Overview: This document outlines the technical specifications and usage guidelines for various marine blocks, categorized by sheave size, material, and intended use.
20MM Dynamic Blocks:- Specifications: 20mm sheave diameter, acetal resin construction, glass-filled nylon cheeks, 316 stainless steel axle, suitable for 2.5-6mm lines.
- Usage: Ideal for control lines, lead blocks, vang cascades, cunningham systems, and halyard leads.
- Features: Dynamic bearing system with stainless ball bearings, full molded jacket, open axle for strength.
30MM Dynamic Blocks:- Specifications: 30mm sheave diameter, similar construction to 20mm blocks, for 5-10mm lines.
- Usage: Used in mainsheet and backstay systems.
40MM Blocks:- Specifications: 40mm sheave diameter, acetal resin, aluminum axle, for 5-12mm lines.
- Usage: Includes sheet blocks, foot blocks, backstay systems.
57MM Blocks:- Specifications: 57mm sheave diameter, acetal resin or high load aluminum, 316 stainless steel cheeks and axle.
- Usage: Suitable for sheet blocks, halyard leads, vang/cunningham systems.
75MM Blocks:- Specifications: 75mm sheave diameter, acetal resin or high load aluminum, 316 stainless steel cheeks and axle.
- Usage: For mainsheet systems on catamarans and yachts.
Web Line Blocks:- Specifications: Sheave sizes 57-125mm, hard anodized aluminum.
- Usage: Runner blocks, mainsheet, genoa lead, mast foot blocks.
Additional Features:- Stainless cheeks with large windows for weight reduction and easy rinsing.
- Roller bearing system for high static load applications.
- Organic bearing system for lightweight performance.
Material Specifications: Acetal resin, glass-filled nylon, 316 stainless steel.
Snatch Blocks Usage: Twinning lines, sheet tidy, continuous furler/code zero take-ups.
Pro-Feeder Features: 316 stainless steel, catch and hinge for easy opening, rolling balls for reduced friction, designed for racing.
Applications: Vang cascades, cunningham systems, halyard leads, high static loads, furler line leads.
Product Specifications: Various part numbers with specific line diameters,
shackle pin diameters, breaking loads, safe working loads, and weights.
Offshore Block Features: Swivel-Stop, composite body, plain bearing system.
Offshore 57mm and 75mm Blocks: CNC aluminum, roller bearing system with Torlon rollers.
Maxi Blocks: Stainless body, high load bearing system, side bearing for indirect load angles.
Joints for Offshore/Maxi Blocks: Various joints with specific pin sizes, SWL, breaking loads, and weights.