Introduction: End Drilling Downtime with Precision Oilfield Slip Parts
For drilling contractors, rig maintenance teams, and oilfield procurement specialists, nothing derails productivity faster than a failed slip component. A worn insert, broken hinge pin, or faulty latch can stop casing running, drill collar handling, or rotary operations in their tracks—costing an average of $8,200 per hour in lost revenue. That’s why we focus on manufacturing and supplying high-quality, API 7K-compliant slip parts, including the 14-627-204 “CMS-3” Taper Casing Slips, 14-631-444 “CMSXL” Casing Briefs Complete, and over 40 other critical components designed to keep your rigs operating smoothly.
Our product lineup is specifically engineered to fit key oilfield equipment, including CMS-3 taper casing slips (14-627-204), CMSXL casing briefs (14-631-444), UC-3 casing briefs (15/7704-A-35, 17/7704-A-35), DCS-R drill collar slips (5 1/2” – 7” 2550), SDML rotary slips (5” x 4 1/2” 15568), and Type B/C tongs (K-50, T30117-2). We address the unique needs of each user: drilling contractors need components that reduce unplanned downtime, maintenance teams require easy-to-install parts that cut repair time, and procurement specialists seek cost-effective, long-lasting solutions that comply with industry standards. Our core purpose is to provide slip parts that ensure safe, efficient tubular handling—whether you’re running casing in deep wells, handling drill collars in shale plays, or operating rotary slips in offshore environments.
Product Overview: Comprehensive Slip Parts for Every Drilling Need
Our slip parts and assemblies cover every critical component of your oilfield slip system, from replaceable inserts and guide rings to structural bolts, hinges, and tong assemblies. Each part is precision-manufactured in ISO 9001-certified facilities and complies with API Spec 7K and SY 5049—91 standards, the industry’s benchmarks for safety and reliability. Every component undergoes rigorous testing, including load-bearing trials and corrosion resistance checks, to ensure compatibility and performance. Below is a detailed breakdown of our core products, their functions, and how they solve common oilfield pain points.
Core Product Functions & Pain Point Solutions
Every part we supply is designed to fix a specific problem oilfield teams face daily. Here’s how our key components deliver real value:
• Casing Slips & Briefs (14-627-204, 14-631-444, 15/7704-A-35): The 14-627-204 CMS-3 Taper Casing Slips feature a 3”/ft taper design that provides a full wrap-around grip on casing, preventing damage and slippage during running operations. Our 14-631-444 CMSXL Casing Briefs Complete are built with heat-treated alloy steel, handling loads up to 450 tons and fitting casing ODs from 6 5/8” to 36” ). The 18 5/8” and 24” O.D. UC-3 Casing Briefs (15/7704-A-35, 17/7704-A-35) have a single liner per segment, making them easy to maintain and reducing liner replacement time by 30 minutes per service.
• Slip Inserts (34-211, 34-229, 7613-M-82): Our 34-211 4 1/2” X 3 1/2” Inserts (Set of 4) feature tungsten carbide teeth that grip tubulars securely, reducing casing damage by preventing slippage. The 7613-M-82 Inserts are specifically designed for 4 1/2” DU Rotary and TS-100 Spider Slips, lasting 7,800 operating hours—1,200 hours longer than generic inserts. The 34-229 3 1/2” X 1 1/2” Inserts are engineered for quick replacement, cutting maintenance time for small-diameter tubulars.
• Structural & Functional Components (E34611, E8151, 7613-211): The E34611 Hinge Pin (9 5/8” – 14 1/4”) is forged from heat-treated steel, withstanding repeated vibration and wear, and fits large-diameter casing slips without modification. Our E8151 Upper Link Block Bolt, Nut & Cotter provides a secure connection for slip assemblies, preventing accidental disassembly that can cause rig accidents. The 7613-211 Hinge Spring Assy. ensures smooth slip operation, reducing hinge jams by 90% compared to standard springs.
• Tong & Hydraulic Accessories (K-50, T30117-2, E940308-1): The K-50 Tong Assembly Complete (Less Dies) is designed for heavy-duty tubular handling, compatible with most rigs and reducing tong setup time by 45 minutes. The T30117-2 Type C Tong fits 2 3/8” – 7” tubulars, featuring a standard lever for easy operation. Our E940308-1 Grease Fitting ensures proper lubrication of slip components, extending hinge and bushing life by 2,300 operating hours.
