STRETCH BLOW MOLDING

www.serac-group.com

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SMART PACKAGING MACHINES

OPTIMIZED » CONVENIENT » EFFICIENT » MODULAR

SBL SeracBlowLinear

FROM PET PREFORM TO BOTTLE

WHy ARE PET BOTTLES SO POPuLAR?LIGHT WEIGHT, DuRABLE, DISTINCTIvE

PET plastic containers are a popular choice for fillers due to the numerous benefits they provide both to manufacturers

and consumers, in terms of design, costs reduction and convenience.

Fruit drinks Sauces Home and Personal care

Edible oilMilk drinks

Benefits of PET bottles

• Lightweight: Cost-effective to produce and require less energy to transport.

• Cost effective: Reduction in the price point of PET versus other material such as high density polyethylene.

• Safe: Do not shatter and cause a hazard if broken or damaged.

• Convenient: Because they are safe, lightweight, squeezable, they are also convenient for on-the-go consumption.

• Re-sealable: Suitable for multi-serve packs.

• Recyclable: Can be recycled so that the PET can be used over and over again.

• Sustainable: Increasing numbers of PET plastic bottles are made from recycled PET.

• Distinctive: Can be molded into different shapes, colors, or clear packaging to display the product enabling brands to use them to build identity.

• Flexible: Manufacturers can switch from one bottle shape or size to another, meaning a high level of efficiency and freedom of material choice.

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SMART SIZING TO THE RIGHT OUTPUT

The Serac Blow Linear (SBL) series of PET blow molding machines are the obvious solution for medium-size bottle fillers

who want to keep control of their transporting and storing costs, while optimizing the quality of their bottles.

A WIDE RANGE OF FORMATS uP To 12,000 PET BoTTLES PER houR (300ML)No ovER-SizE, MaxiMuM FLExiBiLiTy

Serac blow molding machines are designed to produce formats ranging from very large, such as 8 liters edible oil

containers, to as small as 50 ml for samples or premium products.

The output rate ranges from 2,400 to 12,000 bottles per hour, which brings new opportunities to manufacturers

of high added value liquid products or medium size batches.

SBL SeriesMax.

volume (l)Max.

output ( bph)

8 0,3 12,000

6 0,6 10,800

5 1,5 9,000

4 2,5 7,200

3 5 4,000

2 8 2,400

up to 1,800 bottles per hour per cavity.

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SMART DESIGNFOR MORE USER FRIENDLINESS

The SBL series immediately distinguishes itself with its innovative design, which makes it operator safe and user friendly,

increasing production uptime.

OPERATOR FRIENDLy MACHINEHIGH vISIBILITy, EASy ACCESS

The operator can visually check each step of the process: feeding, heating, stretching & blowing, all performed at eye level.

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Features Benefits

The electrical cabinet is embedded on the machine. »Direct access to the electrical cabinet with

no rewiring during installation.

Tool-free lamp replacement. » Simple and safe replacement of lamps.

The Human machine interface uses a touch screen B&R PLC centrally located at hand-level on the machine.

»Operator interface within the operator’s

immediate reach.

Mold change-over sliding rack is located at the front of the machine.

» Simple and effortless replacement of molds.

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OPERATOR FRIENDLy HMICLEAR, POWERFuL, INTuITIvE

OPERATOR SAFE ENvIRONMENTREDuCED RISKS, REDuCED NOISE

Features Benefits

The Human Machine Interface records production indicators for heating, stretching, and blowing operations.

» Helps maximize efficiency.

The user interface is easy to use with clear graphical illustrations.

» Reduces operator training time.

The extensive use of brushless technology allows most operations to be handled from the operator control panel.

» Speeds up product changeover.

Features Benefits

Solid structure in electro-welded steel. » Reduces vibrations and noise levels.

Access to internal parts of the machine is simplified with wide sliding doors.

» Operators circulate freely around the machine.

The machines comply with the strictest security standards, such as safety switches on all gates.

» Guarantees a safe production environment.

Self contained and compact solution.

The Human Machine Interface is the central point

for production management, monitoring and reporting.

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SMART CONCEPTIONFOR TOP EFFICIENCY

The SBL machines are equipped with state of the art technologies and integrate proven, long-lasting materials.

They offer above-grade production quality with low maintenance needs.

1 Preforms infeed rail with gravity chute.

2 Preforms infeed star wheel for pitch adjustment and dedusting module (option).

3 Preforms are gripped with spindle nozzles for transfer to the oven.

4 Preforms are transferred to the molds and contained inside the pressing unit.

5 Finished bottles are transferred out of the blow molding unit (interface with Serac filler, interface to air-conveyor,

table-top conveyor or bulk discharge).

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Features Benefits

From infeed to exit, only few transfer points are necessary.

»Ensures smooth and precise movements

with no fall-out.

Spindle nozzles are designed to ensure preforms are firmly held by the inside of the neck.

»High quality finished packages with

no body manipulation.

A reliable high speed 4 axis brushless motion system carries the preforms out of the oven in batches

and removes them from the mold.» Maximizes the blowing time.

