Prevent damage & injury caused by Spring Spring feature:Operating cycle is 60000 operation cycle Galvanized Treatment Finished

Prevent damage & injury caused by Spring

Lifting Door Torsion Springs & Extention Springs are available.

Spring Feature:

1). Torsion spring type: it can be made of Oil-tempered Process or Zinc Galvanized Process.

  

2). The Torsion Spring's size, length such Dia.of steel, steel type can be customized according to customer's requirements. It's more easily for customer to cut or adjust. 

3). Operating cycle of torsion spring is 60000 operating cycles.

4). Delivery to Destination can be organized by our factory.

Garage Door Parts--- Protection of Torsion Spring