K-50 TONG ASSEMBLY & 7624-5105 Rotary Slips

Introduction: Stop Costly Downtime with Precision-Fit Drilling Spare Parts

For drilling contractors, rig maintenance teams, and oilfield service providers, unplanned downtime is more than a hassle—it’s a financial drain that can derail projects and eat into profits. A single faulty hinge pin, worn slip insert, or broken tong component can shut down your rig for hours, costing an average of $13,100 per hour. Generic, ill-fitting spare parts only make matters worse: they fail prematurely, damage expensive equipment, and force you to rework installations—wasting time and money. Our comprehensive range of oilfield drilling spare parts, highlighted by the K-50 TONG ASSEMBLY COMPLETE LESS DIES w/ROLLOVER HANGER, 17 1/2″–19″ 7624-5105 Rotary Slips, DCS-R 2552 & DCS-L 2508 Drill Collar Slips, and 7613-G-81 Inserts, is engineered to eliminate these headaches. Designed to seamlessly fit K-50 tongs, DU Rotary Type Slips, TS-100 Spider Slips, DCS Drill Collar Slips, and ZJ series rigs (ZJ 30-ZJ 70), our parts solve the most common field pain points: incompatible components that waste labor, premature wear that increases replacement costs, and hard-to-source parts that extend downtime. Backed by 23 years of supplying high-quality parts to 4,000+ oilfield sites across 52 countries, all our products comply with API 7K, API 6A, and ISO 9001:2015 standards—each component passes 22 rigorous quality inspections, including material traceability and load testing. Our 7613-FF-81 Inserts last 1,600+ drilling hours, outperforming generic alternatives by 750 hours, while our K-50 TONG ASSEMBLY handles 95,000 ft-lbs of torque without failure—matching the performance of OEM tong assemblies at a fraction of the cost. We also incorporate industry-proven design features, such as heat-treated slip components to enhance wear resistance, a critical detail for extending part lifespan in harsh drilling environments.

Core Purpose & Target User Needs

Our spare parts serve one critical purpose: to keep your drilling rigs, tongs, and handling tools operating safely, efficiently, and without costly interruptions. We tailor our products to three key user groups: drilling contractors managing onshore/offshore rigs who need reliable parts to meet tight project timelines and avoid financial losses from downtime; rig maintenance technicians tasked with minimizing repair time, reducing labor costs, and ensuring equipment safety (including proper fault排查 as outlined in industry best practices); and procurement teams seeking cost-effective, high-quality replacements that fit seamlessly with existing equipment (no modifications needed). We directly address the daily frustrations you face: parts that don’t fit (requiring costly rework or risking equipment damage), components that wear out too quickly (forcing frequent replacements), and delays in sourcing critical parts (extending downtime). With our parts, you’ll avoid the average $78,600 loss from a single 6-hour unplanned shutdown and keep your operations running smoothly—while adhering to the practical maintenance guidelines that reduce fault rates in the field.

Product Overview

Product Introduction

Our product lineup covers every essential spare part your drilling operation needs, from tong assemblies and rotary slips to hinge pins, inserts, and setting rings. Key models include the K-50 TONG ASSEMBLY COMPLETE LESS DIES w/ROLLOVER HANGER (for secure pipe makeup/breakout, compatible with K-50 tongs), 17 1/2″–19″ 7624-5105 Rotary Slips (for reliable drill pipe gripping), DCS-R 2552 (4 1/2”–6”) and DCS-L 2508 (9 1/4”–11 1/4”) “DCS” Drill Collar Slips Complete (for heavy drill collar handling), 7613-G-81 Inserts (5 1/2” X 5” for 5 1/2” “DU” Rotary Type Slips and 5 1/2” “TS-100” Slips), and 34-231 Inserts (SET OF 4, 3 1/2” X 1” for secure pipe hold). All parts are manufactured using high-strength alloy steel (heat-treated to 42-46 HRC), corrosion-resistant rubber compounds, and precision-machined components—following API 7K standards for drilling equipment safety and durability, including the wear-resistant hardening and tempering processes recommended for slip components. Our exclusive material testing shows that our 34-207 Inserts (SET OF 4) handle 88,000 lbs of clamping force without slipping, while our HINGE PIN f/DCSS 3769 resists rust and corrosion for 2,300+ hours in offshore environments—far longer than the 700-hour lifespan of generic hinge pins. Every part is designed to match OEM specifications, ensuring seamless compatibility with your existing tools and rigs, including HT series tongs (HT-100, HT-65) and Varco BJ-compatible equipment.

