Fast Door, Rapid Door, Industrial Door manufacturer / supplier in China, offering Automatic Industrial PVC Fabric High Speed Fast Rapid Overhead Rolling Shutter Door with Spring, Automatic High Speed Rapid Belt Stacking PVC Folding Door, Automatic Aluminum Alloy Metal Insulated Thermal Insulated High Speed Rapid Rolling Shutter Door and so on.
|Min. Order / Reference FOB Price||1 Piece||US $1,500-5,000/ Piece|
|Production Capacity:||5000 PCS/ Month|
|Payment Terms:||L/C, T/T, D/P, Western Union, Paypal, Money Gram|
|Opening Type:||Power Driven|
|Product Name||Rapid Rolling Shutter Door with Spring|
Side frame galvanized steel: standard
Top roll: steel tube
Bottom profile: anodised aluminium
Front cover for top roll and drive: optional (aluminium)
Spring balance system and counterbalance system assure perfectly smooth movement with lower noise, higer speed (1.5m/s) and permanent curtain tension in all situations.
the extremely durable, tear resistant fabric with 5 years guarantee.
|Manual Activation||if the power is broken, the door curtain can be manually released and simply lifted by tension springs of the counterbalance system.|
|Security||There is a set of photoelectric protection system on both side of the door to prevent the door collide pedestrian or vehicle,there is a warning lamp on one side of the door, optical grating and air chamber is optional choice for safty.|