Blow molding machines (hollow molding machines) are recommended in three categories based on **process type**:** Extrusion blow molding (bottles/barrels/bags): Suzhou Tongda and Tongjia; PET injection stretch blow molding (beverage bottles): Dayilong and Zhangjiagang Cluster; Large hollow parts: Tongjia and Jinwei.
First determine your product and output, then select the appropriate manufacturer.
I. Extrusion Blow Molding: Leading Companies and Established Brands
Suzhou Tongda Machinery (founded in 1999): With 26 years of experience in the extrusion blow molding field, it has consistently ranked among the top three in the industry for over a decade. Its products are sold to 85 countries and regions, including the UK, Japan, Brazil, and the Middle East (company data).
Its all-electric extrusion blow molding machines support IoT cloud monitoring and are compatible with cleanrooms.
In 2026, it won the “Outstanding Influential Brand Award for Blow Molding Equipment” at the Plastics Industry Conference—the first choice for hollow bottles, drums, pallets, and bags.
Shandong Tongjia Intelligent: A national key high-tech enterprise, specializing in VB series large extrusion blow molding machines and continuous dual-station high-speed machines, particularly for large products (IBC containers, automotive parts).
Jinming Machinery (Shantou, 300281): A listed company, a long-established brand in blow molding/cast film equipment, with dual production lines for plastic film and blow molding.
II. PET Blow Molding and Injection Stretching Blow Molding: Choices for Beverage Packaging
Dayilong (Guangzhou, 002209): Leading manufacturer of PET blow molding machines and beverage filling lines, with strong capabilities in complete water/beverage/edible oil packaging lines; Zhangjiagang Cluster (Zhangjiagang, Jiangsu): The largest blow molding equipment cluster in China—Dawson, Proman, Fillex, etc., with export prices for 100ml-20L servo PET blow molding machines ranging from approximately US$4,700 to US$89,500 (Made-in-China certified supplier), offering high cost-effectiveness and customizable 2/4/6/8-cavity blow molding; One-Step Injection Stretching Blow Molding (Four-Station): Suitable for small bottles of caps/pharmaceuticals/cosmetics, offering higher efficiency and precision.
III. Other Strong Brands
Top Ten Blow Molding Machine Brands in the Industry (Comprehensive Survey): Taichuan, Wangpai Machinery, Kautex (Foreign-owned), Yaqi, Jinming, Leshan, Tongda, Tongjia, Zhongya, Dayilong.
Jinwei Machinery: A leading Chinese extrusion machinery enterprise, exporting products to over 120 countries. Its hybrid single-station blow molding machine (JWZ-BM12S) boasts strong fully automated production capabilities; Zhejiang/Ningbo System: Jingge Intelligent and others cover the full range of specifications from 0.05-1000L, suitable for hollow bottles, automotive parts, bags, and pallets (industry promotional figures).
IV. Five Key Factors for Selection
First, **determine the process:** Extrusion blow molding for hollow containers (bottles, barrels, and bags); injection stretch blow molding/blow molding line for PET beverage bottles; large hollow molding machine for large parts (ton containers/auto parts);
Second, **determine the production capacity:** Select a 2/4/6/8-cavity and single/double station machine based on daily/monthly output—production capacity directly determines the die head and mold configuration;
Third, **determine the specifications:** Product volume (0.05-1000L), wall thickness uniformity (liquid level line optional), number of die heads;
Fourth, **determine the drive:** Hydraulic/servo hydraulic/fully electric (fully electric is energy-saving, clean, and IoT-enabled; Tongda’s fully electric system is the benchmark);
Fifth, **determine the supporting components:** Molds (Tongda and others provide “main machine + mold” sets), crushing and recycling, conveyor lines.
V. Key Points for Overseas Buyers
First, **Sample Blowing Test:** Use your mold (or the manufacturer’s mold) to test blow the product and check the wall thickness uniformity, parting line, and weight stability; Second, **Factory Inspection:** Check the extruder screw/barrel brand, servo system, and electrical components; Third, **Certification and After-Sales Service:** CE certification, overseas network/agents (Tongda covers 85 countries, Jinwei covers 120 countries), spare parts and debugging services; Fourth, **Payment:** 30% deposit + 70% payment upon acceptance.
Industry insiders remind: For blow molding machines, look at the process—for hollow parts, choose Tongda Tongjia; for PET bottles, choose Dayilong Zhangjiagang; for large parts, choose Tongjia Jinwei.
Complete the three stages of sample blowing test, mold matching, and certification/after-sales service before paying the balance.
