McKissick TU-484 Snatch Block - 1-1/4 in - 30 Ton - 20 in - Roller Bearing

Description du produit

The McKissick TU-484 Snatch Block in the 30 Ton, 20-inch sheave configuration is a heavy-duty snatch block engineered for demanding industrial and oilfield rigging operations requiring reliable performance at elevated working load capacities. Designed to accommodate wire rope up to 1-1/4 inches in diameter, this block features a 20-inch outside diameter roll forged sheave that provides an extended rope bend radius suited to the high line loads and repeated load cycles common in crane rigging, offshore operations, and heavy construction applications. The 20-inch sheave diameter provides improved rope protection and reduced wire rope fatigue compared to the 16-inch sheave configuration in the same series, making it a preferred choice when rope service life is a priority alongside the 30 Ton working load requirement.

Roll forging produces a sheave with a refined grain structure and superior toughness compared to cast alternatives, contributing to extended service life under demanding field conditions and resistance to the shock loads encountered in active rigging operations. The TU-484 in this configuration is fitted with roller bearings that support smooth sheave rotation under the radial loads generated during active load line redirection. Roller bearings provide reliable performance across the range of load conditions encountered in snatch block applications, balancing load capacity with efficient operation to reduce friction losses in the rope line and minimize wear on both the bearing assembly and the wire rope.

As a snatch block, the TU-484 incorporates an openable side plate for lateral wire rope insertion without threading the rope end through the block, enabling efficient rigging changes and load line redirection under field conditions. The 20-inch sheave diameter provides an improved rope bend radius over the 16-inch sheave variant in the same series, making this configuration well suited for applications where additional rope protection and reduced fatigue are required at 30 Ton working loads with 1-1/4 inch wire rope. This block is appropriate for crane and derrick rigging, offshore platform operations, pipeline construction, heavy haul and pull applications, and multi-part line configurations. Always confirm working load limits, wire rope diameter compatibility, and pin dimensions before placing the block into service.

Material:

Roll Forged Sheave Roller Bearings

Compatible With:

Wire Rope up to 1-1/4 in Diameter

Uses:

Crane and Derrick Rigging and Load Redirection Offshore Platform and Marine Lifting Operations Oilfield and Pipeline Construction Rigging Heavy Haul and Pull Operations Multi-Part Line and Block and Tackle Configurations

Key Features:

30 Ton Capacity 1-1/4 in Maximum Wire Rope Diameter 20 in Sheave Outside Diameter for Extended Rope Bend Radius and Reduced Rope Fatigue Roll Forged Sheave for Superior Strength and Fatigue Resistance Roller Bearings for Reliable Performance Under Heavy Radial Loads Snatch Block Design for Lateral Rope Entry Without Threading Larger Sheave Diameter for Improved Rope Protection vs. 16 in Sheave Variant McKissick TU-484 Series Suitable for Heavy Industrial, Oilfield, and Offshore Rigging Applications