Dongshan to showcase automated pre-expander machines at SECC Vietnam

Hangzhou Fuyang Dongshan Plastic Machinery Co., Ltd. will demo its pre-expander lineup at the upcoming SECC Vietnam event, highlighting automation, density control and energy-saving features for EPS and EPP foam production. The showcase points to growing demand for smarter foam-processing equipment across packaging, insulation and cold-chain applications.

Why it matters: - Foam manufacturers are under pressure to improve energy efficiency, control bead density and automate production. - Pre-expansion is a key step in EPS foam processing because uniform bead expansion affects downstream molding quality, waste levels and process control. - Dongshan is using SECC Vietnam to position pre-expander machinery as part of an integrated production line, not just a standalone machine.

What happened: - Hangzhou Fuyang Dongshan Plastic Machinery Co., Ltd. plans to unveil automated pre-expansion solutions at the upcoming SECC Vietnam event. - The company is based in Hangzhou, Zhejiang, and has nearly 20 years of experience in EPS and EPP foam machinery. - Dongshan says its equipment is exported to more than 50 countries, including Russia, India, Vietnam and Brazil. - More information is available on the company’s announcement.

The details: - Dongshan’s product range includes Auto Block Moulding machines, Auto Pre-Expander machines, Auto Shape Moulding machines, cutting machines, recycling machines and auxiliary equipment. - The company has held CE certification and ISO 9001 certification since 2007. - Dongshan has been recognized as a high-tech enterprise and received a Level A of honesty and trustworthiness honor. - The company holds more than 48 utility model patents and 6 invention patents. - Dongshan says its pre-expander machines automate steam, air, drying and density management. - Product pages list high-precision automatic batch pre-expanders, continuous pre-expanders, vacuum pre-expanders and advanced automatic models for large-scale production. - The EPS Automatic Batch Pre Expander 1400 is listed with a DN1400 expansion chamber, or DN1660 for a larger version. - The same model is listed with 2.1 m³ usable volume for DN1400 and 4.8 m³ usable volume for DN1660. - The machine’s steam inlet is listed at 2 inches, or DN50. - Steam consumption is listed at 8-10 kg per cycle for the 2.1 m³ version and 11-14 kg per cycle for the 4.8 m³ version. - The density tolerance is listed at ±3%. - The machine uses PLC and human-touch control and supports quick process switching. - Another model, the EPS Pre Expander Advanced Automatic Type for Precise Expansion, is listed in the X-MAX1100B, X-MAX1400B and X-MAX1670B series. - Those models are listed with effective volumes from 1 m³ to 3.5 m³, pressures of 0.5-0.8 MPa and density tolerances from ±1% to ±1.5%. - Automatic weighing systems and optional customization are listed as features. - Common features across the lineup include adjustable steam pressure, automatic filling systems, user-friendly interfaces, PLC control and energy-saving designs. - The machines are designed for EPS sheets, foam blocks, packaging inserts and insulation parts.

Between the lines: - Dongshan is betting that buyers now want equipment that improves both process quality and plant economics. - The focus on automation, monitoring and customization reflects a broader shift in foam manufacturing toward smarter, more connected production systems. - Export experience and service support are part of the sales pitch because industrial buyers often weigh long-term maintenance and logistics as heavily as machine specs.

What’s next: - Dongshan’s live demonstration at SECC Vietnam is expected to show bead feeding, steam expansion, drying and conveying in real time. - The company is also expected to highlight parameter selection, density monitoring, cycle efficiency and modular options such as batch or continuous systems. - Dongshan will use the event to emphasize its global service network and readiness for international customers.

The bottom line: - Dongshan is presenting pre-expansion equipment as a critical part of modern foam production, with automation and efficiency now central to buying decisions.