Kraft paper dunnage bags silicone valves

Kraft paper dunnage bags are a convenient, easy and cost-effective way to secure and stabilize your freight inside of containers and thus protecting it against damages.

Protect the cargo from damage

Dunnage bags are placed in loading gaps, absorbing dynamic loads during transport by compression.

The bags comprise an inliner (inner skin), an outer skin and a valve. The inliner consists of coextruded polyethylene (PE) and holds the air within the bag. The outer skin is manufactured from semi-extensible kraft paper. This type of kraft paper dunnage bags is equipped with silicone valves ensuring easy and fast filling.

Filliing devices for silicone valves

Suitable for the silicone valves, Grönheit & Weigel offer the filling devices SC 100 and STP 100 Turbo, both easy and effective to handle.

Our kraft paper dunnage bags with silicone valves are available in 1PLY and 2PLY. We offer both versions in sizes from 90×120 to 90×210.

Depending on the nature of your cargo, we are glad to assist you in determining the ideal kraft paper dunnage bag ensuring an optimum cost-performance ratio.

  • Technical Specification

    The paper dunnage bags (silicone valve) are available in various sizes and versions (paper layers) available.

    Standard dimensions:

    •   90 cm x 120 cm
    •   90 cm x 150 cm
    •   90 cm x 180 cm
    •   90 cm x 210 cm

    Your size is missing? We are happy to help! +49 2151 70602-55


    Fields of-
    operating pressure
    Max. filling
    Ex factory
    burst load*


    Image detail kraft paper dunnage bag 1-ply

    Image icon container

    Image icon road

    5 kPa/
    0,05 bar
    18 kPa/
    0,18 bar
    54 kPa/
    0,54 bar


    Image detail kraft paper dunnage bag 2-ply

    Image icon container

    Image icon road

    5 kPa/
    0,05 bar
    20 kPa/
    0,2 bar
    60 kPa/
    0,6 bar

    * Burst load measured in a gap (in a stow) of 20 cm.

    Maximum widths of gaps::

    Maximum gaps our dunnage bags can fill in depending on the width can be gathered on the basis of the following schedule.

    Width in cm Length in cm Gap in cm
    • 120
    • 150
    • 180
    • 210

    Silicone valve

    Product image Kraft paper dunnage bag silicone valve

    The self-closing silicone valves were especially developed for this kaft paper dunnage bags.


    Like every technical product kraft paper dunnage bags have resilience limits. Therefore you will find notes with the most important parameters on every kraft paper dunnage bag.

    Our competent sales reps are happy to support you in choosing the adequate kraft paper dunnage bag and matching accessories for your load.

  • What is …

    … a paper dunnage bag?

    A paper dunnage bag consists of three components.

    The first component is an air-filled inner bag (Inliner), responsible for density.

    The second component is an outer bag made of one or more kraft paper layers, responsible for strength: the more layers the stronger the dunnage bag.

    The third component is the especially developed and self-closing valve ensuring an easy filling at high density.

  • Material

    The outer layers consist of semi-extensible kraft paper.

    The Inliner consists of coextruded polyethylene (PE).

  • Additional information

    Dunnage bags were developed at the beginning of the 1970ies as comfortable, easy to handle and cost-saving alternative for securing and stabilizing freight in ISO-containers. They are placed in stowage gaps and absorb dynamic loads during transport through compression.

    The paper dunnage bag is mainly utilized in ISO-containers, on the railway and streets.

    An exact analysis of your application (dimensions and weight of freight, carrier, transport routes, climatic conditions) allows us to recommend the ideal dunnage bag with the best cost-saving factor.

Application Videos

Image video kraft paper dunnage bag (silicone valve) in container STP100 Turbo

Kraft paper dunnage bag
Silicone valve
Device STP100 Turbo

Image video animation example charge sacks

Charge sacks

Complementary Products

Image product filling device SC100


Image product fast filling device STP100 Turbo

STP100 Turbo