6 Best Load Chains For Block And Tackle Systems For Rigging

Whether hoisting gear into a high-altitude basecamp or rigging a complex vehicle recovery system, the integrity of the load chain is the single most critical link in the safety chain. A failure in these systems doesn’t just mean a ruined afternoon; it presents a genuine danger to everyone on the trail. Understanding which materials and specifications meet the demands of your specific adventure ensures that equipment provides reliability when it matters most.

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CM Herc-Alloy 800: Best Overall Rigging Chain

The CM Herc-Alloy 800 stands as the industry benchmark for heavy-duty lifting and rigging applications. Engineered with a specialized heat-treated alloy steel, it offers a superior strength-to-weight ratio that makes it highly effective for backcountry rigging where every pound of gear counts.

This chain is specifically designed to resist the wear and tear of abrasive outdoor environments, including grit-heavy alpine zones and muddy lowland trails. It maintains its structural integrity even under repeated loading cycles, making it the top choice for those who demand long-term durability from their kit.

Opt for the Herc-Alloy 800 if you require a versatile, high-strength solution that won’t let you down during multi-day expeditions. While it commands a premium price, the reliability it provides to serious outdoor enthusiasts justifies the investment for mission-critical rigging.

Peerless Grade 100: Top High-Strength Option

When the stakes are high and the load demands maximum tensile strength, Peerless Grade 100 delivers. This chain provides a significant increase in working load limit compared to standard grade 80 options, allowing for smaller, lighter chain sizes without sacrificing safety margins.

This is the preferred choice for technical rigging scenarios where space and weight are at a premium, such as advanced canyoning or remote expedition logistics. Its construction is optimized to handle the extreme tension often encountered during complex mechanical advantage systems.

Choose this option if you are an experienced rigger who understands the nuances of load distribution and requires the highest strength-to-size ratio available. If you have moved beyond basic setups and into advanced technical systems, the Peerless Grade 100 is an essential upgrade for your gear closet.

Kito V-Series Grade 100: The Premium Choice

The Kito V-Series represents the pinnacle of precision manufacturing in the rigging world. Known for its exceptional surface hardness and resistance to corrosion, this chain thrives in wet, unpredictable conditions where other metals might succumb to rust or structural fatigue.

The V-Series is remarkably smooth to handle, which reduces friction during pulley operations and prevents the snagging common in lower-quality chains. This operational fluidity makes it a standout performer for users who prioritize equipment efficiency and longevity above all else.

This is the definitive choice for the professional-grade adventurer who refuses to compromise on quality. If you are building a permanent or long-term setup for your gear rigging needs, the Kito V-Series is a superlative investment that offers unparalleled peace of mind.

Vulcan ProSeries G-80: A Reliable Workhorse

For the consistent, reliable performer that handles everyday rigging tasks with ease, the Vulcan ProSeries G-80 is an outstanding contender. It is specifically manufactured to meet international standards for overhead lifting, providing a balanced profile that fits most standard block and tackle hardware.

This chain is ideal for the serious weekend warrior who needs robust gear for vehicle recovery or basecamp construction. It handles the typical bumps, drops, and environmental exposure of outdoor travel without requiring the obsessive maintenance of more delicate, high-performance alloys.

Select the Vulcan ProSeries if you need a dependable, no-nonsense chain that offers great value. It is the perfect middle-ground solution for those who want professional safety standards without the extreme cost associated with top-tier industrial chains.

B/A Products G-70: Best for Vehicle Recovery

B/A Products G-70 is engineered with a specific focus on the dynamic, high-impact loads common in vehicle recovery. While its working load limit is lower than G-80 or G-100, its ductility—the ability to deform under extreme stress without snapping—is a critical safety feature for snatching and pulling.

This chain excels in terrain where shock loading is frequent, such as deep mud, snow, or uneven rocky trails. It is the go-to recommendation for overlanders and 4×4 enthusiasts who require a chain that can survive the unpredictable stresses of getting a vehicle unstuck.

