PP IML Yogurt Container Injection Moulding

In the competitive dairy packaging industry, in-mold labeling (IML) injection molding has become the standard for producing high-quality, shelf-ready yogurt containers. Our company specializes in advanced PP IML systems that deliver superior decoration, barrier protection, and production efficiency. Within our comprehensive portfolio, you will find solutions like Polypropylene IML Plastic Yogurt Pot Injection Molding designed for standard round or square yogurt pots, and the versatile Plastic PP IML Dairy Cup Injection Molding that extends to various dairy cup formats. These machines incorporate high-speed robotics, precise label placement, and energy-efficient all-electric or hybrid drives, ensuring consistent output for demanding production environments. The integration of in-mold labeling eliminates post-decoration processes, reduces contamination risks, and enhances brand differentiation on retail shelves.

PP IML Yogurt Container Injection Moulding represents the pinnacle of precision molding for thin-wall yogurt packaging. This system is engineered to handle polypropylene (PP) resins with high melt flow rates, enabling the production of lightweight yet rigid containers with wall thickness as low as 0.35 mm. The integrated IML automation places pre-printed labels inside the mold cavity before injection, fusing the label into the container wall during the molding cycle. The result is a fully decorated container that is moisture-resistant, scratch-proof, and recyclable. Additional standard features include automatic label magazine loading, in-mold vision inspection for label placement accuracy, and active mold protection to prevent damage from misplaced labels.

Key technical specifications are outlined below:

• Clamping force range: 1,800 kN to 6,500 kN, configured according to cavitation and container dimensions
• Injection unit: High-speed reciprocating screw with L/D ratio of 23:1, optimized for PP, capable of injection speeds up to 350 mm/s
• Shot weight capacity: 80 g to 450 g (PS equivalent), adjustable to match multi-cavity molds up to 12+12 stacks
• Label insertion system: Side-entry or top-entry robot with servo-driven axes, placement accuracy ±0.2 mm, cycle time as low as 2.8 seconds
• Mold technology: Hot runner systems with valve gate control, conformal cooling for fast heat dissipation, diamond-like carbon (DLC) coating for extended tool life
• Energy consumption: Below 0.38 kWh/kg on all-electric models, meeting EUROMAP 60.1 efficiency standards
• Control system: 15-inch touchscreen HMI with Industry 4.0 connectivity, remote diagnostics, and production monitoring via OPC UA
• Container compatibility: Round, square, rectangular, and oval shapes from 100 ml to 1,000 ml capacity
• Quick changeover system: Magnetic mold clamping and automatic robot gripper adjustment reduce downtime

A representative machine configuration for a 4-cavity yogurt cup mold (200 ml, 3.5 g label) is presented in the following table:

The PP IML Yogurt Container Injection Moulding is fully compatible with both virgin and food-grade recycled PP, supporting sustainability initiatives without compromising container integrity. Changeover between different container shapes can be completed in under 45 minutes with quick mold clamping and pre-loaded label magazines. Advanced process control ensures consistent label positioning and container weight variation within ±0.5%, critical for downstream filling and capping operations. With robust construction and continuous production capability, this system offers an ideal solution for dairy processors aiming to elevate brand presence while reducing total cost of ownership.