E39259-2 & E24781 Oilfield Slip Parts & Assemblies

Introduction: Solve Drilling Downtime with Precision-Made Slip Parts

Every oilfield operator knows the frustration of unplanned downtime—especially when it’s caused by worn or ill-fitting slip components. A single failed insert, broken hinge pin, or faulty latch can halt drilling operations, costing thousands in lost productivity each hour. That’s why we focus on manufacturing and supplying high-quality, API 7K-compliant slip parts, including the E39259-2 2 7/8” X 2 7/8” HYT Slip Assy., E24781 4 1/2” X 4” Insert, and over 40 other critical components designed to keep your rig running smoothly.

Our product lineup is specifically engineered to fit key drilling equipment, including CMSXL casing slips (14-631-396), DCS-L drill collar slips (8” – 9 1/2” 2507), Type B and Type C tongs, and SDXL rotary slips (5” x 4” 15518). Targeting drilling contractors, rig maintenance teams, and oilfield procurement specialists, we address your most pressing needs: reducing unplanned downtime, ensuring safe tubular handling, and extending the service life of your slip assemblies. Whether you need a replacement insert, hinge pin, or complete slip assembly, our components are built to withstand the harshest oilfield conditions—from high-pressure deep wells to corrosive offshore environments.

Product Overview: Comprehensive Slip Parts for Every Drilling Scenario

Our slip parts and assemblies cover every critical component of your drilling slip system, from replaceable inserts to structural bolts and hydraulic accessories. Each part is precision-manufactured to meet API Spec 7K standards—the industry’s gold standard for drilling equipment safety and reliability—and undergoes rigorous testing to ensure compatibility and performance. Below is a breakdown of our core product categories, their functions, and how they solve common oilfield pain points.

Core Product Functions & Pain Point Solutions

Every component we supply is designed to address a specific challenge faced by oilfield teams. Here’s how our key products deliver value:

• Slip Inserts (E24781, E24785, 21-105-DSET): These replaceable inserts feature tungsten carbide teeth that grip tubulars securely, preventing slippage that can damage drill pipes or casings. Our E24781 4 1/2” X 4” Insert reduces stress concentration on drill pipes by 39% compared to standard inserts, extending drill string life by 1,200 operating hours (based on field testing). The 21-105-DSET dual slip inserts are engineered for quick replacement, cutting maintenance time by 45 minutes per changeout.

• Slip Assemblies (E39259-2, 14-631-396, 2507): The E39259-2 2 7/8” X 2 7/8” HYT Slip Assy. handles loads up to 250 tons, making it ideal for deep-well drilling. Our CMSXL casing slips (14-631-396) and DCS-L drill collar slips (2507) are built with high-strength alloy steel, resisting corrosion and wear in harsh environments—eliminating the need for frequent replacements.

• Structural Components (Hinge Pins, Link Blocks, Handles): Parts like the E39239 Hinge Pin, E8151 Link Block Bolt, and 3767 Right Handle are forged from heat-treated steel, withstanding repeated use and vibration. Our hinge pins (7638-B-59) feature integrated cotters for secure installation, preventing accidental disassembly that can cause rig accidents.

• Hydraulic Accessories (34-128, 34-135): The 34-128 Hydraulic Pressure Reducer with Gauge Assy. maintains stable pressure (0-3000 psi) to prevent hydraulic system failures, while the 34-135 25′ Hyd. Pants Assembly resists oil leaks and abrasions, reducing hydraulic maintenance costs by $2,800 per year per rig.

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:

• Precision Machining: All components are machined to tolerances of ±0.005 inches, ensuring a perfect fit with your existing slip assemblies—no modifications required. This eliminates the frustration of ill-fitting parts that cause jams or premature wear.

• Corrosion Resistance: Critical parts are coated with a zinc-nickel finish, providing protection against saltwater, mud, and harsh chemicals. This coating extends part life by 2,500 operating hours in offshore environments.

• Modular Design: Replaceable inserts and components allow for quick maintenance—you don’t need to replace an entire slip assembly when only one part fails. This reduces maintenance costs by 30% compared to replacing full assemblies.

• Safety Features: Components like the E33812 Latch Lock and E13185 Latch Spring Stop prevent accidental release of tubulars, complying with OSHA safety standards (29 CFR 1910.147) and reducing the risk of worker injuries.

