Tiger SS20 Corrosion-Resistant Chain Block (Stainless Steel Chain) – 0.5t-20t WLL

Description

Offshore & Subsea Stainless Steel Chain Block for Extreme Marine Environments

The Tiger SS20 Stainless Steel Chain Block from Tiger Lifting represents the highest level of corrosion-resistant manual lifting technology for offshore, subsea, and marine applications.

Developed using decades of offshore lifting expertise, this advanced stainless steel manual hoist is specifically engineered for operation in saltwater, splash-zone, subsea, and high-humidity environments where conventional lifting equipment may fail.

Combining a rugged heavy-duty construction with a fully corrosion-protected finish and a premium-grade stainless steel load chain, the SS20 delivers outstanding reliability, operational safety, and long-term performance in some of the harshest lifting environments in the world.

Stainless Steel Load Chain for Superior Corrosion Resistance

At the heart of the SS20 is a high-performance stainless steel load chain manufactured in accordance with EN818-7 and ISO 16872 standards.

This corrosion-proof chain provides:

• Exceptional resistance to rust and surface degradation
• Precision calibration for smooth operation
• High tensile strength for demanding lifting applications
• Long-term durability in subsea and offshore conditions

Unlike standard alloy chain, the stainless steel chain maintains reliable performance during prolonged exposure to saltwater and marine atmospheres.

Advanced C5M Corrosion Protection System

The SS20 chain block incorporates Tiger’s specialist C5M-grade protective coating system in accordance with ISO 12944, providing maximum protection against aggressive offshore conditions.

Key corrosion-resistant features include:

• Multi-layer C5M coating with electroplated base and durable powder coat finish
• Stainless steel fixtures and fittings throughout
• Phosphor-bronze bearings for superior marine wear resistance
• Bonded marine friction discs with grooved surfaces to prevent aquaplaning

This comprehensive protection system ensures reliable operation in marine, offshore, and subsea environments where corrosion resistance is critical.

Patented Quad Cam Brake System for Enhanced Offshore Safety

The Tiger SS20 range features the patented Quad Cam Pawl Brake System, designed to provide maximum operational safety in demanding lifting environments.

Unlike conventional twin-pawl systems, the Quad Cam design guarantees continuous brake engagement even if a pawl spring fails. This provides a major safety advantage during critical offshore lifting operations.

The advanced brake mechanism allows safe use in:

• Fleeting applications
• Cross-hauling operations
• Drifting lifts
• Angled lifting up to 60° from vertical without deration

The integrated 8-point multi-start pinion shaft improves brake responsiveness by up to 100% compared to traditional systems, ensuring precise load control and smooth operation.

Subsea Tested & Multi-Immersion Verified

The SS20 stainless steel chain block has undergone extensive subsea and marine testing to verify long-term operational performance under real-world offshore conditions.

Testing highlights include:

• Multi-immersion testing conducted by ORE Catapult
• Verified for up to 54 days subsea exposure under saltwater conditions
• Over 1500 hours ASTM B117 salt spray testing
• Proven resistance to prolonged saltwater immersion and corrosion

These rigorous tests confirm the SS20’s suitability for demanding offshore energy, marine engineering, and renewable energy applications.

Optional ROV-Compatible Configurations

For advanced subsea intervention and remote operations, the SS20 is available with fully ROV-compatible configurations.

Available interface options include:

• Hydraulic Hot Stab connections (Type A/B)
• Rotary Torque Receptacles (Class 1, 2 & 3)
• Direct drive systems including D-handle, T-bar, and fishtail options
• Quick Disconnect (QD) coupling systems

ROV-compatible models are available in capacities from 3 tonnes to 20 tonnes, with single or multiple chain falls and bespoke heights of lift.

Optional Overload Protection System

The SS20 can also be supplied with an integrated slipping clutch overload limiter, verified by DNV GL in accordance with NORSOK R-002.

This overload protection system prevents lifting beyond the rated capacity while still allowing controlled lowering of the load, helping protect:

• Operators
• Suspended loads
• Lifting equipment
• Structural support systems

from dangerous overload situations.

Fully Tested & Certified for Offshore Use

Every SS20 chain block undergoes extensive proof testing and inspection prior to dispatch.

Testing includes:

• Proof load testing to 1.5 × rated capacity
• Light load testing at 2% of WLL
• Ultimate strength testing to 4 × WLL or greater
• Chain anchorage testing to 2.5 × WLL
• Continuous cyclic testing exceeding 1500 cycles

Each hoist is supplied complete with:

• Certificate of Conformity
• Test Certificate
• Machinery Directive 2006/42/EC compliance documentation
• Ideal for Offshore, Marine & Renewable Energy Industries

Ideal Chain Block for Industry

The Tiger SS20 Stainless Steel Chain Block is trusted worldwide across industries including:

• Offshore oil & gas
• Subsea intervention and maintenance
• Marine engineering and shipyards
• Offshore wind and renewable energy
• Ports and dockside lifting
• Coastal infrastructure maintenance

Its combination of subsea certification, stainless steel construction, and advanced corrosion protection makes it one of the most capable manual chain hoists available for harsh environment lifting operations.