Cargo Blocks - Deck Machinery and Hull Equipment
Cargo blocks are sheave assemblies used with wire or fibre rope in shipboard cargo-handling and derrick systems. They redirect hauling lines and provide mechanical advantage for lifting, positioning, and securing cargo.
ProShipWorks provides end-to-end support to source and supply Cargo Blocks for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.
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Product Information
| Product Name | Cargo Blocks |
|---|---|
| Product Category | Deck Machinery and Hull Equipment |
| Product Reference | 77 |
| Brands / Manufacturers | Crosby McKissick, Gunnebo Johnson, Ropeblock |
| Unit of Measure | Piece |
Key Features
| Key Feature |
|---|
| 1. Single- or multi-sheave configurations |
| 2. Steel side plates and grooved sheaves |
| 3. Hook, shackle, eye, or swivel attachment options |
| 4. Plain-bushed, bronze-bushed, or roller-bearing sheaves |
| 5. Marked safe working load or working load limit |
Applications of Cargo Blocks
| Application |
|---|
| 1. Ship cargo derrick and union-purchase rigging |
| 2. Deck stores and equipment handling |
| 3. General marine lifting and rope reeving |
Models & Manufacturers
| Model | Manufacturer |
|---|---|
| McKissick 419 Light Champion Snatch Block | The Crosby Group |
Technical Specifications
| Model | Specification | Value | Unit |
|---|---|---|---|
| McKissick 419 Light Champion Snatch Block | Block configuration | Single-sheave side-opening snatch block | — |
| McKissick 419 Light Champion Snatch Block | Attachment type | Hook | — |
Standards, Certifications & Class Approval
Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.
| Applicable Standards & Certification | Ship cargo blocks may be manufactured to JIS F 3421 or an equivalent recognized standard. Selection, proof testing, marking, inspection, and wire-rope compatibility should comply with flag-state requirements, applicable class rules, ISO 4309, and the vessel's approved cargo-gear plan. |
|---|---|
| Class Approval | Certification is normally project- and vessel-specific rather than automatic. Cargo blocks may be inspected, proof-load tested, and certified under the rules of DNV, ABS, Lloyd's Register, Bureau Veritas, ClassNK, or another vessel classification society. |
Installation, Maintenance & Safety Information
| Installation Notes | Select the block for the approved load, rope diameter, groove profile, and required sheave-to-rope diameter ratio. Align the block with the load path, secure pins and retainers, verify free sheave rotation, and reeve the rope without twists or crossovers. |
|---|---|
| Maintenance Tips | Inspect sheave grooves, bearings, side plates, hooks, shackles, pins, and retainers for wear, cracks, corrosion, distortion, and seizure. Lubricate as specified, check rope condition, and maintain inspection and proof-test records. |
| Safety Notes | Never exceed the marked SWL or WLL, shock-load, side-load, or use an uncertified block. Keep personnel clear of suspended loads and snap-back zones. Remove blocks from service if markings are illegible or if cracks, deformation, excessive groove wear, or damaged retainers are found. |
Request a Quote for Cargo Blocks
Contact ProShipWorks for marine or industrial product sourcing, quotations and delivery.
- Vessel name and IMO number
- ETA / vessel schedule
- Berth or vessel location
- Required quantity
- Preferred delivery window
- Shipping agent contact details
Other Deck Machinery and Hull Equipment Products
Explore our range of marine and industrial Deck Machinery and Hull Equipment products available for sourcing and supply through ProShipWorks.
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