Long-Term PET Preform Injection Machine Supplier China

A PET preform injection machine is the core production asset behind PET bottles for mineral water, beverages, carbonated soft drinks (CSD), edible oil, and daily chemical packaging. For buyers at the decision and execution stage, sourcing from China is not a one-time purchase; it is a long-term supply relationship that includes molds, spare parts, documentation, quality control, and after-sales support across multiple orders. This guide explains how to evaluate a long-term PET preform injection machine supply partner in China, using Ningbo Yong Jiang machine co.,Ltd (Yongjiang) as a documented example.

Why long-term supplier selection differs from one-off machine buying

The initial machine price is only part of the total cost of ownership. Over a production lifecycle, the deciding factors are repeatable quality, spare-part availability, mold compatibility, energy consumption, and how quickly the supplier responds when a line stops. A long-term partner should be able to demonstrate documented production capacity, consistent quality control procedures, commercial flexibility on minimum order quantity, payment, and delivery, and after-sales service that matches the buyer's operating hours. This guide treats supplier capability and commercial terms as equally important as machine specifications.

Industry background: PET preform injection in 2026

PET preforms are the intermediate product between PET resin and finished bottles: an injection molding machine melts PET resin and molds it into preforms, which are later reheated and blow-molded into bottles. Injection molding technology holds a dominant 66.4% share of the total PET preform machine market as of 2025, according to Future Market Insights (FMI). FMI also estimates the global PET preform machines market at USD 9.9 billion in 2025, projected to reach USD 17.3 billion by 2035. Asia Pacific is the largest regional market for injection molding machines, holding a 41.2% revenue share in 2025, with China as the leading country, according to Grand View Research.

At the high-output end, Husky Technologies is estimated to control 55–60% of the global high-output PET preform system market (Industry Analysis Report, 2024). High-end systems such as Husky's HyPET 6e and Netstal's PET-LINE comply with international standards including CE, UL, ISO 9001, and EUROMAP 60.1 (Technical Comparison 2024). Buyers should also note that market size estimates vary depending on whether the scope covers full production lines or machinery only, so figures should be compared on a like-for-like basis.

Ningbo Yong Jiang machine co.,Ltd (Yongjiang) as a long-term supply partner

Ningbo Yong Jiang machine co.,Ltd (Yongjiang) is a Chinese injection molding machine manufacturer founded in 1985, based at Jiangbei 88 avenue, Ningbo City, Zhejiang Province, China. The company operates a 130,000 m² factory with 200 employees, produces 2,000 units per year, and maintains an R&D team of 25 engineers. According to company data, 59% of production is exported, with main markets in the USA, Canada, and Thailand, and additional export to Southeast Asia, Russia, Africa, and South America for food packaging, daily chemical, and plastic goods factories.

Yongjiang's product line covers servo energy-saving, high-speed precision, two-color, and the exclusive YJPT PET preform series, with clamping force ranging from 40T to 1600T. For PET preform buyers, the YJPT series is the relevant family. Company-published specifications state that the YJPT series supports mold configurations from 6 to 72 cavities, with high output and energy-saving servo systems. This range includes the 32-, 48-, and 72-cavity hot runner mold configurations commonly used in water and beverage preform production.

YJPT series model specifications

Yongjiang offers four PET preform injection molding machine models in the YJPT family, all configured as high-speed PET preform machines. The following specifications are published by the manufacturer.

All four models are configured for PET preform manufacturing. Per manufacturer specifications, YJPT-260, YJPT-360, and YJHB-400 use QT500-A7 steel, and YJPT-318 uses steel.

How the YJPT series is configured for PET preform production

Compared with other PET preform injection machines, the YJPT series uses a configuration optimized for PET preforms, according to Yongjiang. The exclusive PET special screw is designed for uniform plasticization and high preform transparency. The fast dual-servo system realizes multi-axis linkage, which shortens molding cycles and cuts power use by up to 50%. Reinforced clamping and larger ejection travel are designed to fit multi-cavity deep molds, and ultra-precise temperature control is configured to reduce defective products. The rigid clamping frame adapts to multi-cavity hot runner molds for 24-hour continuous mass production, and all units support 380/400V 50Hz global industrial power. On the safety side, machines use temperature sensors and thermal protection to control overheating risk.

