The Double-L Ring Drum Accumulator Type of Blow Molding Machine
The Double-L Ring Drum Accumulator-Type Blow Molding Machine is designed to produce drums with capacities ranging from 100 L to 250 L. It typically uses High Molecular Weight High-Density Polyethylene (HMW-HDPE) as the raw material, which provides excellent resistance to acids, alkalis, and impacts. The finished drums offer high structural strength and durability, making them suitable for harsh operating environments and demanding transportation conditions. The extrusion output of this machine is approximately 420 kg/hr.
In addition, finished drums are generally required to pass multiple drop tests (for example, dropped from a height of 1.5 meters at different angles, with at least 3 test cycles) to ensure product safety and reliability.
The machine employs secondary-cooling molding technology, which effectively shortens the molding cycle and improves production efficiency while strengthening the drum wall structure, further enhancing product durability. The system can also be equipped with leak detection equipment and drilling units to meet downstream processing and quality inspection requirements.
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
1. Die Head: Accumulator / Vertical Ram Type
● 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. ● Ram Type Push Mechanism: Utilizes a vertical plunger (Ram Type) structure for a stable stroke, ensuring consistent output and weight for every cycle. ● 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.
2. Blow Pin: Bottom Blow Type
Two-Stage Stroke: Bottom blow pin featuring a two-stage descending stroke (for optimized cycle timing and positioning).
| 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 |
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220L double "L" L ring drum blow molding machine can simultaneously produce Double L-Ring Drums and Open-Top Drums, offering excellent flexibility for product changeovers and consistent molding performance. When paired with the MARLEX TR-571 raw material, this accumulator die head blow molding machine fully leverages the resin's high impact resistance, environmental stress crack resistance (ESCR), and superior resistance to acids, alkalis, and chemical corrosion—qualities essential for manufacturing these types of containers. Furthermore, MARLEX TR-571 provides high rigidity and exceptional molding stability, allowing it to withstand high-speed molding and high clamping forces, thereby significantly enhancing both product quality and production efficiency.
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Double L Ring Drum
Double L Ring Drum
Double L Ring Drum
Single L Ring Drum and Open Top Drum
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What a Double L-Ring Drum Line Requires
Double L-ring drums store and transport hazardous liquids for the chemical industry and are handled by their rings, so the drum body and L-rings must be molded accurately. This accumulator die head machine produces 100 L to 250 L double L-ring drums, and open top drums, from high molecular weight HDPE such as MARLEX HXM TR-571, using a 125 mm extruder on the double L-ring drum machine and a die head with two heart-shaped flow channels designed for weld-line-free walls.
A bottom blow pin with a two-stage stroke, an auto-unscrew blow pin for inner thread drums and a post-cooling unit that shortens the cycle are part of the listed configuration. Before shipment, Chen Way performs three complete drop tests from 1.5 m on the neck, body and angle. A leak tester and driller can follow the machine; send drum specifications, resin grade and annual volume to request a quotation.