Ziqiang Machinery, a China-based manufacturer of blow molding equipment, builds fully automatic double station EBM machines for international importers, distributors, OEM/ODM buyers, and factory procurement teams sourcing reliable production equipment. This guide covers the machine's key features, technical specifications, control system, compatible materials, and real-world applications, along with practical answers to the questions buyers ask most before placing an order.
Key Features of Our Double Station Extrusion Blow Molding Machine
• Two independent mold stations on a single machine base for continuous, high-volume output
• PLC and HMI touchscreen control for one-click operation and real-time production monitoring
• Servo-assisted extrusion system for stable parison thickness and reduced material waste
• Heavy-duty steel frame built for long-term, multi-shift factory use
• Compatible with HDPE, PE, PP and PVC raw materials
• Adjustable clamping force and mold-closing speed for different bottle and container sizes
• Optional add-ons such as automatic deflashing and leak-testing stations for finished parts
Technical Specifications & Machine Parameters
Exact parameters vary by model, bottle size, and mold configuration. The table below gives buyers a general reference range for a typical Fully Automatic Extrusion Blow Molding Machine (Double Station); Ziqiang's sales engineers can confirm the exact datasheet for your project.| Parameter | Typical Range (Double Station) |
| Clamping force per station | Model-dependent — confirm with sales engineer |
| Max. parison diameter | Model-dependent — matched to bottle/mold size |
| Container volume range | Small bottles up to large jerry cans / drums |
| Control system | PLC + HMI touchscreen |
| Drive system option | Hydraulic or energy-saving servo |
| Compatible materials | HDPE, PE, PP, PVC |
| Number of mold stations | 2 (double station) |
Fully Automatic Control System (PLC/HMI) Explained
The machine runs on a PLC-based control cabinet paired with an HMI touchscreen, so operators set parameters such as parison thickness, blowing time, and mold temperature directly on screen instead of adjusting mechanical valves by hand. Recipes for different bottle models can be saved and recalled, which shortens changeover time when a factory switches between products.Real-time monitoring displays cycle count, fault alarms, and station status side by side, so a single operator can supervise both stations at once. This reduces training time for new staff and lowers the chance of scrap caused by manual error, which matters for buyers running multiple shifts with rotating operators.
Double Station Design: Higher Output, Lower Cost Per Bottle
A double station layout means two molds are extruded, blown, and cooled within the same machine cycle, using one set of core drive components, one hydraulic or servo power unit, and one control cabinet. Compared to running two separate single-station machines, this shares the fixed costs of the base machine across twice the output.For buyers, the practical benefit is a lower cost per finished bottle, drum, or container once volume increases, along with less floor space per unit of output and fewer machines to maintain. It is a natural next step for factories that started with a Fully Automatic Extrusion Blow Molding Machine (Single Station) and are now scaling toward higher order volumes.
Materials Compatible: HDPE, PE, PP & PVC Bottle Production
The machine is designed to process common commodity plastics used in packaging and industrial containers:• HDPE – bottles, jerry cans, and drums that need good impact resistance and chemical stability
• PE – general-purpose bottles and containers for household, food-contact, and daily chemical products
• PP – containers that need higher heat resistance, such as hot-fill or automotive fluid bottles
• PVC – select industrial and packaging applications where PVC is the required material
Screw and barrel settings, along with die-head design, can be adjusted to match the melt characteristics of each resin, which helps maintain consistent wall thickness across different materials.
Applications: Chemical Drums, Jerry Cans, Bottles & Containers
Buyers use double station extrusion blow molding machine equipment across several product categories:• Chemical and industrial drums for agrochemicals, lubricants, and cleaning products
• Jerry cans for fuel, water, and liquid chemical transport
• Household and daily chemical bottles, including detergent and cleaning bottles
• Food-grade and beverage containers where PE or PP is approved for the application
• Automotive fluid containers and other industrial packaging
Mold design determines the exact container shape and volume, and Ziqiang supports OEM/ODM mold development so the finished product matches your brand's packaging specification.
Energy-Saving Servo System vs. Traditional Hydraulic System
Traditional hydraulic extrusion blow molding machines run the pump at a constant speed regardless of the actual load in each cycle stage, which wastes energy during idle or low-demand phases. A servo-driven system adjusts motor speed to match real-time demand, cutting energy use during idle time and reducing heat generation in the hydraulic oil.| Feature | Traditional Hydraulic System | Energy-Saving Servo System |
| Energy consumption | Constant, higher idle usage | Adjusts to load, lower idle usage |
| Noise level | Higher | Lower |
| Precision control | Standard | More precise parison control |
| Oil temperature | Rises faster, needs more cooling | Runs cooler, less cooling load |
| Maintenance | Standard hydraulic servicing | Standard servicing, fewer thermal issues |
Single Station vs. Double Station Extrusion Blow Molding Machine: Which Is Right for You?
Both configurations use the same core extrusion and blow molding process; the difference is output capacity and upfront investment.Choose a Fully Automatic Extrusion Blow Molding Machine (Single Station) if your order volumes are moderate, your factory floor space is limited, or you are entering a new product line and want a lower initial investment.
Choose a Fully Automatic Extrusion Blow Molding Machine (Double Station) if you already have steady, high-volume demand, need to reduce cost per bottle, or want to consolidate production onto fewer machines.