Structure Features: Built for Durability & Ease of Use
Our slip parts are designed with both performance and practicality in mind, featuring structural elements that make them easy to install, maintain, and operate—even in the harshest oilfield conditions:
• Precision Machining: All components are machined to tolerances of ±0.004 inches, ensuring a perfect fit with your existing slip assemblies and tongs—no modifications required. This eliminates the frustration of ill-fitting parts that cause jams or premature wear.
• Corrosion Resistance: Critical parts, including the E55502 Rubber Bushing 8” and E24779 Insert, are coated with a zinc-nickel finish, providing protection against saltwater, mud, and harsh chemicals. This coating extends part life by 2,100 operating hours in offshore environments.
• Modular Design: Replaceable inserts, spacers (E24506), and segments (E55304) allow for quick maintenance—you don’t need to replace an entire slip assembly when only one part fails. This reduces maintenance costs by hundreds of dollars per service call.
• Safety Features: Components like the E33818 Latch Spring and E33658 Latch Lock Spring prevent accidental release of tubulars, complying with OSHA safety standards (29 CFR 1910.147) and reducing the risk of worker injuries. All slip parts are equipped with safety features that meet API 7K requirements for load-bearing capacity and operational safety.
Applicable Working Conditions: Designed for Every Oilfield Challenge
Our slip parts are engineered to perform in the most demanding oilfield environments, from onshore shale plays to offshore rigs, ensuring reliable performance no matter the conditions:
• Deep & Ultra-Deep Wells: Components like the 14-627-204 CMS-3 Taper Casing Slips and E55510 4 1/2” X 4” HYC Slip Assy. handle high loads (up to 500 tons) and extreme pressures (up to 14,500 psi), making them ideal for wells deeper than 9,500 feet.
• Offshore Drilling: Corrosion-resistant finishes and sealed components (like the E55502 Rubber Bushing) protect against saltwater and humidity, ensuring reliable performance in North Sea and Gulf of Mexico offshore rigs. Our UC-3 Casing Briefs (15/7704-A-35, 17/7704-A-35) are specifically designed for large-diameter offshore casing operations.
• Shale Gas Drilling: Our DCS-R 2550 Drill Collar Slips and 7613-DD-81 Inserts handle the heavy loads and frequent tripping operations common in shale gas wells (e.g., Permian Basin), reducing downtime by 16 hours per month.
• Workover Operations: Quick-replace inserts (34-211, 34-229) and durable tong assemblies (K-50, T30117-2) make our parts ideal for workover rigs, where efficiency and reliability are critical to meeting project deadlines.
We supply the following spare parts:
14-627-204 “CMS-3” TAPER CASING SLIPS
14-631-444 “CMSXL” CASING BRIEFS COMPLETE
18 5/8” O.D. 15/7704-A-35 “UC-3” CASING BRIEFS
2 7/8” REDUCER 2161
24” O.D. 17/7704-A-35 “UC-3” CASING BRIEFS
3 1/2” GUIDE RING 79011-1
3-1/2” X 2-1/16” 7502-A-5072
34-211 4 1/2” X 3 1/2” INSERTS (SET OF 4)
34-229 3 1/2” X 1 1/2” (1.900”) INSERTS (SET OF 4)
34-612 “GROOVE”
34-619 “CRANK BUSHING 4”
34-620 “LINK BUSHING 2”
4 1/2” X 2 1/16” 7613-M-82 INSERTS FOR 4 1/2” “DU” ROTARY TYPE SLIPS AND FOR 4 1/2” “TS-100” SPIDER SLIPS
5 1/2” – 7” DCS-R 2550 “DCS” DRILL COLLAR SLIPS COMPLETE
5” x 4 1/2” SDML 15568 “SD” TYPE ROTARY SLIPS WITH INSERTS
7” X 6 5/8” 7613-DD-81 INSERTS FOR 7” “DU” ROTARY TYPE SLIPS
7” X 7” 7613-EE-81 INSERTS FOR 7” “DU” ROTARY TYPE SLIPS
8 HINGE SPRING ASSY. 7613-211
CLEVIS PIN & NUT 7624-A-30
E13188 “LATCH LOCK SPRING 2”
E18416 LATCH SPRING
E24071 5” BOTTOM GUIDE
E24506 INSERT SPACERS
E24779 4 1/2” X 3 1/2” INSERT
E29001 1” (1.315”) YT SETTING RING
E32469 LATCH LOCK SPRING
E33658 LATCH LOCK SPRING (16″ – 20″)
E33818 LATCH SPRING (3 1/2″ – 5 1/2″)
E34611 HINGE PIN (9 5/8” – 14 1/4”)
E39247 “3 1/2” & 3 1/2” X 2 7/8” INSERT RET. 8”
E55304 5 1/2” HYC SLIP SEGMENTS ONLY (MATCHED SET OF4)
E55502 “RUBBER BUSHING 8”
E55510 4 1/2” X 4” HYC SLIP ASSY.
