Accumulator Head Extrusion
Blow Molding Machine (30L–80L)
Sailwin SW medium accumulator head extrusion blow molding machines are engineered for 30L to 80L HDPE drums, jerrycans, chemical containers and industrial tanks. Servo-hydraulic drive with proportional control cuts energy use by 30–50%. 100-point parison wall thickness control ensures consistent product quality across every cycle.
TECHNICAL SPECIFICATIONS
SW Medium Accumulator Head Blow Molding Machine — 4 Model Range
Four models covering 30L to 80L containers — including a dedicated PC (Polycarbonate) version for water dispensers and special applications requiring 1.2 MPa blow pressure. All figures are reference values; custom configurations available.
| Parameter | Unit | SW-S30L | SW-S30L PC | SW-S60L | SW-S80L |
|---|---|---|---|---|---|
| Max Container Volume | L | 30 | 30 | 60 | 80 |
| Output (Empty Cycle) | pc/h | 600 | 600 | 450 | 360 |
| Screw Diameter | mm | 80 | 82 | 90 | 100 |
| L/D Ratio | L/D | 25~28 | 25~28 | 25~28 | 25~28 |
| Screw Motor Power | Kw | 30~37 | 30~37 | 37~45 | 45~55 |
| HDPE Output Capacity | Kg/hr | 100~120 | 110~130 (PC) | 130~160 | 180~200 |
| Hydraulic Servo Motor | Kw | 18.5 | 18.5 | 18.5 | 22 |
| Clamping Force | Kn | 215 | 215 | 260 | 300 |
| Platen Opening Stroke | mm | 370~800 | 370~800 | 470~1000 | 520~1200 |
| Platen Size | mm | 650×580 | 650×580 | 700×950 | 800×1000 |
| Accumulator Capacity | L | 5 | 4.4 | 6.6 | 12 |
| Max Die Diameter | mm | 300 | 300 | 350 | 400 |
| Blow Air Pressure | MPa | 0.8 | 1.2 ★ | 0.8 | 0.8 |
| Machine Weight | Ton | 12 | 12.5 | 14.5 | 16 |
| Machine Dimensions | m (L×W×H) | 4.5×2.1×3.8 | 5.2×2.2×4.5 | 5.2×2.2×4 | 5.4×2.2×4.5 |
* All data are for reference only. Sailwin reserves the right to update specifications without prior notice.
CORE TECHNOLOGY
Accumulator Die Head Technology — 100-Point Parison Wall Thickness Control
The accumulator die head is the heart of a medium EBM machine. Sailwin's technology combines premium-grade alloy steel, precision spiral flow channels, and electronic parison control to deliver containers with consistent wall thickness, high impact strength, and zero weld-line weakness.
▶ Premium Steel Die Head — Built to Last
The accumulator cylinder and die head are precision-machined from 38CrMoAlA, 42CrMov, and 35CrMo high-grade alloy steel with full heat treatment, achieving surface hardness HRC58–62. These materials provide exceptional wear resistance against high-viscosity HDPE and HMW-HDPE resins at operating temperatures.
The internal spiral flow channel design ensures smooth, pressure-balanced resin flow with no dead zones. Each flow path's individual pressure and flow rate is independently adjustable — critical for multi-layer wall uniformity on large-volume containers.
100-Point Parison Controller & Motorized Traverse Frame
Every SW medium accumulator machine is equipped with an electronic parison wall thickness controller that divides the parison into up to 100 programmable control points. It adjusts the die gap opening in real time to compensate for gravitational sag, keeping wall thickness variation under ±0.3mm for 30L/60L drums.
BUYER'S GUIDE
Accumulator Head vs Continuous Extrusion — Which Is Right for 30L–80L?
Many buyers of 30L–80L containers face this exact question. Here's an honest comparison based on container size, material, and production requirements.
Verdict: If your container is 30L or larger, requires no weld lines, uses HMW-HDPE, or must pass UN certification drop tests — the accumulator head machine is the right choice. For containers under 20L in high-volume continuous production, the continuous extrusion machine is more efficient.
ENERGY SYSTEM
Servo Hydraulic Drive — 30%–50% Energy Saving vs Traditional Systems
Proportional Hydraulic System with Servo Motor Control
SW medium accumulator machines use a servo-motor-driven hydraulic pump rather than a fixed-speed induction motor. The servo motor adjusts its speed in real time to match the actual hydraulic demand at each stage of the blow cycle — idle stages draw near-zero power.
The proportional hydraulic system (adopted from precision machine tool technology) provides smooth, controllable oil pressure and flow with fast response, reducing hydraulic shock and extending seal and valve life significantly.
KEY COMPONENTS
International-Brand Components for Long-Term Reliability
Every SW medium accumulator machine is built with internationally recognized components — the same brands used in German and Japanese industrial machinery. No compromises on the parts that matter most.
Siemens S7 series PLC with touchscreen HMI panel. Full parameter storage, fault diagnosis display and remote monitoring capability. Industry-standard interface familiar to operators worldwide.
Yuken (Japan) proportional hydraulic valves provide precise, repeatable flow and pressure control. Long service life, low heat generation and fast response — essential for consistent accumulator injection speed.
German-made FESTO cylinders, valves and fittings throughout the pneumatic circuit. Proven sealing performance in high-cycle industrial environments with minimal maintenance intervals.
100-point programmable parison controller with servo-actuated die gap. Profiles are saved per product — switching between container types requires only a program recall, not manual re-tuning.
Segmented cast aluminum heating bands with independent zone PID temperature control. Uniform barrel temperature distribution ensures consistent melt quality for HDPE, PP and ABS materials.
Robotic take-out arm with light curtain safety sensor protects operators during high-speed production. Compliant with CE Machinery Directive safety requirements for industrial blow molding equipment.
Need Specific Component Configurations or Spare Part Lists?
We can customize brand specifications based on your factory's local maintenance requirements.
Request Component Specs & Quotation →APPLICATIONS
What Can the SW 30L–80L Accumulator Machine Produce?
From 30L chemical drums to automotive fuel tanks — SW medium accumulator blow molding machines serve industrial packaging manufacturers across 5 major sectors.
CHEMICAL
30L30L HDPE Chemical Drum
Standard 30L open-top or closed-head HDPE drum for chemicals, solvents and liquids. UN certified.
STACKABLE
60L60L Stackable Drum
Interlocking stackable drum with ribbed base. Resistant to static loads ≥500kg. Ideal for paint & agrochemicals.
BLUE DRUM
30–60LStandard Blue Chemical Drum
Industry-standard blue HDPE drum for chemical & food industries. UN/DOT certified transport options.
AGRICULTURE
20–40LElectric Sprayer Tanks
HDPE tanks & housings for agricultural sprayers. Complex geometry with integral handles in one cycle.
AUTOMOTIVE
PARTSAutomotive Fuel Tanks & Parts
HDPE fuel tanks, fluid reservoirs & air ducts. No-weld-line construction ensures superior strength.
CUSTOMCustom Mold & Special Container?
Need a machine tailored for unique product shapes, multi-layer co-extrusion, or specific cycle speeds?
QUALITY & CERTIFICATION
CE Certified — Every SW Accumulator Machine Factory Acceptance Tested
FAQ
Accumulator Head Blow Molding Machine — Frequently Asked Questions
Explore More Sailwin Extrusion Blow Molding Machines
GET YOUR ACCUMULATOR MACHINE FACTORY PRICE
Ready to Order Your 30L–80L Accumulator Blow Molding Machine?
Share your container volume, material, daily output target and destination port — our engineers will send a detailed quotation and machine recommendation within 24 hours.
