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Equipment selection for plastic cup, bowl, lid, and box? Learn the strengths of hydraulic and servo presses in 3 minutes.
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In the production of plastic cups, bowls, lids, and boxes, hydraulic presses and fully servo-controlled cup making machines are two commonly used pieces of equipment. However, many people confuse the two when making a selection. In reality, each excels in different areas, and choosing the right one can significantly improve production efficiency and product quality. Today, we will teach you how to accurately distinguish and choose based on the type and material of different plastic products.
01. Fully Servo-Controlled Cup Making Machine: The "High-Efficiency Expert" for Standardized Cups and Lids
- Core Advantages
Servo motor precise temperature control (±1℃), stable pressure, excels at mass production of products with "regular shapes and high precision requirements".
- Suitable Product Types
Plastic Cups: For standardized cup types like奶茶杯 and 咖啡杯, the fully servo-controlled cup making machine is the first choice. It ensures a flat cup mouth and uniform wall thickness, with an error controllable within ±0.1mm. It can produce 300-800 units per minute, making it ideal for mass production. It can easily handle both PET cold drink cups and PP hot drink cups. However, for small-capacity, simple tasting cups, if the precision requirements are not high, while it can still be produced, from a cost perspective, using other equipment may be more cost-effective.
Plastic Lids: Cup lids and bowl lids with sealing ribs (rib precision needs to be ≤0.05mm to prevent leakage). PP lids, due to their high temperature resistance and elasticity, require precise pressure from a servo machine to fix their shape. Plastic lids: Cup lids and bowl lids with sealing ribs have extremely high precision requirements for the sealing ribs (usually ≤0.05mm). The precise pressure control of a fully servo-controlled cup making machine ensures that the sealing ribs are perfectly formed, guaranteeing a good seal. PP lids, due to their elasticity and high-temperature resistance, require precise pressure to fix their shape, making a fully servo-controlled cup making machine the perfect choice.
- Material Compatibility
Suitable for PET (high hardness, easy to mold) and PP (high melting point, servo temperature control is more stable), etc. The precise temperature control of the fully servo-controlled cup making machine can prevent deformation due to uneven temperature.
02. Hydraulic Press: The "Problem Solver" for Complex Structured Products
- Core Advantages
High pressure (50-200 tons), strong forming force, specializes in "thick-walled, with buckles, deep cavity" and other difficult complex structures.
- Suitable Scenarios
Buckle Boxes: Sealed boxes and snack boxes with buckles are the hydraulic press's "forte." The tolerance between the protrusion and the recess of the buckle needs to be ≤0.03mm, otherwise, leakage or buckle breakage may occur. The high pressure of the hydraulic press can precisely control the buckle forming, ensuring tight closure and repeated opening and closing without loosening. For thick-walled storage boxes, the hydraulic press can also give them sufficient rigidity to meet stacking requirements.
Thick-Walled Containers: Thick-walled deep soup bowls (wall thickness 0.5-1mm), large-capacity mixing bowls, etc., require sufficient pressure to allow the material to fully adhere to the mold, ensuring that the bowl body is thick and uniform. Using a hydraulic press can avoid problems such as uneven wall thickness and lack of material at the bottom. HDPE flexible bowls, after being shaped under high pressure from a hydraulic press, can ensure that they do not deform during use and stacking.
Special Shapes: Lunch boxes with deep compartments, high-sided baking trays (height >2cm) require high pressure to press the material into the dead corners of the mold to avoid lack of material at the corners. The hydraulic press ensures that the edges of the tray are completely formed, the arc is smooth, and it has sufficient strength.
- Material Preference
Suitable for HDPE (high toughness, requires high pressure to fix the shape), PC (high melting point, high pressure + high temperature ensures molding), modified PP (added fiberglass reinforcement, requires strong pressure to prevent cracking). The high pressure and precise temperature control of the hydraulic press can better meet the molding requirements and ensure stable product quality.
03. 3-Second Matching Formula
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Check the type: Standardized cups/lids, large batch → Fully servo-controlled cup making machine;
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Check the complexity: With buckles, thick walls, deep cavities → Hydraulic press.
Based on the product type, material, and production needs, choosing between a hydraulic press and a fully servo-controlled cup making machine will improve product quality, increase production efficiency, and reduce production costs. What kind of plastic products are you producing? Do you have any questions about equipment selection? Welcome to consult and communicate.
News
2023-01-04
2023-01-04
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