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Single-loop Big Bag

Single Loop
Big Bag
(Single Loop FIBC)

Big Pak produces single-loop FIBC bags for the transport and storage of bulk materials — mineral fertilizers, polymer granules, and chemical raw materials. Production facility in Ełk, delivery to Poland and the EU, response time to inquiries: 24h.

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Check the specification

Technical specification

Big Pak manufactures four-loop bags from polypropylene (PP) fabric at its production facility in Ełk. Each configuration is developed according to customer requirements.
ParameterRange / options
Safe Working Load (SWL)500 kg / 600 kg / 1,000 kg / 1,500 kg / 2,000 kg
Safety factor5:1 or 6:1
Number of hitches1 (PP fabric loop)
Hook stylestandard / cross
Inletopen top / bottle type / with flap
Departureflat bottom / central discharge / with liner
PE linernone / standard / custom (thickness, closure)
Fabric materialVirgin PP / PP with 30% rPP post-consumer content (GRS chain)
Fabric colournatural (white) / on request
Printnone / 1 colour / full-colour

Select configuration

Single loop, hook lift – a dedicated design for bulk materials requiring leak-tightness and protection against moisture.

Open top z-liner PE

A standard fertiliser bag. The liner protects the bulk material from moisture and caking during transport and storage. The most popular choice in the fertiliser and agrochemical sector.

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Open top z-liner PE

A standard fertiliser bag. The liner protects the bulk material from moisture and caking during transport and storage. The most popular choice in the fertiliser and agrochemical sector.

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Bottle top type

Central outlet with tie-on or spigot closure. Used for materials requiring leak-tightness during filling or precise dosing. Popular in chemistry and polymer granules.

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Bottle top type

Central outlet with tie-on or spigot closure. Used for materials requiring leak-tightness during filling or precise dosing. Popular in chemistry and polymer granules.

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UN 13H3

Bag approved for the transport of dangerous goods of ADR/RID/IMDG classes. UN 13H3 certificate issued by COBRO/Łukasiewicz, valid until 2027. Documentation available on request.

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UN 13H3

Bag approved for the transport of dangerous goods of ADR/RID/IMDG classes. UN 13H3 certificate issued by COBRO/Łukasiewicz, valid until 2027. Documentation available on request.

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What are single-loop Big Bags
used for

MaterialRecommended configurationNotes
Mineral fertilisers (NPK, urea, ammonium sulphate)Open top + PE linerThe liner protects against moisture and caking; a standard in the fertiliser segment
Polymer granulesOpen top or bottle typeOften without liner; SWL 1,000 kg
Chemical raw materials (bulk, ADR transport)UN 13H3UN certificate required; Big Pak has an active 13H3
Wood pellets / biomassOpen top without linerSWL from 500 kg
Industrial waste / recyclingOpen top without linerrPP bags available in the GRS chain

Logistics data:

Minimum order of single-loop bags: 500 pcs (1 pallet)

Response time: 24h / 1 working day

Transport: road only (trucks); 5,000–10,000 pcs / truck for 1,000 kg bags

Delivery area: Poland, EU and neighbouring countries

Documentation: technical specification, certificates, CMR — available on request

Certificates relevant to the agricultural industry

Certificate / StandardApplicationStatus
UN 13H3Dangerous goods transport — ADR/RID/IMDG 2025, packing group IIIActive
ISO 9001:2015Quality management system — production of big-bags (TÜV NORD Polska)Active
GRS v4.0Bags with 30% post-consumer rPP (Control Union)Active

Recycling and ESG

Big Pak holds a GRS v4.0 (Global Recycled Standard) certificate issued by Control Union, active until November 2026. Single-loop bags containing 30% post-consumer rPP are manufactured within a documented chain of custody.

Certification is issued per production batch upon order placement. Production within the GRS chain is also available without certificate issuance — an option for customers who require traceable raw materials but do not require a GRS document for auditing. GRS certification is a service subject to an additional fee.

More about the approach to recycling

Frequently asked questions

Questions we often hear

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Do Big Pak single-loop bags have a UN certificate?

Yes. Big Pak produces single-loop bags approved to UN 13H3 for the transport of dangerous goods in accordance with ADR/RID/IMDG 2025 (packing group III). Certificates issued by COBRO/Łukasiewicz, valid until 2027. Documentation is available upon request.

Are Big Bag bags from Big Pak available with GRS certification?

Yes. Big Pak has held an active Global Recycled Standard (GRS) certificate since 2024. Big Bags with recycled polypropylene (rPP) content are available upon individual order for production batches covered by GRS certification.

Are Big Bag bags from Big Pak available with GRS certification?

Yes. Big Pak has held an active Global Recycled Standard (GRS) certificate since 2024. Big Bags with recycled polypropylene (rPP) content are available upon individual order for production batches covered by GRS certification.

What is the minimum order quantity?

The minimum order for single-loop bags is 500 units (1 pallet). For larger orders, double-stacking is possible - up to 15,000–20,000 units per truck with a SWL of 500–600 kg, or 5,000–10,000 units with a SWL of 1,000 kg.

What documentation will I receive for the tender or ESG report?

We are sending the GRS documentation for the ordered production batches — ready to be attached directly in procurement processes, tenders, and ESG reporting in the EU market.

What documentation will I receive for the tender or ESG report?

We are sending the GRS documentation for the ordered production batches — ready to be attached directly in procurement processes, tenders, and ESG reporting in the EU market.

Does Big Pak supply GRS-certified bags (recycled PP)?

Yes, made to order. Single-loop bags with 30% post-consumer rPP content are produced under the GRS v4.0 chain of custody (certified by Control Union). GRS documentation is issued per production batch after an order is placed – it is not available prior to purchase. GRS certification is an additionally payable service. Production within the GRS chain is also possible without issuing a certificate.

Do rPP Big Bags meet the PPWR requirements?

Big Bag sacks with certified rPP (GRS) content are the answer to the PPWR requirements regarding the share of recycled materials in plastic packaging. The availability and share of rPP are determined upon order — contact us to discuss your specific requirements.

Do rPP Big Bags meet the PPWR requirements?

Big Bag sacks with certified rPP (GRS) content are the answer to the PPWR requirements regarding the share of recycled materials in plastic packaging. The availability and share of rPP are determined upon order — contact us to discuss your specific requirements.

Does Big Pak produce ISO 9001-certified bags?

Yes. The quality management system for the production of big bags at Big Pak is certified according to ISO 9001:2015 by TÜV NORD Polska. The certificate is valid until September 2026. A German language version of the document is available.

How to order Big Bags with recycled materials?

Send an enquiry via the form or to biuro@bigpak.pl. Describe the packaging parameters (SWL, type, inlet/outlet) and state that you require GRS documentation — we will prepare a quote and material specification.

How to order Big Bags with recycled materials?

Send an enquiry via the form or to biuro@bigpak.pl. Describe the packaging parameters (SWL, type, inlet/outlet) and state that you require GRS documentation — we will prepare a quote and material specification.