Stretch blow molding machine EBS 3 KL HC ERGON

for PETfor PPfor PET containers

Overview
The EBS KL HC ERGON series is an ultra-compact range of rotary stretch-blow moulders for high-capacity containers (3–10 L). Available in 3, 4 and 6-cavity configurations, the machines are engineered for PET, rPET and PP containers used mainly in food & beverage applications and offer high productivity with reduced operating and maintenance costs.

Models

• EBS KL HC ERGON series: available in 3, 4 and 6-cavity versions.
• Output capability: up to 1,500 bph per cavity; total output per model: EBS 3 = 4,500 BPH, EBS 4 = 6,000 BPH, EBS 6 = 9,000 BPH.

Operation

• Preforms feeding: preforms transfer from hopper to unscrambler, then to an inclined guide and spacing star wheel; the star wheel feeds the rotary mandrel chain carrying preforms into the heating module.
• Preforms heating: IR-lamp heating tunnel with preform size/position checks and automatic rejection; mandrels rotate preforms for uniform heating; liquid cooling protects the protection ring while air cooling manages internal temperatures; a sensor measures preform temperature and adjusts lamp power to match setpoint.
• Preforms stretch-blow moulding: rotary gripper group places preforms into stretch-blow stations; process includes motorized stretching rod plus low-pressure pre-blow followed by high-pressure final blow; counter-pressure air and mechanical mold-holder locking ensure sealing; stations include liquid cooling for mould temperature control.
• Bottles outlet: finished bottles are picked by a rotary gripper group and placed on an air conveyor to filling lines; an accurate pressure-measurement system monitors blowing profiles and rejects non-conforming bottles automatically.

Technical data table
Header | EBS 3 KL HC ERGON | EBS 4 KL HC ERGON | EBS 6 KL HC ERGON
Max. output (BPH) | 4500 | 6000 | 9000
Bottle size | min Ø = 44 mm - max Ø = 215 mm | min Ø = 44 mm - max Ø = 215 mm | min Ø = 44 mm - max Ø = 215 mm
Cavities | 3 | 4 | 6

Advantages and technical features

• Integrated compact module: heating tunnel and stretch-blow carousel combined in a single unit for compact bottling lines and quick installation.
• Motorized stretch rods with electronic drives (cam-free): allow stretch speed changes without mechanical cams and reduce carousel vibration.
• High-performance, low dead-volume valves: shorten pre-blow and blow times and reduce dead volume by ≈50%.
• Liquid cooling on moulds and protection ring plus air cooling in the heating module for temperature control and to prevent neck deformation.
• Tunnel ventilation with high-capacity centrifugal fans to lower preform neck temperature, widen the process window and optimize wall thickness.
• All utilities grouped in a single accessible area inside the machine frame for tidy, simplified connections.
• Double-stage high-pressure compressed air recovery system standard to reduce consumption.
• Compact, visible and accessible compressed air management design.
• Water system managed by flow meter and thermometer for real-time monitoring of each cooling circuit.
• Posyc® operator interface for advanced management, diagnostics and predictive monitoring.
• Motornet System® automation and control for maintaining optimal production parameters and simplifying format changeovers.
• Quick and precise format changeover via tunnel distance adjustment and electronic control of stretch rods.
• Low-wear design: grippers without springs, desmodromic cams, plastic bearings and improved diffuser system to reduce component wear.

Technical specifications

• Series: EBS KL HC ERGON
• Available cavities: 3, 4, 6
• Max. output (per model): EBS 3 = 4,500 BPH; EBS 4 = 6,000 BPH; EBS 6 = 9,000 BPH
• Max. output per cavity: up to 1,500 bph/cavity
• Bottle diameter range: min Ø = 44 mm; max Ø = 215 mm
• Materials moulded: PET, rPET, PP
• Heating: infrared lamps with preform rotation and temperature sensors
• Cooling: liquid cooling for moulds/protection ring; air cooling for heating module
• Stretch system: motorized electronic-driven stretch rods (cam-free)
• Valves: high-performance, low dead-volume valves (≈50% reduction)
• Air recovery: double-stage high-pressure compressed air recovery standard
• Control & HMI: Posyc® operator interface; Motornet System® automation
• Utilities monitoring: compressed air management; water system with flow meter and thermometer
• Construction: ultra-compact integrated tunnel and carousel module; safety doors for maintenance