It is not designed for overhead lifting, so keep this strictly for recovery scenarios. If your primary focus is off-road extraction rather than vertical hauling, the B/A Products G-70 offers the specific material characteristics necessary for the job.

US Cargo Control G-80: Great Value & Access

US Cargo Control provides an excellent entry point for outdoor enthusiasts who need reliable G-80 rigging gear at an accessible price point. Their chains are fully rated and certified, ensuring that users have the necessary documentation and safety compliance for their rigging projects.

This option is perfect for those outfitting a new trailer or setting up a gear management system for car camping. It provides the high strength of G-80 at a price that allows for the purchase of additional essential accessories like hooks, binders, and slings.

If you are just beginning to build out your rigging collection and need a cost-effective, high-quality solution, US Cargo Control is an excellent starting point. It offers the performance you need without the unnecessary markup of specialty boutique brands.

Chain Grades Explained: G-70, G-80, and G-100

Chain grades refer to the material strength and intended use of the steel. G-70, often called “transport chain,” is designed for heavy-duty towing and binding, characterized by high durability but generally restricted from overhead lifting.

G-80 is the standard for overhead lifting and critical rigging. It undergoes rigorous heat treatment to balance strength and ductility, ensuring it can hold significant weight while providing a safety margin before failure.

G-100 is the high-performance tier, offering roughly 25% more strength than G-80 chains of the same diameter. While this allows for lighter rigging assemblies, it requires precise handling and strict adherence to maintenance, as the increased hardness can make the links less forgiving under extreme, sudden shock.

Key Safety Checks Before You Rig Any System

Before every use, perform a visual inspection of the entire chain length. Look specifically for nicks, gouges, or cracks that might have developed during previous trips, as these are stress concentrators that lead to catastrophic failure.

Check for signs of stretching or “link elongation.” If a link no longer fits smoothly against its neighbor or doesn’t sit flush within the pocket of a block or hoist, the chain has been overloaded and must be retired immediately.

Always verify the Working Load Limit (WLL) against the weight of the load you intend to move. Never assume the chain can handle a job simply because it looks sturdy; the math of mechanical advantage often multiplies forces far beyond what the eye perceives.

How to Inspect and Maintain Your Load Chains

Maintenance begins with proper storage. After a trip in wet or salty conditions, clean the chain thoroughly and apply a light coating of machine oil to prevent surface corrosion.

Store chains in a dry, ventilated area away from chemicals that could cause hydrogen embrittlement. Keep a simple logbook of the chain’s age and usage frequency, especially for systems that support life-critical loads or expensive equipment.

Periodically measure the “pitch” of the links—the distance between the centers of two adjacent links—to ensure it hasn’t stretched beyond the manufacturer’s specified tolerance. When in doubt, replace the chain, as the cost of a new link is trivial compared to the cost of an accident.

Matching Chain Size to Your Working Load Limit

Matching a chain size is not just about fitting the physical diameter into a pulley; it is about calculating the load at the most vulnerable point of the system. Always factor in the angle of your rigging; as the angle between legs increases, the tension on each leg rises exponentially, often exceeding the weight of the object itself.

Consult the manufacturer’s WLL charts to ensure your chosen size provides a safety factor of at least 4:1 for general rigging. This buffer accounts for minor dynamic forces like sudden wind gusts or small shifts in weight during a move.

When upgrading your setup, err on the side of a higher-grade chain rather than a larger diameter one. A higher grade (e.g., switching from G-70 to G-80) provides the strength increase you need while keeping the system weight lower, which keeps your pack or vehicle lighter for the journey.

Choosing the right load chain is a fundamental skill that transforms how you manage gear, vehicle recovery, and complex site setups. By selecting equipment that matches your specific intensity level and maintaining it with care, you turn a complex rigging task into a smooth, routine operation. Focus on the durability and safety metrics discussed here, and you will have the confidence to tackle any challenge the trail throws your way.