Introduction

In the competitive food industry, maintaining product consistency and quality is paramount. For candy manufacturers, even minor inconsistencies in flavor or color can impact the final product. One of our clients in Indonesia, a leading food company, faced a significant challenge in their candy rework process: effectively removing unwanted flavors and colors from dissolved candy syrup. Here's how we collaborated to deliver a customized pre-coated vacuum drum filtration solution that exceeded their expectations.

1. What Was the Problem?

The client's production process involved dissolving candy to create a sugar syrup with a remarkably high solid content of 63%. This viscous material presented unique challenges:

• Persistent flavor and color contamination affecting product quality
• High viscosity and solid content complicating conventional filtration
• Strict hygiene requirements for food-grade production
• Processing efficiency concerns with existing filtration methods

Traditional filtration systems struggled to handle the syrup's thickness while effectively removing unwanted elements, creating bottlenecks in their candy rework processing.

2. How Did We Solve It?

Our solution centered on a custom-engineered 2m² Pre-coated Vacuum Drum Filter specifically designed for sugar syrup applications. Here's how the vacuum drum filtration process transforms syrup treatment:
The Vacuum Drum Filtration Advantage for Syrup:

• Continuous Operation: The rotating drum design enables uninterrupted processing of large syrup volumes, significantly improving production efficiency
• Pre-coating Technology: Using specially selected diatomaceous earth as a filter aid creates a porous layer that effectively traps color pigments and flavor compounds while allowing clean syrup to pass through
• Vacuum-enhanced Separation: The applied vacuum creates superior driving force for filtration, efficiently pulling syrup through the pre-coat layer while impurities remain on the drum surface
• Self-cleaning Capability: The drum's continuous rotation with knife discharge mechanism maintains consistent filtration performance without manual intervention

Technical Excellence:

• Food-Grade Construction: All product-contact surfaces use SS316 stainless steel, with the frame in durable SS304. The air-liquid separator features mirror-polished SS316 for optimal cleanliness
• Optimized Filtration Media: We recommended specific diatomaceous earth parameters that create the ideal pore structure for capturing color and flavor molecules
• Compliant Design: Engineered with JIS10K flange connections and 380V, 3-phase, 50Hz power supply for seamless integration
• Comprehensive Support: Provided detailed dimensional layouts, wearable parts list, and streamlined logistics with FOB Shanghai terms

3. What Was the Client's Feedback?

The implementation of our vacuum drum filter delivered transformative results:
Performance Excellence:

• Superior Clarification: The system achieved remarkable removal of unwanted flavors and colors, enabling direct reuse of purified syrup in premium candy production
• Consistent Quality: Maintained excellent filtration performance despite the 63% solid content, delivering predictable, reliable results batch after batch
• Reduced Operating Costs: Continuous automation decreased labor requirements and minimized product loss

Operational Advantages:

• Easy Maintenance: The accessible design and clear wearable parts list simplified upkeep
• Smooth Implementation: FOB Shanghai terms ensured hassle-free delivery and installation
• Enhanced Productivity: The continuous processing capability eliminated previous bottlenecks

The client reported that the solution fundamentally improved their candy rework process, calling it "a game-changer for our quality control and production efficiency."

Conclusion

The specialized pre-coated vacuum drum filtration technology demonstrates how targeted engineering can overcome even the most challenging food processing applications. By understanding the unique properties of sugar syrup and applying appropriate vacuum drum filtration principles, we delivered a solution that not only solved immediate problems but also created long-term operational advantages.