Traveling Blocks

Technical Specifications

Applications

SJ Petro's traveling blocks are deployed across a broad spectrum of oilfield operations:

• Oil & Gas Well Drilling – Complete hoisting for drilling operations from 1,000m to 9,000m depth. The traveling block provides the lifting power to raise and lower the drill string, change bits, and run casing.

• Workover Operations – Raising and lowering tubing, sucker rods, and downhole tools for well servicing and maintenance. Traveling blocks are essential components of XJ series workover rigs.

• Casing Running – The hoisting system supports the weight of casing strings during running and cementing operations.

• Fishing Operations – Precision retrieval of lost tools and equipment from the wellbore requires reliable, controllable hoisting.

• Offshore Platform Operations – Traveling blocks for offshore drilling and workover rigs, built to marine-grade standards.

• Desert & Extreme Environment Operations – Specialized configurations for high-temperature, high-cold, and harsh environment conditions.

Product Types

SJ Petro offers traveling blocks in a variety of configurations:

By Series:

1. SYG Series Traveling Hook Blocks – Integral design traveling block with hook, available in SYG110, SYG150, SYG170, and SYG225 models.

2. YC Series Traveling Blocks – Available in YC225, YC315, YCF315, YC450, YC585, and YC675 models.

3. YG Series Traveling Blocks – Additional series for various rig configurations.

By Rig Type:

4. Drilling Rig Traveling Blocks – Heavy-duty configurations for 1,000m to 9,000m drilling operations

5. Workover Rig Traveling Blocks – Configurations for light to heavy workover operations

By Configuration:

6. Standard Traveling Blocks – Individual traveling block units

7. Integral Traveling Hook Blocks – Traveling block and hook combined in a single unit, reducing overall length

8. Custom Configurations – Designed to customer specifications

OEM & Customization Solutions

Every operation presents unique challenges, and SJ Petro's engineering team delivers tailored solutions through comprehensive OEM and customization capabilities:

• Custom Configuration – Choose from SYG, YC, YG, or custom series based on your rig and load requirements

• Hook Load Optimization – Select traveling blocks from 1,100 kN to 6,750 kN capacity

• Wireline Diameter Selection – Choose from 26 mm, 29 mm, 32 mm, 35 mm, 38 mm, 42 mm, or 45 mm based on your operational requirements

• Integral Design Options – Integral traveling block and hook design for reduced overall length and increased traveling space

• Sheave Configuration – Select from 3 to 7 sheaves based on your traveling system requirements

• API Certification – All traveling blocks are manufactured in accordance with API Spec 8C

• Material Selection – Specify high-strength alloy steel for extreme load applications

• Component Integration – Complete hoisting system packages including traveling block, crown block, hook, and wire rope

• Retrofit Solutions – Upgrade existing rigs with new traveling block components

Why Choose SJ Petro?

World's Famous Manufacturing Base

SJ Petro is the world’s famous manufacturing base for petroleum drilling and production equipment. As one of China Top 500 manufacturers, we rank 2nd on the list of China Top 10 Petroleum Drilling and Production Equipment Manufacturers.

Over 40 Years of Equipment Expertise

SJ Petro began manufacturing petroleum drilling and production equipment in 1980. With more than 40 years of continuous engineering and manufacturing experience, we have mastered the design and production of complete rig systems and components including crown blocks, traveling blocks, hooks, swivels, rotary tables, drawworks, and mud pumps.

API-Certified Quality

SJ Petro holds API certifications including API 4F, 7K, 8C, 6A and 16C. Our traveling blocks are manufactured in accordance with API Spec 8C. The company also maintains ISO9001 and HSE management system certifications.

Complete In-House Manufacturing

SJ Petro has a complete production facility including welding, forging, casting, heat-treatment, machining, assembling and commissioning, with more than 2,100 sets of precision equipment. We produce 200 models of products falling in four major categories and 12 series.

National Enterprise Technology Center

SJ Petro has been recognized as a "national enterprise technology center” and a national manufacturing single championship demonstration enterprise. The company has obtained more than 200 national patents.

Proven Global Track Record

SJ Petro's rigs and components have been deployed in more than 10 countries worldwide, including South America, Western Africa, and the Middle East.

One-Stop Solution Provider

Beyond manufacturing, we offer equipment inspection, testing, and major overhaul services. From initial design to field service and spare parts supply, SJ Petro delivers complete oil and gas exploration and production equipment solutions.

Frequently Asked Questions

Q: What is a traveling block?

A: A traveling block is the moving component of a drilling rig's hoisting system. It travels up and down the mast, connected to the hook, swivel, and drill string. Together with the crown block and wire rope drill line, it forms a block and tackle system that multiplies the lifting force of the drawworks.

Q: What is the difference between a traveling block and a crown block?

A: The crown block is positioned at the top of the mast and remains stationary. The traveling block moves up and down the mast and is connected to the hook. Together, they form the complete sheave system that guides the wire rope drill line.

Q: What is the advantage of the integral traveling block and hook design?

A: The integral design shortens the length between the traveling block and hook, making the best use of the traveling space for the lifting system. This provides increased vertical travel, reduced risk of interference, and simplified maintenance.

Q: What traveling block models does SJ Petro offer?

A: SJ Petro offers the SYG Series (SYG110, SYG150, SYG170, SYG225) with capacities from 1,100 kN to 2,250 kN, and the YC Series (YC225, YC315, YCF315, YC450, YC585, YC675) with capacities from 2,250 kN to 6,750 kN.

Q: What is the maximum hook load of SJ Petro traveling blocks?

A: SJ Petro traveling blocks cover maximum hook loads from 1,100 kN to 6,750 kN (247,500 lbs to 1,517,000 lbs).

Q: What wireline diameters are available?

A: SJ Petro traveling blocks are available with wireline diameters from 26 mm to 45 mm, depending on the model and configuration.

Q: Are SJ Petro traveling blocks API certified?

A: Yes. SJ Petro's traveling blocks are manufactured in accordance with API Spec 8C (Drilling and Production Hoisting Equipment).The company also holds API 4F, 7K, 6A, and 16C certifications.

Q: Can traveling blocks be used on both drilling rigs and workover rigs?

A: Yes. SJ Petro's traveling blocks are designed for use with both drilling rigs and workover rigs, with reliable quality and large versatility.

Q: Do you offer OEM or customized solutions?

A: Absolutely. We offer comprehensive customization including traveling block series, hook load capacity, wireline diameter, sheave configuration, integral design options, and retrofit solutions for existing rigs.

Q: What is your manufacturing capacity?

A: SJ Petro has a complete production facility with more than 2,100 sets of precision equipment. We produce 200 models of products across four major categories and 12 series.

Q: Do you provide after-sales support and spare parts?

A: Yes. We offer comprehensive after-sales support including spare parts supply, equipment inspection, testing, and major overhaul services.

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