NATIONAL H-650 HOOK ASSEMBLY
General Description:
The H-650 Hook Assembly is part of a heavy-duty hook and block system used for lifting and rigging operations, primarily in drilling rigs and offshore platforms.
Designed to handle high loads, this hook is typically used in critical hoisting and lifting applications such as raising and lowering drill strings, tools, or equipment.
It is designed to meet the stringent safety standards required in the oil and gas industry, ensuring maximum load-bearing capacity with reduced risk during operation.
Load Capacity:
Working Load Limit (WLL): Typically 650 tons (1,300,000 lbs). This high load-bearing capacity makes it suitable for heavy-duty hoisting operations, especially in offshore and drilling operations. The load limit is dependent on the model and configuration, so confirming with the manufacturer or product specification sheet is always advisable.
Dimensions:
Overall Length: Approximately 50–60 inches (1.27–1.52 meters) depending on the specific configuration.
Width: The hook assembly is typically 16–20 inches (0.4–0.5 meters) at the base, but the dimensions can vary depending on the load capacity and type of application.
Mounting and Compatibility:
Designed to be compatible with drilling blocks, trolley systems, and cranes, the hook assembly is equipped with standardized mounting points and pins.
It can be attached to various rigging and hoisting equipment, allowing versatility for different industrial applications
Weight:
The hook assembly typically weighs several hundred pounds (approximately 300–500 kg), depending on the size and specific model.
Weight variation depends on additional components like sheaves or hook blocks attached to the assembly.
Applications of National H-650 Hook Assembly:
The H-650 Hook Assembly is commonly used in the following applications: Drilling Rigs: For lifting heavy drill strings, casing, and equipment.
Offshore Platforms: For hoisting tools, heavy equipment, and materials.
Crane and Lifting Operations: Used in various crane systems for lifting heavy industrial loads. Heavy-Duty Hoisting: Suitable for any large-scale lifting operations that require robust, high-load capacity hooks.
Oil & Gas Industry: Critical component in the handling of heavy equipment during oil exploration and extraction.
Hoisting tools manufactured by National Oilwell Varco (NOV) are integral components used in heavy-duty lifting and rigging applications,
Particularly in the oil and gas, offshore, and industrial sectors.
Varco (now part of NOV) is well-known for its high-quality hoisting systems and components used in drilling rigs, cranes, and other industrial equipment. These tools are designed to ensure safety, efficiency, and reliability in lifting heavy loads and materials.
DRAWWORKS (HOISTING SYSTEM)
Purpose: Drawworks are central hoisting systems used in drilling rigs to raise and lower the drill string and other equipment. They are designed to handle the heavy loads associated with oil and gas drilling operations.
Specifications:
- 1. Load Capacity: Drawworks can typically handle 150 tons to 1,500 tons depending on the rig’s size and the specific application.
- 2. Drum Size: The drum diameter can range from 24 inches to 60 inches or larger, depending on the capacity of the drawworks and the requirements of the rig.
- 3. Medium Thickness Sheets: 3 mm - 10 mm for gaskets, electrical insulation, and protective linings.
- 4. Thicker Sheets: 10 mm - 100 mm or more for heavy-duty protection, vibration dampening, or impact-resistant applications.
Specifications:
- 1. Load Capacity: Drawworks can typically handle 150 tons to 1,500 tons depending on the rig’s size and the specific application.
- 2. Drum Size: The drum diameter can range from 24 inches to 60 inches or larger, depending on the capacity of the drawworks and the requirements of the rig.
- 3. Motor Power: Drawworks are powered by electric motors or diesel engines, ranging from 1,000 HP to over 5,000 HP.
- 4. Lifting Beams and Spreaders
Purpose:
Lifting beams and spreaders are used to evenly distribute the load when hoisting large or irregu- larly shaped objects. They are typically used in offshore and construction applications.
- 1. Load Capacity: Varies from 5 tons to 500 tons depending on the design.
- 2. Material: Constructed from high-strength alloy steel or carbon steel for durability and resistance to wear.
- 3. Beam Length: Can range from 10 ft to 60 ft or longer, depending on the load distribution required.
Sub Product: Diamond Drill Bits
Specification for Size 6,7,8,9 as Follows:
Diameter: 6 inches (150 mm)
Application:
Core drilling for geological and mineral exploration. Construction for medium-to-hard rock formations.
Ideal for drilling through limestone, sandstone, and soft basalt.
Diamond Grade:
Typically industrial-grade synthetic diamonds.
Bonding Material:
Soft to Medium Bond for faster cutting in medium hardness formations.
Core Type:
Full circle core bit for retrieving continuous core samples.
Cooling Method:
Water-cooled or mud-cooling systems to maintain temperature.
Features:
Designed to deliver high penetration rates.
Excellent for geotechnical drilling in soft to medium-hard rocks.
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