1）crane Sheaves block structure

2） Forging Pulley Crane Sheave Block description

1. Sheave large range of size available: Φ800 mm~Φ3000mm

2. Sheave rim Forging Material : 45(S45C); Q345B Q345D,Q345E( used for -40℃) ,35CrMo and so on or according clients request for sheaves

3. Sheave groove :

a. Groove profiles : according client request and manufacture by CNC .

b. groove heat treatment by intermediate frequency quenching , hardness Min. HB350-370 and deep around ≥2.5mm . (different material can getting different hardness )

c. Groove MT test after heat treatment

4. Sheave welding process according WPQR (WPS) AWD1.1 welding line