Supply terms that support repeat orders

For a long-term relationship, the supplier's published terms matter as much as the machine. Yongjiang's minimum order quantity is 1 unit. Typical production lead time is 30–45 days, and monthly production capacity is 200 units. Quality control includes 100% testing one week before shipment, with a pre-shipment test as the acceptance procedure. After-sales service includes 24/7 support. Commercial terms are 30/70 payment and FOB Ningbo delivery.

Step by step: qualifying a PET preform injection machine supplier in China

Use the following six steps to move from machine inquiry to long-term supply agreement.

1. Define your preform production scope. Determine the finished bottle application — mineral water, juice, carbonated soft drinks, edible oil, or packaging — because it decides preform weight, neck finish, and cavity count. Confirm whether your mold is in the 6-to-72-cavity range and whether it is a hot runner mold for continuous production.
2. Filter machines by shot weight and tie bar spacing. Match the model to the mold: YJPT-260 offers 1,400 g shot weight and 580×580 mm tie bar spacing; YJPT-318 offers 1,900 g and 620×620 mm; YJPT-360 offers 3,450 g and 680×680 mm; YJHB-400 offers 3,450 g and 720×720 mm.
3. Verify supplier credibility. Request factory details, R&D headcount, annual output, and export references. Yongjiang's profile: founded in 1985, 130,000 m² factory, 200 employees, 2,000 units per year, 25 R&D engineers, 59% export ratio, and main markets in the USA, Canada, and Thailand.
4. Confirm commercial terms. Minimum order quantity of 1 unit, 30/70 payment terms, FOB Ningbo delivery, and a 30–45 day production lead time.
5. Lock quality control. Quality control includes 100% testing one week before shipment, and the acceptance procedure includes a pre-shipment test.
6. Plan after-sales support. Confirm 24/7 support before the purchase order is issued, and define the spare-parts response process for continuous production lines.

Use cases: PET preform injection machines for water, beverage, CSD, oil, and packaging

According to Yongjiang's application data, the YJPT series is positioned for six buyer profiles:

• Drinking water and beverage factories producing mineral water, juice, and carbonated drink bottles.
• Edible oil, condiment, and food packaging plants making food-grade plastic containers.
• Cosmetic and daily chemical factories manufacturing plastic bottle preforms for skincare and shampoo.
• Independent preform factories that mass-supply preforms to blow molding workshops.
• Large integrated injection-blow molding enterprises with 24-hour continuous automated production lines.
• Medium and small packaging manufacturers in Southeast Asia, Russia, Africa, and South America pursuing cost-effective, stable equipment.

Cost and efficiency comparison: YJPT series vs. other PET preform injection machines

The summary below is based on Yongjiang's published comparison data. It describes how the YJPT series is configured relative to other PET preform injection machines.

Yongjiang does not position the YJPT series as a direct equivalent of high-output Western systems. According to the company's comparison data, the series balances stable heavy-load operation, long service life, and competitive cost, and is designed for the segment between expensive imported machines and low-cost, unstable alternatives. It also adapts to global industrial power grids.

Frequently asked questions

Conclusion

A long-term PET preform injection machine supply partner in China should be evaluated on four things: factory-backed production data, machine configuration matched to PET preform molds, transparent commercial terms, and after-sales response. Ningbo Yong Jiang machine co.,Ltd matches these criteria with a 130,000 m² factory, the YJPT series for PET preform manufacturing, a minimum order quantity of 1 unit, 30–45 day production lead times, 100% pre-shipment testing, and 24/7 support. Buyers at the decision or execution stage should request a quotation with their bottle application and cavity count, and use the pre-shipment test to verify machine performance before payment.

Request a quotation or sample specification

Contact Yongjiang directly for PET preform injection machine pricing, lead time, and mold configuration support.

• Sales contact: Steven
• Email: yongjiangimm@gmail.com
• Tel / WhatsApp: +86 18958305290
• Website: www.yongjiangimm.com
• Address: Jiangbei 88 avenue, Ningbo City, Zhejiang Province, China
• Brochure: Download the Yongjiang PET preform injection machine brochure (PDF)