Hinged Oilfield Drilling Tools Polished Surface Stop Collar API Casing

Stop Collar API Casing Hinged Stop Collars For Oilfield Drilling Equipment

Stop collar

Stop collar is used to hold centralizers or cement baskets on any position casing, which ensures the position of centralizers or cement basket to meet the design, the stop collars are available in two types hinges type,slip on type, the stop collars can be installed on casing to limit the axial movement of centralizers and cement baskets.

Usage

1. Fastening screw stop ring when use, first set into the casing ,and then using a wrench to tighten the screws.

2. Fixed screw type when use ,first set into the casing,and then insert screws,Type in with a hammer.

3. Snap fit stop ring, direct stop ring button on the casing,use pin lock, then knocked into the screw.

Hinged bolted stop collars

An economical collar suitable for sub-critical annular tolerances,available in the size range 4-1/2" to 20",it has a cross bolt design which makes it an efficient and user friendly device.

Hinged spiral nail stop collars

Available in the size rang 4-1/2"-20",this device can be in both upset and non-upset casing to provide maximum clearance during rotation. It has a grove in the middle into which a spiral nail can be driven for improved grip on the casing, the broader firmly grips the collar into position around the casing.

Hinged stop collars with set screw

Available in the size rang 4-1/2" to 20", this device has a high cost-utility ratio. This hinged collar with a row of set screw position easily and firmly around the casing.

Slip on stop collars with set screw

This slip-on set screw device is recommended for small hole operations,available in size rang 2-7/8" to 20"and is gripped by a row of screw, this is a heavy duty device.

Xi'an RIG– Global Provider of Integrated Petroleum Drilling Equipment Solutions‌

Xi'an RIG Oilfield Equipment Co., Ltd is a China-based supplier headquartered in Xi’an, Shaanxi Province, specializing in end-to-end drilling equipment solutions for international oil & gas drilling operators, service companies, and EPC contractors worldwide.
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The company offers a comprehensive range of API-compliant drilling equipment, including:

‌Drilling Rigs & Hoisting Systems‌: Petroleum Drilling Rigs, Workover Rigs, Top Drive, Drawworks, Clutches, Traveling Block, Hook
‌Well Control & Wellhead‌: Blowout Preventers (BOPs), Wellhead Equipment, Wellhead Tools
‌Mud & Cementing Systems‌: Mud Pumps, Solids Control Equipment, Cementing Units, Cementing Tools
‌Specialized Downhole & Completion Tools‌: Fracturing Pumps, Coiled Tubing Units, Downhole Tools, Perforating Guns, Wireline Tools
All products are manufactured to meet ‌API 6A, API 7K, and API 16A‌ international standards, ensuring operational safety and reliability under extreme downhole conditions.
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Xi'an RIG sources its equipment exclusively from China’s leading oilfield equipment manufacturers, including:‌BOMCO MACHINERY‌,‌LS HEAVY EQUIPMENT‌ ,‌HONGHUA GROUP,SJ PETROLEUM,RG PETRO-MACHINERY‌

This vertical integration ensures traceable quality, consistent performance, and rapid spare parts availability.
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With established presence across ‌Middle East, Africa,Latin America, Southeast Asia,and the CIS region‌, Xi'an RIG delivers:

Customized Equipment Configurations‌
‌24/7 Remote Technical Support & Diagnostics‌
‌Extended Warranty Terms‌ (up to 36 months on select equipment)
‌On-Site Installation & Operator Training‌
Driven by a commitment to ‌professionalism, accountability, and high value‌, Xi'an RIG is trusted by over 200 international clients as a reliable partner in energy infrastructure development.