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— epp secondary foaming by ChinaEps, CE & ISO 9001 certified.
Key Specifications
Technical Specifications
| Parameter | Value |
|---|---|
| Model | SPEPP-2F EPP Secondary Foaming Machine |
| Target Material | EPP (Expanded Polypropylene) beads |
| Barrel Diameter | 1,400 mm |
| Batch Capacity | 500-700 kg/h |
| Density Range | 15-90 kg/m³ (EPP-grade) |
| Steam Pressure | 0.5-0.8 MPa (higher than EPS pre-expander) |
| Steam Consumption | 120-150 kg per batch |
| Cycle Time | 6-10 minutes per batch |
| Voltage | 380V / 50Hz |
| Installed Power | 38 kW |
| Machine Weight | 7,500 kg |
| Dimensions (L×W×H) | 3,200 × 2,600 × 5,200 mm |
| Control System | Siemens PLC + Weintek HMI with EPP-specific recipe library |
* Specifications are subject to change without notice. Contact us for the latest technical data.
What This Machine Solves
Three production problems eliminated by this machine — with engineered, measurable solutions.
Automotive EPP bumper-system production requires steam pressures (0.5-0.8 MPa) that standard EPS pre-expanders cannot deliver — using EPS machines damages EPP material
SPEPP-2F is purpose-built for EPP with higher-pressure barrel (0.5-0.8 MPa rated) and reinforced agitator for EPP's higher-viscosity expansion behavior.
EPP density windows (15-90 kg/m³) are 3× wider than EPS — generic pre-expanders cannot hold the precision automotive Tier-1 customers demand
SPEPP-2F has EPP-specific recipe library on the HMI — pre-engineered parameter sets for automotive bumper grades (35-50 kg/m³), sporting-goods grades (50-70), and packaging grades (15-30).
EPP cycle times (6-10 min) are longer than EPS — operators waste shift time waiting for batch completion
SPEPP-2F's 38 kW heating + closed-loop steam control minimizes cycle time within EPP's physical constraints — 6-7 minutes typical vs 8-12 on retrofitted EPS machines.
Working Principle
SPEPP-2F is a secondary foaming machine — EPP beads have already been primary-foamed by raw material supplier; SPEPP-2F performs the secondary expansion that gives EPP its final density. Higher steam pressure than EPS (0.5-0.8 MPa) is what enables EPP's elevated thermal requirements.
1. EPP Bead Loading
Primary-foamed EPP beads loaded via electronic weighing batch loader.
2. High-Pressure Steam Pre-heat
Barrel pre-heated by saturated steam at 0.5-0.8 MPa working pressure (vs 0.18-0.25 on EPS).
3. Secondary Expansion
Steam injected for 4-6 minutes; beads expand to final EPP density (15-90 kg/m³ range).
4. Cooling & Stabilization
Vacuum + water-spray cooling stabilizes bead structure before discharge.
5. Pneumatic Discharge
Expanded EPP beads conveyed to aging silo for 24-72h moisture/pressure stabilization.
Engineered Performance Advantages
Every advantage backed by measurable specs — no marketing claims without data.
3-4× higher pressure capability for EPP's elevated requirements.
3× wider density range covers automotive, sporting, and packaging EPP grades.
Automotive bumper, sporting goods, packaging recipes pre-stored on HMI.
Higher heating capacity minimizes cycle time within EPP physical constraints.
Steam pressure + recipe precision meets automotive Tier-1 supplier requirements.
Real Production Applications
See where this machine fits in real factories.
Product FAQ
The questions buyers ask most often before placing an order.
Why can't I use my existing EPS pre-expander for EPP?
Does SPEPP-2F also work for EPS?
What automotive certifications does SPEPP-2F support?
Steam boiler requirement?
Ships to 220V/60Hz?
Build a Complete EPS Line
This machine integrates into the full ChinaEps production flow — upstream, downstream, and auxiliary equipment from one supplier.
Upstream — Bead Preparation
Downstream — Finishing & Packing
Why ChinaEps — Factory Strength
Full in-house manufacturing capability behind every machine we ship.
Certifications & Compliance
Service Commitment
Beyond shipping — we stand behind every machine we deliver.
5-Year Warranty
Core components warranted for 5 years; standard parts 12 months.
24h Remote Response
Technical engineers respond within 24 hours via WhatsApp / email / video call.
Global On-Site Service
Our technicians travel worldwide for installation, commissioning, and repair.
Operator Training
Hands-on training plus full technical documentation in your language.
ROI Snapshot
Quick reference numbers — for a precise quote with your factory data, use the ROI Calculator.
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