In the medical field, packaging is never just a container. For many manufacturers of hemodialysis reagents, the packaging must meet strict standards for cleanliness, stability, and compatibility. Here, the cubitainer has developed into a crucial component of the supply chain. At LIQPACK, we focus on designing cubitainers that meet the high expectations of laboratories, dialysis centers, and global reagent suppliers.

LIQPACK cubitainer is a flexible, collapsible plastic container made from high-purity LDPE. It combines the structure of a cubic shape with the convenience of a foldable liquid carrier. While cubitainers are used in several industries, the medical reagent sector, especially hemodialysis reagent dilution and concentrate solutions, represents the highest demand for reliable packaging. This article explores how LIQPACK designs its cubitainer 20L (5-gallon cubitainer ) to support strict medical requirements, and what truly sets our packaging apart.

Why the Medical Industry Trusts LDPE Cubitainers

The first question many new buyers ask is simple: Why a cubitainer? Why not a rigid jerrycan or a traditional HDPE bottle?

The nature of medical reagents holds the key to the solution. Hemodialysis fluids require packaging that avoids contamination, minimizes extractables, and provides consistent performance across long storage periods. An LDPE cubitainer—especially one produced from high-purity resin—is ideal for this purpose.

At LIQPACK, we use imported LDPE material with exceptional chemical stability. This material resists cracking, reduces interaction with reagent components, and maintains performance even in long-distance cold-chain logistics. Our collapsible plastic cubitainer structure helps prevent air pockets and reduces the risk of reagent deterioration due to oxygen exposure.

The Advantages of a Flexible Cubic Design

A cubic-shaped container delivers more than just aesthetics. The cubic profile improves pallet efficiency, reduces wasted space, and ensures stable stacking during transport. Unlike traditional jerry cans, our cubitainer jerrycan design collapses when empty, saving significant space in storage and return logistics.

Buyers looking for a 20-liter cubitainer often prioritize cost efficiency in freight. The foldable design of a flexible 5-gal cubitainer naturally lowers freight fees because the packaging ships flat. Many customers in the medical industry operate global supply chains, so this efficiency becomes a measurable advantage.

For companies looking to integrate Bag-in-Box systems, LIQPACK offers 20 litres cubitainer, bag-in-box solutions, including the 20L cubitainer bag-in-box configuration. This format is highly compatible with automated filling lines and is widely used for dialysis reagent production.

Clean Manufacturing: Inside LIQPACK’s Dust-Free Workshop

Medical-grade packaging demands more than clean resin. It requires a controlled environment during manufacturing. Our production takes place in a fully managed, dust-free workshop, where airborne contaminants are strictly monitored. This environment is crucial for producing reliable plastic flexible cubitainers for sensitive reagents.

Every liquid cubitainer produced undergoes visual inspection, leak testing, and compression evaluation. Because hemodialysis reagents must meet tight specifications for extractables, LIQPACK performs monthly tests on randomly selected units to ensure the LDPE remains stable under various conditions.

This commitment to quality is why LIQPACK has become a trusted cubitainer supplier for medical reagent manufacturers around the world.

Reducing Plastic Waste Through Smart Design

Sustainability is more than a trend. For many customers, using collapsible cubitainers helps them reduce total plastic consumption across their supply chains. Compared with rigid containers, a foldable liquid cubitainer requires significantly less plastic to achieve the same volume capacity.

A 20L cubitainer can replace heavier, bulkier 20-liter rigid containers that generate more plastic waste and cost more to ship. The environmental benefit is clear: less plastic, less space, and lower transport-related emissions. For medical manufacturers looking to align with global sustainability guidelines, this becomes a major advantage.

Engineered for Hemodialysis Reagents

The most important factor for many of our clients is compatibility with hemodialysis solutions. These reagents require packaging that maintains purity and stability. LIQPACK cubitainers are designed specifically for this industry.

Our blow molding cubitainer technology ensures strong seams, uniform thickness, and precise performance with electrolyte solutions and concentrated dialysis fluids. The smooth internal surface of the plastic cubitainer helps minimize residue, supporting the medical sector’s high standards for hygiene.

For customers using automated filling systems, LIQPACK cubitainers offer stable mouth dimensions and consistent rigidity at the top section, making them suitable for both high-speed and semi-automatic filling equipment.

Why LIQPACK Is the Preferred Choice Among Cubitainer Manufacturers

While many cubitainers manufacturers produce general-purpose containers, LIQPACK is one of the few focusing specifically on the needs of medical applications. This specialization drives every decision we make—from raw material selection to workshop cleanliness to packaging design.

As a cubitainer manufacturer committed to technical quality, we support OEM and ODM projects for laboratories, dialysis reagent producers, and global distributors. Our ability to design, mold, and produce custom cubitainer bags and collapsible liquid carrier soft plastic cubitainers gives our clients flexibility and confidence in their supply chain.

The value of a cubitainer is not only in its shape or material; it lies in its reliability within a demanding industry. LIQPACK cubitainers—whether in 20L, 10L, 5L, or 1L—offer a balance of purity, structural efficiency, and environmental responsibility. With dust-free production, high-purity LDPE, and a focus on medical-grade standards, LIQPACK continues to be a trusted partner for companies producing hemodialysis reagents.

As global demand for reliable and sustainable medical packaging grows, LIQPACK remains committed to advancing the design and performance of the modern cubitainer.