Function Description

Each part in our lineup plays a vital role in keeping your rig and handling tools operational, solving specific pain points you face in the field—many of which align with common fault scenarios outlined in industry maintenance guides: K-50 TONG ASSEMBLY provides a complete, ready-to-install solution for pipe makeup/breakout, eliminating the need to source individual tong components and reducing installation time. 7624-5105 Rotary Slips grip drill pipes tightly, avoiding slippage that could damage the drill string or cause well control issues—addressing the most common slip-related故障 highlighted in field reports. DCS-R 2552 and DCS-L 2508 Drill Collar Slips secure heavy drill collars (up to 125,000 lbs) without slipping, solving the risk of collar damage or well bore issues. 7613-G-81 and 7613-FF-81 Inserts restore grip to DU Rotary Slips and TS-100 Spider Slips, preventing pipe slippage and reducing the need for frequent replacements—directly addressing the top cause of slip failure: worn or dirty inserts. Hinge pins (3769, 7638-B-59) enable smooth movement of tong and slip components, reducing friction and wear—avoiding the seized or misaligned hinges that cause equipment jams. Latch components (E33634, E11766) keep tongs and slips locked in place, preventing dangerous equipment malfunctions that can lead to injuries or downtime. Every part works together to create a reliable, low-maintenance system that keeps your rig running, while aligning with the fault排查 priorities of一线 maintenance teams.

Structural Characteristics

Our parts are built to withstand the harshest oilfield conditions, with structural features that address real-world wear and tear—incorporating lessons from industry fault data: All metal components (including K-50 TONG ASSEMBLY and 7624-5105 Rotary Slips) are heat-treated to a hardness of 42-46 HRC, making them resistant to bending, wear, and impact—solving the problem of premature part failure and aligning with the wear-resistant design standards for slip components. Our DCS-R 2552 and DCS-L 2508 Drill Collar Slips feature a multi-segment design with precision-machined surfaces (tolerance of ±0.001 inches), ensuring a perfect fit and secure grip—preventing the “歪夹” (skewed clamping) issue that leads to drill collar damage and secondary equipment wear. Inserts (34-231, 7613-G-81) use a proprietary rubber compound that offers 30% better grip than standard inserts, even in high-pressure, high-mud environments—addressing the root cause of slip打滑 (slippage) highlighted in field maintenance guides. Hinge pins (3769, 7638-B-59) are zinc-plated to resist rust and corrosion, even in saltwater offshore environments. The modular design of all our parts makes installation quick and easy; most components (like T53201 Grease Fitting or E24075 Guide Plate Screw) can be replaced in under 18 minutes by a single technician, reducing labor costs and downtime. We also incorporate robust latch springs (E11766) and lockwashers (E939354-6) to prevent component loosening, a common cause of tong and slip failure in high-vibration environments.

Applicable Working Conditions

Our spare parts are engineered to perform in the most challenging oilfield environments, including: onshore deep wells (temperatures up to 220°F, pressures up to 17,000 psi), offshore semi-submersible rigs (saltwater corrosion, high winds, and constant vibration), shale gas drilling sites (continuous high-torque operations), and acidic gas fields (H2S exposure). They are compatible with K-50 tongs, DU Rotary Type Slips, TS-100 Spider Slips, DCS Drill Collar Slips, ZJ series rigs (ZJ 30-ZJ 70), and HT series tongs (HT-100, HT-65). Whether you’re drilling in the Permian Basin’s arid deserts, the North Sea’s rough waters, the Middle East’s high-temperature fields, or Canada’s cold shale plays, our parts will maintain performance and reliability. Our LESS LINERS 19/7704-A-35 “UC-3” Casing Slips handle large casing diameters, making them ideal for deep offshore wells, while our T200665 12—15 LUG JAW ASSEMBLY fits high-torque tongs used in heavy pipe handling, aligning with the torque capacity requirements of HT series tongs (10,000–200,000 ft-lbs).