Preforms and bottles are always positively transferred. » No risk of body damage.

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Our patented transfer system ensures accurate pitch adjustements and excellent repeatability.

RELIABLE AND SAFE TRANSFERS NO jAM, NO BOTTLE DROP, NO SCRATCHES

TOTAL CONTROL OF THE HEATING PROCESSNo ovER-hEaTiNg, No NECk DEFoRMaTioN, uNiFoRM BoTTLE ThiCkNESS

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10Tg Tc Tm

85°C / 185°F 130°C / 270°F 250°C / 480°F

Temperature

Rigidity Log Modulus (dyn/cm2)

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RUBBERY

GLASSY

RUBBERY LIQUID

INCREASING POLYMER MOLECULAR AR WEIGHTINCREASING POLYMER MOLECULAR AR WEIGHT

Heated to a temperature above its glass transition temperature (about 105°c), PET softens and can be molded

to its desired shape. As the heat of the PET increases, its structure goes from a glass or amorphous state,

with unorganized molecules, to a semi crystalline/rubbery state, and finally to a liquid state.

• Tg (+/-85°c): temperature transition to rubber

• Tc (+/-130°c): temperature transition to crystal

• Tm (+/-250°c): temperature transition to melt

To give you total control of the heating process, the SBL series is equipped with new Generation of NS-IRS heating boxes from Olicorp.

Features Benefits

The energy supplied to the radiation lamps is constantly monitored and each lamp can be adjusted individually.

» Extremely precise heat distribution.

The preforms circulate around both sides of the IR oven in a continuous motion.

» Consistent heat penetration.

The rotations of performs in front of lamps provide perfect homogeneity of circumferential temperature.

» Homogeneous heat penetration.

Powerful fans and heat-reflecting polished panels distribute the heat evenly inside the perform material.

» Uniform bottle thickness.

The system cools down the preform necks to ensure they stay in shape.

» No neck deformation.

Each batch of preform is temperature tested when exiting the oven and rejected if not compliant.

» Guaranteed conformity of heating process.

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PERFECT SHAPING OF LIGHT WEIGHT BOTTLESNO PARTLING LINES, NO DISTORTION

Longitudinal stretching Longitudinal +circumferential stretching

Circumferential stretching

The final bottle shape results from the combined actions of the longitudinal and circumferential stretches within the mold.

Features Benefits

The stretching rods are driven by servo-motors. »Accurately stretches your light weight bottles up

to their limit without distorting them.

Solenoid pre-blowing and blowing valves are based on the Seitz technology.

»Guarantees high blowing precision and repeatability

for perfect inflating into the cavity shape.

The pressing unit sustains up to 50 tons of force for a perfect closing of the mold.

» Ensures limited partling lines appear on your bottles.

The mold opens and closes in 0.6 seconds. » Allows for more heating time.

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CoMBox Smart Integrationwith Serac Fillers

FROM PREFORM TO FILLED BOTTLE

OPTIMIZED » CONVENIENT » EFFICIENT » MODULAR

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SMART INTEGRATIONWITH OUR FILLERS

For several years now, the gap between packaging manufacturing and filling has been diminishing.

With 40 years experience in designing and manufacturing filling machines, we ought to provide you with the capability

to integrate the SBL blower with our range of fillers-cappers.

The COMBOX series (blow-fill-cap) is ideally suited for high value added products and low/medium size batches:

no over-sizing, no over-investment.

BENEFIT FROM INTEGRATED SySTEMSCOST REDuCTION, HIGHER quALITy, INCREASED uPTIME

HIGH RELIABILITy AND EFFICIENCyWORKING PRINCIPLE

integrated systems incorporating blowing, filling and capping are growing in popularity

as they offer valuable benefits:

• Lower investment than in classic bottles packaging (no silos, unscramble, air conveyor…).

• Maintenance costs savings with less equipment and less spare parts.

• Labor cost savings with only 1 operator for 2 machines.

• Material cost savings: Bottles weight can be reduced as bottles transportation is not required.

• improved hygiene: Less risks of dust present in the bottles, hygienic level of the bottle is naturally insured

by PET perform heating and direct transfer to the filler.

• higher flexibility: Fewer parts to change and set-up to be modified with optimized format change-over.

Production start-up

Since blowing machines only run at a constant production rate, a special filling mode is used on the filler-capper

to ensure it adjusts quickly to the blower output.

A unique and patented transfer system converts the sequential motion of the linear blower into a continuous motion

adapted to our rotary fillers.

During production

Bottles enter the filling carousel, are filled, controlled, monitored, validated, capped.

The machine continuously measures the final weight of each bottle, compares with the target weight, automatically

adjusting the force fill factor to guarantee a constant performance over time.

End of production

When the order is given to stop producing after a certain amount of bottles, both machines

communicate with each other to ensure all remaining preforms in the blower are used and properly filled and capped.

COMBOX: The only monobloc combining the advantages of a linear blower with a rotary weight filler!

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CoMBox H2F »

CoMBox CANOPY »

CoMBox RB »