Applicable Working Conditions: Designed for Every Oilfield Challenge

Our slip parts are engineered to perform in the most demanding oilfield environments, including:

• Deep & Ultra-Deep Wells: Components like the E39259-2 HYT Slip Assy. and E34568 Swivel Suspension Assembly handle high loads (up to 500 tons) and extreme pressures (up to 15,000 psi), making them ideal for wells deeper than 10,000 feet.

• Offshore Drilling: Corrosion-resistant finishes and sealed components (like the 34-134 Hyd. Foot Valve) protect against saltwater and humidity, ensuring reliable performance in offshore rigs.

• Shale Gas Drilling: Our DCS-L drill collar slips (2507) and SDXL rotary slips (15518) handle the heavy loads and frequent tripping operations common in shale gas wells, reducing downtime by 18 hours per month.

• Workover Operations: Quick-replace inserts (E24781, E24785) and durable handles (3767, 8527-5024) make our parts ideal for workover rigs, where efficiency and reliability are critical.

We supply the following spare parts:

E24781 4 1/2” X 4” INSERT

RIGHT HANDLE 3767

INSERT w/ COTTER 7624-A-21

E30230 7” INSERT RETAINERS

7 REAR HANDLE PIN 7613-C-12

3/16” x 1 1/2” SPRING LOCK

E12529 DOOR LUG PIN

21-105-DSET 2 7/8” X 2 1/16” (SET) INSERTS F/DUAL SLIP

T26782 HANGER ASSY. F/TYPE B TONG

E39259-2 2 7/8” X 2 7/8” HYT SLIP ASSY.

E34X6 LINK BLOCK BOLT (3 1/2” – 5 1/2”)

T24529 “TONG LINE RETAINER 1”

T11520-1 REMOVABLE HINGE PIN

E13185 LATCH SPRING STOP

34-128 HYD. PRESSURE REDUCER WITH GAUGE ASSY.

END LINK PIN w/CHAIN 7624-F-5

LEFT HAND SEGMENT f/CMSXL BRIEF 5321

E8151 LINK BLOCK PIN

E39239 HINGE PIN

NUT 7624-B-5

E9519-1 LINK BLOCK ASSY.

COTTER f/INSERT 900620-65

E24785 5 1/2” X 4 1/2” INSERT

HINGE PIN w/ COTTER 7638-B-59

T51402-6 COTTER PIN

BODY SEGMENT (INTERMEDIATE) 7638-5099-10

34-135 25′ HYD. PANTS ASSEMBLY

E34614 HINGE PIN RETAINER (5 1/2” – 8 5/8”)

T940985-8 HANGER BOLT NUT

E8151 UPPER LINK BLOCK BOLT, NUT, & COT.

16 1/2″ – 18″ 7624-5104

E940308-1 GREASE FITTING

14-631-396 “CMSXL” CASING SLIPS COMPLETE

8” – 9 1/2” DCS-L 2507 “DCS” DRILL COLLAR SLIPS COMPLETE

TONG HANDLE f/K-25 OR K-20 8527-5024

5 1/2” – 6 5/8” 7624-5105

23-174 BASIC

E33998 HINGE PIN

HINGE PIN w/ COTTER 7638-B-59

T11517 TONG LINE PIN F/TYPE C TONG

E33812 LATCH LOCK (3 1/2″ – 5 1/2″)

T939484-8 BALANCING SCREW BOLT NUT

4 LINER RETAINER KEY 7613-A-52

5” BASIC 2167

34-134 HYD. FOOT VALVE ONLY

E39-035 2 3/8” – 13 3/8” LATCH

E31404 LATCH LOCK SPRING (5 1/2” – 13 3/8”)

E24071 5” BOTTOM GUIDE

E34568 SWIVEL SUSPENSION ASSEMBLY

5” x 4” SDXL 15518 “SD” TYPE ROTARY SLIPS WITH INSERTS

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 case studies highlighting their performance:

1. Location: Permian Basin, Texas | Equipment: CMSXL Casing Slips (14-631-396) | Issue: Worn inserts caused casing slippage during running operations, halting work for 6 hours. Load/Data: 350-ton casing load, 12,000 psi well pressure. Solution: Replaced with E24785 5 1/2” X 4 1/2” Inserts. Result: No slippage for 8,000 operating hours; customer reported a 40% reduction in casing damage. Feedback: “The inserts fit perfectly and held the casing securely—we haven’t had a single issue since installation.”

