McKissick 431 Super Champion Snatch Block - 1 to 1-1/8 in - 20 Ton - 10 in - Roller Bearing

Product Description

The McKissick Series 431 Super Champion Snatch Block is a heavy-duty single-sheave block engineered for high-capacity rigging, pulling, and load-redirection operations in demanding industrial environments. Rated to a 20-ton working load capacity and designed to accommodate wire rope from 1 to 1-1/8 inch in diameter, the Series 431 is built for applications where structural strength and sustained performance under load are critical. The 10-inch sheave outside diameter provides a suitable rope bend radius to help maintain wire rope integrity during heavy-load operations in oilfield, construction, marine, and offshore settings.

This Super Champion variant features a roller bearing assembly, offering reduced friction during operation compared to bushing bearing alternatives, resulting in smoother rope travel and extended service life for both the sheave and wire rope under repeated use. The snatch block design incorporates a side-opening cheek plate, enabling the block to be attached to or removed from a wire rope at any point along its length without threading the line — a significant advantage in field rigging situations where speed and accessibility are priorities.

McKissick's Super Champion designation identifies an elevated tier of construction within their block product line, intended for sustained use under high working loads in harsh field conditions. These blocks are commonly used with heavy winches, cranes, and pulling systems to redirect wire rope leads or to build mechanical advantage into a tackle system. All shackles, hooks, and attachment hardware used in conjunction with this block should be rated to match or exceed the 20-ton working load limit to maintain a safe and compliant rigging assembly.

Material:

Steel construction (housing and cheek plates) Roller bearing

Compatible With:

1 in to 1-1/8 in wire rope

Uses:

Wire rope load redirection Heavy winch and crane rigging systems Oilfield and construction pulling operations Marine and offshore rigging High-capacity mechanical advantage tackle systems

Key Features:

20 Ton working load capacity 10 in sheave outside diameter Accepts 1 to 1-1/8 in maximum cable diameter Roller bearing for reduced friction and extended service life Side-opening snatch block design for mid-line attachment McKissick Series 431 Super Champion