Polyethylene 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.

Octabin — octagonal container: construction vs big-bag

Sat, 20 Sep 2025 00:00:00 +0000

Definition

An octabin (octagonal container) is a rigid octagonal container of multi-layer cardboard, set on a pallet and closed with a lid, used for the transport and storage of bulk materials — most often polymer granulates — with a payload usually from 500 to 1300 kg.

The octabin is a unit known to anyone involved in plastics export. A packaging seemingly trivial — “a cardboard octagon on a pallet” — yet in reality a well-thought-out construction that combines the advantages of rigid packaging with the economy of a palletised unit. Where the big-bag is a bag, the octabin is a box: it holds its shape, can be stacked and protects the grain from the pressure of neighbouring units. The name comes from the Latin octo — eight — and refers to the octagonal cross-section of the body.

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.

Polyethylene (PE) — types, properties and transport

Sat, 19 Jul 2025 00:00:00 +0000

Definition

Polyethylene (PE) is the most common thermoplastic, obtained by polymerisation of ethylene, supplied to processors as a granulate with a density of 0.91–0.96 g/cm³, used for the production of films, packaging, pipes and moulded products.

It is by far the most frequent — though not the only — cargo passing through our terminal; alongside PE and PP we also handle ABS, PS, PA and other plastics, and in general anything that pours well and is not a dangerous good. Polyethylene is a commodity plastic — produced on a scale of tens of millions of tonnes a year, more than any other plastic — and its logistics are the foundation of the entire bulk materials industry in which we have worked for over three decades. The seemingly uniform “plastic” is in fact a whole family of materials with very different properties and transport requirements, and distinguishing them correctly is the first step towards flawless logistics.

Container and silo trailer liner — PE/LLDPE insert

Sat, 17 May 2025 00:00:00 +0000

Definition

A film liner (PE insert) is a single-use insert of polyethylene film — most often LLDPE — that lines the inside of a container, octabin or other means of transport and forms a clean, sealed barrier between the bulk material and the walls of the hold. Thanks to the liner, an ordinary 20’ or 40’ sea container turns into a vessel for loose granulate: the material pours directly into the film, and after delivery it is poured out in its entirety, without touching the dirty container walls.

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.