Air Duct Blow Molding Machine for Auto Parts | Chen Way
Accumulator die head blow molding machine for long, curved automotive parts such as air induction ducts, with wall-thickness control along complex bends.
Auto Parts Accumulator Type of Blow Molding Machine
Accumulator die-head blow molding machines are ideal for producing long, curved, and complex hollow components and are widely used in automotive parts, such as air induction ducts. These products combine lightweight design with excellent airtightness and high structural flexibility, serving critical functions in engine intake, cooling systems, HVAC, and cabin ventilation.
Through a one-piece molding process, these components significantly reduce overall vehicle weight while enhancing design flexibility and structural stability. Furthermore, the finished products exhibit outstanding heat resistance, vibration damping, anti-aging properties, and superior impact resistance. Our machines ensure consistent wall thickness throughout complex curvatures, meeting the stringent safety and performance standards of the global automotive industry.
Molding Principle
The machine employs an accumulator extrusion system that temporarily stores molten plastic in an accumulator cylinder (die head). Once the material reaches a preset volume, a plunger mechanism rapidly extrudes it in a single stroke to form a complete, robust parison, which is then immediately blow-molded. This method ensures a more uniform temperature distribution across the parison and prevents molding defects caused by uneven temperature. It is particularly suitable for manufacturing large-scale or heavy-duty hollow products.
Applications
Accumulator head blow molding machines are widely utilized across industrial products, transport packaging, household and commercial goods, and the toy industry. They are particularly ideal for the storage and transportation of hazardous liquids, such as chemicals, detergents, and various industrial fluids, ensuring maximum safety and stability during handling. Whether for industrial, commercial, or everyday needs, this technology delivers reliable, consistent molding quality, demonstrating high flexibility and practical value.
Specification
Die Head: Accumulator / Vertical Ram Type
β Built-in Accumulator Chamber: The die head features an integrated accumulator chamber that stores a large volume of molten plastic in a short period and extrudes it rapidly in a single shot. β Ram Type Push Mechanism: Utilizes a vertical plunger (Ram Type) structure for a stable stroke, ensuring consistent output and weight for every cycle. β Optional Parison Programming: Can be equipped with a multi-point wall thickness control system (such as the Moog Parison Controller) to adjust material distribution across different sections based on product design requirements.
| Screw Size | 75 M/M | 90 M/M | 100 M/M | 110 M/M | 125 M/M | 150 M/M |
| Material | PE / PC / PP | PE / PC / PP | PE / PC / PP | PE / PC / PP | PE | PE |
| Output | 120Kg / Hr | 150Kg / Hr | 180Kg / Hr | 280Kg / Hr | 400Kg / Hr | 550Kg / Hr |
| Production Range | 30L drum | 30L ~ 60L drum | 130L Water tank / drum | 150L open top drum / Float | 125L "L" ring drum | Float / Drum |
- Video
This video features live production footage from a client's facility in Taiwan. Due to the product's irregular geometry after blow molding, manual trimming is performed to remove flash. This ensures that both the aesthetic appearance and final dimensions of the finished product meet our strict quality requirements. This video features live production footage of an Air Duct for Automobile from a client's facility in Taiwan. Due to the product's irregular geometry after blow molding, manual trimming is performed to remove flash. This ensures that both the aesthetic appearance and final dimensions of the finished product meet our strict quality requirements.
- Gallery
Air ducts
Air ducts
Over 35 years of expertise in blow molding equipment make us the preferred choice for long-term partners.
Blow Molding Long, Curved Automotive Air Ducts
Air induction ducts and other hollow automotive components for engine intake, cooling, HVAC and cabin ventilation are long, curved and irregular. This accumulator die head machine forms them in one piece, avoiding assembled joints, and its main task is keeping wall thickness even through every bend.
Parison length, extruder frame height and, where specified, multi-point parison programming are set to the duct geometry. At a customer plant in Taiwan, flash on the irregular duct is trimmed by hand after molding, so trimming should be planned in the cell layout. HDPE is a common resin for these parts, but the grade is set by the part specification. See the automotive parts application for background, and send the duct drawing, resin grade and annual volume for review.