Detergent bottle blow mold

For Plastic Bottles and Large Hollow Containers

1. Mold Applications & Product Range

We specialize in the design and manufacture of extrusion blow molding molds for a wide range of plastic bottles and hollow containers, including:

Plastic bottles, milk bottles, medical bottles, engine oil bottles, lubricant and chemical bottles;
Large hollow plastic containers;
Automotive blow-molded parts, water tanks, bus seats;
Medium and large industrial plastic packaging for food, lubricants, chemicals, agriculture, and industrial liquid storage, such as HDPE containers and tanks in stackable and non-stackable designs with capacities of 10L, 20L, 30L, 60L, 120L, 220L, and 1000L.

From sample to finished mold, we provide a complete in-house solution, transforming your existing product sample into a ready-to-use blow mold.

Customers only need to provide a physical plastic bottle or container sample, 2D drawings, or 3D CAD files. Our engineering team will handle:

• 3D point measurement

• Wall thickness and shrinkage analysis

• Mold structure optimization for different blow molding processes

• Design adjustments for stacking strength, handling performance, durability, and drop resistance

These considerations significantly shorten development time and minimize production risks.

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2. Mold Structure & Technical Design

Our blow molds are custom-designed to match the customer’s continuous extrusion blow molding machines or accumulator head blow molding machines, based on the actual machine specifications, functions, clamping dimensions, and production requirements.

Small plastic bottles (100 ml – 10 L)
Such as milk bottles, medical bottles, lubricant bottles, and detergent bottles:

• Single-cavity or multi-cavity designs

• Reinforced bottom and handle parting lines

• Precise cap measurement and matching based on customer-provided closures

Medium hollow containers (10 L – 60 L)

• Independent cooling water channel systems for different mold zones

• Customized sub-mold opening directions according to machine requirements

• Fixed or independent deflashing systems

• Dedicated cooling designs for the top and bottom of containers

Large hollow containers (100 L – 1000 L)

• Enhanced cooling water system design

• Optimized parting line treatment

• Careful shrinkage rate control

Each mold is meticulously engineered to ensure stable production, uniform wall thickness, and long service life.

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3. Mold Material Options

We offer multiple mold material options to meet different production needs:

• P20 Steel Molds
  Good strength, excellent machinability, and cost-effective, suitable for most plastic containers.

• Stainless Steel Molds
  Excellent corrosion resistance, ideal for pharmaceutical and food containers as well as long-term production.

• Aluminum Alloy Molds
  Lightweight with faster cooling than steel molds, resulting in shorter cycle times—ideal for high-efficiency production.

Our engineers will recommend the most suitable mold material based on your product, plastic material, and production volume.

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4. Mold Manufacturing Process

All molds are manufactured through the following processes:

From raw material preparation after mold design, CNC rough machining, drilling cooling water holes or CNC-milled cooling channels, CNC precision machining, plugging cooling channels, seal installation, fine polishing of internal mold surfaces, surface treatment, sandblasting, and cooling water pressure testing.

Strict dimensional control is applied at every stage, ensuring that every delivered mold achieves high precision, durability, and consistency.

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5. Quality Control & Mold Trial on Blow Molding Machines

Each blow mold will be tested complete process before shipment.

After trial production on a blow molding machine, we verify:

• Dimensions, weight, and appearance against drawings

• Handle strength and stacking performance

• Water-filled drop tests

If any issues are found during testing, mold modifications are carried out until all requirements are fully met before delivery.

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6. Delivery & After-Sales Support

Estimated mold delivery time: 45–60 days, depending on mold complexity.

We provide Plywood case export-standard packaging, technical support for mold installation and commissioning, as well as ongoing guidance for mold maintenance and long-term operation.

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One-Stop Blow Mold Solutions

We offer complete one-stop blow mold solutions, covering:
Product Sample → Mold Design → Manufacturing → Trial → Delivery

Helping customers achieve shorter development cycles, more stable production, and lower total project costs.

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Request a Mold Solution

Please contact us via WhatsApp to inquire about mold design, pricing, and delivery time.

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