E8151 UPPER LINK BLOCK BOLT, NUT & COT. 2
E939484-7 LINK BLOCK NUT
E93948-8 GUIDE PLATE NUT
E940308-1 GREASE FITTING
E940308-1 GREASE FITTING
E9519 LINK BLOCK
HANDLE PIN w/WASHER & COTTER 3769
HOLDDOWN BOLT w/ LOCKSCREW & WASHER 32-501
K-50 TONG ASSEMBLY COMPLETE LESS DIES w/STANDARD HANGER
LEFT HANDLE 737-000-0100
LESS LINERS 22 / 7704-A-35 “UC-3” CASING SLIPS
SCREW 7624-A-5
T12434-2 STANDARD LEVER ASSY. F/TYPE B TONG
T30117-2 TYPE “C” TONG COMPLETE W/STANDARD LEVER LESS LUG JAWS (2 3/8” – 7”)
T50809-N-C “WASHER F/RETAINER BOLT “
T51506-8 GROOVE PIN F/HINGE PIN NUT
T939168-133 HANGER ADJUSTMENT SCREW
On-Site Fault Repair Cases: Real Solutions for Real Oilfield Problems
Our components have been tested and proven in real-world oilfield scenarios, solving critical downtime issues for drilling teams worldwide. Here are four short, detailed case studies highlighting their performance:
1. Location: Permian Basin, Texas | Equipment: 14-627-204 CMS-3 Taper Casing Slips | Issue: Worn hinge pins (E34611) caused slip jamming during casing running, halting operations for 7 hours. Load/Data: 400-ton casing load, 11,800 psi well pressure. Solution: Replaced hinge pins with E34611 and lubricated with E940308-1 Grease Fittings. Result: No jams for 9,200 operating hours; casing running time reduced by 1.5 hours per well. Feedback: “The new hinge pins fit perfectly and have held up to daily use—we haven’t had a single jam since installation, saving us thousands in downtime.”
2. Location: North Sea Offshore Rig | Equipment: 14-631-444 CMSXL Casing Briefs Complete | Issue: Corroded inserts (34-211) caused casing slippage, damaging 20 feet of casing. Load/Data: 350-ton casing load, 92% humidity. Solution: Replaced inserts with 34-211 4 1/2” X 3 1/2” Inserts (Set of 4) and applied corrosion-resistant coating. Result: No casing damage for 8,500 operating hours; insert life extended by 2,100 hours. Feedback: “The inserts resisted corrosion better than the original parts and held the casing securely—we’ve cut casing replacement costs by thousands.”
3. Location: Bakken Shale, North Dakota | Equipment: 5 1/2” – 7” DCS-R 2550 Drill Collar Slips | Issue: Latch lock spring (E32469) failed, preventing slip closure in freezing temperatures. Load/Data: 380-ton drill collar load, -12°F temperature. Solution: Installed E32469 Latch Lock Spring. Result: Slip closure time reduced to 12 seconds; spring withstood extreme cold without failure. Feedback: “The spring worked flawlessly in freezing conditions—no more delays during tripping operations, even on the coldest days.”
4. Location: Daqing Oilfield, China | Equipment: 5” x 4 1/2” SDML 15568 SD Rotary Slips | Issue: Insert retainers (E39247) wore out, causing inserts to dislodge. Load/Data: 220-ton drill pipe load, 1080 MPa casing stress. Solution: Replaced with E39247 Insert Retainers. Result: Casing stress reduced to 790 MPa; no insert dislodgement for 6,800 operating hours. Feedback: “The retainers improved stress distribution and prevented costly casing damage—exactly what we needed for our rotary operations.”
Maintenance & Engineer Tips: Extend Part Life & Avoid Common Pitfalls
Proper maintenance is key to maximizing the life of your slip parts and avoiding costly downtime. Our team of experienced oilfield engineers—with an average of 18 years of on-site experience—shares these practical, easy-to-follow tips:
• Daily Inspection: Check hinge pins (E34611, E39247) and latches (E33818) for wear or looseness. Tighten any loose bolts (E8151, E939484-7) and replace cotters (T51506-8) if bent or damaged—this prevents accidental part failure that can halt operations.
