Ring Forged Crane Sheave (Reinforced Welded Structure)

The Ring Forged Crane Sheave is designed for heavy-duty lifting systems requiring enhanced structural strength and long service life.

This sheave adopts a composite structure:

• Outer rim manufactured by seamless ring forging

• Central steel plate welded to the forged rim

• Reinforcing ribs welded between hub and rim

• Final precision machining of rope groove

This design combines the strength of forging with the flexibility of reinforced structural welding.

Manufacturing Process

1️⃣ Ring Forging of Outer Rim

The outer rim is produced through ring rolling / ring forging, which provides:

• Continuous grain flow along the circumference

• High density internal structure

• Superior fatigue resistance

• Excellent impact toughness

Compared to cast rims, ring forging eliminates internal shrinkage and porosity.

2️⃣ Structural Welding Assembly

The forged ring is welded to a precision-cut circular steel plate, followed by welding of reinforced ribs to enhance structural rigidity.

The rib design improves:

• Radial load resistance

• Structural stability

• Torsional strength

3️⃣ Precision Machining of Rope Groove

After welding and stress relief, the rope groove is precisely machined to match wire rope specifications, ensuring:

• Smooth rope running

• Reduced friction

• Extended wire rope service life

Structural Advantages

Compared to fully cast sheaves:

• Higher structural reliability

• Better impact resistance

• Lower risk of internal defects

Compared to fully fabricated welded sheaves:

• Stronger outer rim due to ring forging

• Improved fatigue life

• Better wear resistance on rope contact surface

Key Features

• Ring forged outer rim

• Reinforced rib structure

• Precision machined rope groove

• Optional groove surface hardening

• Suitable for heavy-duty hook blocks and hoisting systems

Technical Specifications

• Type: Ring Forged Crane Sheave

• Rim: Seamless Ring Forging

• Structure: Welded Reinforced Plate

• Groove: Precision Machined

• Heat Treatment: Optional Surface Hardening

• Application: Overhead Crane / Gantry Crane / Hook Block

Applications

• Steel Mill Cranes

• Heavy Duty Hook Blocks

• Large Capacity Hoisting Systems

• Double Girder Overhead Cranes

• Industrial Material Handling Systems