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Sockets

Closed Spelter Sockets

Outlines the parameters for the CSS series of closed spelter sockets designed for permanent end terminations. Matching the capacity range of the open series up to 3527 UStons, the tables provide critical technical dimensions (A through TL) to allow for precise fitment within complex rigging and hoisting assemblies.

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Engineered for Ultimate Structural Rigging: High-Performance Closed Spelter Sockets

The Closed Spelter Socket (CSS) is a premium termination component designed for permanent wire rope and strand installations in heavy-lift and structural applications. Manufactured from quenched and tempered cast steel, these sockets provide a streamlined, high-strength connection point that ensures maximum load transfer and long-term durability in challenging industrial and maritime environments.

Maximum Strength & Material Integrity
  • Quenched and Tempered Steel: The socket body is constructed from high-grade quenched and tempered cast steel to provide superior structural resilience.
  • Extreme Load Capacities: Standard models feature a Minimum Breaking Load (MBL) ranging from 9 UStons up to 3527 UStons.
  • Certified Compliance: Every unit is supplied with an EN 10204-2.1 declaration of conformity and an EN 10204-3.1 material certificate.
  • Advanced Corrosion Protection: Standard finishes include blue primer coating and hot-dipped galvanizing (Note: models CSS 296 through CSS 201 are galvanized only).
Precision Engineering & Industrial Versatility
  • Broad Wire Compatibility: Optimized for wire rope diameters from 1/4″ to 8″ and strand diameters from 2/16″ to 7-1/2″.
  • Controlled Tolerances: Manufactured with dimensional tolerances of ±5% for the bow opening (K) and bow thickness (T) to ensure consistent integration.
  • Optimized Design: The closed-end configuration provides a clean, snag-resistant profile suitable for offshore mooring, bridge stays, and large-scale crane rigging.
  • Adaptable Dimensions: Precision-machined internal chambers ensure proper speltering for a variety of strand and rope constructions.

Closed Spelter Socket Technical Specifications

Below is a partial specification table for CSS models. Please contact our technical team for full dimensional data (A, B, C, H, TA) and MBL verification based on your specific wire rope or strand requirements.

⚠ Safety Warning: Always adhere to the Minimum Breaking Load (MBL) and ensure that all speltering is performed by qualified personnel. Surface finishes like galvanizing or paint may slightly increase overall thickness; always verify clearance before installation. Refer to the comprehensive safety documentation on pages 136-140 for full maintenance and speltering procedures.