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This mold is specifically developed for degradable plastic milk tea cups, compatible with mainstream degradable materials such as PLA, PBAT, and PLA/PBAT blends. Addressing the characteristics of degradable materials (weak fluidity and special heat resistance), it features an optimized cavity structure and temperature control system. This solves common issues of traditional molds when producing degradable cups—such as mold sticking, brittle finished products, and uneven wall thickness—helping enterprises achieve efficient mass production of eco-friendly milk tea packaging.
• The cavity surface adopts nano-level polishing process (roughness Ra ≤ 0.02μm), reducing mold sticking risk of degradable materials (e.g., PLA) after cooling, with the rejection rate lowered to less than 1.5%;
• Equipped with a multi-stage temperature control system with a temperature accuracy of ±1℃, it prevents degradable materials from decomposing due to local high temperatures during injection molding, ensuring the toughness and load-bearing capacity of finished cups (capable of holding 300g of liquid upside down for 12 hours without leakage).
• Supports multi-cavity customization (1-cavity/4-cavity/8-cavity/16-cavity options). The 16-cavity mold has a single cycle time of only 18-22 seconds, with a daily output of 35,000-40,000 units (based on 20 hours of production);
• Adopts angle pin core-pulling structure to automatically form cup mouth curling and anti-slip patterns, eliminating the need for secondary processing and shortening the production process by 30%.
• The cavity is manufactured via CNC precision machining (dimensional error ≤ 0.01mm), ensuring uniform wall thickness of milk tea cups (deviation ≤ 0.1mm) and preventing deformation when used for cold or hot drinks;
• Wide compatibility with cup types: capable of producing cups with mainstream capacities (300ml-700ml) and calibers (65mm-90mm), supporting customization of cup body logos and textures (minimum engraving precision of 0.1mm).
• The mold body is made of S136 corrosion-resistant stainless steel with a hardness of HRC 52-55, offering excellent wear resistance and a service life of over 800,000 cycles under normal use;
• The guide pillars and bushings adopt a self-lubricating design, reducing friction loss, extending the maintenance cycle to once every 6 months, and lowering the enterprise's operation and maintenance costs.
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Item |
Specification Parameters |
|
Applicable Materials |
PLA, PBAT, PLA/PBAT Blend, PHA |
|
Number of Cavities |
1/4/8/16 cavities (customizable) |
|
Mold Size (L×W×H) |
450×380×260mm (for 16-cavity mold) |
|
Mold Weight |
85kg (for 16-cavity mold) |
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Suitable Injection Molding Machine Tonnage |
50-100 tons (1-4 cavities), 120-200 tons (8-16 cavities) |
|
Production Cycle |
18-22 seconds/mold (16-cavity) |
|
Finished Cup Specification |
Capacity: 300ml-700ml, Wall Thickness: 0.3-0.5mm |
|
Mold Precision Grade |
IT5 Grade |
|
Cooling Method |
Spiral Water Channel (uniform cooling, cooling efficiency increased by 25%) |
1. Target Customers: Packaging production bases of chain milk tea brands, degradable packaging manufacturers, small and medium-sized injection molding enterprises (undertaking milk tea cup processing orders);
2. Application Scenarios: Production of packaging for cold-brew milk tea and hot drinks (≤85℃), suitable for disposable degradable milk tea cups, juice cups, coffee cups, etc.
1. Installation & Debugging: Requires debugging of injection molding machine parameters (injection pressure: 80-120MPa, injection speed: 30-50mm/s). The manufacturer provides one-on-one on-site installation guidance (including equipment parameter matching plan);
2. Daily Maintenance: Clean the cavity before each production (special neutral cleaning agent is recommended), check the water channel smoothness weekly, and replace the guide pillar grease every 6 months (special grease is provided by the manufacturer);
3. Material Preprocessing: Degradable materials need to be pre-dried (PLA drying temperature: 40-60℃, drying time: 4-6 hours) to avoid bubbles in finished products caused by excessive material moisture.
1. Warranty Service: 1-year free warranty (including mold part replacement) and lifelong maintenance technical support;
2. Response Time: Technical support response within 24 hours, on-site maintenance within 48 hours (covering service points in 30 provinces across China);
3. Value-Added Services: Free cavity renovation when the mold reaches 500,000 cycles of use, and support for old mold modification (e.g., multi-cavity upgrade, cup type adjustment).
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