Maintenance & Care Recommendations

To maximize the service life of our parts and avoid costly mistakes, our senior oilfield engineers (with 30+ years of on-site experience, including expertise in fault排查 as outlined in industry guides) recommend these practical tips: Inspect K-50 TONG ASSEMBLY every 160 drilling hours for signs of wear or loose components—tighten hinge pins and bolts if needed, and replace the rollover hanger if it shows signs of bending (a common mistake that leads to tong instability). Clean slip inserts (34-231, 7613-G-81) after each use with a non-abrasive cleaner to remove drilling mud and debris, which can reduce grip and cause premature wear—following the top priority of field maintenance: keeping slip surfaces clean to prevent打滑 (slippage). Lubricate hinge pins (3769, 7638-B-59) and grease fittings (T53201) with high-temperature grease every 150 hours to prevent friction and seizing—avoid using generic grease, which breaks down in high temperatures and causes component failure, similar to the lubrication best practices for夹持器 (clamp) components. Store LESS LINERS 10/7704-A-35 “UC-3” Casing Slips in a dry, clean area when not in use to prevent corrosion of the metal segments. For offshore applications, apply a corrosion-resistant coating to all metal parts every 4 months to protect against saltwater damage. Never reuse E939354-6 Lockwashers—they are designed for one-time use, and reusing them can lead to component loosening and equipment failure, a common oversight in field maintenance that leads to costly downtime.

We supply the following spare parts:

HINGE PIN f/DCSS 3769

34-231 3 1/2” X 1” (1.315”) INSERTS (SET OF 4)

5 1/2” X 5” 7613-G-81 INSERTS FOR 5 1/2” “DU” ROTARY TYPE SLIPS AND 5 1/2” “TS-100” SLIPS

RIGHT HANDLE 737-000-0300

HANDLE 7638-A-78

3 FRONT HANDLE 7613-A-157

21-106-D 2 7/8” X 1 1/2” (1.900”) INSERT F/DUAL SLIP

E33634 LATCH ( 16″ – 20″)

E939354-6 “LOCKWASHER 4”

4 1/2” – 6” DCS-R 2552 “DCS” DRILL COLLAR SLIPS COMPLETE

E11766 LATCH SPRING

E24773 2 7/8” X 2 7/8” INSERT

9 1/4” – 11 1/4” DCS-L 2508 “DCS” DRILL COLLAR SLIPS COMPLETE

T200665 12 — 15 LUG JAW ASSEMBLY

E30209 4” SETTING PLATE

34-207 3 1/2” X 2 3/8” INSERTS (SET OF 4)

K-50 TONG ASSEMBLY COMPLETE LESS DIES w/ROLLOVER HANGER

34-614 DOOR PIN W/CHAIN

TONG HANDLE PIN

E39214-2 2 7/8” HYT SETTING RING

ROLLOVER BLOCK 8527-5038-03

E8145-2 LOWER LINK BLOCK BOLT & NUT & COT.

E8150 LINK BLOCK NUT

E34911 “LATCH PIN RETAINER 2”

TONG DIE SCREW

LESS LINERS 10/7704-A-35 “UC-3” CASING SLIPS

21-108-DSET 2 7/8” X 1” (1.315” SET) INSERTS F/DUAL SLIP

E15101 LATCH LOCK BOLT

T11522 HINGE PIN NUT

HINGE PIN w/ COTTER 7638-B-59

T53201 GREASE FITTING

7” X 4 1/2” 7613-W-81 INSERTS FOR 7” “DU” ROTARY TYPE SLIPS

E28821 2” YT SETTING RING

E29359 USE P/N E939099-65

3-1/2” X 1” 7502-A-5076

LIFTING CLEVIS COMPLETE 7624-29

E29259-1 2 7/8” X 3/4” (1.050”) INSERT

E8151 UPPER LINK BLOCK BOLT, NUT & COT.

17 1/2″ – 19″ 7624-5105

E33985 HINGE PIN ( 11 3/4” – 13 3/8”)

E24075 GUIDE PLATE SCREW w/NUT

LESS LINERS 19/7704-A-35 “UC-3” CASING SLIPS

E55303 4 1/2” HYC SLIP SEGMENTS ONLY (MATCHED SET OF 4)

E24076 SLIP BOLT

E27811 1 1/2” (1.900”) YT SETTING RING

4 1/2” X 4” 7613-FF-81 INSERTS FOR 4 1/2” “DU” ROTARY TYPE SLIPS AND FOR 4 1/2” “TS-100” SPIDER SLIPS

LATCH HANDLE 7502-A-214

T13799-1 9 5/8 — 10 3/4 HINGE & LUG JAW ASSEMBLY

K-50 HANDLE JAW

DRIVE PIN WASHER 4 32-506

On-Site Fault Repair Cases

These real-world cases from our customers show how our parts solve critical drilling issues, reduce downtime, and save money—aligning with common fault scenarios and solutions outlined in industry guides:

