daily chemical products — shampoo, laundry detergent, cosmetic emulsions, and toothpaste where paste or liquid filling into cylindrical bottles requires stable metering.
• Chemical products — small reagents, lubricants, coatings, and non-corrosive materials where precise fill volumes are required for product consistency and regulatory labeling.

Rotary Positioning and Multi-Station Filling

The rotary positioning system is the core operational feature of this filling line. Containers are loaded onto the turntable and indexed through each station in a controlled sequence driven by servo motor positioning. At each station, the container is held in a fixed position while the filling, weighing, or transfer operation is completed. Because multiple stations operate simultaneously — one container being filled while another is being weighed and a third is being transferred — the line achieves continuous output without the stop-start cycle of single-station filling equipment. Servo motor positioning ensures that container placement is repeatable across every cycle, reducing misalignment errors that can cause spillage, underfill, or overfill.

Confirmed Technical Parameters

The following specifications apply to the Rotary Granule Weighing Filling Production Line:

• Filling speed: 25–35 bottles/min (depending on material characteristics)
• Dimensions: 1800 × 1800 × 1425 mm
• Machine weight: 300 kg
• Power supply: Three-phase 380V, 50–60Hz, 2.5 kW
• Positioning: Precise servo motor positioning
• Container range: Diameter 20–85 mm, height 50–200 mm

How It Connects with a Complete Automated Line

The rotary granule weighing filling line is designed to integrate with upstream and downstream equipment as part of a complete automated packaging line. Compatible equipment includes:

• Upstream: Automatic Unscrambler Bottle Machine for oriented container supply, bottle sterilizers for hygiene preparation, and vacuum loaders for bulk material feeding.
• Filling and metering: Weighing machines, powder metering machines, and liquid metering machines depending on product type and fill specification.
• Inspection: Metal Detector JZ-M400FB for inline contamination detection after filling.
• Downstream: Labeling machines for container identification, case packers for secondary packaging, case sealers for carton closure, and palletizers for end-of-line stacking and dispatch.

When This Machine Is a Better Fit Than a Simple Filler

A rotary granule weighing filling production line is the appropriate choice when a factory requires more than a basic filling function. Specific situations where this line is a better fit include:

• Repeatable container positioning — when product spillage, misalignment, or inconsistent fill placement is a recurring issue with manual or semi-automatic equipment.
• Continuous filling output — when production targets require uninterrupted filling throughput that single-station or manual equipment cannot sustain across a full shift.
• Broader line integration — when the filling station needs to connect with upstream unscramblers, sterilizers, or downstream labeling, sealing, and palletizing equipment as part of a coordinated automated line.
• More stable output — when weight variation, fill inconsistency, or operator-dependent results are affecting product quality or downstream packaging performance.

Contact Keypack Intelligent

Container size, product material, filling weight, target speed, and downstream equipment configuration all affect which rotary filling line specification is appropriate for your application. Contact Keypack Intelligent to review your container size, product material, filling weight, target speed, and downstream equipment before planning a rotary granule weighing filling line. Our engineering team can help you evaluate turntable configuration, mold requirements, and line integration options for your production environment.