McKissick TU-481 Snatch Block - 1-1/2 in - 30 Ton - 16 in - Roller Bearing

Description du produit

The McKissick TU-481 Snatch Block in the 30 Ton, 16-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 1-1/2 inches in diameter, this block features a 16-inch outside diameter roll forged sheave that provides a strong, fatigue-resistant rope contact surface suited to the high line loads and repeated load cycles common in crane rigging, offshore operations, and heavy construction applications. 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-481 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. This bearing type is well established in heavy industrial snatch block applications and supports the performance requirements of 30 Ton rigging operations in oilfield, construction, and marine environments.

As a snatch block, the TU-481 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 16-inch sheave diameter provides a suitable rope bend radius for 1-1/2 inch wire rope at 30 Ton working loads, supporting rope integrity and reducing fatigue in sustained rigging applications. For applications where additional rope protection is required, the 20-inch sheave variant in the TU-481 series offers an extended rope bend radius at the same working load and rope diameter. 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 1-1/2 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 1-1/2 in Maximum Wire Rope Diameter 16 in Sheave Outside Diameter 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 McKissick TU-481 Series Suitable for Heavy Industrial, Oilfield, and Offshore Rigging Applications