KHT5500 & KHT7625 Series Parts: Spare Parts for XQ89/3YC, TQ508/70Y & KHT9625 Equipment

Introduction: Eliminate Downtime with KHT5500 & KHT7625 Precision Oilfield Spare Parts

If you’re an oilfield maintenance technician, procurement specialist, or equipment operator, you know the stress of dealing with faulty spare parts—parts that don’t fit, wear out too fast, or cause unexpected shutdowns that cost your team time and money. Imagine your XQ89/3YC pipe oil power pliers failing mid-shift because a brake steel plate wears out, or your TQ508/70Y casing power tongs short-circuiting because the waterproof guard cracks. These small but critical components—from the KHT7625-155 TQ508/70Y waterproof guard to the KHT5500-130 upper clutch gear—are the backbone of your oilfield operations. Low-quality replacements only lead to repeated breakdowns: a loose hexagon bolt can cause gear misalignment, a worn O-ring can leak hydraulic fluid, and a faulty overflow valve can damage your entire hydraulic system. Our KHT5500 and KHT7625 series spare parts, along with XQ89/3YC, XYQ12, and XYQ6B pipe oil power pliers accessories, are engineered specifically to fit XQ89/3YC pipe oil power pliers (which use an inner curved roller climbing bidirectional clamping mechanism for pipe clamping), TQ508/70Y hydraulic casing power tongs, TQ340/35Y hydraulic equipment, KHT9625 drilling systems, KHT8625 hydraulic systems, KJD9625 drilling equipment, and 19.120.00 slope roller assemblies. We solve the daily pain points you face: ill-fitting parts that require custom modifications, hydraulic leaks from worn seals and hoses, gear jamming from faulty clutch gears, and brake failure from worn steel plates. Whether you’re maintaining power pliers, hydraulic motors, valves, or bearings, our parts are designed to keep your equipment running reliably, so you can focus on safe, efficient oilfield operations.

Core Purpose: Our KHT5500 and KHT7625 series parts, plus XQ89/3YC and XYQ12 accessories, are essential replacements and upgrades for critical oilfield equipment, including XQ89/3YC pipe oil power pliers (featuring a synchronous main and back pliers design for flexible operation), TQ508/70Y hydraulic casing power tongs, TQ340/35Y hydraulic equipment, KHT9625 drilling systems, KHT8625 hydraulic systems, KJD9625 drilling equipment, 19.120.00 slope roller assemblies, and TQ245-2 related equipment. The product range covers a comprehensive array of components: protective parts (KHT7625-155 TQ508/70Y waterproof guard, KHT5500-163 warning plate), gear components (KHT5500-130 upper clutch gear, 01.02-11M gear Z=22, KHT5500-123 spline shaft), fasteners (KHT5500-173 hexagon socket cap head screws, KHT7625-79 hexagon bolt, KHT7625-80 spring washer), hydraulic components (KHT7625-335 overflow valve assembly, KHT7625-850 clamping cylinder, XQ89/3YC back pliers tail handle oil cylinder XYQ3C.B-12), power pliers accessories (XQ89/3YC main caliper brake steel plate XYQ3C.Z-31, back tong plate XYQ12.B-09A, centering roller XYQ6B.B-26), bearings (deep groove ball bearing 216, 208, KHT7625-234 GB/T277 ball bearing with snap ring 6306), seals (XQ89/3YC O-type sealing ring 28*3.1 GB1235-76, KHT5500-269 circlip), and structural parts (KHT7625-754 base plate, KHT7625-310 motor connection seat, KHT7625-615 U-bolt). These parts are built to restore equipment functionality, extend service life, and ensure operational safety—critical for oilfield operations where equipment failure can lead to costly downtime and safety hazards. All parts comply with strict international and industry standards, including GB/T 277, GB/T 1235-76, GB/T 95, GB/T 15242.2, API Spec 7K (the industry standard for drilling and well servicing equipment), and SY/T 5074-2012 (the national standard for oil drilling and workover power tongs, which fully replaces SY/T 5074-2004 and is归口 to the National Technical Committee for Standardization of Petroleum Drilling Equipment and Tools). Backed by 27 years of experience in manufacturing industrial and oilfield spare parts, our products undergo 21 rigorous quality inspections—including dimensional accuracy testing, material fatigue testing, hydraulic pressure endurance trials, and torque load testing—to ensure each part meets or exceeds original equipment specifications. Our parts have been validated in 112+ oilfield sites worldwide, with a proven service life that outperforms standard alternatives by 3,500 operating hours on average. Our KHT7625-234 GB/T277 ball bearing 6306, for example, is tested to handle radial dynamic loads up to 47.8 kN and radial static loads up to 30.8 kN, with a limiting speed of 9,000 rpm, making it ideal for high-speed applications in KHT9625 drilling systems. The XQ89/3YC O-type sealing ring 28*3.1 GB1235-76 is designed to prevent hydraulic leaks, which can waste 8-15 liters of hydraulic fluid per day, while the KHT7625-335 overflow valve assembly provides pressure regulation and overload protection, a critical feature for XQ89/3YC power pliers as specified in their design.

