304 Stainless Steel Swivel Pulley Blocks
(Single & Double Sheave)
DISLAB Precision — High-performance, corrosion-resistant lifting & rigging components crafted from marine-grade 304 stainless steel. Designed for safe, efficient load handling across industrial, marine, and adventure applications.
Our swivel pulley blocks combine smooth operation with robust structural integrity, ideal for environments exposed to moisture, chemicals, or harsh weather. Available in single and double sheave configurations, with sheave sizes from M15 to M100 and load capacities from 35kg up to 1500kg. Engineered for wire ropes and synthetic lines up to 18mm in diameter, the integrated 360° swivel eye prevents rope twist, while precision-machined grooved sheaves ensure low-friction operation and maximum wear resistance.
Material: Marine-grade 304 stainless steel | Finish: Polished, corrosion-resistant | MOQ: 1 piece | Lead Time: 3-7 days for standard sizes, 7-15 days bulk.
Key Specifications
| Product Name | 304 Stainless Steel Swivel Pulley Blocks, Single/Double Sheave |
|---|---|
| Material | Marine-grade 304 stainless steel |
| Configurations | Single sheave, Double sheave |
| Sheave Sizes (Bore) | M15, M20, M25, M32, M50, M75, M100 |
| Load Capacities | 35kg, 75kg, 150kg, 250kg, 400kg, 800kg, 1500kg |
| Compatible Rope Diameters | 6mm to 18mm |
| Key Features | 360° swivel eye, precision-grooved sheave, low-friction bearing system |
| Applications | Lifting, rigging, zip lines, climbing, marine, industrial hoisting |
| OEM/ODM | Custom load ratings, finishes, and packaging available |
Precision Applications
🏭 Industrial Lifting & Hoisting
Applications: Warehouse material handling, factory rigging, construction load hoisting.
Problem Solved: Reliable load support, smooth line movement, reduces operator effort. Corrosion-resistant withstands harsh factory environments, swivel design prevents rope damage.
⛵ Marine & Coastal Use
Applications: Sailboat rigging, dock line management, boat lifting, offshore platforms.
Problem Solved: 304 stainless steel resists saltwater corrosion, eliminates rust-related failure. Polished finish prevents fouling, ensures long-term marine performance.
🧗 Recreational & Adventure
Applications: Zip lines, rock climbing, high ropes courses, camping gear hauling.
Problem Solved: Low-friction sheave ensures smooth, quiet operation. Robust load capacity guarantees user safety, compact design easy to install.
🚁 High-Altitude & Rescue
Applications: Window washing rigging, tower maintenance, mountain rescue, tree care.
Problem Solved: Swivel design prevents rope twist during vertical/horizontal movement, reduces line wear, improves control. High-strength meets safety requirements.
Complete Sizing & Load Range
Detailed specification charts for each sheave size — from M15 to M100, single & double sheave configurations. Our precision-machined pulleys are designed to match wire ropes or synthetic lines up to 18mm diameter. The load capacities range from 35kg to 1500kg, ensuring the right block for light-duty rigging up to heavy industrial hoisting.
All charts include exact groove dimensions, breaking loads, and recommended rope diameters. The marine-grade 304 stainless steel construction guarantees longevity even in constant moisture or chemical environments. Below you will find the complete set of specification tables for both single and double sheave pulleys covering the entire size spectrum.
Select the ideal pulley based on your working load and line diameter. For OEM custom ratings, finishes or engraved branding, contact our engineering team.
Note: Double sheave pulleys provide increased mechanical advantage — ideal for reducing pulling force in lifting and rigging systems.
Real Customer Success
🎢 European Adventure Park · Bulk Order (Germany)
A leading adventure park operator placed a bulk order with DISLAB Precision for 1,200 pieces of M32 (250kg) double sheave pulleys intended for a new zip line and high ropes course expansion. The project required corrosion-resistant, low-maintenance pulleys capable of withstanding constant visitor use and outdoor elements.
Our team supplied standard 304 stainless steel pulleys with polished finishes, tested for smooth rotation and consistent load capacity. The customer reported the 360° swivel design eliminated rope tangling during test runs. After 18 months of continuous operation, the pulleys show no signs of corrosion, wear, or performance loss — exceeding expectations.
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Frequently Asked Questions
Direct Contact Channels
- One-stop service: design, customization, production, and global delivery
- OEM/ODM solutions for industrial and export-oriented buyers
