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Product Description
The McKissick TU-483 Snatch Block in the 1-3/4 inch rope, 24-inch sheave configuration is a heavy-duty, high-capacity snatch block engineered for extreme-duty rigging and lifting operations requiring a 60 Ton working load capacity. Designed to accommodate wire rope up to 1-3/4 inches in diameter, this block features a 24-inch outside diameter roll forged sheave that provides an extended rope bend radius, significantly reducing wire rope fatigue and extending rope service life under the high line loads associated with large-diameter wire rope applications. Roll forging produces a sheave with a refined, dense grain structure that delivers superior toughness and resistance to the extreme mechanical stresses and shock loads encountered in oilfield, offshore, heavy marine, and large-scale construction rigging operations.
The TU-483 is fitted with tapered roller bearings with seals, providing efficient distribution of both radial and axial loads while the sealed bearing housing prevents ingress of water, grit, and field contaminants. This bearing configuration ensures smooth, low-friction sheave rotation under sustained heavy loads, minimizes rope wear at the sheave groove, and reduces maintenance frequency in remote or offshore locations where regular servicing is not practical. The combination of a large 24-inch sheave diameter and sealed tapered roller bearings makes this block particularly well suited for high-cycle, high-load applications where both rope longevity and bearing reliability are critical operational requirements.
As a snatch block, the TU-483 features an openable side plate for lateral wire rope insertion without threading the rope end through the block, enabling rapid rigging changes and efficient load line redirection under field conditions. The 24-inch sheave with 1-3/4 inch rope capacity is well suited for applications involving large-diameter wire rope runs, higher line loads, or situations where minimizing rope wear and fatigue is a priority, including heavy crane rigging, offshore platform and derrick operations, pipeline construction, large vessel mooring and towing assists, and multi-part line systems. Always confirm working load limits, wire rope diameter compatibility, and pin dimensions before placing the block into service.
Material:
Roll Forged Sheave Tapered Roller Bearings with Seals
Compatible With:
Wire Rope up to 1-3/4 in Diameter
Uses:
Heavy Crane Rigging and Load Redirection Offshore Platform and Derrick Operations Oilfield and Pipeline Construction Rigging Large Vessel Mooring and Towing Assists Heavy Civil Construction Lifting Operations Multi-Part Line and Block and Tackle Configurations High-Cycle Applications Requiring Extended Rope Service Life
Key Features:
60 Ton Capacity 1-3/4 in Maximum Wire Rope Diameter 24 in Sheave Outside Diameter for Extended Rope Bend Radius Roll Forged Sheave for Superior Strength and Fatigue Resistance Tapered Roller Bearings with Seals for Heavy Load Performance and Contamination Protection Snatch Block Design for Lateral Rope Entry Without Threading Reduced Rope Wear Due to Large Sheave Diameter Suitable for Extreme-Duty Industrial, Offshore, and Marine Applications
| Specification | Value |
|---|---|
| Sheave Outside Diameter | 24in |
| Sheave Material | Roll Forged |
| Maximum Cable Size | 1-3/4in |
| Bearings | Tapered Roller with Seal |
| Load Capacity | 60ton |
| Series | TU-483 |