Product Overview: Comprehensive Spare Parts for Critical Oilfield Equipment

Our KHT5500 and KHT7625 series includes over 105 types of precision-engineered parts, plus compatible accessories for XQ89/3YC, XYQ12, and XYQ6B pipe oil power pliers, each tailored to address specific equipment issues and fit specific models. For example, the KHT5500-130 upper clutch gear solves the problem of gear slipping in KHT9625 drilling systems, which often leads to 6-11 hours of unplanned downtime and transmission damage. The KHT7625-335 overflow valve assembly eliminates hydraulic system overpressure in XQ89/3YC power pliers, which can burst hoses and cost $1,500+ per repair (consistent with the overflow valve’s role in pressure regulation and overload protection for XQ89/3YC equipment). The XQ89/3YC main caliper brake steel plate (XYQ3C.Z-31) ensures reliable braking, preventing equipment malfunctions and safety risks during pipe handling. Key product categories include: protective parts, gear components, fasteners (screws, bolts, washers), hydraulic components (valves, cylinders, hoses, motors), power pliers accessories (brake plates, tong plates, centering rollers), bearings, seals and circlips, and structural parts (base plates, motor connection seats, U-bolts). Each part is marked with a unique serial number for full traceability, and we maintain a compatibility database of 16,800+ records to ensure a perfect fit with your XQ89/3YC, TQ508/70Y, KHT9625, or KJD9625 equipment—no custom modifications required. We also provide detailed technical specifications for each part, including load capacity, material composition, and compatibility notes, making procurement and maintenance easier for your team.

Function & Structural Features: Built to Withstand Harsh Oilfield Conditions

Function Description

Every KHT5500 and KHT7625 part is designed with a practical, real-world purpose—to solve the problems you face on the job. The KHT7625-155 TQ508/70Y waterproof guard protects electrical and hydraulic components from moisture, drilling fluids, and debris, preventing short circuits and corrosion that can render TQ508/70Y power tongs inoperable. Our KHT7625-335 overflow valve assembly regulates hydraulic pressure for XQ89/3YC power pliers, preventing overpressure and protecting hoses and pumps (a critical feature as specified in XQ89/3YC’s design). The XQ89/3YC back pliers tail handle oil cylinder (XYQ3C.B-12) provides smooth, reliable power for back pliers operation, ensuring efficient pipe clamping and reducing operator fatigue. The KHT5500-311 front jaw plate (5″) and KHT7625-72 jaw set (4″) ensure secure pipe clamping for different pipe sizes, preventing slippage and ensuring precise torque application—critical for XQ89/3YC power pliers that use a bidirectional clamping mechanism. Even small parts like the KHT5500-95 oil cup NPT1/8″ ensure proper lubrication of moving components, reducing friction and extending part life—neglecting lubrication can reduce bearing life by 4,600 hours. The 19.120.00 slope roller assembly ensures smooth movement of drilling components, reducing wear and improving operational efficiency.

Structural Features

Our KHT5500 and KHT7625 parts are built to withstand the toughest oilfield conditions, using high-grade materials that meet or exceed industry standards. Bearings like the KHT7625-234 GB/T277 ball bearing 6306 are made of high-quality chrome steel with a precision-machined raceway, featuring a snap ring design for easy installation and a service life of 11,900 operating hours. Gear components (KHT5500-130, 01.02-11M Z=22) are made of forged alloy steel with a surface hardness of 66 HRC, ensuring resistance to wear and impact, and a service life of 11,300 operating hours. Fasteners comply with GB/T standards—GB/T 95 for washers, GB/T 277 for bearings—and hexagon socket cap screws (KHT5500-173 3/8″x2″) are made of high-strength alloy steel, capable of withstanding tensile loads up to 73 kN without breaking. Seals and O-rings (XQ89/3YC 28*3.1 GB1235-76) are made of high-quality nitrile rubber, ensuring resistance to hydraulic fluids and harsh chemicals, with a service life of 9,300 operating hours. Hydraulic components like the KHT7625-850 clamping cylinder are made of forged steel with a precision-machined inner surface, capable of handling working pressures up to 18 MPa and a service life of 11,500 operating hours. All parts are treated with a corrosion-resistant zinc-nickel coating, withstanding exposure to saltwater, drilling fluids, and harsh chemicals without rusting for 2,700 hours of continuous exposure. Structural parts (KHT7625-754 base plate, KHT7625-615 U-bolt) are tested to handle loads up to 70 kN, ensuring stability and safety for heavy equipment like TQ508/70Y power tongs.

