The McKissick 380 Lightweight Utility Crane Block is a single-groove crane block engineered for utility crane and hoisting applications where a reduced-weight block design is advantageous without compromising the load capacity required for the application. Rated for a 5-ton working load limit and compatible with wire rope cable in sizes 1/2 inch, 9/16 inch, 5/8 inch, and 3/4 inch in diameter, this block offers broad wire rope size compatibility suited to a range of utility crane and rigging configurations. The 380 series lightweight construction reduces the dead load contribution of the block itself, which can be a meaningful consideration in crane systems where hook load capacity is at a premium.
The 12-inch OD sheave provides a favorable rope-to-diameter ratio across the full range of compatible wire rope sizes, supporting bend characteristics that help reduce rope fatigue and extend service life under repeated hoisting cycles. Equipped with a roller bearing, the block delivers smooth, efficient sheave rotation under load, reducing friction and wear during sustained crane operations. At 32.88 inches in length, 16 inches in width, and 5.34 inches in thickness, the block presents a low-profile, elongated frame geometry characteristic of crane block designs intended for use in hook block and traveling block applications on utility cranes and similar equipment.
The single-groove configuration makes this block well suited to single-part line rigging arrangements on utility cranes, service cranes, and other lifting systems where one wire rope groove is appropriate for the reeving configuration. The McKissick 380 series is part of McKissick's crane block product line, designed to deliver reliable hoisting performance in a lightweight package for utility and general-purpose crane applications. Always confirm wire rope diameter selection, reeving configuration, crane rated capacity, and attachment hardware ratings before placing the block into service.
Material:
Steel block body Roller bearing Wire rope compatible sheave
Compatible With:
Wire rope cable: 1/2 in, 9/16 in, 5/8 in, and 3/4 in diameter
Uses:
Utility crane hoisting operations Single-part line rigging configurations Service crane and general-purpose lifting Hook block and traveling block applications Industrial and construction crane systems
Key Features:
5 Ton working load limit Single groove (1 groove) configuration 12 in OD sheave Accepts wire rope in 1/2 in, 9/16 in, 5/8 in, and 3/4 in diameters Roller bearing for smooth, efficient sheave rotation Lightweight crane block design 32.88 in length x 16 in width x 5.34 in thickness overall dimensions 380 Lightweight Utility Crane Block series construction
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