Block-Ring® Violin Pulley | Dyneema® Sheave & Hoist

Block-Ring® double gyroscopic pulley

Block-Ring®, High Friction Gyroscopic Violin Pulley

Low-friction double pulley "The power of reeving, the freedom of textile"

Concept description: Optimize your reeving systems with the Block-Ring®, a revolutionary gyroscopic violin pulley. Comprising two low-friction rings mounted on a flexible Dyneema® textile axle, it offers unrivalled versatility. This device redefines efficiency: by replacing mechanical sheaves with high-performance rings, you get total freedom of movement and extreme strength for a derisory weight.

Textile Engineering & Dynamic Alignment: Thanks to its gyroscopic design, the Block-Ring® automatically aligns itself with the axis of effort, eliminating rope twisting. It's the perfect tool for multiplying your force via 3:1 or 4:1 hoists while maintaining a compact installation.

Features & Function :

  • Force multiplication: Ideal for reeving heavy loads and building complex hoists (cascade or 4:1).

  • Modular braking effect: Can be used as a secure holding brake by passing the rope twice or three times through the rings.

  • Zero mechanics: No ball bearings. Totally unaffected by dust, sand, mud or corrosion.

  • Dyneema® pin: Offers exceptional strength-to-weight ratio and greater safety than rigid metal pins (no risk of shattering).

€65.08
Tax excluded
Quantity

Applications: Block-Ring® is the ultimate multi-purpose solution:

  • Pruning & Forestry: Controlled removal, retention and guidance of branches.

  • Offroad & Towing: Vehicle towing and angle deviation in harsh environments.

  • Industry & Construction: Precise load handling and securing of mobile anchorage points.

  • Rescue: Lightweight, ultra-compact evacuation systems for confined or difficult environments.

Technical specifications

  • Materials: Hard-anodized 7075 aluminum rings and high-tenacity Dyneema® fiber textile shaft.

  • Conformity: Certified to Machinery Directive 2006/42/EC.

  • Compatibility: Can be used with all types of synthetic textile rope.

Precautions & Safety

  • Use: Intended exclusively for material handling and lifting (do not use for lifting people).

  • Limits : Do not exceed Maximum Working Load (MWL).

  • Maintenance: Inspect textile axle before each power operation.

Design office

Need a complete "ready-to-use" hoist? We design tailor-made reeving kits incorporating Block-Ring® and our textile shackles to meet your most demanding towing requirements.

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