Hangzhou Epsole Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of auto batch eps foam pre-expander in China. We warmly welcome you to buy high quality auto batch eps foam pre-expander for sale here from our factory. Good service and reasonable price are available.
EPS Batch Pre-Expander with ±1% Density Control per Batch
Built for EPS raw material producers and high-end packaging plants. Every batch is weighed by imported high-sensitivity load cells and expanded in a fully enclosed stainless steel chamber - so bead density stays uniform and your molded parts keep the compressive strength you specify.
Key Selling Points
Density tolerance within ±1% per batch
01
Imported high-sensitivity load cells weigh every batch
02
Fully enclosed expansion chamber for even steam distribution
03
Corrosion-resistant stainless steel inner chamber - no rust, no contamination
04
PLC + HMI recipe memory for one-touch density changeover
05
Pain Point
Sound Familiar?
Batch-to-batch density drift forces constant molding adjustments
01
Light spots in molded parts fail compression and drop tests
02
Over-weighting to secure strength drives up raw material cost
03
Results depend on the operator - quality varies shift to shift
04
|
Item |
ESPB-50 |
ESPB-110 |
ESPB-150 |
ESPB-160 |
|
Chamber diameter |
500 mm |
1100 mm |
1500 mm |
1600 mm |
|
Usable volume |
0.1 m³ |
0.9 m³ |
3.2 m³ |
4.5 m³ |
|
Output (kg/h) |
80–280 (12–50 g/L) |
240–600 (12–30 g/L) |
600–1500 (12–30 g/L) |
1400–2800 (12–25 g/L) |
|
Density tolerance |
±1% |
±1% |
±1% |
±1% |
|
Steam / cycle |
0.5–0.7 kg |
8–11 kg |
15–18 kg |
18–20 kg |
|
Steam pressure |
0.6–0.8 MPa |
0.6–0.8 MPa |
0.6–0.8 MPa |
0.6–0.8 MPa |
|
Air / cycle |
0.2–0.3 m³ |
0.5–0.6 m³ |
0.5–0.6 m³ |
0.5–0.8 m³ |
|
Power |
9.5 kW |
16.1 kW |
24.85 kW |
3.5 kW |
|
Dimensions (mm) |
3000×3800×3800 |
5600×300×4530 |
6500×4150×5400 |
8600×3500×5800 |
|
Weight |
1500 kg |
3500 kg |
5000 kg |
8000 kg |
|
Room height |
5000 mm |
5000 mm |
6000 mm |
7000 mm |
How It Works
Automatic feeding: Raw beads are conveyed into the weighing hopper.
Load-cell weighing: Imported high-sensitivity load cells measure in real time; the PLC closes the feed the moment the set weight is reached.
Enclosed expansion: Beads enter the sealed stainless steel chamber; steam pressure and temperature follow the stored recipe while the agitator ensures even heating.
Level end-point control: A photoelectric level sensor stops steam at the target volume, so every batch ends at the same point.
Discharge & fluid-bed drying: Expanded beads are discharged to the fluid-bed dryer, then conveyed to the aging silo.
Recipes & traceability: The PLC stores recipes for each density - one-touch changeover and traceable batch parameters.
why choose us
Quality Assurance
ISO 9001:2015 certified CE certified – compliant with EU Machinery Directive
Fast Logistics
Factory located in Hangzhou, just 2 hours from Shanghai Port
After-Sales Support
On-site installation & commissioning Operation & maintenance training
Flexible Payment
TT, L/C at sight. Trade terms: EXW, FOB Shanghai, CIF.
FAQ
What density tolerance can your batch pre-expander achieve?
Batch or continuous pre-expander - which should I choose?
What steam and air supply is required?
Can it process graphite EPS and other grades?
What about delivery, installation and warranty?
What information do you need for a quote?
Hot Tags: auto batch eps foam pre-expander, China, manufacturers, suppliers, factory, price, vacuum, for sale, Continuous Pre expander Expandable Polystyrene Foam Machine, Steam Storage Tank, styrofoam pre expander, Polystyrene Expanding Machine Eps Pre expander, EPS Expandable Polystyrene Pre expander Machine, Pre Expanding Polystyren Machine