Classic 25/36/38 cordless automatic rising spring roller shutter system/with beam system with built-in limiter, the roller shutter automatically stops when it rises/falls to a fixed position

1. The system uses steel balls for positioning, achieving locking and unlocking of the spring system. Pull down the lower beam to lower the rolling shutter, and release the release system when it reaches the desired position to unlock and stop. If you need to continue lowering, simply continue pulling down the lower beam. (Note: If the fabric needs to be recycled for a distance of 10cm, first pull down the beam by 2-4cm and then release it. At this time, the system will unlock and the roller blind will automatically rise for recycling. 2. The system has a built-in limiter, which generally sets the maximum height for the roller blind to automatically rise.); 3. The system can choose mechanical and hydraulic retarders based on the temperature conditions of the environment in which they are used; 4. According to the square meter weight of the fabric, the width and height of the roller blind, different specifications of springs can be selected; According to the weight of the lower beam, different numbers of spring pre tightening coils can be set; 5. This system comes with a beam and adjustment mechanisms on both sides. The right self-locking mechanism adjuster is used to adjust the upper limit distance of the system, and the left spring mechanism local adjuster is used to pre tighten the spring and fine tune the spring force after installation; 6. This system is particularly suitable for automatic upward spring roller shutter systems with a height of 2 meters, which are expected to be able to adjust the upward speed and upper limit position of the roller shutter on site after installation. If the height exceeds 2 meters, it may be inconvenient to operate.