1. The installation of the roller door machine must hav […]
1. The installation of the roller door machine must have space for maintenance, the installation should be firm and no oil leakage.
2 .The bearing is installed firmly, the bearing is not the same, and the fuel is sufficient.
3. The center of the sprocket of each rotating shaft should be coaxial and without damage.
4. The door roller machine has two types: electric and manual. The fire shutter must be equipped with fire shutter door machine or ordinary roller door machine plus fireproof and heat insulation device, and should obtain fire test certificate.