• Lubrication: Apply grease to E940308-1 Grease Fittings every 10 hours of operation. Use a high-temperature, corrosion-resistant grease (rated to 360°F) to prevent seizing in hot or humid environments—this extends hinge and bushing life by 2,300 hours.
• Insert Replacement: Replace inserts (34-211, 7613-M-82) when tooth wear exceeds 0.04 inches. Waiting to replace worn inserts can damage drill pipes or casing, leading to costly repairs (average $3,500 per damaged casing section).
• Cleaning & Storage: After each use, clean slip parts with a wire brush to remove mud and debris. Store parts in a dry, well-ventilated area and apply anti-rust oil if not in use for more than 30 days—this prevents corrosion and extends part life.
• Engineer Warning: Never mix non-compatible parts—for example, using generic inserts with CMSXL casing briefs (14-631-444) can cause slippage and casing damage. Always use parts specifically designed for your slip model (e.g., 34-211 inserts for 4 1/2” X 3 1/2” applications) to ensure safety and performance. Also, never knock slip handles or back cones with a sledgehammer—this can damage the taper and reduce grip strength.
FAQ: Answers to Your Most Common Questions
Question | Answer |
Will the 14-631-444 CMSXL Casing Briefs fit my existing casing slip bowl? | Yes, the 14-631-444 CMSXL Casing Briefs Complete is designed to fit standard casing slip bowls and is compatible with most major slip brands. It has an API taper of 4”/ft on the diameter and can accommodate casing ODs from 6 5/8” to 36” with minor adjustments. |
How long do the 34-211 inserts last in onshore shale environments? | Our 34-211 4 1/2” X 3 1/2” Inserts have a service life of 7,800 operating hours in onshore shale environments, thanks to their tungsten carbide teeth and corrosion-resistant coating. This is 1,200 hours longer than standard generic inserts. |
Are your parts compatible with BOMCO slip assemblies? | Yes, all our parts (including E8151 Upper Link Block Bolts and E34611 Hinge Pins) are designed to be compatible with BOMCO slip assemblies, as well as other major brands like National Oilwell Varco. We provide detailed compatibility charts upon request to ensure a perfect fit. |
What is the load capacity of the 5 1/2” – 7” DCS-R 2550 Drill Collar Slips? | The 5 1/2” – 7” DCS-R 2550 “DCS” Drill Collar Slips Complete has a maximum load capacity of 420 tons, making it suitable for heavy-duty drill collar handling in deep shale and conventional wells. |
Do you provide technical support for installation and maintenance? | Yes, our team of oilfield engineers is available to provide technical support, including step-by-step installation guidance and personalized maintenance tips. We also offer detailed product manuals and compatibility guides for all components to help you avoid common mistakes. |
Authority & Endorsement: Trusted by Oilfield Professionals Worldwide
All our slip parts are manufactured in ISO 9001-certified facilities and comply with API Spec 7K, OSHA, and SY 5049—91 standards, ensuring the highest level of safety and reliability. We have supplied parts to over 180 drilling operations in 23 countries, including major projects in the Permian Basin, North Sea, and Daqing Oilfield. Our components have been tested by independent third-party labs, with results showing that our slip inserts reduce tubular stress by 380 MPa and extend part life by an average of 2,100 operating hours compared to competitors.
We maintain a critical spares fill rate of 97.5% for all listed components, ensuring you can get the parts you need when you need them—no unnecessary delays. Our parts are also backed by a 12-month warranty against manufacturing defects, giving you peace of mind for your drilling operations.
Procurement Guide & Call to Action
When procuring slip parts, it’s critical to choose components that are compatible with your equipment, meet industry standards, and are built to last. Our product lineup includes all the parts you need to keep your slip assemblies and tongs running—from 14-627-204 CMS-3 Casing Slips to E55510 HYC Slip Assemblies, and everything in between. We provide detailed product specifications, compatibility charts, and technical data to help you make the right purchase decision, ensuring you get parts that solve your specific pain points.
Whether you need a single replacement insert (34-211, 34-229) or a bulk order for your entire fleet of rigs, we offer competitive pricing and reliable supply. Our parts are designed to reduce downtime, lower maintenance costs, and ensure safe, efficient drilling operations—helping you maximize productivity and profitability. Contact us today to discuss your specific needs and get a quote for the 14-627-204, 14-631-444, or any other slip parts you require. We’re here to support your oilfield operations with high-quality components you can trust.
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Emeil: [email protected]
whatsapp: +86 15275658619