In Indian reefer transport, the material to be used in reefer boxes is a crucial decision for maintaining temperature regulation, strength, and affordability. GRP (Glass Reinforced Plastic), PPGI (Pre-Painted Galvanized Iron), and MS (Mild Steel) are the most frequent materials used by Indian reefer trucks. All three of them have advantages and are employed depending on certain industry needs. Let us comprehend how they measure up and what is best for your requirement.
GRP (Glass Reinforced Plastic) Reefer Boxes
GRP is the widely accepted material employed by cold container manufacturers because it is light in weight, possesses superior insulation characteristics, and is long-lasting. GRP is plastic reinforced and hence highly immune to corrosion, exposure to climate and weather, as well as impacts.
One of the largest benefits of GRP reefer boxes is that they are highly thermally insulated, keeping the interior of the container at a constant temperature. This is perfect for transporting perished goods such as dairy items, seafood, and drugs. GRP panels have a smooth finish, which makes them hygienic and easy to clean, and is especially convenient for the transportation of food.
GRP reefer boxes are more costly compared to other reefer boxes. Even though they cost more, they are more cost-effective in the long run with more fuel efficiency and minimal maintenance.
PPGI (Pre-Painted Galvanized Iron) Reefer Boxes
PPGI reefer boxes are constructed from galvanized iron sheets with a protective coating, which provides the greatest strength and resistance to corrosion. It is usually used in applications that are heavy-duty in nature where strength and load capability are of maximum importance.
One of the standout features of PPGI reefer boxes is that it is a vapor barrier that prevents moisture from entering and maintains the integrity of the insulated foam core. This gives PPGI an excellent solution for frozen foods, meat processing, and heavy-payload transportation.
While heavier than GRP, PPGI is impact resistant and more durable, and can withstand rough handling and long-distance transport. It may, however, not be as thermally insulated as GRP, and thus may need more attempts at cooling.
MS (Mild Steel) Reefer Boxes
MS reefer boxes are suitable for companies looking for inexpensive, but strong and cost-effective, refrigerated boxes. Mild Steel has good strength and toughness properties, and therefore is ideal for heavy-duty use.
One of the most compelling arguments in favor of MS reefer boxes is that they can be customized. They can be designed to meet specific industry requirements and strengthened for added durability. MS is susceptible to corrosion, particularly in wet environments, and needs frequent maintenance and protective coatings to avoid rusting.
MS reefer boxes are most appropriate for non-perishable items or brief-distance transport when temperature maintenance is not most important. Although they are less expensive to purchase upfront, long-term maintenance costs must be factored in.
Which Reefer Box Material is Right for You?
The most suitable reefer box material is determined by your industry needs, finances, and operational needs.
If you need maximum insulation and cleanliness → GRP is the best option for food, milk, and medications.
If you need hardness and strength for more weight → PPGI is best for frozen food and long-distance travelling.
If you want to save money → MS is a low-cost option, if one that must periodically be serviced.
Last Thoughts
Proper choice of the material for the reefer box is imperative to effective refrigerated transportation in India. Whether GRP for insulation, PPGI for strength, or MS for economy, all have their respective benefits.
Sub Zero Reefers is a company that deals with the business of producing high-standard refrigerated trucks in India, providing customized services according to your requirements. In case you need trusted refrigerated container manufacturers, come to Sub Zero Reefers today!
