Stainless Steel Single-Double Pulley Block Traction Wheel Swivel Lifting Rope

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Stainless Steel Single-Double Pulley Block Traction Wheel Swivel Lifting Rope

HomeDIYer

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By HomeDIYer®

Type: Single

Size: 15mm - 35kg

Price:

$3.25 USD

Stock:

In stock (500 units), ready to be shipped

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Stainless Steel Pulley Block — Single & Double Wheel Swivel Lifting Solution

When you need a reliable rope-traction or load-lifting solution for marine, workshop, or outdoor rigging tasks, a poorly rated pulley block can slip, corrode, or fail under load — putting your project and safety at risk. These stainless steel swivel pulley blocks are engineered for makers, riggers, and DIY enthusiasts who demand consistent performance across a wide range of working loads.

Each pulley block is constructed from stainless steel, offering strong corrosion resistance in wet, coastal, and industrial environments. Available in single-wheel and double-wheel configurations, sizes range from 15 mm (approx. 0.6 in) up to 100 mm (approx. 3.9 in) wheel diameter, with rated working loads from 35 kg up to 1,000 kg depending on the variant selected.

Typical use cases include sailboat and marine rigging where salt-air resistance is critical, overhead rope-and-pulley lifting systems in home workshops and garages, and load-redirecting setups in DIY zip-line or tensioning rigs. The swivel attachment point allows 360° rotation, reducing rope twist during operation.

🔗 Compatibility: Fits standard fiber rope and wire rope within the groove width of each size. Swivel hook fits most standard shackles and anchor points. Verify rope diameter against wheel groove before ordering.

✅ Key Features of These Stainless Steel Pulley Blocks

🔩 Stainless Steel Construction — Resists rust and corrosion in marine, outdoor, and humid environments for long service life.
🔄 360° Swivel Hook — Rotating attachment point prevents rope twist and allows flexible rigging angles without re-positioning the anchor.
⚖️ Wide Load Range — Single-wheel variants rated 35 kg–1,000 kg; double-wheel variants rated 35 kg–1,000 kg with mechanical advantage for heavier lifts.
📐 Multiple Size Options — Wheel diameters from 15 mm to 100 mm (0.6 in–3.9 in) to match your rope diameter and load requirements precisely.
🔁 Single & Double Wheel Configurations — Single block for simple rope redirection; double block for mechanical advantage and reduced pulling effort.
🛠️ Versatile Rigging Applications — Suitable for marine rigging, workshop hoists, rope tensioning systems, and outdoor DIY lifting setups.

📐 Technical Specifications — Stainless Steel Pulley Block

Material	Stainless Steel
Configuration	Single Wheel / Double Wheel (see variant options)
Wheel Diameter	15 mm / 20 mm / 25 mm / 32 mm / 50 mm / 75 mm / 100 mm (see variant options)
Working Load Limit	35 kg / 75 kg / 150 kg / 250 kg / 400 kg / 750 kg / 1,000 kg (see variant options)
Attachment Type	Swivel Hook
Rope Compatibility	See variant options
Finish	Polished Stainless Steel
Overall Dimensions	See variant options
Weight per Unit	See variant options

❓ Frequently Asked Questions

How do I choose between a single and double pulley block?

A single pulley block redirects the rope's pull direction without mechanical advantage — ideal for simple lifting or rope routing. A double pulley block creates a 2:1 mechanical advantage, meaning you need roughly half the pulling force to lift the same load. Choose double if you are lifting heavy loads manually or want to reduce effort in a block-and-tackle system.

What size pulley block do I need for my rope?

As a general rule, the pulley wheel diameter should be at least 8–10× the rope diameter for fiber rope, and at least 12× for wire rope, to avoid excessive wear and bending stress. Check the groove width of your chosen size variant against your rope's outer diameter before ordering. If in doubt, size up.

Is stainless steel strong enough for heavy lifting?

Yes. Stainless steel offers a strong strength-to-weight ratio and is widely used in marine and industrial rigging. Each variant lists its rated working load limit (WLL) — from 35 kg up to 1,000 kg. Always stay within the stated WLL and apply an appropriate safety factor (typically 4:1 or 5:1) for overhead lifting applications.

Will these pulley blocks rust in a marine or outdoor environment?

Stainless steel provides strong corrosion resistance in salt-air and wet environments, making these blocks well-suited for marine rigging, boat sailing, and outdoor use. For prolonged saltwater immersion, periodic rinsing with fresh water and light lubrication of the swivel joint is recommended to maintain smooth operation.

Can I use these blocks with wire rope instead of fiber rope?

These pulley blocks are compatible with both fiber rope and wire rope, provided the rope diameter fits within the wheel groove. Wire rope requires a larger wheel diameter relative to rope size to prevent fatigue. Confirm the groove dimensions of your selected size variant match your wire rope's outer diameter before use.

What is the difference between the 15 mm and 100 mm variants?

The 15 mm variant (35 kg WLL) is suited for light-duty rope routing, small sailboat rigging, or DIY tensioning projects. The 100 mm variant (1,000 kg WLL) is designed for heavy industrial or workshop lifting applications. Select the size that matches both your rope diameter and your maximum expected load, with an appropriate safety margin.

How does the swivel hook work and is it lockable?

The swivel hook rotates 360° around its attachment axis, allowing the pulley block to self-align with the load direction and preventing rope twist during operation. The hook is not a locking snap hook — for applications where accidental unhooking is a concern, use a shackle or a locking carabiner at the attachment point instead.

🛒 Select your Type (Single / Double) and Size above, then add to cart.