Snatch Blocks
Double Snatch Block With Hook
A double snatch block with hook and eye attachment, designed for directional force change and mechanical advantage in lifting operations. The K-type frame features a latch for easy rope installation, free-rotating sheaves, and wheel protectors on both sides. Available in sizes from 2" to 7" with safe working loads from 0.25T to 3T, it supports wire rope diameters from 6mm to 19mm. The hook and eye variants allow flexible mounting on cranes, winches, or fixed supports.
- Size
- 2" 0.25T, 3" 0.5T, 4" 0.8T, 5" 1.5T, 6" 2T. 7" 3T
- 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 Double Snatch Block with Hook Gives You
- The latch mechanism allows quick opening and closing of the frame for rope installation without disassembly
- Free-rotating sheaves reduce rope drag and wear during repeated lifting cycles
- Wheel protectors on both sides prevent rope damage from side contact with structural edges
- Dual sheave configuration provides mechanical advantage and directional redirection in one compact unit
- Hook and eye attachment options allow mounting on cranes, winches, or fixed anchor points
- Designed for use with wire rope from 6mm to 19mm, matching common rigging line sizes
- Standard 4:1 design factor ensures consistent safety margins across all capacities
Application Scenarios
Where Double Snatch Block with Hook Is Used
- Winch-based recovery operations where the pull direction must be redirected around a vehicle or obstacle
- Cranes requiring force redirection to lift loads at an angle or into tight spaces
- Chain hoist systems where the block is fixed as a stationary redirect point
- Offshore or marine applications where wire rope must be guided around structural members
- Construction sites using manual or electric hoists with limited space for rigging setup
- Mining and drilling projects where directional changes are needed in confined rigging zones
Who It Is For
Buyers This Product Is Built For
- Rigging contractors sourcing complete pulley block solutions for lifting projects
- Fleet and towing operators specifying snatch blocks for winch recovery kits
- Marine and offshore service providers equipping vessels with directional lifting hardware
- Construction companies integrating pulley blocks into crane and hoist setups
- Industrial maintenance teams requiring reliable, field-installable blocks for equipment lifting
Problems It Solves
Problems This Product Removes
- Need for separate directional redirect and lifting hardware from multiple suppliers
- Rope damage from side contact with fixed structures due to lack of wheel protectors
- Difficulty installing wire rope into a closed frame without a latch mechanism
- High friction and wear from non-rotating sheaves during repeated lifting cycles
- Inflexible mounting options that limit placement on cranes or winches
- Lack of mechanical advantage in setups where force direction must be changed
Technical Features
Technical Features
- K-type frame with dual sheaves and free-rotating bearings
- Latching mechanism for easy rope installation and secure closure
- Wheel protectors on both left and right sides to shield rope from abrasion
- Hook and eye attachment options for versatile mounting
- Standard 4:1 design factor with minimum breaking load four times the safe working load
- Safe working load stamped on the frame for traceability
- Compatible with wire rope from 6mm to 19mm diameter
Specifications
Double Snatch Block with Hook Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Capacity Range | 0.25T to 3T safe working load |
|---|---|
| Size Range | 2” to 7” frame length |
| Rope Diameter | 6mm to 19mm |
| Sheave Type | Double sheave |
| Design Factor | 4:1 minimum breaking load to safe working load |
| Attachment | Hook and eye variant |
| Frame Material | Drop forged carbon steel |
| Surface Finish | Zinc plated or custom |
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 carbon steel frame for high strength and impact resistance
- Heat-treated sheave shafts for long bearing life under repeated loading
- Zinc plated surface finish for corrosion resistance in outdoor and marine environments
- Custom surface finishes available including powder coating and electrophoretic black
Manufacturing Process
How This Product Is Made
1Drop forging of the frame and sheave components
2Heat treatment of the frame and sheave shafts for improved strength
3Machining of sheave bores and frame attachment points
4Assembly of free-rotating sheaves with latching mechanism
5Surface finishing by zinc plating or custom coating
6Working load limit stamping and marking on the frame
7Proof load testing and dimensional verification 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
- Free rotation check on both sheaves and latch mechanism
- Material Test Certificate to EN 10204 3.1 issued with the order on request
- Third-party inspection accepted at the China warehouse before shipment
Customisation
Customisation Options
- Custom tonnage stamping on the frame
- Private label and OEM marking available
- Finish options: zinc plated, powder coated, or electrophoretic black
- Custom size and assembly built to a supplied drawing
- Packing configuration tailored to carton count and pallet pattern
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 |
|---|---|
| Single sheave snatch block | The double sheave provides higher mechanical advantage and greater force reduction but adds weight and requires more rope length |
| Fixed pulley block | The snatch block’s latching frame allows rope installation without disassembly, unlike fixed blocks that require open ends |
| Rigid redirect hook | The rotating sheaves reduce rope friction and wear compared to a fixed hook, but the moving parts require periodic inspection |
| Snatch block without wheel protectors | The protected sheaves prevent rope damage from side contact with structures, extending rope service life |
Use Guide
How To Use And Inspect Double Snatch Block with Hook
- Match the stamped safe working load to the calculated rope tension, not the winch or crane rating
- Ensure the rope runs through the sheave groove and not over the frame edges
- Check that the latch closes fully and the sheaves rotate freely before each lift
- Avoid side loading the block; keep the pull aligned with the frame centerline
- Inspect the frame for deformation, sheave wear, or latch failure before each use
- Retire the block if the marking is illegible, the frame is bent, or the sheave seizes
Related Products
Often Ordered With This Item
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Mounting Block With Hook, Single HQGK
Mounting Block With Eye, Single With A Hinged Lid
Snatch Block with Shackle HDG/ RED Lifting Marine Pulleys
Heavy Duty 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
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Answers
Double Snatch Block with Hook FAQ
What is the mechanical advantage of a double snatch block?
It provides a 2:1 mechanical advantage, meaning half the force is needed to lift the load compared to direct pulling.
Can the block be used with synthetic rope?
Yes, but ensure the sheave groove is sized for the rope diameter and avoid sharp bends that could damage the line.
What safety factor does this block carry?
A standard 4:1 design factor, so the minimum breaking load is four times the stated safe working load.
Are Material Test Certificates available?
Yes, a Material Test Certificate to EN 10204 3.1 is supplied with the order on request.
Can I get custom tonnage marking or branding?
Yes, custom tonnage stamping, private label marking, and OEM packaging are standard options.
How are the blocks packed for export?
Standard carton and pallet packing. We can configure the carton count and pallet pattern to match your warehouse or retail needs. Free storage in Qingdao for up to two months is available.
What sizes and capacities are available?
Available sizes are 2” (0.25T), 3” (0.5T), 4” (0.8T), 5” (1.5T), 6” (2T), and 7” (3T). Rope diameter range is 6mm to 19mm.
Need A Quote On Double Snatch Block with Hook
Send the sizes, the finish and the quantity on WhatsApp or by email. You get a priced reply within 24 hours and a straight answer on stock.
We reply within 24 hours on WhatsApp or by email. Send a drawing, a photo or a bill of materials and we will quote it as it stands.