In cold storage construction, the choice of doors directly affects operational efficiency and energy costs. Polyurethane (PU) and color steel plate are two mainstream materials for cold storage doors, each with its own advantages and application scenarios:
Polyurethane door: Excellent thermal insulation performance (thermal conductivity of 0.022-0.028W/(m · K)), suitable for deep freezing environments ranging from -30 ° C to -60 ° C
Color steel panel door: cost-effective (30-50% lower than polyurethane doors), suitable for refrigeration environments above 0 ° C
Durability comparison: The service life of polyurethane doors is usually 10-15 years, while that of color steel panel doors is 5-8 years
Hygiene standard: The seamless design of polyurethane is more in line with the high hygiene requirements of the food and pharmaceutical industry
High humidity location: Aquatic product processing workshop (humidity often reaches 90% RH)
High cleanliness requirements: pharmaceutical GMP workshop, sterile area for dairy products
Frequent access: Large distribution centers (such as Amazon fresh food warehouses with an average daily switch of 500+times)
Polyurethane has a high initial cost, but it is energy-saving in the long run and suitable for high insulation demand scenarios.
Short term use facilities: Temporary storage of seasonal agricultural products (with a usage period of less than 3 years)
Dry and refrigerated environment: dry goods storage (temperature 0-10 ° C, humidity<60%)
Color steel plate has a low price and is suitable for scenarios such as ordinary refrigerated warehouses where insulation requirements are not extreme and cost control is emphasized; The color steel plate filled with rock wool core material can also meet the A-level fire protection requirements.
Choose as needed, balance performance and cost.
Polyurethane door: Excellent thermal insulation performance (thermal conductivity of 0.022-0.028W/(m · K)), suitable for deep freezing environments ranging from -30 ° C to -60 ° C
Color steel panel door: cost-effective (30-50% lower than polyurethane doors), suitable for refrigeration environments above 0 ° C
Durability comparison: The service life of polyurethane doors is usually 10-15 years, while that of color steel panel doors is 5-8 years
Hygiene standard: The seamless design of polyurethane is more in line with the high hygiene requirements of the food and pharmaceutical industry
Scenarios for Preferred Polyurethane Doors:
Ultra low temperature environment: tuna freezing (-60 ° C), vaccine storage, etcHigh humidity location: Aquatic product processing workshop (humidity often reaches 90% RH)
High cleanliness requirements: pharmaceutical GMP workshop, sterile area for dairy products
Frequent access: Large distribution centers (such as Amazon fresh food warehouses with an average daily switch of 500+times)
Polyurethane has a high initial cost, but it is energy-saving in the long run and suitable for high insulation demand scenarios.
Application of color steel panel doors:
Limited budget project: Initial investment savings of up to 40%Short term use facilities: Temporary storage of seasonal agricultural products (with a usage period of less than 3 years)
Dry and refrigerated environment: dry goods storage (temperature 0-10 ° C, humidity<60%)
Color steel plate has a low price and is suitable for scenarios such as ordinary refrigerated warehouses where insulation requirements are not extreme and cost control is emphasized; The color steel plate filled with rock wool core material can also meet the A-level fire protection requirements.
Choose as needed, balance performance and cost.