About Silverback Slings
Made with HMPE fibers, Silverback Slings are better and improved series of new-generation lifting slings made from space-age materials and high-tech design processes.
- High Specific Modulus – Excellent for lifting and mooring in ultra-deep water, highly cut-resistant
- Saltwater Resistance – 100% proof-tested for resistance to prolonged saltwater immersion at ultra-deep levels
General and Technical Data
High-Contact Rigging Efficiency (HCRE)
Most slings require large, fixed diameters, but Silverback Slings offer superior efficiency. Their oversized triple cover with parallel-laid yarn allows reshaping for a perfect fit. With a 5:1 design factor, users must not exceed the rated capacity for safety.
D/D Ratios
To achieve the loads it was designed for, the Silverback Sling System needs to have a minimum of a 3:1 D/d ratio. In other words, the size of the pin around which the slings goes must have at least three times the diameter of the sling at the bearing point
Ratings & Design Factors
Sling ratings are based on a standard wide-body shackle (or equivalent bearing surface) of equal or greater capacity.
Ratings & Design Factors
Stronger
Silverback Slings have up to 40% higher specific strength compared to aramid fibers (Technora, Kevlar), along with excellent toughness and durability.
Lightweight
Silverback Slings are remarkably light; a vertical 15′ 75-ton sling weighs less than 75 pounds. As a result, you can manipulate them without the use of special equipment or work-rated ROVs.
Reduced Elongation
They have a maximum of 3.8% at breaking load.
Floatation Properties
They are lightweight with 0.97-g/cc density. So, they tend to remain relatively stable in the deep water.
Prolonged Saltwater Immersion Tolerance
The HMPE fibers testing showed no reduction in lifting capacity after six months of saltwater immersion. It showed only 1% to 2% loss after 12 months of immersion.
Made in America
All HMPE fibers and cover materials are manufactured in the U.S. Sling fabrication and load testing are performed at HHI’s facility.
API-Q1
Silverback Slings have up to 40% higher specific strength compared to aramid fibers (Technora, Kevlar), along with excellent toughness and durability.
Damping
Superior damping characteristics (vibration, shock, and impact): Silverback Slings can withstand high-load strain rate velocities.
High Specific Modulus
Excellent for lifting and mooring in ultra-deep water.
High-Pressure Resistance
Exceptional high-pressure resistance.
Chemical resistance
High chemical resistance.
Cut-Resistance
Highly cut-resistant.
Fatigue Resistance
They have excellent fatigue resistance.
HHIperlift High Performance Roundslings (HH-SP & HH-SPE)
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HHI Part Number Endless Roundslings
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HHI Part Number Eye and Eye Roundslings
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Vertical WLL in M Ton
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Choker Hitch WLL in M Ton
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Vertical Basket WLL in M Ton
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Approx. Wgt/Ft Length (lbs.)
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Recomm. Wide Body Shackles
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Body Dia
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|---|---|---|---|---|---|---|---|
|
HH-18T-SP
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HH-18T-SPE
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18t
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14.4t
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36t
|
.81
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18t
|
1.43
|
|
HH-25T-SP
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HH-25T-SPE
|
25t
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20t
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50t
|
1.13
|
30t
|
1.75
|
|
HH-50T-SP
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HH-50T-SPE
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50t
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40t
|
100t
|
2.26
|
55t
|
2.38
|
|
HH-75T-SP
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HH-75T-SPE
|
75t
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60t
|
150t
|
3.39
|
75t
|
2.86
|
|
HH-100T-SP
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HH-100T-SPE
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100t
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80t
|
200t
|
4.52
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125t
|
3.5
|
|
HH-125T-SP
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HH-125T-SPE
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125t
|
100t
|
250t
|
5.65
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125t
|
3.89
|
|
HH-150T-SP
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HH-150T-SPE
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150t
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120t
|
300t
|
6.78
|
150t
|
4.29
|
|
HH-175T-SP
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HH-175T-SPE
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175t
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140t
|
350t
|
7.91
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200t
|
4.77
|
|
HH-200T-SP
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HH-200T-SPE
|
200t
|
160t
|
400t
|
9.04
|
200t
|
4.93
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HH-225T-SP | HH-225T-SPE | 225t | 180t | 450t | 10.17 | 250t | 5.57 |
HH-250T-SP | HH-250T-SPE | 250t | 200t | 500t | 11.30 | 250t | 5.89 |
HH-275T-SP | HH-275T-SPE | 275t | 220t | 550t | 12.43 | 300t | 6.21 |
HH-300T-SP | HH-300T-SPE | 300t | 240t | 600t | 13.56 | 300t | 6.52 |
HH-350T-SP | HH-350T-SPE | 350t | 280t | 700t | 15.83 | 400t | 7.16 |
HH-400T-SP | HH-400T-SPE | 400t | 320t | 800t | 18.09 | 400t | 7.48 |
HH-450T-SP | HH-450T-SPE | 450t | 360t | 900t | 20.35 | 500t | 8.43 |
HH-500T-SP | HH-500T-SPE | 500t | 400t | 1,000t | 22.61 | 500t | 8.91 |
*Larger Capacities Available upon Request.