Cold Storage Sandwich Panel Machine

Cold storage sandwich panel machine is an automated equipment specifically used for producing insulation sandwich panels, mainly used for manufacturing insulation wall materials used in cold storage, factories, logistics warehouses and other places. The cold storage sandwich panel production line combines two layers of metal panels with intermediate insulation materials (such as polyurethane, rock wool, polystyrene, etc.) to form sandwich structural panels with excellent insulation performance.

sandwich panel machine

The cold storage sandwich panel production line has achieved high automation, from raw material feeding, panel pretreatment, foaming/filling to finished product cutting and stacking, the entire process can be completed automatically, with high production efficiency and stable product quality. According to different production processes, there are mainly two types of production lines: continuous and intermittent.

Main equipment composition and functions of cold storage sandwich panel machine

• Uncoiler and leveling machine
  The unwinding machine is used to unfold metal coils (usually color steel plates, stainless steel plates, or aluminum plates), while the leveling machine eliminates the internal stress generated by the coil during the curling process, ensuring the flatness of the panel. High end equipment is equipped with an automatic centering system, which can accurately control the position of the coil.

• Cleaning and pre-treatment system
  Including chemical cleaning, brushing, and drying processes, removing oil stains and oxides on the surface of the panel, and improving the bonding strength of subsequent coating or foaming. Some devices also integrate surface treatment functions, such as passivation or primer coating.

• Forming machine (pressing machine)
  Process flat metal into the desired cross-sectional shape (such as tongue and groove plates, hidden connection plates, etc.) through multiple rolling processes. Modern molding machines adopt computer control, which can quickly replace molds and adapt to different plate types.

• Foam filling system (core part)
  Polyurethane foaming system: It consists of a high-pressure foaming machine, a mixing head, and a temperature control system. Isocyanates and polyols are mixed in proportion and injected into the cavity between panels, and quickly foamed and cured under the action of a catalyst.
  Rock wool/glass wool filling system: using automated cotton laying equipment to accurately control the thickness and density of insulation cotton, some equipment is equipped with online compaction devices.

• Composite press machine
  Provide constant pressure to tightly bond the materials of each layer, divided into:
  Continuous press: runs synchronously with the production line, with segmented control of the pressure roller
  Flat press: intermittent operation, overall pressurization, suitable for thick plate production

• Cutting system
  Using hydraulic or servo controlled flying saws/knives, fixed length cutting can be completed without stopping the production line, with an accuracy of ± 1mm. Advanced equipment is equipped with laser ranging and automatic calibration systems.

• Stacking and packaging system
  Automatically stack finished boards neatly, and some high-end equipment integrates film packaging or bundling functions for easy transportation and storage.

Main technical parameters of cold storage sandwich panel production machine:

• Production line speed: 4-12 meters/minute (continuous line)
  

• Production board width: 600-1200mm (adjustable)
  

• Production board thickness: 50-200mm
  

• Panel thickness: 0.3-0.8mm
  

• Daily production: 2000-6000 square meters (24 hours)

Factors to consider when selecting sandwich panel manufacturing plant for cold storage:

• Product positioning: Select suitable insulation material types (PU/PIR/rock wool, etc.) based on the target market
  

• Automation level: semi-automatic/fully automatic configuration selection
  

• Energy Efficiency: Focus on Heating System Energy Consumption and Waste Recycling Capacity
  

• Scalability: Do you reserve space for process upgrades
  

• Precision requirements: High end cold storage requires extremely high flatness and sealing of the panels

Operating procedures for cold storage sandwich panel manufacturing machines:

• Before starting up, check whether the pressure and temperature of each system are normal
  

• Strictly feed according to the formula ratio (especially for the foaming system)
  

• Regularly calibrate the measuring system and cutting system
  

• Monitor the foam maturation status and adjust process parameters in a timely manner

Maintenance and upkeep of cold storage sandwich panel line:

• Daily: Clean equipment, check hydraulic system oil level
  

• Weekly: lubricate moving parts, check electrical connections
  

• Monthly: Calibrate sensors and check the condition of worn parts
  

• Annual: Comprehensive maintenance and replacement of vulnerable parts