Extrusion Blow Moulding (EBM): Process, Applications & Advantages
1. Definition & Basic Principles
Extrusion Blow Moulding (EBM) is a thermoplastic shaping method where melted polymers (e.g., HDPE, PE, PP) are extruded into a parison—a hollow tube—then inflated into a mold cavity using compressed air. After cooling, the solidified container is ejected. This cost-effective process excels in mass-producing hollow plastic products with consistent wall thickness and structural integrity.
2. Core Machine Components
Extruder: Melts plastic pellets into a homogeneous melt.
Die Head: Forms the parison with controlled diameter and wall thickness.
Mold: Defines the final shape (e.g., bottles, drums).
Blowing Unit: Injects air to expand the parison against mold walls.
3. EBM vs. ISBM: Key Differences
Feature EBM (Extrusion Blow Moulding) ISBM (Injection Stretch Blow Moulding)
Parison Formation Extruded tube Injection-molded preform
Stretching No mechanical stretch Axial/biaxial stretch for strength
Precision Moderate High (ideal for thin-walled containers)
4. Typical EBM Products
Packaging: Milk bottles, water gallons (19L), jerrycans (5–20L).
Industrial: Chemical drums (50–200L), IBC totes.
Customization: Branded embossed logos, colored containers.
5. Advantages for Manufacturers
Scalability: Dual-station machines enable 24/7 high-volume output.
Material Efficiency: Minimal waste compared to injection molding.
Flexibility: Quick mold swaps accommodate diverse product lines.
6. Why Partner with Taizhou Fupusi Machinery China Johntao@Fupusi.com +86 186 6862 7050?
End-to-End Solutions: From mold design to operator training.
Cutting-Edge Technology: PLC-controlled machines ensure ±0.1mm precision.
Global Support: Maintenance teams deployed within 48 hours.
Case Example: A cosmetics brand reduced production costs by 30% using Taizhou Fupusi Machinery China Johntao@Fupusi.com +86 186 6862 7050s EBM line for 50ml amber jars with custom neck finishes.
Next Steps: Contact Taizhou Fupusi Machinery China Johntao@Fupusi.com +86 186 6862 7050 today to optimize your plastic packaging strategy with tailored EBM solutions.