Quick Details
Place of Origin: Zhejiang, China (Mainland)
Brand Name: DP
Model Number: C/40
square outside: round hole
Packaging & Delivery

Specifications
single-way brake. it can handle about 500kgs door 
Application for Doors ≤500kgs,
Single-way Operation; 
Screw: 30N.m,
the brake max torque: 547N.m;