250L HDPE Chemical Drum
250L Open-Top HDPE Chemical Drum Blow Moulding Machine Overview
The Barrel 250L Open Top Chemical Drum Blow Moulding Machine HDPE Plastic Materials Automatic Extrusion Blow Molding Machine is a purpose-built extrusion blow moulding solution from Suzhou Tongda Machinery Co., Ltd., designed for industrial-scale production of 250-litre open-top HDPE chemical drums. When evaluating equipment for this application, the critical engineering question is whether the machine maintains consistent wall thickness across the full drum circumference at sustained production rates — not what a rated capacity range states on paper.
Tongda's platform handles large hollow plastic containers from 10L to 3,000L. At 250L, structural demands are significant: parison weight is higher, mould cooling requirements are more complex, and wall thickness uniformity at critical stress points — the drum rim and base — is stricter than for smaller containers. The hydraulic servo clamping and extrusion mechanisms address these requirements. Over 4,000 units are deployed in chemical packaging, food containers, agricultural inputs, automotive parts, and logistics across more than 100 countries.
Technical Specifications
Compatible materials: HDPE, PE, and PP. HDPE is the standard material for chemical drum production; PE and PP extend the platform to food-grade containers and agricultural packaging without additional equipment investment.
| Specification | Details |
|---|---|
| Product Range | 10L – 3,000L hollow plastic containers |
| Target Application | 250L open-top chemical drum |
| Compatible Materials | HDPE, PE, PP |
| Drive System | Hydraulic servo (energy-saving) |
| Energy Savings | 10%–25% vs. conventional models |
| Certifications | CE, ISO 9001, TUV, SGS |
| Global Installed Base | 4,000+ units in 100+ countries |
| Custom Machine Lead Time | ~60 days after deposit |
The 10L–3,000L capacity describes the machine platform envelope. For a 250L drum line, mold dimensions, parison weight, and cooling cycle are configured to your specific drum design and production volume during the pre-order engineering phase. A stated capacity range is not the same as guaranteed output at every container size — experienced buyers verify this during supplier qualification.
Key Features
Hydraulic Servo Drive — Energy Efficiency in Production
The servo-hydraulic drive operates at variable output rather than fixed speed. This is the mechanism behind the 10%–25% energy savings vs. conventional hydraulic machines. Savings are most pronounced during mould clamping idle and pressure-hold phases in multi-shift operations. Over a machine's operational lifespan, this becomes a significant total cost of ownership factor that upfront purchase comparisons cannot capture. Buyers tracking per-unit energy costs across multiple procurement cycles consistently reweight their criteria from initial price to long-term cost per unit produced.
Automatic Extrusion — Consistent Parison Control
Automatic extrusion provides mechanically controlled parison formation — where molten polymer is extruded before mould inflation. For a 250L drum, parison sag must be actively managed to maintain wall thickness from top to bottom of the drum body. Automatic control reduces operator-dependent variability at this stage. Engineers familiar with new machine commissioning know that initial parameter adjustments are a standard calibration process; stable output typically follows within two to four weeks of commissioning a new mould and machine together.
Turnkey Project Capability — Installation to Commissioning
Tongda provides turnkey project support: plant layout consulting, machine and mould installation, commissioning, operator training, and auxiliary equipment sourcing. For overseas buyers managing a production line installation remotely, this integrated service reduces project risk. All necessary spare parts ship with the machine. After delivery, 24-hour online technical support, video-based guidance, and on-site engineer assistance address commissioning questions and operational issues.
Application Scenarios
Chemical and Petrochemical Storage
The primary application is 250L open-top HDPE chemical drums for chemical and petrochemical storage. HDPE's broad chemical resistance combined with extrusion blow moulding's seamless construction — no welded joints that could develop stress fractures under chemical exposure — makes this well-suited to hazardous liquid containment. Buyers should verify chemical compatibility against the HDPE grade and wall thickness specification for their target chemicals.
Industrial Packaging — Food, Agricultural, and Logistics
The same platform supports food-grade container production in PE, agricultural input packaging in PP, and multiple sizes from 10L to 3,000L from a single equipment investment. This versatility has been validated across Tongda's global customer base in food, agricultural, outdoor equipment, automotive, and logistics packaging segments. Contract manufacturers serving multiple end-use industries benefit from equipment that spans material types and container sizes.
Manufacturer Background
Suzhou Tongda Machinery Co., Ltd., founded in 1999, has ranked among the top three enterprises in China's extrusion blow moulding equipment industry for 15 consecutive years. As Vice President Unit of the China Plastics Machinery Industry Association, the company's standing is institutionally recognized. The Barrel 250L Open Top Chemical Drum Blow Moulding Machine HDPE Plastic Materials Automatic Extrusion Blow Molding Machine represents 27 years of specialized expertise in large hollow plastic product manufacturing. CE, ISO 9001, TUV, and SGS certifications meet supplier qualification requirements across European and international procurement processes.
Frequently Asked Questions
How do I get a price for this machine?
Provide target drum dimensions, annual production volume, and product drawings if available. Tongda's team will configure the appropriate model and provide a quotation matched to your requirements.
Are spare parts included at delivery?
Yes. All necessary spare parts ship with the machine. Request the packing list to confirm coverage for your critical wear components.
What is the delivery lead time?
Approximately 60 days after deposit for customized machines. Stock machines may ship faster. Confirm current availability with the Tongda sales team.
What after-sale service is provided?
Operating manual and engineer training before loading; after delivery: 24-hour online support, video technical guidance, and on-site field engineer installation assistance.
How can buyers evaluate the Barrel 250L Open Top Chemical Drum Blow Moulding Machine HDPE Plastic Materials Automatic Extrusion Blow Molding Machine before ordering?
Request a pre-shipment factory trial run with your mould to confirm production parameters. Video tours and virtual demonstrations are available for remote pre-purchase evaluation. Contact Tongda at tongdablowmoulding.com or via their Alibaba storefront to initiate a technical consultation.
