Alloy Steel Lifting Cap API For Oil Gas Drilling Tools With Thread Surface Protection
API Certified Alloy Steel Lifting Cap For Oil And Gas Drilling Tools With Thread Surface Protection And Special Heat Treatment In Wooden Box
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Product overview:
The Lifting Cap produced and sold by our company Huichi Petro is a lifting device installed on the top of the pipe or drill tool in oil and gas drilling operations. It is a core tool for safely lifting tubular equipment such as drill pipes, tubing casings and drill tools. It can withstand huge tension and weight, and through standardized threaded interfaces and high-strength alloy materials, it ensures the stability and safety of the drill string during the process of lifting and drilling. It adopts an integral forging process, complies with API specifications, and is suitable for the harsh working conditions of deep wells on land, offshore platforms and complex formations.
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Core functions:
- High load bearing: The maximum static load is 450 tons, suitable for 3-1/2" to 13-5/8" pipe diameters, ensuring the safe lifting of tubular equipment such as heavy drilling tools.
- Quick connection: API standard threads (such as NC50, NC56, 7-5/8REG, etc.), support seamless integration with elevators and top drive systems, and complete disassembly and assembly within 10 seconds.
- Extreme environment resistance: high-quality alloy steel material + surface phosphating treatment, resistant to hydrogen sulfide corrosion, mud scouring and high temperature and high pressure (-30℃ to 150℃) environment.
- Anti-locking design: self-locking structure prevents accidental falling off and ensures safe wellhead operation.
- Precise adaptability: Our Lifting Cap is precisely designed and manufactured for pipes and drilling tools of different specifications and models, and can be closely matched with various common pipes and drilling tools.
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Technical parameters:
• Material:
4145H/4140 alloy steel, quenched and tempered heat treatment hardness HRC30-35, tensile strength ≥965 MPa.
• Adaptive specifications:
o Pipe diameter range: 2-3/8" to 13-5/8" (API standard and non-standard customization).
o Thread type:
NC series (NC23 to NC61), REG series (2-3/8REG to 7-5/8REG).
• Certification standards:
API 7K, ISO 14693, optional DNV/GL certification.
| Thread | Outer Diameter (mm) | Length (mm) | Thread | Outer Diameter (mm) | Length (mm) |
| 7 5/8 REG Pin | 210 | 290 | 7 5/8 REG Box | 230 | 290 |
| 6 5/8 REG Pin | 190 | 280 | 6 5/8 REG Box | 200 | 280 |
| NC50 Pin | 155 | 270 | NC50 Box | 160 | 260 |
| NC46 Pin | 150 | 270 | NC46 Box | 160 | 260 |
| NC38 Pin | 115 | 260 | NC38 Box | 120 | 270 |
| NC31 Pin | 100 | 210 | NC31 Box | 120 | 220 |
| 2 3/8 REG Pin | 80 | 190 | 2 3/8 REG Box | 110 | 200 |
| NC26 Pin | 89 | 200 | NC26 Box | 110 | 200 |
| 3 1/2 REG Pin | 110 | 260 | 3 1/2 REG Box | 130 | 270 |
| 4 1/2 REG Pin | 145 | 270 | 4 1/2 REG Box | 160 | 260 |
| 2 7/8 EUE Pin | 80 | 220 | 2 7/8 EUE Box | 80 | 220 |
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Applicable scenarios:
The Lifting Cap produced and sold by our company Huichi petro is widely used in oilfield drilling/offshore drilling operations, especially in situations where tubular equipment such as drill pipes and oil pipes need to be frequently lifted and connected.
- Drill string tripping operations for ultra-deep wells on land and shale gas horizontal wells
- Offshore platform casing assembly and well repair operations
- Automated drilling system matching for sulfur-containing formations and high-temperature and high-pressure wells
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Product advantages:
- Zero accident guarantee: forging process + non-destructive testing (UT/MPI), passed extreme load test (1.5 times the design value).
- Ultra-long life: surface phosphating treatment + protective oil coating, wear resistance is 50% higher than traditional products.
- Global compatibility: compatible with mainstream drilling rig models (such as ZJ50, National) and elevator systems.
- Customized service: support non-standard size, anti-sulfur material and special design for low temperature environment.
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After-sales service:
Choosing our Lifting Cap means choosing an efficient, safe and reliable lifting solution. We will wholeheartedly provide you with high-quality products and perfect after-sales service:
- Global 48-hour emergency response, providing direct delivery of spare parts and on-site technical support.
- Warranty period of 6-12 months, free replacement due to material problems, and attached with a third-party inspection report.
- Free drilling tool lifting solution optimization and safe operation training.
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Contact us:
Get the API lifting cap technical manual and customized quotation now to inject safe and efficient lifting power into your drilling operations!
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Product display:
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Product package:
Product packaging: iron box or iron frame, wooden pallet, wooden box, bulk or customized according to customer requirements.
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Product detection:
100% inspection will be carried out before shipment, and video image data and inspection reports will be provided.
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Accepted delivery terms:
FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES.
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About HuiChi (HC) petro:
Shandong Huichi Industry & Trade is a professional supplier of drilling equipment for the oil and gas industry. We are committed to providing the best products and services to customers around the world.
We HuiChi (HC) Petro always regard our customers as our partners and aim to achieve long-term cooperation value. Our Huichi products cover different fields such as oil fields, water wells, HDD, etc.
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Why choose HuiChi (HC) petro?
One-stop drilling equipment supply;
Employee engineers have more than 10 years of experience in supplying drilling equipment;
More than 10 people engaged in export business;
More than 40 partner countries and regions;
More than 200 customers having close cooperative relationships;
More than 250+ partner factories as suppliers.
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Focus on well drilling equipment , we have been working hard and hope to become your most professional oil & gas equipment supplier and the best partner!
Sales Manager: Cherry Chi
Email: cherry@huichipetro.com
Mob/WhatsApp/We chat: +86 15553820372
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.



