Snatch Blocks
Heavy Duty Snatch Block With Shackle HDG/ RED Lifting Marine Pulleys
A heavy-duty snatch block with swiveling shackle designed for high-load rigging, towing, and recovery. It features a robust steel sheave, swivel action for alignment, and a high working load limit marked on the body. Available in sizes 3 inch 1.5T to 8 inch 8T, it handles wire rope and synthetic lines up to 18 mm diameter. The block is zinc plated or red painted for corrosion resistance and is used where directional change or mechanical advantage is needed under full load.
- Size
- 3'' 1.5T 4'' 3T 5'' 4.5T 6'' 6T 8'' 8T
- Catalogue Family
- Snatch Blocks
- Certificates
- EN 10204 3.1 material test certificate on request
CAD files are supplied on request via WhatsApp or email rather than published for open download.
Key Benefits
What Heavy Duty Snatch Block with Shackle Hdg Gives You
- Swiveling design allows free rotation to align with load direction and reduce side loading
- Large sheave diameter spreads load over a wider surface, reducing rope wear and heat build-up
- High working load limit marked on the body ensures traceability and safe operation
- Zinc plated or red painted finish resists corrosion in marine, outdoor, and industrial environments
- Built-in shackle allows direct attachment to anchor points without additional fittings
- Reduces friction and line damage compared to fixed redirection points
- Compact design replaces separate snatch block and shackle in many rigging setups
Application Scenarios
Where Heavy Duty Snatch Block with Shackle Hdg Is Used
- Off-road vehicle recovery where a winch line is redirected around a tree or anchor point
- Marine anchor handling and sail hoisting on boats and yachts using wire or synthetic rope
- Construction site lifting and moving heavy steel beams or machinery with a winch system
- Industrial rigging setups requiring a directional change in a high-tension cable path
- Truck and trailer tie-down systems using a winch to secure heavy cargo with a mechanical advantage
- Oil and gas field operations where equipment must be moved under high load and harsh conditions
Who It Is For
Buyers This Product Is Built For
- Off-road recovery kit manufacturers building winch and snatch block systems for 4x4 vehicles
- Marine equipment suppliers outfitting boats with anchor and rigging hardware
- Construction and crane contractors specifying high-load pulley systems for lifting operations
- Industrial rigging distributors needing a single item for directional change and load transfer
- Logistics and transport companies managing heavy cargo with winch-assisted loading
Problems It Solves
Problems This Product Removes
- Rope chafing and premature failure at sharp redirection points due to fixed fittings
- Misalignment and side loading on pulleys that reduce efficiency and wear out components
- Need to buy a snatch block and a separate shackle as two separate items from different suppliers
- Corrosion damage in marine or outdoor environments due to untreated steel surfaces
- Inadequate sheave diameter causing rope compression and heat build-up on synthetic lines
- Lack of traceability in load limit marking leading to unsafe use in high-risk operations
Technical Features
Technical Features
- Swiveling sheave with full 360-degree rotation for dynamic load alignment
- Drop forged steel body with heat-treated sheave for impact and fatigue resistance
- High-strength steel sheave with large diameter to reduce rope bending stress
- Integrated shackle with pin and nut for secure attachment to anchor points
- Working load limit stamped on the body for field traceability and safety
- Zinc plated or red painted finish for corrosion resistance in harsh environments
- Designed for wire rope and synthetic rope up to 18 mm diameter
Specifications
Heavy Duty Snatch Block with Shackle Hdg Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Capacity Range | 1.5T to 8T safe working load |
|---|---|
| Size | 3 inch 1.5T, 4 inch 3T, 5 inch 4.5T, 6 inch 6T, 8 inch 8T |
| Sheave Diameter | Matches size: 3" to 8" |
| Rope Diameter Range | 4–6 mm, 6–9 mm, 8–12 mm, 10–14 mm, 14–18 mm |
| Weight | 1.5 kg to 13.5 kg depending on size |
| Material | Drop forged steel sheave and body |
| Surface Finish | Zinc plated or red painted |
| Design Factor | 4:1 minimum breaking load to safe working load |
Full size table on request. The catalogue publishes a full dimension and capacity table for this item. Ask on WhatsApp or by email and we will send it as a PDF.
