Frozen warehouse door generally adopts polyurethane pressure injection machine to inject foam on the door leaf of frozen warehouse door. Polyurethane tissue paper is dense and evenly fills all parts of the door. No foam shrinkage phenomenon. The facade is smooth and beautiful, and the thermal insulation performance is reliable.

The guide rail of the freezer door is made of high-strength hard anti-rust aluminum alloy, and the inner side of the guide rail is made of floating and sinking door opening system. When the cold storage door is opened, the cold storage aluminum alloy door frame is sealed with rubber strips to reduce friction. When closed, the cold storage door is pressed against the aluminum alloy door frame according to its own weight to achieve the sealing effect. Hardware and accessories are made of stainless steel precision casting. The door has high precision, beautiful appearance and durability, which ensures that the cold door is light, flexible, safe, labor-saving and easy to install.

Two sets of electric heating antifreeze devices are installed on the door frame, threshold and door leaf of the freezer door to effectively prevent the connection between the refrigerator door and the door frame from freezing with the ground. Safety escape device in the warehouse: When someone accidentally locks in the cold storage, just gently pull the inner escape ring to open the door smoothly and escape safely.

Freezer door is generally equipped with air curtain machine, which can effectively reduce the loss of cold storage capacity.

There are generally two production methods for frozen storage doors: one is to spray polyurethane foam in a prefabricated frame, and the other is to use heat insulation panels. When making refrigeration doors, polyurethane insulation boards are generally used because it is not only strong, but also has a good insulation effect.

Common types of freezer doors: manual sliding doors, electric sliding doors, vertical lifting doors, hinged doors, return doors, etc. Generally speaking, the doors of other special places are also included in the refrigerated doors when they are used in insulation places, such as air-conditioning doors, special doors for slaughter workshops, etc.

Freezing door manual type

Manual sliding door

The door leaf opening and closing adopts manual push-pull translation type, and the top rail adopts curve form. When the door is closed in place, the door leaf automatically presses the floor and door frame. There is a low-voltage electric heater around the door leaf to prevent the door leaf and door frame from freezing at low temperature. The door is also equipped with an internal escape device. When the worker locks the warehouse by mistake, pull the inner escape ring and pull the inner handle of the door, and the door can be opened smoothly. Is an advanced, beautiful, ideal refrigerator door.

Freezer door electric type

Electric sliding door

The refrigerator door is made of high-quality materials and has been specially processed to form a frame. The frame is covered with a metal plate and foamed with polyurethane for one time. The joints of the door leaf, floor and door frame are made of special-shaped rubber materials with low temperature resistance and strong elasticity, and are sealed in two plane forms to improve the sealing performance. Rotation is matched with three-phase conical motor to drive the chain to rotate after deceleration. The rolling bearing is mounted on the rotating part. When the door is opened, it will simultaneously rise and separate the door frame, thereby reducing the friction between the sealing strip and the door frame and the floor, thereby making the opening lighter and the closing tighter. The door is also equipped with manual and internal unlocking escape devices to prevent power failure or malfunction.

Freezing door manual air conditioning

Translational air regulating valve

This series of manual air control valves are developed repeatedly according to the new requirements of fresh-keeping technology and absorbing foreign advanced technology, which solves the technical problem that the air control valve cannot reach the highest international air tightness standard in terms of air tightness. Compared with foreign countries, they have certain uniqueness and advancement in terms of air tightness, opening and closing, and cost.