Struggling with Sticky Products? Here's Why Screw Multihead Weighers Are the Best Solution

In the food processing industry, not all products are easy to handle.

If you’ve ever tried weighing marinated meat, wet pet food, pickles, or prepared meals, you already know the problem:

they don’t flow, they stick, they clump—and they simply don’t behave well in traditional weighing systems.

After years of working with food manufacturers across different sectors, we’ve seen one pattern again and again:

Standard vibratory multihead weighers often fail when dealing with sticky, soft, or irregular products.

So what’s the alternative?

The answer, in many cases, is the screw multihead weigher.

Why Sticky Products Are So Difficult to Weigh

Before we talk about solutions, it’s important to understand the root of the problem.

Most conventional multihead weighers rely on vibration feeding to move product from the top cone into weighing buckets. This works perfectly for free-flowing products like snacks, nuts, or frozen foods.

But for sticky or low-mobility products, vibration creates several issues:

Product sticking to feeder pans

Uneven or interrupted feeding

Material bridging and clogging

Inconsistent weighing accuracy

Frequent manual intervention

In short, the system loses stability—and so does your production efficiency.

What Is a Screw Multihead Weigher?

A screw multihead weigher is designed specifically to handle these “difficult” products.

Instead of relying on vibration, it uses independent screw (auger) feeding systems to actively control how material is delivered into each weighing hopper.

Each head is equipped with a screw feeder that:

Rotates at controlled speed

Delivers consistent product flow

Prevents sudden drops or blockages

This transforms the feeding process from passive (vibration-based) to active and controllable.

Key Advantages for Food Processors

From our experience working with processors in meat, ready meals, and pet food industries, the benefits are very clear:

1. Stable Feeding for Difficult Materials

Sticky, oily, or soft products no longer rely on gravity or vibration alone.

The screw ensures continuous and predictable feeding.

2. Improved Weighing Accuracy

Because product flow is controlled, weight fluctuations are reduced—especially important for high-value or regulated products.

3. Reduced Downtime

No more frequent stoppages caused by clogging or bridging.

Less manual cleaning during production.

4. Better Product Integrity

Gentle screw feeding minimizes damage to soft or fragile items.

5. Flexible for Mixed or Multi-Ingredient Applications

Screw systems can be adapted for combination weighing of multiple sticky components.

Typical Applications

Screw multihead weighers are widely used in:

Marinated meat (chicken, pork, beef strips)

Prepared and ready-to-eat meals

Wet or semi-moist pet food

Pickled or fermented vegetables

Shredded or sliced vegetables

Products with sauce, oil, or high moisture content

In simple terms:

If your product doesn’t flow freely, a screw weigher is likely the right choice.

Screw vs. Vibratory: Which One Should You Choose?

There’s no “one-size-fits-all” answer.

For dry, free-flowing products → vibratory multihead weighers are faster and more cost-effective

For sticky, soft, or irregular products → screw multihead weighers deliver better stability and accuracy

Choosing the wrong system often leads to:

Lower efficiency

Higher product giveaway

Increased labor costs

What to Consider Before Choosing a Screw Multihead Weigher

Based on real project experience, here are a few key factors:

Product characteristics (moisture, viscosity, shape)

Required speed and target output

Cleaning and hygiene requirements

Integration with packaging lines

Level of automation needed

A proper evaluation upfront can save significant costs later.

The Toupack Solution: A Five-Step Engineering Approach

1. Dimple Plate Surface (Textured Finish)

We replaced all contact parts with 304/316 Stainless Steel Dimple Plates. The "golf-ball" texture reduces the surface area in contact with the product, significantly lowering the suction effect caused by moisture and oils.

2. Teflon Coating (Optional Enhancement)

For ultra-sticky materials, we applied a food-grade Teflon (PTFE) coating. This provides a non-stick surface that allows even the most stubborn marinated cabbage to slide smoothly.

3. Scraping Gate Buckets

Standard buckets rely on gravity to discharge. We installed Scraper Gates on the hoppers. These mechanical scrapers physically wipe the inner wall of the bucket during every discharge cycle, ensuring that 100% of the product leaves the bucket.

4. High-Efficiency Specialized Collection Chutes (Hoppers)

To dramatically increase discharge speed and ensure a smooth product flow, Toupack redesigned the collection chute architecture:

70-Degree Steep Chute Angle: We engineered the collection chutes with a steep 70-degree angle. This significantly reduces surface friction compared to standard angles, allowing even sticky marinated meat and wet kimchi to slide down effortlessly under gravity.

Zoned Collection Chute Structure: The chutes utilize a specialized zoned, compartmentalized structure. This design prevents material clumping and ensures that products from different weigh hoppers merge into a streamlined, centralized flow. This architectural optimization directly leads to faster discharge cycles and higher overall machine speed.

5. Dedicated Hopper Cleaning Wall (Manual Wash Station)

To streamline the sanitation process, we provide a Hopper Cleaning Wall. This is a specialized physical station where operators can securely hang hoppers for manual pressure washing.

Thorough Cleaning: Allows 360-degree access to remove all residues.

Cross-Contamination Prevention: Keeps hoppers off the floor and away from unsanitized surfaces during the washdown.

Compliance: Ensures the facility meets global hygiene standards (FDA/CE) with an organized, ergonomic cleaning workflow.

Final Thoughts

Sticky products don’t have to slow down your production.

With the right equipment design, even the most challenging materials can be handled with precision and consistency.

Screw multihead weighers are not just an alternative—

they are a purpose-built solution for products that traditional systems can’t handle effectively.