Cast Steel Cargo Blocks with Roller Bearings for Marine Rigging

Our cast steel cargo blocks with roller bearings are engineered for heavy-duty marine applications, providing reliable performance in cargo handling, rigging, and general deck operations. Constructed from high-strength cast steel, these blocks deliver exceptional durability and long service life even in the harshest marine environments.

The integrated roller bearing system reduces friction, allowing for smoother and more efficient operation under heavy loads. Each block is hot-dipped galvanized for superior corrosion resistance, making them ideal for both offshore and harbor use. Available in a range of sheave diameters and load ratings to suit a wide variety of hoisting and rigging applications.

Whether used for assembling a ship's cargo rig or for general purpose deck work, these cargo blocks provide the strength, safety, and performance demanded by marine professionals.

Key Features

Technical Specifications

SpecificationDetails
Product TypeCargo Block
MaterialCast Steel
Bearing TypeRoller Bearing
Sheave Diameter6", 8", 10", 12"
Safe Working Load (SWL)2 to 20 metric tons
Recommended Rope Diameter1/2" to 1" (12–26 mm)
FinishHot-dipped galvanized
ApplicationCargo handling, ship rigging, deck equipment

Frequently Asked Questions

What is a cargo block used for?

A cargo block is a heavy-duty pulley used on ships to guide and support wire or synthetic rope in cargo handling and rigging systems. It reduces friction and changes the direction of the rope while under load.

What does Safe Working Load (SWL) mean?

SWL is the maximum load a block is designed to safely handle during normal use. It is critical to never exceed the rated SWL to prevent equipment failure and ensure safety.

How do I choose the right cargo block size?

Selection depends on the rope diameter, load requirements, and application. Consult the SWL rating and sheave diameter to ensure compatibility with your existing rigging.

Are these cargo blocks suitable for saltwater use?

Yes, the hot-dipped galvanized finish provides excellent corrosion resistance, making them suitable for sustained use in marine and saltwater environments.

Inquire About This Product

Contact us for pricing, availability, and bulk orders:

📧

📞 [Phone protected by JavaScript]

💬

💚 Add on WeChat

Open WeChat and add this ID:

Select Language