McKissick 431 Super Champion Series Snatch Block - 25 Ton - 1 to 1-1/4 in Wire Rope - 18 in Sheave - Roller Bearing

Product Description

The McKissick 431 Super Champion Series Snatch Block is a premium heavy-duty wire rope snatch block engineered for the most demanding high-capacity rigging, lifting, and load-redirecting applications. The 431 Super Champion Series represents McKissick's top-tier snatch block offering, distinguished by its large sheave diameters that deliver superior wire rope bending ratios, extended wire rope service life, and smooth, efficient operation under sustained high-load conditions. This series is purpose-built for environments where wire rope longevity, operational efficiency, and reliability at elevated load ratings are critical priorities.

This block is rated for a 25 ton load capacity and is designed to accommodate wire rope cable ranging from 1 in to 1-1/4 in in diameter. The 18 in outside diameter sheave is among the largest sheave sizes available in McKissick's snatch block lineup and is supported by a roller bearing, which reduces friction during operation, promotes smoother cable travel, and contributes to significantly lower wear on both the wire rope and the sheave under sustained use. The large 18 in sheave diameter provides an excellent wire rope bending ratio at the 1 to 1-1/4 in cable range, making this block particularly well suited to applications where maximizing wire rope service life is a priority. The overall height of 1051 mm reflects the substantial construction required to house an 18 in sheave at this load rating, and this dimension should be carefully verified against available rigging clearances and hook or shackle attachment hardware prior to use.

The 431 Super Champion Series snatch block is well suited to applications requiring load redirection, mechanical advantage in heavy rigging systems, or pulling operations where a high-capacity block with an oversized sheave is required to protect wire rope investment and maximize operational efficiency. Its design supports use in heavy construction, offshore and oilfield rigging, marine lifting, and other industrial environments where performance at the 25 ton load rating with large-diameter wire rope is standard.

Material:

Consult McKissick documentation for confirmed material specifications

Compatible With:

Wire rope cable from 1 in to 1-1/4 in diameter Standard hook, shackle, or swivel attachment hardware rated for 25 ton capacity Heavy and ultra-heavy rigging and load-redirecting applications requiring large sheave diameters

Uses:

Load redirection in heavy rigging systems Mechanical advantage in high-capacity pulling and lifting operations Heavy construction and civil engineering rigging Offshore and oilfield lifting and pulling applications where wire rope longevity is critical Marine heavy lift operations Industrial material handling requiring high-capacity snatch blocks with large sheave diameters

Key Features:

431 Super Champion Series snatch block 25 Ton rated load capacity 1 to 1-1/4 in maximum wire rope cable diameter range 18 in outside diameter sheave — among the largest in McKissick's snatch block lineup Roller bearing sheave support for reduced friction and extended service life under high-load conditions Superior wire rope bending ratio at the 1 to 1-1/4 in cable range for extended wire rope service life Overall height: 1051 mm Designed for wire rope cable applications requiring premium sheave diameter at elevated load ratings

Note:

Material composition and finish details should be confirmed against the official McKissick 431 Super Champion Series product documentation or catalog prior to specification. The 1 to 1-1/4 in cable diameter range should be verified against the wire rope installed in the rigging system before use. All attachment hardware — hooks, shackles, and swivels — must be rated at or above the 25 ton load capacity of this block. The 1051 mm height must be verified against available rigging clearance before use, as the large sheave diameter results in a significantly taller block compared to smaller sheave variants at the same load rating. At the 25 ton load rating, all rigging components in the system must be rated and inspected to match or exceed this capacity. Do not assume certifications or standards compliance without verification from McKissick or an authorized distributor.