Large Accumulator Head
Extrusion Blow Molding Machine
(120L – 1000L)
Sailwin SW large series accumulator head blow molding machines are purpose-built for high-volume industrial containers — from 120L chemical drums and 200L double-ring barrels to 1000L IBC tanks and heavy-duty plastic pallets. 42CrMoAl alloy die head, 100-point parison wall thickness control and servo-hydraulic drive deliver consistent output under 24/7 production conditions.
TECHNICAL SPECIFICATIONS
SW Large Accumulator Head Blow Molding Machine — 4 Model Range
Four heavy-duty models covering 120L to 1000L containers. From 200L double-ring chemical drums to full-size 1000L IBC tanks and industrial plastic pallets — all equipped with servo-hydraulic drive, 42CrMoAl die head and 100-point parison wall thickness control as standard.
| Parameter | Unit | SW-S120L | SW-S160L | SW-S260L | SW-S1000L |
|---|---|---|---|---|---|
| Max Container Volume | L | 120 | 160 | 260 | 1000 |
| Output (Empty Cycle) | pc/h | 150~200 | 120~160 | 80~120 | 30~50 |
| Accumulator Shot Capacity | kg (HDPE) | ~12 | ~16 | ~25 | ~95 |
| Clamping Force | kN | 550 | 600 | 800 | 1500 |
| Screw Diameter | mm | 120 | 130 | 150 | 200 |
| L/D Ratio | L/D | 25 | 25 | 25 | 25 |
| Screw Motor Power | kW | 55~75 | 75~90 | 90~110 | 200~250 |
| HDPE Output Capacity | kg/hr | 250~320 | 320~400 | 400~500 | 800~1000 |
| Hydraulic Servo Motor | kW | 37 | 45 | 55 | 110 |
| Max Mold Size (L×W) | mm | 1100×900 | 1200×1000 | 1400×1100 | 2000×1600 |
| Platen Opening Stroke | mm | 600~1400 | 700~1600 | 800~1800 | 1200~2800 |
| Max Die Diameter | mm | 450 | 500 | 600 | 900 |
| Blow Air Pressure | MPa | 0.6~0.8 | 0.6~0.8 | 0.6~0.8 | 0.6~0.8 |
| Machine Weight | Ton | 22 | 28 | 38 | 120 |
| Machine Dimensions | m (L×W×H) | 6×3×5 | 7×3.5×5.5 | 8×4×6 | 14×6×8 |
* All data are for reference only. Sailwin reserves the right to update specifications without prior notice.
FOCUSED APPLICATION AREAS
Three Core Markets — IBC Tank, Plastic Pallet & 200L Drum
Sailwin large accumulator machines are purpose-engineered for the three highest-volume heavy packaging categories. Each application has distinct structural requirements — our machines are configured to meet them all.
Not Sure Which Model Fits Your Product?
Send us your container drawing (or dimensions + volume + material + daily output target) and our engineers will recommend the right machine within 24 hours.
CORE TECHNOLOGY
Heavy-Duty Die Head Technology — 42CrMoAl · FIFO Flow · 100-Point Parison Control
At 120L–1000L scale, die head performance is make-or-break. Residual material, slow colour change and uneven parison sag are the three most costly problems in large-container blow molding. Sailwin's large accumulator die head addresses all three.
First-In First-Out Spiral Flow Channel
The die head uses a First-In First-Out (FIFO) spiral channel design — material that enters the head first exits first, with zero dead zones or material traps. This is critical for large-volume containers where colour changes or material grade switches are frequent. FIFO design reduces colour purge time by 60–70% versus conventional manifold heads, cutting material waste and downtime significantly.
42CrMoAl High-Grade Alloy Die Head
The accumulator cylinder and die head body are precision-machined from 42CrMoAl and 35CrMo alloy steel with full heat treatment and inner surface nitriding — achieving surface hardness HRC 58–62. This is required for processing HMW-HDPE and recycled HDPE, which are significantly more abrasive than standard grades. Die head service life exceeds 10 years under continuous operation.
Parison Wall Thickness Control
Every SW large accumulator machine is equipped with a 100-point electronic parison controller. The system divides the extruded parison into 100 programmable segments and adjusts the die gap opening in real time to compensate for gravitational sag — particularly important for 1000L-scale containers where the parison may be 2–3 meters tall. Wall thickness variation is controlled within ±0.5mm across the full container height.
POWER & SAFETY SYSTEM
Servo-Hydraulic Drive & Industrial Safety — Built for 24/7 Heavy-Duty Production
At 1500 kN clamping force and 95 kg shot capacity, every subsystem on the SW large accumulator machine is engineered for continuous industrial operation — with energy savings, safety interlocks and optional automation that reduce labour cost and downtime.
Servo-Hydraulic Power Unit
The large series uses a closed-loop servo-hydraulic system with proportional pressure and flow control. Unlike fixed-displacement pumps that run at full power continuously, the servo motor adjusts output in real time to match the actual demand of each motion phase — clamping, injection, blowing and opening.
