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Product Description

Feature	2 Cavity Semi-Automatic Machine	Manual Blow Molding Machine	Full Automatic Blow Molding Machine
Production Capacity	Up to 1,200 bottles/hour	200–400 bottles/hour	2,000–5,000 bottles/hour
Operator Skill Required	Intermediate (training in 1–2 days)	High (constant manual oversight)	Advanced (dedicated technician)
Energy Consumption	Low to moderate (3-phase 380V, 15kW)	Low (manual heating)	High (continuous operation)
Scalability	High (can be upgraded with automation add-ons)	Low (limited by manual labor)	Very High (ideal for large factories)

What Are the Key Technical Specifications and Operational Advantages?

Understanding the technical foundation of this machine ensures long-term reliability and optimal performance. Here are the core specifications:

• Model: 2 Cavity Semi-Automatic Stretch Blow Molding Machine

• Power Supply: 3-phase 380V, 50/60Hz, 15kW

• Operating Pressure: 12–20 bar (adjustable via digital gauge)

• Heating System: Infrared heating with PID temperature control (180–250°C)

• Mold Size Range: 100ml – 2L (custom molds available)

• Machine Dimensions: 2,200 × 1,500 × 1,800 mm (L×W×H)

• Weight: 1,200 kg

• Control System: PLC + Touchscreen HMI (user-friendly interface)

One user from a cosmetic brand in Indonesia noted: “The touchscreen interface made it easy for our new staff to learn. We can save up to 10 different production profiles—each with specific temperature, pressure, and cycle time settings—so switching between bottle types is seamless.”

Specification

item	value
Plastic Processed	PET, PC, PP
Max.Bottle Height(mm)	280mm
Neck Diameter(mm)	38mm
Max.Bottle Diameter(mm)	105mm
Bottle Volume(ml)	2000ml
Condition	Used
Application	bottle
Blow Moulding Type	Stretch Blow Moulding
Place of Origin	China
Power (kW)	14
Weight (KG)	710KG
Automation	Semi-automatic
Warranty	1 Year

2 Cavity Semi-automatic 1L-5L Pet Blow Molding Machine 5 Gallon Plastic Bottle Making Machine Water Bottle Blowing Machine– High-Efficiency, Reliable Production for Small to Medium Enterprises
For small to medium-sized beverage, cosmetic, and pharmaceutical manufacturers seeking a cost-effective, scalable solution for producing high-quality PET bottles, the 2 Cavity Semi-Automatic Plastic Bottle Making Machine Stretch Blow Molding Machine for PET Bottle delivers precision, durability, and operational efficiency. Designed with industrial-grade components and intuitive controls, this machine is ideal for startups and growing businesses aiming to streamline their packaging production without compromising on output quality.

How Can a Semi-Automatic Blow Molding Machine Help a Small Beverage Startup Scale Production Efficiently?
One user from a small craft soda company in Thailand shared their experience: “We used to outsource bottle production, but the lead times were too long and costs kept rising. After investing in this 2 cavity semi-automatic stretch blow molding machine, we now produce our own 500ml and 1L PET bottles in-house. The setup was straightforward, and within a week, our team was running full production.”

This machine enables rapid turnaround from preform to finished bottle, reducing dependency on third-party suppliers and allowing greater control over design, color, and production schedules. With a production capacity of up to 1,200 bottles per hour (depending on bottle size and configuration), it supports scalable growth without requiring a full automation overhaul.

What Makes This Stretch Blow Molding Machine Ideal for Custom PET Bottle Design?
Whether you're producing bottles for essential oils, water, or flavored drinks, the ability to customize bottle shape, size, and neck finish is critical. This machine supports a wide range of bottle dimensions, from 100ml to 2L, with adjustable mold clamping and blow pressure systems.

Users have reported success in producing unique bottle profiles—such as ergonomic hand-held shapes and tapered necks—without compromising structural integrity. The machine’s dual cavity design allows for simultaneous molding, doubling output compared to single-cavity models, while maintaining consistent wall thickness and clarity.

Stretch Blow Molding
A thermoplastic forming process where a preform is heated and stretched using a rod (mandrel) before being inflated with compressed air into a mold. This process enhances molecular orientation, resulting in stronger, lighter, and more transparent bottles—ideal for PET applications.
PET Bottle
Short for Polyethylene Terephthalate, a lightweight, recyclable plastic widely used for beverage containers due to its excellent barrier properties, clarity, and resistance to moisture and gases.
Semi-Automatic Machine
A production system that requires minimal manual intervention for loading preforms and removing finished bottles, but does not fully automate the process. Offers a balance between cost and efficiency for mid-sized operations.
How Does This Machine Compare to Fully Automatic and Manual Alternatives?
When evaluating production equipment, it’s essential to compare performance, cost, and scalability. Below is a detailed comparison between this 2 cavity semi-automatic machine and other common options:

How to Set Up and Operate the Machine for Optimal Results?
Proper setup and operation are critical to achieving consistent bottle quality and minimizing waste. Follow these steps for a smooth start:

Install the machine on a level, vibration-free surface with adequate ventilation and access to 3-phase power.
Load preforms into the hopper and ensure they are compatible with the mold (standard PET preforms with 28mm neck finish).
Set the desired temperature profile via the touchscreen—typically 200°C for standard PET.
Adjust blow pressure and cycle time based on bottle size and wall thickness requirements.
Initiate a test run with 10–20 bottles to check for uniformity, clarity, and structural integrity.
Inspect and fine-tune parameters if needed—e.g., reduce pressure if bottles appear thin or uneven.
Begin full production and monitor output every 30 minutes for consistency.
Regular maintenance—such as cleaning the mold cavities, checking air filters, and lubricating moving parts—ensures longevity and consistent performance. Most users report minimal downtime when following the recommended maintenance schedule.

Final Thoughts: A Reliable, Scalable Solution for Modern Bottle Makers
The 2 Cavity Semi-Automatic Plastic Bottle Making Machine Stretch Blow Molding Machine for PET Bottle is more than just a production tool—it’s a strategic asset for businesses aiming to innovate, scale, and maintain quality control. With its robust build, user-friendly interface, and proven performance across diverse industries, it stands out as a top choice in the Machine Centre category.

Whether you're launching a new product line, reducing production costs, or embracing sustainable manufacturing, this machine delivers the precision, efficiency, and flexibility needed to succeed in today’s competitive market.