1000-1500L Accumulator Head High-Pressure Water Tank Blow Moulding Machine for

The HYBM-1500AH is a high-pressure accumulator head extrusion blow moulding machine specifically configured for the production of 1000-liter to 1500-liter water storage tanks destined for Middle Eastern construction sites and hot water storage applications.

The machine distinguishes itself through a 16-liter accumulator head capable of delivering melt at 800mm/s push-out speed with a maximum melt pressure of 35MPa, enabling the production of tanks with consistently thick wall sections required for above-ground construction site water storage where tanks face impact from construction debris, forklift handling, and prolonged exposure to 50°C+ ambient temperatures.

The accumulator head design is particularly advantageous for producing tanks from high-molecular-weight HDPE grades with melt flow indices below 0.2 g/10min, which provide superior environmental stress crack resistance (ESCR) exceeding 1,000 hours per ASTM D1693 Condition B.

This is critical for hot water storage applications common in the GCC region, where rooftop tanks routinely contain water at temperatures reaching 55°C to 65°C during summer months due to solar heating of supply pipes and roof surfaces.

The machine is also pre-certified for SASO compliance, streamlining the import process into Saudi Arabia which represents the single largest market for rotationally molded and blow-molded water tanks in the Middle East.

• High-Speed Accumulator Head: The 16-liter first-in-first-out accumulator head with hydraulically actuated ram delivers parison push-out speeds up to 800mm/s, enabling the formation of heavy parisons weighing up to 28kg in under 4 seconds. This minimizes parison sag for high-melt-strength HDPE grades, ensuring uniform wall thickness in the finished product even for tanks with height-to-diameter ratios exceeding 1.8:1.
• ESCR-Optimized Material Processing: The 110mm barrier screw with a 32:1 L/D ratio is specifically profiled for processing bimodal HDPE grades such as BorSafe HE3490-LS and Hostalen CRP 100, which achieve ESCR values above 1,000 hours. The gentle screw compression profile maintains melt temperature below 210°C to prevent thermal degradation of the high-molecular-weight tail fraction responsible for stress crack resistance.
• GCC Climate Cooling System: The hydraulic oil cooling circuit features an oversized air-blast cooler with 150% of nominal capacity plus an auxiliary water-to-oil shell-and-tube heat exchanger connection point, enabling factory operators in Dubai, Doha, and Riyadh to maintain hydraulic oil temperature below 50°C even when the machine is operating in un-air-conditioned factory spaces at 45°C ambient.
• Construction-Grade Tank Wall Programming: The 200-point radial parison programmer with Moog servo-valve control allows operators to program reinforced wall thickness zones at tank corners, base-to-wall transitions, and threaded fitting bosses. Construction site tanks typically require 30-40% thicker walls at the base corner radius to withstand impact from forklift handling during site logistics.
• SASO-Ready Documentation Package: The machine ships with a complete SASO conformity assessment documentation package including electrical safety test reports, mechanical guarding compliance certificates, and CE declaration of conformity cross-referenced to applicable SASO standards, reducing Saudi customs clearance time by an estimated 2 to 3 weeks.