1,000,000 LBS Dreko Derrick

Typical Specifications

• Rated Hook Load: 1,000,000 lb

• API Compliance: Typically API Spec 8C PSL-2 or PSL-3

• Sheave Count: Commonly 6 sheaves (heavy-duty blocks)

• Wire Rope Size:

  • Often 2½ in – 2⅞ in (varies by rig)

• Sheave Diameter:

  • Large-frame sheaves (42–48 in)

Applications

Heavy hook-load blocks like this are used on:

• Large land drilling rigs

• Heavy workover / deep drilling

• Top drive systems with big torque

• Casing / liner runs in deep wells

• High-capacity hoisting environments