For stainless steel free doors, everyone should be familiar with them, such as the stainless steel doors that we often use when a cart hits the door and automatically returns to its original position. How should people choose when choosing brands with varying quality in the market? In the introduction of the characteristics of anti-collision doors, we introduced some unknown issues or knowledge, but they are still unfamiliar to our industry. Today, we will learn about several indicators that need to be paid attention to when purchasing stainless steel free doors.
1、 Certificate of conformity: There must be a certificate of conformity issued by a testing institution and a product certificate from the production enterprise.
2、 Safety level: The safety of stainless steel free doors is divided into A, B, C, and 3 levels. C-level anti-theft performance is high, followed by B-level, A-level is low, and most of them are A-level on the market, which is generally suitable for general households. Level A requirement: All steel, flat open and fully enclosed. Under the interaction of ordinary mechanical hand tools and portable electric tools, their weak links can withstand a net time of no less than 15 minutes of abnormal opening, or they should not be able to cut a 615 square centimeter hole that penetrates the door body.
3、 Material: Currently, stainless steel is commonly used, which is beautiful, durable, and rust resistant. Our stainless steel free door material is mainly 304; The thickness of the steel plate for the door frame shall not be less than 2cm, and the thickness of the steel plate for the front and rear of the door leaf is generally between 0.8cm and 1cm. There is a skeleton and reinforcing plate inside the door leaf.
4、 Sealing strip: Qualified anti-collision doors generally use rubber sealing strips embedded in the door frame, which will not make a harsh metal collision sound when closing the door.
5、 Process quality: Pay attention to checking for defects such as open welding, lack of welding, missing welding, etc., and check whether all joints such as the fit between the door leaf and the door frame are dense, whether the gaps are uniform and consistent, whether the opening is flexible, and whether the paint plating is uniform, firm, and smooth.
Everyone also knows that the range of use for stainless steel anti-collision doors is becoming wider and wider. Industrial passage collision doors have good performance, are sturdy and durable, almost do not require maintenance or replacement of components, do not require power control, and have good sealing performance. The good performance of collision doors has replaced commercial swing doors in the field of industrial channels. The application of new structures and technologies can better isolate noise and reduce heat loss, and non fragile door windows are more suitable for different needs.
Stainless steel anti-collision door The specially designed door plate, anti-collision plate, hinge system and sealing system enable the carrying vehicle to directly hit the door. Compared with the ordinary side hung door, the anti-collision door for industrial passage is more durable and can maintain good sealing performance for a long time. It is a necessary configuration for food, electronics, chemical industry and other industries. It is especially suitable for being used as a logistics passage door with environmental requirements, especially with a large number of passages and small size, More durable, meeting USDA requirements, almost suitable for various industries, with smooth switching
