By Coco
Hook Block
- Designed to 8C.
- Frame used the High strength steel material.
- Main hook install the safety device.
- Frame used the High strength steel material.
- Sheaves groove through the heat treatment, Improve surface hardness, wear resistance and service time.
- Brake system can adjust 360ºC.
- Technical Specification
Hook:
| Model | DG90 | DG135 | DG170 | DG225 | DG315 | DG450 | DG585 | |
| Max. Hook Load | kN | 900 | 1350 | 1700 | 2250 | 3150 | 4500 | 5850 |
| Ton | 100 | 150 | 200 | 250 | 350 | 500 | 650 | |
| Main hook opening size | Mm | 155 | 165 | 180 | 190 | 220 | 238 | |
| in | 6-1/16 | 6-1/2 | 7 | 7-1/2 | 8-5/8 | 9-3/8 | ||
| Assistant hook dia. | Mm | 80 | 90 | 100 | 120 | |||
| in | 3-1/8 | 3-1/2 | 4 | 4-3/4 | ||||
| Spring stroke | mm | 180 | 200 | |||||
| in | 7 | 8 | ||||||
Traveling Block:
| Model | YC90 | YC135 | YC170 | YC225 | YC315 | YC450 | YC585 | |
| Max. Hook Load | kN | 900 | 1350 | 1700 | 2250 | 3150 | 4500 | 5850 |
| Ton | 100 | 150 | 200 | 250 | 350 | 500 | 650 | |
| Sheave O.D. | Mm | 762 | 915 | 1120 | 1270 | 1524 | ||
| in | 30 | 36 | 44 | 50 | 60 | |||
| Sheave Qty | 4 | 5 | 6 | 7 | ||||
| Wire Rope Dia. | mm | 26 | 29 | 32 | 35 | 38 | 42 | |
| in | 1 | 1 | 1-1/8 | 1-1/4 | 1-3/8 | 1-1/2 | 1-5/8 | |
The Hook Block includes a traveling block and a hook, it can be used to lifting drill string when in drilling situation.
Its housing assembly is made of thick section steel plate and wire rope is kept taut when hoisting or lowering the unload block.
Sheave grooves are hardened by medium frequency induction to provided extended service life Working sheaves have double-row conical roller bearings and each bearing is individually lubricated The sheaves are interchangeable with Corresponding Crown Block.
The Traveling Block and the Hook conforms to 8C.
Hook Block Overview
The hook block is an essential lifting device used in drilling operations to handle the drill string. It combines a traveling block and a hook to ensure efficient and secure lifting, adhering to API 8C standards.
Key Features:
- High-Strength Steel Frame: The frame is constructed using high-strength steel material, providing durability and reliability in demanding drilling environments.
- Safety Device: The main hook is equipped with a safety device to enhance operational safety.
- Heat-Treated Sheave Grooves: The grooves undergo heat treatment, increasing surface hardness, wear resistance, and extending service life.
- Adjustable Brake System: The brake system is adjustable to 360ºC, ensuring precise control during operations.
Technical Specifications:
Hook Specifications:
| Model | Max. Hook Load (kN) | Ton | Main Hook Opening Size (mm/in) | Assistant Hook Diameter (mm/in) | Spring Stroke (mm/in) |
|---|---|---|---|---|---|
| DG90 | 900 | 100 | 155 / 6-1/16 | 80 / 3-1/8 | 180 / 7 |
| DG135 | 1350 | 150 | 165 / 6-1/2 | 90 / 3-1/2 | 200 / 8 |
| DG170 | 1700 | 200 | 180 / 7 | 100 / 4 | |
| DG225 | 2250 | 250 | 190 / 7-1/2 | 120 / 4-3/4 | |
| DG315 | 3150 | 350 | 220 / 8-5/8 | ||
| DG450 | 4500 | 500 | 238 / 9-3/8 | ||
| DG585 | 5850 | 650 |
Traveling Block Specifications:
| Model | Max. Hook Load (kN) | Ton | Sheave O.D. (mm/in) | Sheave Qty | Wire Rope Dia. (mm/in) |
| YC90 | 900 | 100 | 762 / 30 | 4 | 26 / 1 |
| YC135 | 1350 | 150 | 915 / 36 | 5 | 29 / 1 |
| YC170 | 1700 | 200 | 1120 / 44 | 6 | 32 / 1-1/8 |
| YC225 | 2250 | 250 | 1270 / 50 | 7 | 35 / 1-1/4 |
| YC315 | 3150 | 350 | 1524 / 60 | 38 / 1-3/8 | |
| YC450 | 4500 | 500 | 42 / 1-1/2 | ||
| YC585 | 5850 | 650 | 42 / 1-5/8 |
Design and Performance:
- Durable Housing: The housing assembly is crafted from thick-section steel plates for enhanced durability.
- Taut Wire Rope: The wire rope remains taut during hoisting and lowering operations, ensuring stable performance.
- Hardened Sheave Grooves: Grooves are treated with medium frequency induction hardening to extend service life.
- Reliable Bearings: Working sheaves are fitted with double-row conical roller bearings, individually lubricated for optimal performance.
- Interchangeability: The sheaves are interchangeable with corresponding crown blocks, ensuring versatility in use.
The hook block’s robust design and adherence to API 8C standards make it an indispensable tool for modern drilling operations.
FAQ for Hook Block
1. What is a hook block used for? The hook block is a lifting device used in drilling operations to lift and handle drill strings. It combines a traveling block and a hook to ensure safe and efficient lifting.
2. Are hook blocks compliant with API standards? Yes, all hook blocks conform to API 8C standards, ensuring reliability and compatibility with other oilfield equipment.
3. What materials are used to manufacture the hook block? The hook block is made from high-strength steel material for enhanced durability and performance in demanding conditions.
4. Does the hook block have safety features? Yes, the main hook is equipped with a safety device to enhance operational safety during lifting tasks.
5. What sizes of hook blocks are available? Hook blocks are available in various models, such as DG90, DG135, DG170, DG225, DG315, DG450, and DG585, with maximum hook load capacities ranging from 900 kN (100 tons) to 5850 kN (650 tons).
6. What are the specifications for the sheaves in the traveling block? The sheaves are made with heat-treated grooves to improve surface hardness, wear resistance, and service life. They are interchangeable with corresponding crown blocks and fitted with double-row conical roller bearings, each individually lubricated.
7. Can the brake system be adjusted? Yes, the brake system on the hook block can be adjusted up to 360°C for precise control.
8. What types of wire rope diameters are compatible with the hook block? The hook block is compatible with wire rope diameters ranging from 26 mm (1 inch) to 42 mm (1-5/8 inches), depending on the model.
9. How does the hook block ensure longevity? The sheave grooves are hardened using medium frequency induction to extend service life, and the housing assembly is made from thick-section steel plates for added durability.
10. Can the hook block be used with other equipment? Yes, the hook block is designed for compatibility with other wellsite equipment, including crown blocks and drilling systems.
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