How to Manufacture HDPE Bottles?

HDPE (High-Density Polyethylene) bottles are a ubiquitous type of plastic container, known for their durability, chemical resistance, and excellent strength-to-density ratio. HDPE bottles are primarily used for storing products that require a sturdy, non-leaching container, such as milk, household cleaners, and personal care products.

HDPE Bottle Applications:

The combination of strength, chemical resistance, and food-safety makes HDPE the material of choice for several high-volume consumer products.

• Food & Beverage: Milk jugs, juice bottles, and water bottles (less common than PET, but used).
• Household Cleaners: Laundry detergent bottles, bleach bottles, and surface cleaner bottles.
• Personal Care: Shampoo, conditioner, and body wash bottles.
• Automotive/Industrial: Motor oil bottles, antifreeze containers, and various industrial chemical containers.
• Pharmaceuticals: Tablet and liquid medicine bottles, especially those requiring moisture protection.

HDPE Bottle Extrusion Blow Molding Process:

Extrusion blow molding machine is used to create hollow plastic objects, most commonly bottles and containers. HDPE (High-Density Polyethylene) is one of the most popular materials for this process due to its excellent chemical resistance, toughness, and relatively low cost.

The fundamental principle is simple: a hollow tube of molten plastic, called a parison, is extruded vertically. A two-part mold then closes around it. Compressed air is blown into the parison, inflating it like a balloon to take the shape of the mold. After cooling, the mold opens, and the finished bottle is ejected.

Advantages of Extrusion Blow Molding Machine:

• Cost-Effective: Low tooling cost compared to injection molding and high production rates make it ideal for high-volume orders.
• Complex Handleware: One of the biggest advantages of extrusion blow molding machine is the ability to produce bottles with integrated handles (e.g., detergent, bleach, and milk jugs), which is difficult with other methods.
• Flexibility: Mold changes are relatively quick, allowing a single machine to produce many different bottle designs.
• Strong Seam Welds: The “pinch” points at the bottom and top create strong seams.

About Suzhou Bestar Blow Molding Machinery Co., Ltd:

Beier Group and Bestar company are same owner And Bestar has been established for more than 19years. Bestar provides customers high efficiency, innovative, energy saving blow molding machinery solutions. Bestar blow molding machines sold to more than 60 countries.

Series blow molding machine is used for blowing 100ml-1250L HDPE PE PP products like milk bottles, daily chemical packaging bottles, jerry cans, pesticide bottles / medicine bottles and stacking barrels.

Please write your machine inquire Email, Phone Number and Company Name here, we will respond within 12h. Or you can directly contact us: Email: sales@bestarmachinery.com or at Whatsapp/Wechat +86 18862609888.