Open Top Drum Blow Molding Machine | Chen Way
Accumulator die head blow molding machine for open top plastic drums from 100 L to 250 L, with a vertical ram die head and an optional rotary neck cutter.
Open Top Accumulator Type of Blow Molding Machine
This Accumulator Die Head Blow Molding Machine is specifically designed for producing large-opening plastic drums with capacities ranging from 100L to 250L. It is an ideal solution for manufacturing chemical storage tanks, waste liquid drums, fermentation barrels, and agricultural containers.
Featuring an advanced accumulation system for smooth material discharge, the machine ensures precise wall thickness distribution and consistent molding quality. Furthermore, it supports integrated blow molding with injection-molded parts, enhancing production efficiency. The system can be further integrated with post-processing units, such as wide-mouth trimmers (rotary cutters for open-top drums) and robotic handling arms, making it a robust choice for the mass production of high-durability, large-capacity industrial drums.
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
ā 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. ā Ram Type Push Mechanism: Utilizes a vertical plunger (Ram Type) structure for a stable stroke, ensuring consistent output and weight for every cycle. ā 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
Live Machine Trial in Taiwan: Versatile Production of 200L Double-L Ring & Open-Top Drums. Our high-speed accumulator die-head blow molding machine offers superior flexibility and stability when switching between diverse product types. By utilizing MARLEX 50100 resin, the system achieves peak performance in drum production. The resinās high rigidity and resistance to impact and chemicalsācombined with our machine's high clamping force capabilitiesāguarantee stable processing and high-quality output, maximizing overall production efficiency.
- Gallery
Open top drum
Over 35 years of expertise in blow molding equipment make us the preferred choice for long-term partners.
Producing Wide-Opening Drums for Chemicals and Storage
This accumulator die head machine is designed for large-opening plastic drums of 100 L to 250 L, used as chemical storage drums, waste liquid drums, fermentation barrels and agricultural containers. The vertical ram die head discharges the full parison in one stroke, which helps keep wall thickness even around a wide drum body, and molding with injection-molded parts is supported.
Open top drums need a flat mouth for the lid, so the line is usually paired with the rotary cutter for open top drums, and robotic handling can be added. In a factory trial, one accumulator machine switched between 200 L double L-ring and open top drums. The specification table shows the shared accumulator platform range, so confirm drum dimensions, weight and lid design before the screw and clamping configuration is chosen, and send them with your inquiry.