When choosing a packaging machine for the packaging of sugar granules, the main factors to consider include the measurement accuracy (as sugar is of high value and needs to comply with national standards), packaging speed, moisture-proof properties, and the fluidity of the material (sugar granules have good fluidity, but are prone to absorbing moisture and forming lumps).
Based on the industry trends and equipment characteristics for the period 2025-2026, the following are professional suggestions and recommended models for the packaging of sugar granules:
1.Recommended Preferred Model
A. Vertical Particle Automatic Packaging Machine (VFFS - Vertical Form Fill Seal)
Application Scenarios: Small to medium-sized packaging (such as 50g, 250g, 500g, 1kg, 5kg, etc.), most common are small or medium-sized bags for sugar.
Core Advantages:
Measurement Method: Usually equipped with a combined scale (multi-head scale) or volume cup.
Combined Scale: Extremely high precision (error can be controlled within ±0.2% to 0.5%), fast speed, suitable for high-value or weight requirements for sugar packaging.
Volume Cup: Extremely fast speed, low cost, suitable for large production scenarios with slightly broader precision requirements, but requires regular calibration to prevent changes in sugar density affecting weight.
Efficiency: Up to 30-80 bags per minute (depending on bag type and weight).
Flexibility: Changing the packaging material roll film can adjust the size and pattern of the packaging bag.
B. Bag-Filling Fully Automatic Packaging Machine (Premade Pouch Machine)
Application Scenarios: Mid-to-high-end market, using pre-made bags (such as self-standing bags, zipper bags, irregular-shaped bags), pursuing the appearance grade of packaging.
Core Strengths:
Good appearance: Use beautifully printed prefabricated bags to enhance the product's value.
Full functionality: High integration, allowing for easy addition of functions such as nitrogen filling for preservation (to prevent sugar from absorbing moisture and forming lumps), date printing, and foreign object detection.
Stability: The new 2026 model equipment mostly adopts servo control, with high bag opening success rate and optimized anti-sticky material design (focusing on the possible slight stickiness of sugar).
Accuracy: Usually paired with high-precision linear scales or combination scales, with extremely low error.
C. Large-dose automatic weighing packaging machine (25kg/50kg large bags)
Application scenarios: Large packaging for industrial sugar and catering wholesale sugar.
Core advantages: Using gravity flow type or screw propulsion (if sugar has slight lumps), it has two processes of coarse weighing and fine weighing to ensure accurate bag weight, and comes with automatic edge folding, sewing, or heat sealing functions.
2. Key selection criteria (based on the characteristics of sugar)
When consulting with the manufacturer, please focus on confirming the following configurations:
Contact material: It must be 304 or 316L stainless steel. Although sugar is a food product, if the production environment is humid, ordinary steel is prone to rust and contaminate the product.
Dust-proof and sealing design:
During the cutting process of sugar, fine sugar powder will be produced. The equipment needs to have a good dust-proof cover and dust collection interface to prevent sugar powder from entering the electrical components and causing malfunctions.
The discharge port needs to have a drip-proof and leakage-proof device to avoid sugar grains getting stuck at the sealing point and causing air leakage (sugar is prone to deteriorate when it absorbs moisture).
Moisture-proof function:
It is strongly recommended to select an optional nitrogen filling device. Before sealing, fill nitrogen to displace the oxygen, which can effectively extend the shelf life of sugar and prevent it from caking.
Control system:
Choose mainstream brands such as Siemens, Mitsubishi, or Omron for PLC (Programmable Logic Controller) and touch screens. The operation interface should support the storage of multiple sets of formulas (for convenient switching between different weights).
Clear coding:
The packaging of sugar is usually transparent or light-colored film. It is necessary to be equipped with a high-performance ribbon coding machine or laser coding machine to ensure that the production date is clear and does not fall off.
3. Avoiding Pitfalls Guide
Don't just focus on the price: Low-priced equipment often sacrifices sensor accuracy and mechanical transmission components, resulting in large weight errors after long-term operation (each bag may contain a few more grams of sugar, and the annual loss far exceeds the price difference of the machine).
Be sure to test it: Take your actual sugar samples (including different batches to prevent uneven particle sizes) to the manufacturer's site for testing. Observe the stability after continuous operation for one hour, the sealing strength, and whether there is any jamming.
Pay attention to after-sales: Ask about the supply of spare parts and the response time for maintenance. Packaging machines are continuous production equipment, and the loss from downtime is huge.
4.Summary of recommendations:
If you are dealing with regular small bag packaging (<5kg), the preferred option is a vertical granule packaging machine with a combined scale, as it offers high性价比 and good accuracy. If you are targeting the high-end supermarket market, it is recommended to choose a bag-in-box packaging machine and add the nitrogen filling function. For large-scale wholesale operations， a 25kg automatic quantitative weighing scale should be selected.
