Export-Ready Retainer Bulkheads Built with Strength, Simplicity & Efficiency
Production Packaging Innovations supplies IP-protected retainer bulkheads engineered for fast, safe, and reliable bulk commodity export. The contour-hugging design moulds to container walls, improving sealing, retention, and overall loading performance. Lightweight yet rigid construction allows for simple, single-person installation, reducing manual handling risks.
The latest No-Cut models remove the need to cut around lugs or make awkward adjustments, improving both installation speed and sealing accuracy. Unloading is equally efficient—simply cut the cardboard as required and remove.
Key Benefits of Retainer Bulkheads
- Lightweight; easy for one person to handle and install
- No-Cut models greatly improve installation time and sealing
- Faster operation, reducing labour and handling costs
- Movable support bars avoid side-wall lugs
- Made to size, available in half-door and full-door options
- Superior strength for better retention and door closure
- Fully compliant with ISPM15 Export Standards
- Enhanced sealing against leakage; moulds to walls, floors, and doors
- Improved unloading process with easy cutting and safe disposal
Applications
Our retainer bulkheads suit a wide range of bulk commodities and export requirements. The design provides strong sealing, easier door closure, and a cleaner, more efficient workflow. Multiple configurations and No-Cut sets allow operators to select the right fit for their commodity and container type.
Wheat
Chickpeas
Sorghum
Coal Briquettes
Barley
Canola
Bone Meal
Cotton Seed
Malt
Corn
Rice
Lentils
Types of Retainer Bulkheads
Single Door cardboard and steel – No Cut Retainer bulkhead
Adjustable support beams
Internal side wall sealing flap
No-Cut pre-notched sidewall feature to avoid channel lugs
Single door – No-Cut multi-piece bulkhead sets
Single Door
Lightweight at approximately 8 kg, this model includes adjustable support beams, pre-notched sidewall features to avoid channel lugs, and sealing flaps for both the floor and walls. No cutting is required during installation, allowing for fast setup and stronger sealing performance.
Double Door
Double-door bulkheads retain bulk product without contacting the container doors and are made to size with no preparation required. Easy for one person to install, it features movable bars with options for different heights and two, three or 4 Bars, subject to the commodity being packed.
3 Bar Model
2 Bar Model
Movable Bars
Floor/Sidewall Sealing Flaps
Floor/Sidewall Sealing Flaps
Retainer Door Clips
Secures the bulkhead for inverting and during loading
Lefthand Door Seal Inserts – large
Retainer Door Clips
Secures the bulkhead for inverting and during loading
Lefthand Door Seal Inserts – small Eliminates the risk of door seal leakage
Custom Bulkheads
Custom bulkhead solutions can also be developed for specialised requirements, including left-hand door seal inserts, retainer door clips, and more. The PPI Solutions & Development Team can engineer solutions to suit various commodity types and export conditions.
Retainer Liners
Manufactured from food-grade material and ideal for grain export, our retainer liners provide an economical solution to the shortage of food-grade shipping containers. They install quickly, reduce return-container costs, and pair perfectly with our patented bulkheads. Available in pallet lots of 50.
Container Desiccants
Pro-Ex Gel Desiccants are designed to control moisture inside shipping containers. Made with calcium chloride and starch, they absorb up to 3 litres of moisture and trap it in a leak-proof gel. A slim profile and built-in hanging hook make installation easy without sacrificing cargo space.
Brands we have worked with
Our experience and expertise span over a range of industries and businesses.





Riordan
Switching to the ‘no cut’ boards has been an absolute game-changer for our operations. Gone are the days of constant cutting and the inevitable mess that came with it. These boards have not only saved us an incredible amount of time but have also drastically reduced spillage. It’s now a rare occurrence that we even need to pick up a saw to trim anything down. Our workflow has become smoother, more efficient, and cleaner thanks to these.
GrainCorp
Here at Graincorp (Melbourne) we have found the new and innovative PPI Retainer Bulkheads great, they have solved many of our past issues, including door closure problems, sealing (now no need for tape) and manual handling. The new bulkheads are lightweight and we’re able to reduce a two-person job down to one.
Riordan
Switching to the ‘no cut’ boards has been an absolute game-changer for our operations. Gone are the days of constant cutting and the inevitable mess that came with it. These boards have not only saved us an incredible amount of time but have also drastically reduced spillage. It’s now a rare occurrence that we even need to pick up a saw to trim anything down. Our workflow has become smoother, more efficient, and cleaner thanks to these.
GrainCorp
Here at Graincorp (Melbourne) we have found the new and innovative PPI Retainer Bulkheads great, they have solved many of our past issues, including door closure problems, sealing (now no need for tape) and manual handling. The new bulkheads are lightweight and we’re able to reduce a two-person job down to one.
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