The TDB-120A HDPE 50-100L Extrusion Blow Molding Machine Automatic High Safety Open-top Blue Plastic Barrel Making is purpose-built for industrial manufacturers that need consistent, high-volume output of open-top plastic barrels in the 50–100L range. Featuring fully automatic operation and an energy-saving hydraulic servo drive, it delivers 10% to 25% lower energy consumption versus conventional hydraulic blow molding equipment — a measurable advantage for factories running multiple shifts where electricity costs compound over time. CE, ISO 9001, TUV, and SGS certifications confirm compliance with international machinery safety and quality management standards. More than 4,000 units of Tongda's large hollow product machines are in active production worldwide, providing a verified track record across diverse manufacturing environments.

Automatic parison clamping and trimming reduce manual intervention at critical production stages, improving per-shift output stability and reducing operator-dependent quality variation. Higher automation lowers labor dependency — but it also raises the maintenance skill threshold. Tongda addresses this directly with pre-shipment engineer training, detailed operation manuals, and 24-hour post-delivery online support, making the configuration practical for buyers in markets where specialized blow molding technicians are not readily available locally.
The servo hydraulic drive adjusts output in real time to match actual cycle demand rather than running at constant load like a fixed-displacement pump. This design achieves 10% to 25% energy savings versus conventional fixed-displacement hydraulic machines. For factories running continuous production in high-electricity-cost regions, the annual savings on electricity can offset a meaningful portion of the total operating cost over the machine's service life. Buyers evaluating equipment on initial price alone often underestimate how much this gap compounds over years of operation.
Large-volume blow molding places substantially greater demands on structural rigidity, hydraulic system stability, and mold cooling capacity than small-container production. The TDB-120A's mechanical design is sized specifically for this output range. Producing 50–100L containers requires proper management of parison weight, die swell, and cooling time — areas where a machine designed for this volume range delivers more consistent results than an undersized machine pushed beyond its rated envelope.
Safety interlocks and guarding are built into the machine's standard configuration to meet industrial manufacturing safety requirements. CE certification confirms the design meets applicable European machinery safety and electromagnetic compatibility directives — a procurement prerequisite for buyers supplying multinational supply chains or operating in markets that mandate CE-compliant equipment. ISO 9001 certification documents the quality management system underlying production consistency.
While optimized for HDPE — the standard material for industrial barrels, chemical drums, and large hollow storage containers — the TDB-120A processes PE and PP as well. This flexibility allows manufacturers to produce containers with different chemical resistance and mechanical profiles on the same machine, provided processing parameters are adjusted appropriately per material specification.
| Parameter | Specification |
|---|---|
| Model | TDB-120A |
| Container Volume Range | 50–100 L |
| Container Type | Open-top barrel / industrial hollow container |
| Primary Material | HDPE (also PE, PP compatible) |
| Drive System | Energy-saving hydraulic servo |
| Operation Mode | Fully automatic |
| Energy Savings | 10%–25% vs. conventional hydraulic machines |
| Certifications | CE, ISO 9001, TUV, SGS |
| Lead Time (customized) | Approx. 60 days after deposit |
Specific parameters — clamping force, screw diameter, cycle time, and installed power — vary by configuration. Contact Tongda with your product dimensions, annual production volume, and wall thickness requirements for a detailed machine specification and quotation.
The primary application is manufacturing 50–100L HDPE open-top barrels for chemical storage, agricultural inputs, and industrial fluid packaging. HDPE's broad chemical resistance combined with blow molding's seamless wall construction suits the containment requirements of chemical logistics, agricultural distribution, and industrial packaging. The TDB-120A's capacity range aligns directly with the most widely specified drum and barrel sizes in these industries, reducing the need for secondary forming or assembly steps.
The machine's large-format capability supports production of automotive hollow components and industrial parts requiring structural consistency and dimensional precision. Applications in this segment typically demand tight wall-thickness uniformity — an area where the TDB-120A's servo hydraulic system contributes to cycle-to-cycle process stability.
Manufacturers producing a range of hollow plastic items — including luggage, furniture components, toys, and outdoor equipment alongside barrels — benefit from the machine's material flexibility and customization capability. Most units are built to customer-specific product requirements, enabling a single machine to support varied product lines without maintaining separate dedicated equipment for each container type.
Suzhou Tongda Machinery Co., Ltd., founded in 1999, has ranked among the top three extrusion blow molding equipment manufacturers in China for 15 consecutive years and serves as Vice President Unit of the China Plastics Machinery Industry Association. With over 27 years of operating history and equipment deployed across 100+ countries, Tongda provides turnkey project support: plant layout design, machine and mold installation, commissioning, and auxiliary equipment sourcing. Machines are factory-tested as complete sets before shipment, reducing on-site integration time for buyers managing complex new line installations.








Contact Tongda with your target product dimensions, shape, annual production volume, and a reference photo if available. The team will recommend the appropriate configuration and provide a formal quotation. Pricing varies because most machines — including the TDB-120A HDPE 50-100L Extrusion Blow Molding Machine Automatic High Safety Open-top Blue Plastic Barrel Making — are built to customer product specifications rather than as fully standardized catalog items.
Yes. All necessary spare parts are provided before shipment. Contact Tongda for the full spare parts packing list relevant to your specific configuration and model.
Tongda provides operation manuals and engineer training before machine loading. After shipment, support includes 24-hour online assistance, video-based technical guidance, and on-site installation and commissioning by experienced technicians at the customer's facility when required.
Customized machines typically require approximately 60 days after deposit. Stock machines can ship more quickly. Actual production cycle time depends on the degree of customization and current manufacturing scheduling.
Yes. Tongda offers full turnkey project support covering plant layout design, machine and mold installation, line commissioning, and sourcing of auxiliary equipment. The complete line is factory-tested before shipment to reduce on-site integration complexity and commissioning time for the buyer.