Special Spring Steel Belt For Rolling Shutter Door
Protect your business from the elements with storm shutters. These solid slat shutters nestle into the industry’s smallest housing box.
The compensation means is designed to be inserted in the series of rotating pulleys that support the rolling shutter. The device is characterized by a simple and convenient construction and easy installation, removal and repair.
High Strength
Designed to protect against storms, burglary & vandalism, these shutters are built of interlocking aluminium slats that lock together. They are very light in High carbon spring quenched and tempered steel strip weight & can be custom made to suit your requirements. They are also very durable & can withstand harsh weather conditions & extreme temperatures.
Each set of slats is designed to wrap around the next and not make contact with each other, which eliminates abrasion and marring of the slat surfaces. These shutters are ideal for residential & commercial use. They have been tested for large missile impact and are Florida Building Code approved for HVHJZ & Non-HVHZ zones.
A spring supplementary module 11 is disposed inside the roller of window shade roller 7. The first connector 21 of the supplementary spring module can be non-rotatably connected to the fixed center axle journal 17 of the driver element 5. The second connection 22 is provided at the end of the sturdy tubular galvanized steel base.
The standard spring of the auxiliary roller shutter can be enlarged to provide a larger manipulation force for the window shade. This is to compensate for the loss of the initial manipulation force when the window shade reduces. Besides, the oversize spring can discharge the energy of storage and can assist the manipulation force when raising the window shade.
Light Weight
The spring steel belt is specially designed to be light weight to minimize the effort required to raise and lower shutters. It can be used with both manual and motorized shutters. Its simple construction makes it easy to install and repair. The spring is made of high-quality metals to ensure durability and strength. This makes it safe to use in any application and environment. It also comes with a special locking system to prevent unauthorized or irregular operation of push buttons.
The main objective of this project is to develop a lightweight, low-cost roller shutter solution that will protect doors Tinplate Steel Coil / Sheet and windows against burglary and extreme weather conditions. It features a simple design that allows the slats to nestle into the industry’s smallest coil and is available with five control options. It is also resistant to infiltration during hurricanes and strong winds, preventing water damage to interiors.
DoorHan’s rolling shutters are made with quality materials and are built to withstand various climatic conditions. Our products are fabricated using state-of-the-art automated lines. All metal parts are zinc-coated or painted to provide corrosion resistance and extend their operational life. Our products are tested by independent laboratories to ensure they meet international quality and safety standards and can be operated in a wide range of temperatures. We are committed to providing high-quality products and reliable service to our customers worldwide.
High Durability
The high durability of this special spring steel belt for rolling shutter door makes it highly resistant to the effects of adverse climatic conditions. It is insulating, energy-saving, sealed, efficient and wind-resistant. It is also particularly safe and easy to operate. It occupies only a small area of the top of the opening, leaving sufficient space for the installation and arrangement of pipelines and equipment such as fire pipes, air piping, cables and wires and driving vehicles.
The first element (A) consists of a bracket with a hub (4) designed to be inserted and held against the fixed shaft (2) that supports the series of rotating pulleys around which the rolling shutter is wound. The drum (5) is inserted outside the hub and free to rotate in both directions, and it is peripherally provided with a series of slots (6) that are used as fixing points for the top slate of the rolling shutter. A pin (3) protrudes from the bracket, in parallel position with the axis of the shaft (2), and is used to attach one end of the compensation means.
The second element (B) consists of a special pulley with a box-shaped configuration designed to house a steel belt wound in a spiral and suitably loaded to generate a reaction torque capable of balancing the force exercised by the rolling shutter on the pulleys due to its weight. A pawl is connected to the end of the compensation means by a forked appendix (8), and it moves forward under the thrust of a return spring and engages with the toothed section (9a) of the forked plate (8c).
Easy Installation
The present invention relates to an anti-fall safety device designed for use in rolling shutters rolled around a series of rotating pulleys supported by a fixed shaft and attached to a torsion spring. The device consists of two main elements: a hub (4) designed to be inserted and held against the fixed shaft, and a special pulley (B) fitted with a drum (5) that is free to rotate in both directions, which is peripherally provided with a series of slots (6) used as fixing points for the top slate of the shutter.
When the balancing pawl leaves its rest position due to the thrust of the special return spring, the forked end (8a) interferes with the pin (12) of the said hub, thus making it impossible for the drum to rotate in the direction of the descending travel of the shutter. At the same time, the microswitch of the safety device is triggered to immediately inform the user of the spring failure (by means of indicator lights or acoustic means), thus cutting out the supply of power in case of motorized shutters.
Unlike other shutters, Qompact’s improved slat design is 27 times stronger than a perforated 40mm slip hinge, allowing the slats to nest tightly together. This allows the shutter to roll up into the smallest housing box in the industry and provides superior hurricane protection. It also makes it easy to operate manually or motorized and offers a range of control options to suit your needs.
