50-S6 All-Electric Injection Stretch Blow Molding Machine

The 50-S6 all-electric injection stretch blow molding machine is a compact 3-station single-stage ISBM system designed for manufacturers producing small and medium plastic bottles from approximately 0.1 to 2 liters.

Unlike conventional hydraulic ISBM machines, the 50-S6 uses an all-electric drive concept for precise machine movement and repeatable process control. It combines preform injection, stretch blow molding and container take-out in one continuous production cycle, allowing finished bottles to be manufactured directly from plastic resin without transporting or reheating separately produced preforms.

With configurations from 1 to 6 cavities, the 50-S6 is suitable for cosmetic bottles, pharmaceutical containers, food packaging, beverage bottles, baby-care containers and specialty plastic packaging made from materials such as PET, PETG, PP, PC, Tritan and other compatible thermoplastics.

Recommended for manufacturers that prioritize precision, clean production, lower noise, process repeatability and reduced hydraulic maintenance.

The 50-S6 is the all-electric model within our compact 3-station injection stretch blow molding machine range.

It is designed for bottle manufacturers that require more than a basic entry-level hydraulic platform and place greater importance on process precision, production cleanliness, repeatability, low-noise operation and simplified maintenance.

The machine starts directly from plastic resin. After the material is plasticized, a preform is injection molded with the neck finish already accurately formed. The rotary system then transfers the preform to the stretch-blow station, where it is stretched and blown into the final bottle shape. The finished container is subsequently transferred to the take-out station.

Because these operations are integrated into one machine, manufacturers do not need a separate preform injection molding machine, preform storage system, preform conveyor or reheating blow molding machine for the same one-step production process.

This makes the 50-S6 particularly attractive for manufacturers producing:

• high-value cosmetic packaging;
• pharmaceutical and healthcare containers;
• PET and PETG specialty bottles;
• PP bottles;
• baby-care containers;
• non-round and custom-designed bottles;
• relatively low- to medium-volume products with multiple SKUs.

For projects where bottle appearance, neck accuracy, dimensional repeatability and production environment are more important than simply purchasing the lowest-cost machine, the 50-S6 should normally be evaluated before the hydraulic 50-V5.

An all-electric ISBM machine is not simply a conventional hydraulic machine with additional servo motors.

The purpose of an all-electric architecture is to provide more direct and controllable motion for critical machine operations while reducing dependence on conventional hydraulic drive systems.

For bottle manufacturers, this can provide several practical production advantages.

More Precise Motion Control

Servo-controlled movement allows important machine motions to be controlled by programmed position, speed and timing.

For bottle projects requiring tight repeatability, this can help maintain more consistent operating conditions from cycle to cycle.

Better Repeatability for Precision Packaging

Cosmetic, pharmaceutical and healthcare bottles often require consistent:

• neck dimensions;
• bottle height;
• body geometry;
• wall distribution;
• appearance;
• weight;
• sealing performance.

The 50-S6 is therefore positioned primarily for manufacturers producing precision packaging rather than commodity bottles alone.

Cleaner Production Environment

Reducing conventional hydraulic drive components can reduce oil-related maintenance requirements and helps create a cleaner machine environment.

This makes an all-electric platform particularly attractive for packaging used in:

• pharmaceuticals;
• medical products;
• cosmetics;
• personal care;
• food;
• infant and baby-care applications.

Low-Noise Production

Electric servo-driven motion can provide quieter operation compared with traditional continuously operating hydraulic systems.

This is valuable for factories running multiple molding machines or operating machines in enclosed production areas.

Lower Routine Hydraulic Maintenance

Conventional hydraulic machines require attention to components such as hydraulic oil, filters, pumps, seals and hydraulic temperature.

An all-electric platform can reduce these hydraulic-related maintenance requirements.

Stable Machine Operation

Electric drive control is less affected by hydraulic oil temperature variation.

This can be beneficial where factories require consistent molding conditions during long production runs.

Suitable for Modern Automated Production

The 50-S6 can be integrated with auxiliary equipment such as:

• automatic material feeding;
• resin drying;
• bottle conveyors;
• robot handling;
• inspection systems;
• leak testing;
• bottle packaging systems.

