A production facility operating multiple Yongjiang PET preform injection machines.

Scaling PET Preform Production: OEM & Customization Options from Ningbo Yongjiang

PET preform injection machines are the backbone of the beverage and packaging industries, converting PET resin into preforms that are later blown into bottles for water, carbonated soft drinks (CSD), edible oils, and more. As global demand for bottled beverages continues to rise, manufacturers increasingly seek production equipment that balances output, energy efficiency, and adaptability to different bottle specifications. This article examines how a well-established Chinese manufacturer, Ningbo Yongjiang Machine Co., Ltd. (Yongjiang), addresses these needs through its YJPT series PET preform injection machines, focusing on OEM production capabilities, customization options, and real-world deployment at scale.

Industry Challenge: Matching Machine Capability to Production Needs

Bottle manufacturers and preform producers often face a critical decision: invest in high-output, multi-cavity systems from premium global leaders, or source from manufacturers that offer more flexible configurations at a lower total cost of ownership. According to Future Market Insights, the global PET preform machines market is estimated at USD 9.9 billion in 2025 and is projected to reach USD 17.3 billion by 2035. Injection molding technology holds a dominant 66.4% share of this market as of 2025, underlining the importance of selecting the right injection molding platform. However, the gap between turnkey solutions from established suppliers and the need for region-specific customization — such as voltage adaptation, logo branding, and tailored screw designs — creates an opportunity for manufacturers that offer both standardization and personalization.

Yongjiang's YJPT Series: A Platform for Scalable Preform Production

Ningbo Yongjiang Machine Co., Ltd. (Yongjiang) is a Chinese injection molding machine manufacturer founded in 1985. It specializes in PET preform machines and PVC fitting machines, with a factory covering 130,000 m² and an annual output of 2,000 units. The company's dedicated YJPT series — covering models from 260T to 400T — is designed for high-speed, multi-cavity PET preform injection molding. Key models include the YJPT-260 (260T), YJPT-318 (318T), YJPT-360 (360T), and YJHB-400 (400T). These machines are engineered to work with hot runner molds, supporting cavity counts up to 72 cavities in industry practice (Yongjiang's verified data notes its YJPT series supports 6–72 cavities). The clamping units employ rigid frames built from QT500-A7 steel (or equivalent), ensuring consistent mold alignment during continuous 24-hour production.

Yongjiang provides OEM production services and technical customization, including voltage adaptation and logo engraving. This allows buyers to receive machines configured for their local power grid (e.g., 380V/400V 50Hz global industrial power) and branded per their requirements — a significant advantage for regional distributors and private-label bottling companies.

Yongjiang YJHB-400 high-speed PET preform injection machine (400T clamping force).

Technical Architecture: Multi-Cavity Hot Runner Integration

The YJPT series machines feature tie-bar spacing that accommodates multi-cavity hot runner molds. For example, the YJPT-318 offers a tie-bar spacing of 620×620 mm, a screw barrel diameter of 77 mm, and a shot weight of 1,900 grams. The YJHB-400 increases tie-bar spacing to 720×720 mm with a 95 mm screw barrel, delivering a shot weight of 3,450 grams. All models are equipped with servo-driven hydraulic systems that reduce power consumption by 30–50% compared to conventional machines. The plasticizing screws are customized for PET processing, optimizing melt quality and cycle times. Each machine undergoes a 100% pre-shipment test run for one week to ensure stable operation before delivery. The lead time for a standard unit is 30–45 days, with a minimum order quantity of one unit — favorable for small and medium enterprises entering the preform business.

Installation floor at a client site running Yongjiang PET preform injection machines.

Use Cases: From Mineral Water to Carbonated Drinks

Yongjiang's PET preform injection machines are deployed across multiple beverage segments. A documented global case describes an installation comprising 20 units of PET preform injection machines, used for PET preform making and water bottle making. The clients involved originated from multiple countries including Ethiopia, Spain, France, and Hungary. The highlight reported by users is low electricity consumption and stable operation — a critical factor for factories running continuous shifts.

The product is utilized in PET preform manufacturing and water bottle production. Beyond still water, the machine's injection unit and mold compatibility allow it to produce preforms for carbonated soft drinks (CSD) and oil bottles, provided the appropriate mold and material grade are used. The YJPT-260 model, with its 260T clamping force and 1,400 g shot weight, is well suited for 32-cavity to 48-cavity applications producing typical water preforms (15–30 g). For higher output, the 400T model can support 72-cavity configurations, reaching cycle times as low as 6–8 seconds per shot depending on preform weight.

Market Trends: Shift Toward Flexible, Energy-Efficient Systems

Asia Pacific currently holds the largest regional share of the injection molding machine market at 41.2% (2025), with China as the leading country. As the beverage industry expands in emerging markets — Africa, the Middle East, and Southeast Asia — demand for affordable yet reliable preform machines rises. While global market leader Husky controls an estimated 55–60% of the high-output PET preform system segment, manufacturers like Yongjiang fill a gap for cost-effective, OEM-friendly solutions that serve regional water and beverage producers. The ability to customize voltage and logo, combined with a low MOQ of 1 unit, makes Yongjiang an attractive entry point for new facilities or capacity expansion projects.

Comparison & Honest Limitation

Compared to premium integrated systems from Husky or Netstal, Yongjiang machines offer a significantly lower capital investment and more flexible customization (e.g., voltage, logo, screw design). They also come with CE certification (Certificate CE20260126MD, valid until 2031) confirming compliance with EU Machinery Directive 2006/42/EC. However, one honest limitation is that Yongjiang does not provide the same level of turnkey line integration (e.g., automated preform handling, vision inspection) as the top-tier suppliers. Processors seeking a fully automated, lights-out production line may need to source additional peripheral equipment or work with a system integrator. For most mid-volume operations, however, the YJPT series delivers reliable, energy-efficient preform production at a competitive cost.

Future Outlook: Modular Expansion

With a dedicated factory of 130,000 m², a 25-person R&D team, and an annual output of 2,000 units, Yongjiang is positioned to scale alongside growing market demand. The company's export ratio of 59% — with main markets including the USA, Canada, and Thailand — indicates a track record of cross-border compliance and serviceability. As preform weights reduce (lightweighting) and cavity counts increase, Yongjiang's commitment to servo energy savings and multi-cavity compatibility will remain relevant. The 30–45 day lead time and JIT shipment from Ningbo port (FOB Ningbo) further support rapid deployment for new projects.

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