Materials
Materials And Finishes
- Drop forged steel body and sheave for high strength and impact resistance
- Heat-treated steel sheave to prevent deformation under repeated high load
- Zinc plated finish to resist rust and corrosion in outdoor and marine environments
- Red paint option for visibility and additional protection in industrial settings
- Steel pin and nut assembly for secure shackle connection
Manufacturing Process
How This Product Is Made
1Drop forging of steel body and sheave blanks
2Heat treatment of sheave and body for hardness and fatigue resistance
3Machining of sheave bore, pin holes, and shackle attachment points
4Assembly of sheave with bearings and swivel mechanism
5Surface finishing by zinc plating or red painting
6Stamping of working load limit and product marking
7Proof load testing and final inspection before packing
Quality Control
Quality Control On Every Batch
- Proof load test on production batches before release
- Dimensional tolerance check against published size table
- Breaking strength validation to confirm 4:1 design factor
- Swivel rotation and end float check for free movement
- Material Test Certificate to EN 10204 3.1 issued with the order
- Third-party inspection accepted at the China warehouse before shipment
Customisation
Customisation Options
- Custom tonnage stamping on the body for specific load requirements
- Private label and OEM marking available for brand-specific packaging
- Finish to order in zinc plating, red paint, or electrophoretic black
- Custom size and assembly built to a supplied drawing
- Packing carton and pallet configuration tailored to warehouse or retail needs
Compare
How It Compares With The Alternatives
An honest read on where this pattern wins and where another one would serve you better.
| Alternative | Honest Trade Off |
|---|---|
| Fixed pulley | The swivel allows dynamic alignment and reduces side loading, but a fixed pulley is simpler and has fewer moving parts |
| Standard snatch block | This version has a higher WLL and larger sheave diameter for heavy-duty use, but is heavier and more expensive |
| Separate shackle and snatch block | Combines both components into one unit, reducing parts count and setup time, but limits flexibility in configuration |
| Synthetic webbing sling with pulley | Steel block handles higher loads and abrasion resistance, but is heavier and less flexible than a soft sling |
Use Guide
How To Use And Inspect Heavy Duty Snatch Block with Shackle Hdg
- Match the stamped working load limit to the actual line load, not the winch rating
- Ensure the rope runs on the sheave crown and not on the side of the block
- Check that the swivel rotates freely and the pin is secured with the nut and cotter pin
- Avoid side loading the block by keeping the pull aligned with the sheave axis
- Inspect the sheave and shackle for deformation, wear, or corrosion before each use
- Retire the block if the marking is illegible, the sheave seizes, or the body shows cracks
Related Products
Often Ordered With This Item
Trawl Block With Eye Single Wheel
Mounting Block With Hook, Single HQGK
Mounting Block With Eye, Single With A Hinged Lid
Snatch Block with Shackle HDG/ RED Lifting Marine Pulleys
Snatch Block With Hook Single Oval Eye Marine Pulleys
Single Sheave Pulley Block With Swivel Oval Eye
Pulley Block Double With Oval Eye B Type
Snatch Pulley Block Triple With Hook B Type
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Answers
Heavy Duty Snatch Block with Shackle Hdg FAQ
What is the working load limit for each size?
Sizes are 3" 1.5T, 4" 3T, 5" 4.5T, 6" 6T, 8" 8T. The WLL is stamped on the body for traceability.
Can it be used with synthetic rope?
Yes. The large sheave diameter reduces bending stress and heat build-up on Dyneema and UHMWPE lines.
Is the finish corrosion resistant?
Yes. The block is zinc plated or red painted to resist rust in marine and outdoor environments.
What safety factor is used?
A standard 4:1 design factor is applied, so the minimum breaking load is four times the safe working load.
Can you supply a Material Test Certificate?
Yes. A Material Test Certificate to EN 10204 3.1 is supplied on request with every order.
Can you custom stamp our brand and tonnage?
Yes. Custom tonnage stamping, private label marking, and OEM packaging are standard options.
How are they packed for export?
Standard cartons on pallets. We can configure carton count and pallet pattern to suit your warehouse or retail pack. Free two-month storage in Qingdao is available.
Need A Quote On Heavy Duty Snatch Block with Shackle Hdg
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