The 50-S6 integrates the bottle manufacturing process into three continuously rotating production stations.

Station 1 : Preform Injection Molding

Plastic resin is melted and injected into the preform mold.

During this stage, the bottle neck and thread finish are injection molded with high dimensional accuracy.

Unlike a conventional two-step bottle production line, the preform does not need to be stored, transported and reheated in another machine.

Station 2 : Stretch Blow Molding

The rotary system transfers the injection-molded preform to the stretch-blow station.

The preform is mechanically stretched in the axial direction while compressed air expands it against the blow mold cavity.

The combination of stretching and blowing forms the final bottle body and helps control material distribution.

Station 3 : Container Take-Out

After cooling and forming, the finished bottle is released from the mold and removed from the machine.

The machine then continues into the next production cycle.

One Machine: Resin to Finished Bottle

Plastic Resin → Preform Injection → Stretch Blow Molding → Finished Bottle

This integrated process eliminates the need to transfer separately manufactured preforms between different production systems.

The 50-S6 is designed for manufacturers that need the flexibility of a single-stage injection stretch blow molding process.

In a two-step process, preforms are manufactured first, cooled, stored or transported and then reheated before stretch blow molding.

With the 50-S6, the preform and finished bottle are produced in the same machine.

No Separate Preform Production Line

There is no need to install an independent preform injection molding machine for the bottle production process.

No Preform Transportation Between Machines

The preform remains within the integrated molding process.

This can reduce handling and the risk of contamination or surface damage.

No Separate Preform Reheating Stage

Residual process heat from preform injection can be utilized during the subsequent molding process.

Better for Specialty Materials

Single-stage ISBM is especially valuable for many specialty bottle projects involving materials and bottle geometries that are not ideally suited to conventional high-volume two-step PET bottle lines.

Better for High-Mix Production

Manufacturers producing several bottle designs or higher-value packaging products may benefit more from flexibility than from the extremely high output of commodity beverage bottle lines.

The 50-S6 can be evaluated for a wide range of thermoplastic bottle materials.

PET

PET is widely used for transparent cosmetic bottles, beverage bottles, pharmaceutical containers, food bottles and personal-care packaging.

PETG

PETG is commonly selected when excellent transparency, appearance and design flexibility are important.

Typical applications include:

• premium cosmetic bottles;
• skincare packaging;
• beauty packaging;
• healthcare containers.

PP

PP is widely used for pharmaceutical, baby-care, healthcare and household containers.

Single-stage molding can be particularly useful for PP bottle projects where preform temperature control is important.

PC

Polycarbonate can be considered for specialty containers requiring transparency and mechanical performance.

Tritan

Tritan is commonly considered for premium reusable containers and specialty bottles requiring clarity and durability.

PPSU and Other Engineering Resins

For specialty medical or high-temperature applications, materials such as PPSU may be evaluated according to the specific bottle design and processing requirements.

Material Evaluation Is Project-Specific

Material compatibility should not be decided only by resin name.

Our engineering team evaluates:

Material + Bottle Geometry + Bottle Weight + Neck Size + Wall Thickness + Number of Cavities + Required Cycle Time

before recommending the final machine and mold configuration.

Cosmetic Bottles

Suitable for producing premium containers for:

• skincare products;
• lotions;
• serums;
• creams;
• hair-care products;
• perfumes;
• beauty products.

The 50-S6 is particularly suitable where bottle transparency, surface appearance and dimensional consistency are important.

Pharmaceutical Bottles

Typical applications include:

• medicine bottles;
• tablet bottles;
• healthcare bottles;
• reagent containers;
• diagnostic packaging.

Food Packaging

The machine can be evaluated for:

• sauce bottles;
• seasoning bottles;
• edible product containers;
• food jars;
• specialty transparent packaging.

Beverage Bottles

For low- to medium-volume specialty beverage projects, the 50-S6 can manufacture bottle formats within its applicable molding range.

Baby-Care Packaging

Depending on the selected resin, the machine can be used for products such as:

• feeding bottles;
• baby-care containers;
• specialty PP or transparent containers.