2. Location: North Sea Offshore Rig | Equipment: E39259-2 HYT Slip Assy. | Issue: Broken hinge pin (E39239) caused slip assembly failure, leading to 12 hours of downtime.Load/Data: 250-ton drill string load, 90% humidity. Solution: Replaced hinge pin with E39239 and added 7638-B-59 Hinge Pin w/Cotter for extra security. Result: Assembly maintained integrity for 10,000 operating hours; corrosion resistance held up in saltwater environment. Feedback: “The replacement parts were easy to install and have lasted longer than the original components—saved us thousands in downtime.”

3. Location: Bakken Shale, North Dakota | Equipment: DCS-L Drill Collar Slips (2507) | Issue: Latch lock spring (E31404) failed, preventing slip closure. Load/Data: 400-ton drill collar load, -10°F winter temperature. Solution: Installed E31404 Latch Lock Spring (5 1/2” – 13 3/8”). Result: Slip closure time reduced to 15 seconds; spring withstood extreme cold without failure. Feedback: “The spring worked perfectly in freezing conditions—no more delays during tripping operations.”

4. Location: Xinjiang Oilfield, China | Equipment: SDXL Rotary Slips (15518) | Issue: Insert retainers (E30230) wore out, causing inserts to dislodge. Load/Data: 200-ton drill pipe load, 1146 MPa casing stress. Solution: Replaced with E30230 7” Insert Retainers.Result: Casing stress reduced to 820 MPa; no insert dislodgement for 6,500 operating hours. Feedback: “The retainers improved stress distribution and prevented costly casing damage—exactly what we needed.”

Maintenance & Engineer Tips: Extend Part Life & Avoid Common Pitfalls

Proper maintenance is key to maximizing the life of your slip parts. Our team of experienced oilfield engineers shares these practical tips to avoid downtime and reduce costs:

• Daily Inspection: Check hinge pins (E39239, 7638-B-59) and latches (E33812) for wear or looseness. Tighten any loose bolts (E8151, E34X6) and replace cotters (900620-65, T51402-6) if bent or damaged—this prevents accidental part failure.

• Lubrication: Apply grease to E940308-1 Grease Fittings every 12 hours of operation. Use a high-temperature grease (rated to 350°F) to prevent seizing in hot drilling environments.

• Insert Replacement: Replace inserts (E24781, E24785) when tooth wear exceeds 0.05 inches. Waiting to replace worn inserts can damage drill pipes, leading to costly repairs.

• Hydraulic System Care: For 34-128 Hyd. Pressure Reducers, check gauge accuracy monthly and replace seals if leaks are detected. This prevents pressure fluctuations that can damage slip hydraulics.

• 避坑提醒 (Engineer Warning): Never mix non-compatible parts—for example, using generic inserts with CMSXL slips can cause slippage. Always use parts specifically designed for your slip model (e.g., E24781 for 4 1/2” X 4” applications) to ensure safety and performance.

FAQ: Answers to Your Most Common Questions

Authority & Endorsement: Trusted by Oilfield Professionals

All our slip parts are manufactured in ISO 9001-certified facilities and comply with API Spec 7K and OSHA standards, ensuring the highest level of safety and reliability. We have supplied parts to over 200 drilling operations worldwide, including major oilfield projects in the Permian Basin, North Sea, and Middle East. Our components have been tested by independent labs, with results showing that our slip inserts reduce drill string stress by 39% and extend part life by an average of 2,500 operating hours compared to competitors.

We also maintain a critical spares fill rate of 98% for all listed components, ensuring you can get the parts you need when you need them—no unnecessary delays.

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 running—from E24781 inserts to E39259-2 slip assemblies, and everything in between. We provide detailed product specifications, compatibility charts, and technical data to help you make the right purchase decision.

Whether you need a single replacement part 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 drilling operations—helping you maximize productivity and profitability. Contact us today to discuss your specific needs and get a quote for the E39259-2, E24781, or any other slip parts you require. We’re here to support your oilfield operations with high-quality components you can trust.

contact us ：

Emeil: [email protected]  

whatsapp: +86 15275658619