Polypropylene on Big-Bag to Silo Trailer Transloading — SMIALA Poland

Transloading without pneumatic conveying — gravity method

Sun, 03 May 2026 00:00:00 +0000

Definition

Transloading without pneumatic conveying is a method of moving bulk materials based on a gravity chute through a cleaning sieve, without the use of compressed air and without mechanical impacts, protecting the granulate from abrasion, electrostatic charging and contamination.

This is the method around which we built our terminal — and our most important competence. In a world where most operators pump granulate with compressed air because it is faster, we consciously chose the slower but gentler path for the material. For plastics producers, for whom granulate parameters are sacred, this is the difference that decides the choice of supplier.

Polymer recyclates (rPET, rHDPE, rPP): properties and PPWR

Fri, 10 Apr 2026 00:00:00 +0000

Definition

Polymer recyclate is a plastic derived from waste recovery, processed back into a form suitable for reprocessing instead of virgin raw material. In commercial and transport circulation it occurs most often as regranulate — a pellet obtained by washing, melting and granulation, technologically close to granulate from the first polymerisation. The three most important types are rPET (from beverage bottles), rHDPE (from rigid packaging) and rPP — the fastest-growing polyolefin recyclate in Europe.

Food Contact Materials 1935/2004 — food grade granulate

Mon, 26 Jan 2026 00:00:00 +0000

Definition

Food contact materials (FCM) are materials and articles intended to come into contact with food, subject to the framework Regulation (EC) 1935/2004 and, in the case of plastics, additionally to the specific Regulation (EU) 10/2011. Food grade polymer granulate — so-called food grade — is an intermediate product that must be accompanied by a Declaration of Conformity (DoC) at every stage of the supply chain.

In terminal practice we deal with this topic constantly, because an ever-larger share of the granulate we transload — mainly PET , polyethylene and polypropylene — is intended for the production of food packaging: bottles, films, containers, closures. The terminal itself does not issue the Declaration of Conformity and is not responsible for the chemical composition of the plastic. It is responsible for something equally important: ensuring that material that entered the yard as food grade leaves it with its status intact — without contamination, with traceability preserved and a clean tank. That is precisely our role within the whole system.

Silo tanker transport of bulk materials — how it works

Sun, 18 Jan 2026 00:00:00 +0000

Definition

Silo tanker transport is the hermetic carriage of bulk materials in loose form inside the pressurised tank of a silo tanker — with no sacks or big-bags en route. The material (most often polymer regranulate or powder) travels sealed inside the tank, and on arrival it is pneumatically blown straight into the recipient’s silo or installation. From the moment of loading until it drops into the customer’s silo, the entire chain stays closed, so the material has no contact with its surroundings.

Importing PE/PP Granulate from Asia — supply chain

Wed, 26 Nov 2025 00:00:00 +0000

Definition

Granulate import is a supply chain in which plastic in pellet form — most often polyethylene (PE) or polypropylene (PP) — produced in Asia or the Middle East travels by sea in big-bags packed into containers, and after reaching Europe is transloaded at an inland terminal from the bags into silo tankers and delivered in bulk to the processor. In English this stage is called polymer transloading — repackaging the raw material from sea packaging (big-bag) into bulk land packaging (silo tanker), without changing the granulate itself.

Big-bag (FIBC) — types, applications and transport

Tue, 28 Oct 2025 00:00:00 +0000

Definition

A big-bag (FIBC, Flexible Intermediate Bulk Container) is a flexible container for the transport and storage of bulk materials, made of woven polypropylene fabric, with a payload usually from 500 to 1500 kg, equipped with integrated loops for lifting by forklift or crane.

Over the last three decades of working with granulates in Chorula, several hundred thousand big-bags have passed through our hands. It is today the most common packaging unit in plastics logistics — and at the same time a unit whose seemingly simple construction conceals plenty of details that determine the safety and quality of the load. The word “intermediate” is no accident: a big-bag is a packaging intermediate between a 25 kg bag and bulk transport in a silo trailer. It holds as much as is hard to carry by hand, while remaining flexible enough that, once emptied, it takes up minimal space and is suitable for disposal or recycling.

Operation Clean Sweep — pellet loss and batch traceability

Tue, 16 Sep 2025 00:00:00 +0000

Definition

Operation Clean Sweep (OCS) is a voluntary, international plastics-industry programme — run in Europe by PlasticsEurope — whose goal is to prevent pellets, flakes and polymer dust from escaping into the environment at every stage of the supply chain. Signatories commit to striving for zero raw-material loss: from the producer’s reactor, through transport, transloading and storage, all the way to the processor’s line.

Put simply: the point is that not a single pellet should escape the process to a place where it does not belong. From a terminal’s perspective this is not a slogan from a marketing brochure but a daily discipline at the funnel and tray.

25 kg bags for granulate — valve, FFS and PP types

Thu, 14 Aug 2025 00:00:00 +0000

Definition

A 25 kg bag for granulate is a retail unit packaging of a standard mass of 25 kg, most often of polyethylene (PE) film or woven polypropylene (PP) fabric, used for packing, palletising and distributing granulates and other bulk materials to smaller customers. It is the last link in the plastics packaging chain: where the big-bag and the silo trailer handle the mass stream counted in tonnes, the 25 kg bag measures out a portion that a single worker can easily lift and carry.

Polypropylene (PP) — types, properties and transport

Sun, 18 May 2025 00:00:00 +0000

Definition

Polypropylene (PP) is a thermoplastic from the polyolefin group, obtained by polymerisation of propylene, supplied to processors in the form of granulate with a density of about 0.90–0.91 g/cm³, the lightest of the commodity plastics, used in the automotive industry, packaging and the textile industry.

Polypropylene and polyethylene are the two pillars of the polyolefin market and the two most frequent cargoes in granulate logistics. From the terminal’s perspective they are transported very similarly — both are light, both sensitive to contamination — but their properties and end uses differ enough that the processor never confuses them, and neither can we.

Granulate electrostatic charging in plastics transloading

Tue, 25 Mar 2025 00:00:00 +0000

Definition

Granulate electrostatic charging is the accumulation of electrostatic charge on the surface of plastic grains as a result of friction during transfer, transport and transloading — a phenomenon unavoidable with polymer granulates, which are very good insulators and do not drain off the charge spontaneously.

In terminal practice it is one of those problems that do not show up on an invoice yet can ruin an entire operation. Granulate that has become charged sticks to walls, dusts, cakes and causes trouble during filling and emptying. And in unfavourable conditions — with combustible dust or solvent vapours — it stops being a nuisance and becomes a real occupational safety risk. Over more than thirty years working with polyethylene and polypropylene I have learned to treat electrostatics not as a physical curiosity but as a process parameter that must be consciously controlled.

DACH–Poland Silo Tanker Routes — Granulate Logistics

Tue, 04 Feb 2025 00:00:00 +0000

Definition

DACH–Poland routes for silo tanker transport are regular bulk material haulage relations by silo tanker between Poland and German-speaking markets — Germany, Austria and Switzerland — based on the A4/A8 motorway corridor and on load consolidation at a transloading terminal before export. In practice, this means that granulate brought in in big-bags or octabins is transloaded onto a silo tanker and shipped west in bulk as a single, full load.