1. Permian Basin, Texas, USA: A drilling contractor using K-50 tongs experienced a K-50 TONG ASSEMBLY failure (generic assembly cracked under 80,000 ft-lbs of torque) while making up pipe on a 14,500-foot well with a load of 980,000 lbs. Downtime was costing $2,000 per hour. We supplied the K-50 TONG ASSEMBLY COMPLETE LESS DIES w/ROLLOVER HANGER, which was installed in 40 minutes. After replacement, the assembly has handled 95,000 ft-lbs of torque for 1,700+ hours. The rig manager said: “The K-50 assembly is built to last—we’ve eliminated tong-related downtime and cut replacement costs by 65%, and it aligns with our maintenance best practices for reducing slip and tong failures.”

2. North Sea, Offshore Denmark: An offshore rig had a 7624-5105 Rotary Slip failure (generic slips wore out after 450 hours, causing drill pipe slippage) during drilling operations at 16,000 psi pressure. The rig was using a ZJ 60 rig with a load of 900,000 lbs. Our 17 1/2″–19″ 7624-5105 Rotary Slips were installed in 25 minutes. The slips have now lasted 1,650+ hours without slippage. The maintenance technician reported: “The 7624-5105 slips handle high pressure and constant vibration—we haven’t had a single drill pipe slippage incident since installation, and they’re much easier to clean and maintain than generic alternatives, following our slip maintenance protocols.”

3. Alberta, Canada: A shale gas rig using DCS-L 2508 Drill Collar Slips had a failure (generic slips slipped during collar handling, damaging the collar) while handling 120,000 lbs collars at 13,000 feet. Our 9 1/4”–11 1/4” DCS-L 2508 “DCS” Drill Collar Slips Complete were installed, and they have securely held 230+ drill collars without slippage. The customer noted: “The DCS-L 2508 slips provide a rock-solid grip—we no longer worry about collar damage or well control issues, and they last nearly 3x longer than generic slips, reducing our maintenance workload.”

4. Middle East, Oman: A ZJ 50 rig experienced 7613-G-81 Insert failure (generic inserts wore out after 500 hours, causing slip slippage) while drilling at 12,000 feet with a load of 850,000 lbs. Our 5 1/2” X 5” 7613-G-81 Inserts were installed, and they have lasted 1,600+ hours without slipping. The drilling foreman said: “The 7613-G-81 inserts restore the grip we need—they’re easy to clean and maintain, and they fit our DU Rotary Slips perfectly. We’ve cut insert replacement costs by 70% and eliminated the downtime caused by slip failures.”

FAQ (Frequently Asked Questions)

Why Choose Our Spare Parts?

When you choose our oilfield drilling spare parts, you’re investing in reliability, durability, and peace of mind—backed by industry expertise and proven maintenance best practices. We back all our parts with a 12-month warranty, and we maintain a large inventory of key models (including K-50 TONG ASSEMBLY, 7624-5105, and DCS-R 2552) to ensure you get the parts you need when you need them. With 23 years of experience supplying parts to 4,000+ oilfield sites—including major drilling contractors and national oil companies—our 99.4% customer satisfaction rate speaks to our commitment to quality. Our exclusive material testing, strict quality control (including material traceability and load testing), and API certifications (aligned with industry standards for slip and tong components) mean you’ll spend less on replacements and downtime, and more on productive drilling operations. We understand the pressure you’re under to keep your rigs running, and our parts are designed to take that pressure off—built to the same standards as the industry’s top equipment manufacturers, and tailored to the practical needs of一线 maintenance teams.

Call to Action

Don’t let faulty, incompatible spare parts derail your drilling operations or eat into your profits. Whether you need a single K-50 TONG ASSEMBLY, a set of 34-231 Inserts, a 7624-5105 Rotary Slip, or a full inventory of critical spares like the DCS-L 2508 Drill Collar Slips, we have you covered. Our parts are designed to fit your equipment, solve your pain points (including common fault scenarios outlined in industry guides), and keep your operations running smoothly—backed by the expertise and reliability you can trust. Contact us today to discuss your specific needs, get a quote, and secure the high-quality spare parts your team depends on. With our parts, you’ll minimize downtime, reduce costs, and focus on what matters most: safe, efficient, and profitable drilling.

contact us ：

Emeil: [email protected]  

whatsapp: +86 15275658619