{"id":1792,"date":"2026-01-07T09:50:53","date_gmt":"2026-01-07T01:50:53","guid":{"rendered":"https:\/\/www.aluminumetals.com\/?p=1792"},"modified":"2026-01-07T09:54:57","modified_gmt":"2026-01-07T01:54:57","slug":"65mn-roller-shutter-door-spring-steel-strip","status":"publish","type":"post","link":"https:\/\/www.aluminumetals.com\/nn\/65mn-roller-shutter-door-spring-steel-strip\/","title":{"rendered":"65Mn Roller Shutter Door Spring Steel Strip"},"content":{"rendered":"

Roller Shutter Spring Steel<\/a> is designed for shopfronts, industrial roller shutters, overhead sectional doors and rapid roll usage.<\/p>\n\n\n\n

A roller shutter door spring is a heavy-duty steel coil, usually a\u00a0torsion spring, that counterbalances the door\u2019s weight, making it easy to open and close by storing and releasing rotational energy, ensuring smooth operation and preventing the motor from struggling with the door\u2019s significant weight.<\/p>\n\n\n\n

Roller Shutter Door Spring<\/strong> parameters<\/h2>\n\n\n\n
Material grade<\/strong><\/td>50# \/ 65Mn \/ 1050 \/ 1060<\/td><\/tr>
Surface color<\/strong><\/td>Grey blue , poished blue<\/td><\/tr>
Hardness<\/strong><\/td>Hardened&tempered 44-46HRC<\/td><\/tr>
Edge<\/strong><\/td>Round edge, cutting edge<\/td><\/tr>
Packing Details<\/strong><\/td>3m,4m,12kg\/roll,or as customer\u2019s requirement<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Common Size of Roller Shutter Door Spring<\/strong><\/h2>\n\n\n\n
60 x 1.60<\/td>50 x 1.50<\/td>65 x 1.20<\/td>60 x 1.0<\/td><\/tr>
80 x 1.40<\/td>45 x 1.50<\/td>60 x 1.20<\/td>55 x 1.0<\/td><\/tr>
65 x 1.40<\/td>60 x 1.30<\/td>60\u00d71.1<\/td>55 x 1.20<\/td><\/tr>
50 x 1.0<\/td>60 x 1.40<\/td>55 x 1.30<\/td>50 x 1.20<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

65Mn Roller Shutter Door Spring<\/strong><\/p>\n\n\n\n

\"Roller<\/figure>\n\n\n\n
45 x 1.0<\/td>55 x 1.40<\/td>50 x 1.30<\/td>45 x 1.20<\/td><\/tr>
40 x 1.0<\/td>50 x 1.40<\/td>45 x 1.30<\/td>40 x 1.20<\/td><\/tr>
45 x 1.40<\/td>40 x 1.30<\/td>35 x 1.20<\/td>45\u00d71.1<\/td><\/tr>
40 x 1.40<\/td>1.25\u00d750<\/td>50\u00d711<\/td>1.4\u00d770<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

The Roller Shutter door spring is crucial part for safety and functionality of Roller shutter door, located within the barrel above the door, and are essential for balancing the door for manual or automated use, preventing it from slamming shut or being too heavy to lift.<\/p>\n\n\n\n

Rolling shutter door spring steel strip<\/a> refers to a specialized type of steel strip that is used primarily in the manufacture of springs for rolling shutter doors (also known as roll-up doors or sectional doors).<\/p>\n\n\n\n

These steel strips are made from spring steel, a type of steel known for its high elasticity and strength, which allows it to return to its original shape after being deformed.<\/p>\n\n\n\n

Our spring steel strips are made of high-quality steel with excellent elasticity and high strength. Whether it is industrial equipment or daily necessities, spring steel strips can meet your needs for high-performance materials.<\/p>\n\n\n\n

\"Shutter<\/figure>\n\n\n\n

Spring steel strip<\/a> and Roller Shutter Door Spring undergoes a series of processing steps during the manufacturing process, including:<\/p>\n\n\n\n