Product Introduction

The API Crown Block is one of the most critical components in a drilling rig hoisting system, designed to support heavy hook loads while ensuring smooth wire rope movement and safe lifting operations.

Our TC Series Crown Blocks are manufactured for onshore drilling, offshore platforms, geothermal drilling, mining rigs and workover operations. Each unit features high-strength alloy steel construction, precision-machined sheaves, heavy-duty bearings and optimized lubrication systems to maximize service life under continuous heavy-duty operation.

Available from TC90 to TC675, these crown blocks provide reliable performance for drilling depths ranging from shallow wells to ultra-deep drilling projects exceeding 8,000 meters.

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Product Features

Heavy-Duty Structural Design

Manufactured from high-strength alloy steel with reinforced frame construction for superior load capacity and fatigue resistance.

Precision Sheave System

High-hardness sheaves with optimized groove profiles reduce wire rope wear while improving drilling efficiency.

Advanced Bearing Protection

Heavy-duty sealed bearings and multi-stage sealing systems effectively prevent mud, dust and moisture contamination.

Optimized Lubrication

Integrated lubrication channels ensure consistent grease distribution and extend bearing service life.

Corrosion Resistant Finish

Protective coating system suitable for offshore, desert and high-humidity drilling environments.

Multiple Capacity Options

Available in TC90, TC158, TC170, TC225, TC315, TC450, TC585 and TC675 models.

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Technical Specifications

Model	Rated Load	Sheaves	Application
TC90	900 kN	4	Water Well & Workover
TC158	1580 kN	5	Light Drilling
TC170	1700 kN	5	Medium Drilling
TC225	2250 kN	6	Deep Drilling
TC315	3150 kN	7	HPHT Wells
TC450	4500 kN	8	Offshore Drilling
TC585	5850 kN	9	Deepwater Projects
TC675	6750 kN	10	Ultra Deep Drilling

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Available Models

• TC90 Crown Block
• TC158 Crown Block
• TC170 Crown Block
• TC225 Crown Block
• TC315 Crown Block
• TC450 Crown Block
• TC585 Crown Block
• TC675 Crown Block

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Applications

Our crown blocks are widely used for:

• Oil & Gas Drilling Rigs
• Offshore Drilling Platforms
• Land Drilling Rigs
• Geothermal Drilling
• Mining Exploration
• Workover Rigs
• Water Well Drilling
• HPHT Drilling Projects

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Why Choose TSS-TUP

• API standard manufacturing
• High-strength alloy steel construction
• Precision-machined sheaves
• Heavy-duty bearing systems
• Long service life
• Fast global delivery
• Complete spare parts support
• OEM & customized manufacturing
• Strict quality inspection
• Technical support for worldwide drilling projects

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OEM & Custom Manufacturing

TSS-TUP provides complete OEM and custom manufacturing services for drilling rig crown blocks, including:

• Custom load capacities
• Customized sheave quantity
• Special coating systems
• Offshore corrosion protection
• Special material selection
• Drawing-based manufacturing
• Sample-based production
• Replacement for discontinued equipment

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Quality Control

Every crown block undergoes strict quality inspection before delivery, including:

• Material verification
• Dimensional inspection
• Welding inspection
• Load testing
• Bearing inspection
• Dynamic balance testing
• Surface treatment inspection
• Final factory inspection

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FAQ

What standards do your crown blocks comply with?

Our crown blocks are manufactured according to applicable API standards and industry quality requirements.

What load capacities are available?

Models range from 900 kN to 6750 kN.

Can you manufacture OEM replacement crown blocks?

Yes. We provide OEM replacement and custom-manufactured crown blocks based on drawings or samples.

Are spare parts available?

Yes. We supply sheaves, bearings, shafts, lubrication components, seal kits and other replacement parts.

Can your crown blocks be used offshore?

Yes. Offshore corrosion-resistant configurations are available upon request.

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Request a Quote

Looking for reliable API Crown Blocks or replacement hoisting system components?

Contact TSS-TUP today for technical support, competitive pricing and fast worldwide delivery. Our engineering team can recommend the most suitable crown block solution based on your drilling rig specifications.

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