Many buyers start with a single station line for a new SKU, then add a double station machine once demand is proven — Ziqiang's sales team can help plan this scale-up path based on your target output.
Fully Automatic vs. Semi-Automatic Extrusion Blow Molding Machines
A fully automatic machine handles parison extrusion, mold closing, blowing, and part ejection without manual intervention at each cycle, which suits factories running continuous production with limited labor. A Semi-Automatic Blow Molding Machine, by comparison, needs an operator to manually load, trim, or eject parts at certain steps, which lowers the machine's price but also its output speed and consistency.Buyers testing a new product, working with very low order volumes, or operating with a tight equipment budget sometimes start with a semi-automatic line before moving to a Injection Stretch Blow Moulding Machine or fully automatic EBM setup as volumes grow.
What Is a Double Station Extrusion Blow Molding Machine Used For?
This machine type is used by manufacturers and packaging companies that need to produce plastic bottles, jerry cans, drums, and industrial containers at scale, without running two separate single-station machines. Typical buyers include contract packagers, chemical and agrochemical companies producing their own containers in-house, and bottle manufacturers supplying brand owners in the food, household, and industrial sectors.How Much Does a Fully Automatic Extrusion Blow Molding Machine Cost?
Price depends on several factors: machine tonnage and mold-clamping capacity, single or double station configuration, hydraulic or servo drive system, mold cost and complexity, and any automation add-ons such as deflashing or leak testing. Because these variables change from project to project, Ziqiang provides a formal quotation only after understanding your target bottle size, output volume, and material.Buyers comparing suppliers should request a full quotation broken down by machine, mold, and optional accessories, rather than relying on a single headline number, since mold cost in particular can vary widely by container shape and cavity count.
What Bottle Sizes Can This Machine Produce?
Bottle and container size range depends on the specific model and mold selected, from smaller household bottles up to larger jerry cans and industrial drums. Since Ziqiang's EBM lineup includes multiple model sizes across single and double station configurations, the sales team matches the right model to your target container volume and neck/handle design during the inquiry stage.How Long Does Delivery Take for a Double Station EBM Machine?
Lead time for a made-to-order fully automatic EBM machine generally depends on mold design complexity, whether a standard mold or a fully custom OEM mold is required, and current production scheduling. Buyers should confirm the exact lead time with Ziqiang's sales team at the quotation stage, since custom mold development typically adds more time than an order using an existing mold design.
Why Choose Ziqiang as Your Extrusion Blow Molding Machine Manufacturer
Zhangjiagang Ziqiang Machinery has been developing and manufacturing blow molding equipment for over 20 years, serving more than 1,000 customers across more than 30 countries and regions. The company's product range spans injection blow molding machine, extrusion blow molding machine, and Injection Stretch Blow Moulding Machine lines, which means buyers can source multiple types of blow molding equipment from a single, established supplier instead of managing several vendors.For international B2B buyers, this also means one point of contact for technical questions, spare parts, and future equipment expansion as your product line grows.
Factory Certifications, Warranty & After-Sales Support
Ziqiang supports international buyers with export documentation, container loading guidance, and after-sales technical support by phone, email, and WhatsApp. Standard machine warranty terms and specific certification documents are confirmed per order — buyers should request the current certification list and warranty terms directly from the sales team so the information matches the exact model and export destination.Frequently Asked Questions
Q1: What is a Fully Automatic Extrusion Blow Molding Machine (Double Station)? It is an EBM machine with two mold stations built into one machine frame, so it extrudes, blows, and cools two parts per cycle instead of one, roughly doubling output compared to a single-station machine of similar size.Q2: Can this machine process both HDPE and PP? Yes. With the correct screw, die-head, and processing settings, the machine can run HDPE, PE, PP, and PVC, though each material needs its own temperature and cooling profile for best results.
Q3: Is the double station machine harder to operate than a single station model? No. Both stations are managed through the same PLC/HMI control panel, so one trained operator can monitor and run both stations without needing double the staff.
Q4: Do you provide molds for custom bottle shapes? Yes, Ziqiang supports OEM/ODM mold development so the finished bottle, jerry can, or drum matches your required shape, volume, and neck or handle design.
Q5: What support is available after the machine ships? Ziqiang's team provides remote technical support, spare parts guidance, and export documentation assistance for international buyers; specific warranty terms are confirmed at the order stage.
Q6: How do I get an accurate quotation? Share your target bottle or container size, monthly output goal, material (HDPE, PE, PP, or PVC), and whether you need a custom mold — Ziqiang's sales engineers will then prepare a quotation matched to your project.
Conclusion
A Fully Automatic Extrusion Blow Molding Machine (Double Station) is a practical choice for buyers who need higher, more consistent output from plastic bottles, drums, jerry cans, and industrial containers without adding a second machine footprint. Combined with PLC/HMI control, servo energy-saving options, and support for HDPE, PE, PP, and PVC materials, it gives manufacturers, distributors, and OEM/ODM buyers a scalable way to grow production.If you are comparing single station and double station extrusion blow molding machine options, or need a quotation for your specific bottle size and output target, contact Ziqiang's sales team through the Contact us page for product details, technical specifications, and a formal quotation.