Professional Plastic Pipe Fitting Mould Manufacturer With 20 Years Of Experience - Spark Mould

Precision Mold for Food Packaging: 0.5mm Chocolate Stick Cup 1

Precision Mold for Food Packaging: 0.5mm Chocolate Stick Cup 2

Precision Mold for Food Packaging: 0.5mm Chocolate Stick Cup 3

Precision Mold for Food Packaging: 0.5mm Chocolate Stick Cup 4

Precision Mold for Food Packaging: 0.5mm Chocolate Stick Cup 5

Precision Mold for Food Packaging: 0.5mm Chocolate Stick Cup

In the rapidly evolving landscape of the global food packaging industry, the demand for automation-ready design and high-speed production has never been higher. For brand owners and manufacturers, the challenge lies in reducing material costs through light-weighting while maintaining the structural integrity and functional precision required for high-speed automated filling lines. At the heart of this balance is the precision mold—the foundation upon which manufacturing efficiency is built.

Recently, we had the opportunity to demonstrate our engineering capabilities through a sophisticated project for a prominent Czech client. The project involved a two-component chocolate stick cup. This was not merely a task of creating a container; it was about engineering a high-performance system where a 130ml outer cup and a specialized dipping tray must interact with flawless consistency.

Inquiry

Write a Review

This project serves as a perfect case study of our expertise in precision mold making. It highlights how we navigate the complex intersection of ultra-thin wall geometries (0.5mm) and the rigorous mechanical requirements of automated assembly. By integrating advanced machining technologies with deep material science insights, we successfully addressed the client’s need for a solution that is both resource-efficient and optimized for the high-velocity demands of the European food market. Let's dive in.

Project Overview: The 0.5mm Challenge

The project consists of two separate components designed to fit perfectly together:

1. 130ml Outer Cup: A 4-cavity mold.

2. Inner Dipping Tray: An 8-cavity mold.

Both components are made from Food-Grade PP, featuring an ultra-thin wall thickness of only 0.5mm. Such a thin-walled design requires not only high-speed injection but also extreme mold stability and precision.

Key Mold Specifications:

Component	Cavity	Mold Size	Runner System	Cycle Time
130ml Cup	4 Cavity	410 x 600 x 585 mm	YUDO Valve Gate	10 - 12s
Dipping Tray	8 Cavity	460 x 920 x 549 mm	YUDO Valve Gate	10 - 12s

Meeting Automation Requirements: The "Perfect Fit"

Our Czech client emphasized two critical functional requirements for their automated assembly line:

Secure Locking: The dipping tray must snap into the cup firmly enough to stay in place during filling.
Natural De-stacking: The cups must drop naturally when stacked, preventing any jams in the automated machine.

To achieve these, we controlled the tolerances within ±0.01mm, ensuring that the interference fit between the two components remains consistent across millions of production cycles.

Precision Mold for Food Packaging: 0.5mm Chocolate Stick Cup 7

Technical Breakthroughs: How We Solved the Challenges

Precision Mold for Food Packaging: 0.5mm Chocolate Stick Cup 8

1.Ultra-Precision Machining & Quality Control

Thin-wall molds are unforgiving. A deviation of 0.02mm can lead to wall thickness unevenness or flash. We utilized high-precision CNC equipment (tolerance ±0.01mm) throughout the process. Every core and cavity was verified using 3D Coordinate Measuring Machines (CMM) to ensure the theoretical design matched the physical steel perfectly.

Precision Mold for Food Packaging: 0.5mm Chocolate Stick Cup 9

2. Sophisticated Venting Strategy

In thin-walled injection molding, air must be evacuated almost instantaneously to avoid "diesel burns" or short shots. We engineered precision venting slots with a depth of less than 0.02mm. These are strategically positioned to allow maximum airflow without causing any flash on the food-grade PP parts.

3. Thermal Management & Material Choice

To maintain a fast 10-12s cycle time, we used high-performance mold steel with excellent thermal conductivity. The cavities were polished to a mirror finish. This doesn't just provide a premium look; it significantly reduces flow resistance, allowing the melt to fill the 0.5mm gap smoothly.

4. High-Speed Production Testing

The molds were tested on a TOYO 180T High-Speed Injection Machine. The use of a YUDO Needle Valve Hot Runner system ensured clean gates and prevented stringing, which is vital for the aesthetics of food packaging.

Precision Mold for Food Packaging: 0.5mm Chocolate Stick Cup 12

Live Demo: Injection molding cycle process.

Watch the precision in motion! We are testing these molds on the TOYO 180T high-speed injection machine.

When dealing with 0.5mm thin-wall components, speed and stability are everything. This video demonstrates:

Fast Cycle Time: Achieving a consistent 10-12 second cycle.
Perfect Filling: The synergy between the YUDO valve gate system and the high-speed press ensures zero defects even at peak speeds.
Engineered for Volume: Every movement is optimized for high-frequency, automated mass production.

Conclusion: Your Partner for Precision Packaging Molds

This Czech project highlights our ability to combine precision mold engineering with the demands of modern food packaging. Whether it is a plastic cup injection mold or a complex multi-component assembly, we provide solutions optimized for automation and high-speed ROI.

Looking for a reliable supplier for your next thin-wall project? Contact our engineering team today for a professional DFM analysis and quote.

Get in touch with us

just leave your email or phone number in the contact form so we can send you a free quote for our wide range of designs