McKissick 407 Super Champion Tail Board Snatch Block - 1-1/8 in - 20 Ton - 14 in - Roller Bearing

Product Description

The McKissick 407 Super Champion Tail Board Snatch Block is a heavy-duty single-sheave block with tail board configuration, designed for wire rope cable applications requiring secure attachment to a fixed anchor point such as a vehicle frame, sled, or structure during pulling and rigging operations. Rated for a 20-ton working load limit, this block is built around a 14-inch outside diameter sheave supported by a roller bearing, delivering smooth, low-friction rope travel under sustained heavy loads. The 407 series accommodates wire rope cable up to 1-1/8 inches in diameter.

The tail board attachment provides a flat, bolted mounting interface that allows the block to be securely fastened to a surface or anchor structure, keeping the block fixed in position during high-tension pulling operations. This configuration is commonly used in logging, land clearing, oilfield, and heavy construction applications where a stationary anchor block is required to redirect a winch or crane line. The roller bearing sheave minimizes friction and heat buildup during operation, extending service life in high-cycle and sustained-load environments.

The Super Champion designation reflects McKissick's higher-strength design tier, engineered for demanding applications where greater working load limits and more robust construction are required compared to the Light Champion series. The 14-inch sheave diameter provides a favorable rope bend radius that reduces wire rope fatigue and extends rope service life across repeated heavy loading cycles. This block is well suited for use with wire rope winches, cranes, and rigging systems in logging, oilfield, offshore, marine, and heavy industrial load-handling operations.

Material:

Steel (body, cheek plates, and tail board) Roller bearing sheave

Compatible With:

Wire rope cable up to 1-1/8 in diameter

Uses:

Fixed-anchor load redirection in heavy wire rope rigging systems Tail board mounting to vehicle frames, sleds, or structural anchors Mechanical advantage in heavy pulling and lifting applications Winch and crane line deflection Logging, oilfield, offshore, marine, and heavy construction rigging

Key Features:

20 Ton working load limit 14 in sheave outside diameter Tail board configuration for secure fixed-surface mounting Roller bearing for low-friction, high-cycle operation Accommodates wire rope cable up to 1-1/8 in diameter Favorable rope bend radius for extended wire rope service life McKissick 407 Super Champion series