- ✓ 30–50% energy savings vs. fixed-pump hydraulic systems — verified at 24/7 production rates
- ✓ Proportional valve + servo feedback — smooth, shock-free mold movement prevents mold and machine frame fatigue
- ✓ Low hydraulic oil temperature — reduces oil degradation, extends pump and seal service life
- ✓ Siemens PLC + Gefran pressure transducer — real-time closed-loop control with alarm logging
Industrial Safety & Automation
Heavy-duty containers weighing 8–95 kg per cycle require reliable safety systems and optional automation to protect operators and maintain consistent output in unmanned or reduced-crew production environments.
- ✓ Safety light curtain — dual-beam perimeter guarding with instant mold-open interrupt; meets CE Machinery Directive
- ✓ Emergency stop circuit on all four machine sides with positive-break safety relay (Category 3, PL d)
- ✓ Hydraulic pressure safety valve — prevents overload damage to mold and clamping frame during abnormal flash
- ○ Robotic arm take-out system (optional add-on) — auto-extracts containers ≥120L from the mold and conveys to trimming station; reduces 1 operator per shift
- ○ Flash trimming conveyor (optional) — integrated deflashing belt with scrap granulator loop
KEY COMPONENTS
International-Brand Components — Built for Heavy Industrial Reliability
A 1000L IBC machine runs 24 hours a day. The components inside must be reliable. SW large series machines are assembled exclusively with internationally recognized brands — the same suppliers used by European and Japanese press manufacturers.
Siemens S7 series PLC with 10-inch colour touchscreen HMI. Full recipe storage per product, real-time fault diagnostics and optional remote access. Interface is familiar to operators worldwide — reduces training time.
Bosch Rexroth (Germany) or Yuken (Japan) proportional hydraulic valves deliver precise, repeatable flow and pressure control. Critical for the high injection force required during large-volume accumulator discharge — up to 1500 kN clamping under load.
German FESTO cylinders, directional valves and fittings throughout the blow circuit and mold-clamping auxiliaries. Reliable sealing performance at 0.6–0.8 MPa blow pressure — even under 24/7 high-volume cycle conditions.
Italian Gefran pressure transducers and temperature controllers provide real-time closed-loop feedback to the Siemens PLC. Barrel zone temperatures are controlled within ±1°C — essential for consistent HDPE melt quality across multi-hour production runs.
Electronic parison controller with 100 programmable segments. Product recipes are stored on-board — switching from 200L drum to IBC tank profile takes under 2 minutes. Tolerance maintained at ±0.5mm across the full container height.
Schneider Electric (France) contactors, circuit breakers and safety relays throughout the main electrical cabinet. The large series draws up to 250 kW under full load — Schneider's industrial-grade protection components prevent nuisance trips and equipment damage.
DELIVERY & INSTALLATION
Container Shipping & Turnkey On-Site Installation Service
A 1000L IBC machine weighs 120 tonnes and stands 8 meters tall. Shipping, customs clearance and on-site commissioning are real concerns for overseas buyers. Sailwin handles the full logistics chain — from factory disassembly to your production floor running.
Factory Acceptance Test
Full machine trial run at Sailwin factory. Buyer may attend in person or receive video FAT report before payment of balance.
Disassembly & Sea Export Packing
Machine is systematically disassembled and packed into export-grade wooden crates with moisture and shock protection. Loading photos and packing list provided.
Sea Freight & Customs Support
We provide complete export documents (CO, packing list, commercial invoice, CE declaration). FOB Ningbo / Shanghai standard; CIF available on request.
On-Site Installation & Commissioning
Sailwin engineers travel to your factory for full assembly, electrical connection, trial production and operator training. Typical commissioning: 7–14 working days.
What's Included in Our Turnkey Service
- ✓ Foundation drawing provided — civil works specification sent before machine shipment so your site is ready on arrival
- ✓ 2 Sailwin engineers dispatched — stay on-site until machine reaches agreed production rate
- ✓ Operator training included — covers daily operation, routine maintenance, fault diagnosis and parameter adjustment
- ✓ 12-month warranty on all mechanical and electrical components; spare parts dispatched within 48 hours
- ✓ Lifetime technical support via WhatsApp / video call — remote troubleshooting within 2 hours response time
CERTIFICATIONS & FACTORY
CE & ISO Certified — Established 2008, 12,800m² Manufacturing Facility
Every Sailwin large accumulator machine ships with CE Declaration of Conformity and full technical documentation. Our ISO 9001 quality management system covers design, machining, assembly and FAT.
All machines are assembled, tested and accepted at our Taizhou factory before shipment. Buyers are welcome to visit for an in-person factory tour and FAT. Contact us to arrange your visit.
FAQ
Large Accumulator Blow Molding Machine — Frequently Asked Questions
IBC tank price · 200L drum output · shipping size · lead time · on-site installation
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