Solutions · Styrenic Plastics Storage
Polystyrene, ABS, and EPS raw beads are processed into packaging, housings, and insulation – in many grades and colors. PW Silo Systems designs aluminum and stainless steel silos for styrenic plastics, with clear product separation, blending silos, and safety equipment planned for your product.
Styrenic Plastics Storage at a Glance
A polystyrene silo stores PS, ABS, or blend pellets – or EPS raw beads – between delivery, compounding, and processing. It protects the material from contamination and feeds it reliably to molding, extrusion, or pre-expansion.
Styrenic plastics come in many grades and colors, some grades are dried before processing, and EPS raw beads contain a blowing agent. PW Silo Systems plans storage, separation, and safety equipment around your product.
Why Styrenic Plastics Are Demanding
Grades, moisture, and safety decide how a silo system for styrenic plastics is built.
EPS raw beads contain a blowing agent, which places specific requirements on storage.
Some grades such as ABS are dried before processing.
Different polystyrene grades and colors must not be mixed by accident.
PP/PS, PP/ABS, and ASA/PBT blends must keep their composition.
In coated carbon steel silos, flaking paint and rust particles can end up in the polystyrene.
Polymer production and compounding need large storage capacities – often more than a road-transportable silo can hold.
Silo Materials
We build silos exclusively in aluminum and stainless steel. Both materials offer high corrosion resistance and a long service life – without a coating as the only protection against corrosion.
Which of our two materials fits your polystyrene silo depends on your product, your process, and your site. We review it with you.
Your Polystyrene Silo System
Storage silos, panel silos, blending silos, process silos, filtration, and safety equipment are engineered as one system. That means fewer interfaces for your team.
Storage
Concentric mass-flow discharge without asymmetric flow zones – as standard, site-assembled, indoor, or multi-compartment silos.
Learn moreLarge Volumes
Seal-welded panel silos up to 53,000 ft³ for petrochemicals, plastics, and recycling.
Learn moreBlending
Blending and homogenizing of polymer pellets with PW PipeBlend and PW CentralPipeBlend.
Learn moreProcess
Process silos for deodorizing, degassing, and drying.
Learn moreFiltration
Dust separation during filling and conveying.
Learn moreSafety & Monitoring
Rupture discs or explosion vents for combustible dust, level measurement for reliable monitoring of the silo content.
Learn moreStyrenic Plastics
Products marked “Tested in our lab” are on our list of bulk materials. The others we review with you based on your material data before designing the silo.
Tested in our lab
Polystyrene pellets (PS), GPPS, HIPS
Polystyrene pellets are on our list of bulk materials tested in our lab.
Tested in our lab
ABS pellets, ABS granules
ABS pellets are on our tested list. Drying requirements are reviewed with you.
Tested in our lab
EPS raw beads, expandable polystyrene
EPS raw beads are on our tested list. Ventilation and explosion protection are reviewed with you.
Tested in our lab
PP/PS pellets
PP/PS pellets are on our tested list.
Tested in our lab
PP/ABS pellets
PP/ABS pellets are on our tested list.
Tested in our lab
ASA/PBT pellets
ASA/PBT pellets are on our tested list.
Review with us
SAN pellets, styrene acrylonitrile
SAN pellets we review with you based on your material data.
Also tested in our lab:
Send us your material data and we will review the right solution with you:
Material Check
Type in your polymer or any other bulk material to see whether it has already been tested in our lab. The list covers 287 bulk materials.
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Service in the U.S.
With more than 40 years of experience in silo engineering, we support your polystyrene silo project from the first design discussion to commissioning. We deliver to every U.S. state and install with our own qualified personnel.
FAQ
Answers to the questions plant managers, engineers, and buyers ask most often about storing polystyrene, ABS, and EPS in silos.
These products are on our list of bulk materials tested in our lab:
SAN, PC/ABS, and recycled PS we review with you based on your material data.
EPS raw beads contain a blowing agent. Ventilation and explosion protection requirements are reviewed with you for your product and your application. Where required, we supply explosion-protected silos designed in accordance with applicable codes and regulations, with rupture discs or explosion vents.
PW ProcessLine process silos are designed for deodorizing, degassing, and drying. We review your process requirements with you.
PW BlendLine silos blend and homogenize polymer pellets – with PW PipeBlend or PW CentralPipeBlend, depending on your product and throughput.
Seal-welded PW PanelLine silos reach capacities of up to 53,000 ft³. Their prefabricated components travel in standard containers or on curtain-side trucks – no oversize transport permits – and are assembled on site.
Both are possible. Which material fits your polystyrene silo depends on your product, your process, and your site. We review the options with you.
Yes. We deliver to every U.S. state and support your project with silo transport, field assembly, silo installation and supervision, and site relocation of existing systems.
Very likely. Our silo systems are designed for nearly all free-flowing, granular, and powdered bulk solids. Send us your material details – kernel size, moisture, and how the product is filled and discharged – and we will review the right storage solution with you.
Tell us about your polystyrene grades, required storage capacity, how the silo is filled and discharged, and your site conditions. Based on this, we work out the material, silo type, and configuration with you and send you a detailed quote.
Your Project
Whether you need a single polystyrene silo, a large panel silo, or a complete system with blending and process silos, tell us about your requirements. We'll develop a solution that fits your product, your process, and your site.
Send a Request NowWhat Happens Next
Tell us about your bulk material, your process, and your site conditions.
We work with you on material, silo type, and configuration – based on a bulk material analysis if needed.
You receive a custom-engineered solution with a detailed quote.