Personal Care and Household Packaging

Applications can include:

• hand wash bottles;
• liquid soap packaging;
• personal-care bottles;
• specialty household containers.

The 50-S6 is not limited to standard round bottles.

Depending on mold design and resin characteristics, the machine can be evaluated for:

Round Bottles

Suitable for conventional pharmaceutical, cosmetic, beverage and food applications.

Oval Bottles

Frequently used in cosmetic and personal-care packaging.

Square and Rectangular Bottles

Suitable for differentiated shelf presentation and premium packaging designs.

Wide-Mouth Bottles and Jars

Depending on neck size and bottle dimensions, wide-mouth packaging can be evaluated.

Special-Shaped Bottles

One-step ISBM is particularly useful for high-value bottles with distinctive shapes where appearance and wall distribution are important.

Choose the 50-S6 if:

You prioritize:

• all-electric technology;
• process precision;
• production repeatability;
• clean production;
• lower noise;
• premium packaging;
• reduced hydraulic maintenance.

Choose the 50-V5 if:

You prioritize:

• lower initial machine investment;
• conventional hydraulic technology;
• familiar hydraulic maintenance;
• general-purpose bottle production.

Not Sure Which Model Fits Your Bottle?

Send us your bottle drawing, material, bottle weight, neck dimensions and expected hourly output.

Our engineers can compare the 50-S6 and 50-V5 based on your actual bottle project.

The 50-S6 is designed around an electric servo-control concept to provide accurate and repeatable movement throughout the molding cycle.

The machine combines:

Servo-Controlled Motion

Critical machine motions are controlled according to programmed position, speed and timing.

Precision Rotary Indexing

The rotary system transfers preforms and bottles accurately between the three production stations.

Stable indexing is important for mold alignment, repeatability and long-term machine operation.

Integrated Machine Control

Operators can manage production parameters through the machine control interface.

Key process settings can include:

• injection parameters;
• screw operation;
• station timing;
• stretching parameters;
• blowing sequence;
• mold temperature;
• cooling time;
• alarms;
• production monitoring.

Compact Vertical Molding Structure

The compact machine layout allows injection molding, stretch blowing and bottle take-out to be integrated into a relatively small production footprint.

The production capacity of an ISBM machine cannot be accurately determined by machine model alone.

Actual cycle time and hourly output depend on factors including:

• resin type;
• bottle weight;
• wall thickness;
• bottle geometry;
• neck diameter;
• number of cavities;
• injection cooling requirement;
• stretch-blow process;
• mold temperature;
• required bottle quality.

For this reason, we recommend evaluating the 50-S6 using the customer’s actual bottle drawing rather than quoting a theoretical maximum output.

How We Calculate Your Expected Output

Hourly Output = Number of Cavities × 3,600 ÷ Actual Cycle Time

For example, once your bottle drawing and material are confirmed, we can estimate:

• recommended cavity number;
• expected cycle time;
• bottles per hour;
• bottles per 24 hours;
• required compressor capacity;
• chiller capacity;
• dryer requirements;
• estimated machine configuration.

Send Us:

1. Bottle drawing
2. Bottle photo
3. Plastic material
4. Bottle weight
5. Neck dimensions
6. Desired hourly output

We do not supply only the ISBM machine.

For a new bottle project, we can evaluate the complete manufacturing solution from bottle design to production.

ISBM Machine

50-S6 all-electric single-stage injection stretch blow molding machine.

Injection and Blow Mold

Mold configuration is designed according to:

• bottle geometry;
• neck structure;
• material;
• bottle weight;
• cavity number;
• expected cycle time.

Bottle Development

If your project is still at the bottle design stage, our team can evaluate whether the proposed bottle is suitable for single-stage ISBM production.

Auxiliary Equipment

A complete production system may include:

• resin dryer;
• dehumidifying dryer;
• material loader;
• air compressor;
• high-pressure compressor;
• air tank;
• air filter;
• water chiller;
• mold temperature controller;
• conveyor;
• robot;
• bottle inspection equipment;
• bottle packaging equipment.

Turnkey Bottle Production Line

For new factories, we can configure the machine, mold and auxiliary equipment as a complete production system.