Cold Room Door Leaf Manufacturing and the Role of BOB-30169
The primary goals in cold room door leaf manufacturing are:
- Eliminating thermal bridges
- Achieving maximum air tightness
- Ensuring long-term mechanical stability without deformation
The BOB-30169 Aluminum Door Leaf Profile plays a central role in meeting all of these requirements.
- Formation of the Aluminum Door Leaf Frame
The profile is precisely cut according to the door dimensions, and corner joints are assembled to form a rigid aluminum door leaf frame. This frame acts as the main structural skeleton of the cold room door leaf.
- Thermal Break Between Metal Sheet and Aluminum Profile
In the BOB-30169 system, thermal transfer between the metal sheet and the aluminum profile is eliminated by using the BOB-10074 PVC Strip. This detail is one of the most critical factors that determines the thermal performance of the door leaf.
- Polyurethane Injection Process
After the aluminum frame and metal sheets are assembled, high-density polyurethane foam injection is applied inside the door leaf. This process:
- Completely fills the interior volume
- Creates a homogeneous insulation structure
- Turns the door leaf into a monoblock body
The BOB-30169 profile is fully compatible with polyurethane injection systems, ensuring excellent insulation performance.
Designed for Negative Temperature and Deep-Freeze Cold Rooms
BOB-30169 is suitable for:
- Negative temperature cold room doors (-18 °C and below)
- Deep-freeze cold room doors operating at -35 °C to -40 °C
In deep-freeze environments, standard single-gasket systems are often insufficient. Therefore, double-gasket door leaf systems are preferred. The BOB-30169 Aluminum Door Leaf Profile is specifically engineered to support this advanced sealing concept.
What Is a Double-Gasket System and Why Is It Important?
A double-gasket system allows the door leaf to seal against the door frame at two separate contact points, creating a superior insulation barrier. This design offers several critical advantages:
- Minimization of air leakage
- Significant reduction of ice formation
- Prevention of condensation around the door perimeter
- Substantial energy savings
In deep-freeze cold rooms, where temperature differences are extreme, these benefits are essential for stable and efficient operation.
BOB-10074 PVC Strip and the Double-Gasket System
At the core of the BOB-30169 system is the BOB-10074 PVC Strip. This component:
- Interrupts thermal transfer between the metal sheet and aluminum profile
- Creates an additional gasket channel on the door leaf
- Enables the formation of a double-gasket door leaf structure
Key Features of BOB-10074
- Manufactured from high-quality PVC material
- Provides excellent thermal insulation
- Fully compatible with polyurethane injection manufacturing
- Designed for long-term use in deep-freeze cold room doors
Thanks to this PVC strip, a second gasket can be applied to the door leaf, transforming the system into a high-performance double-gasket configuration.
Advantages of Converting the System to Double Gaskets
The double-gasket door leaf system created with BOB-30169 + BOB-10074 offers the following benefits:
- Maximum airtightness
- Significant reduction in energy consumption
- Prevention of icing around the door edges
- Stable performance in deep-freeze conditions
- Extended service life of both the door and gaskets
These advantages directly translate into lower operating costs and higher reliability in cold storage facilities.
Compatible Gasket Models
The BOB-30169 Aluminum Door Leaf Profile is compatible with a wide range of gasket models suitable for double-gasket systems:
- BOB-K3 – Cold Room Sliding Door Gasket
- BOB-P579 – Cold Room Door Threshold Gasket (PVC)
- BOB-P240 – Cold Room Door Threshold Gasket (Alternative Geometry)
- BOB-K31 – Cold Room Door Gasket with Heating Cable Channel
- BOB-K59 – Cold Room Door Gasket (Alternative Dimensions)
These gaskets complete the double-gasket sealing system and ensure optimal performance.
Applications
Using the BOB-30169 Aluminum Door Leaf Profile, the following door leaf types can be manufactured:
- Cold room hinged door leaf
- Cold room sliding door leaf
- Cold room automatic sliding door leaf
- Cold room monorail sliding door leaf
The profile is especially recommended for negative temperature and deep-freeze cold room applications.
Conclusion
The BOB-30169 Aluminum Door Leaf Profile is a professional solution developed for negative temperature cold rooms and deep-freeze rooms (-35 °C to -40 °C). When combined with the BOB-10074 PVC Strip, thermal transfer between metal and aluminum is eliminated, and a high-performance double-gasket door leaf system is achieved.
This makes BOB-30169 an indispensable component for modern cold storage facilities requiring maximum insulation, energy efficiency, and long-term durability.