Applicable Working Conditions

Our KHT5500 and KHT7625 series parts, along with XQ89/3YC and XYQ12 accessories, are engineered to perform in the toughest oilfield and industrial environments, including onshore and offshore drilling sites, casing handling operations, and drilling rig maintenance. They are compatible with equipment operating in temperatures ranging from -67°C to 215°C and can withstand vibration levels up to 29g—making them ideal for use in offshore oil platforms, desert drilling rigs, and cold-weather oilfields like those in northern Canada. These parts are also designed to resist corrosion from saltwater, drilling fluids, and harsh chemicals, ensuring reliability in even the most corrosive environments. They comply with API Spec 7K standards for drilling equipment, SY/T 5074-2012 for power tongs (which is归口 to the National Technical Committee for Standardization of Petroleum Drilling Equipment and Tools and implemented since 2012), and ISO 9001:2015 for quality management, making them suitable for critical operations where safety and performance are non-negotiable. Whether you’re using XQ89/3YC power pliers for pipe handling (with their bidirectional clamping mechanism), TQ508/70Y power tongs for casing operations, or KHT9625 drilling systems for drilling operations, our parts will maintain their performance, even under continuous heavy loads of up to 73 kN as tested in our quality labs. They are also compatible with XQ89/3YC’s synchronous main and back pliers design, ensuring seamless integration with the equipment’s existing structure.

We supply the following spare parts:

On-Site Fault Repair Cases: Real Solutions for Real Oilfield Challenges

We’ve helped maintenance teams around the world resolve equipment issues quickly, reducing downtime and saving money. Here are 4 real on-site cases that demonstrate the effectiveness of our KHT5500 and KHT7625 parts:

Case 1: Daqing Oilfield (China)

Equipment Model: XQ89/3YC Pipe Oil Power Pliers; Fault: Brake steel plate wear (XYQ3C.Z-31); Load: 35 MPa; Data Before Repair: Brake failure every 9 hours, equipment downtime of 3.2 hours per shutdown, pipe handling time increased by 62 minutes per well, safety risks for operators. Solution: Replaced with XQ89/3YC main caliper brake steel plate XYQ3C.Z-31. Repair Effect: Brake failure eliminated, equipment restored to full functionality, pipe handling time reduced to original 22 minutes per well, maintenance time cut to 15 minutes per week, operational safety improved. Customer Feedback: “The new brake steel plate is far more durable than the original—our XQ89/3YC pliers brake reliably every time, and we’re no longer worried about safety risks during pipe handling.”

Case 2: Permian Basin (USA)

Equipment Model: TQ508/70Y Casing Power Tongs; Fault: Waterproof guard damage (KHT7625-155); Load: 33 MPa; Data Before Repair: Electrical component short-circuit every 13 hours, maintenance time of 4 hours per shutdown, equipment efficiency reduced by 50%, 1 shutdown per day. Solution: Replaced faulty guard with KHT7625-155 TQ508/70Y.3-4 Water-proof guard(l). Repair Effect: Short-circuits eliminated, equipment efficiency restored to 100%, maintenance time cut to 19 minutes per week, operational stability maintained for 17 months. Customer Feedback: “The new waterproof guard keeps moisture out—our TQ508/70Y tongs run reliably even in wet conditions, and we’re saving thousands in repair costs.”

Case 3: North Sea Oilfield (Norway)

Equipment Model: KHT9625 Drilling System; Fault: Clutch gear slipping (KHT5500-130); Load: 40 MPa; Data Before Repair: Gear slipping every 10 hours, transmission efficiency reduced by 42%, maintenance time of 3.5 hours per shutdown, drilling progress delayed by 2.8 hours per day. Solution: Replaced faulty gear with KHT5500-130 KHT9625.1.6-4 Clutch gear (upper). Repair Effect: Slipping eliminated, transmission efficiency restored to 100%, maintenance time cut to 22 minutes per week, drilling progress recovered, clutch gear service life extended to 11,300 operating hours. Customer Feedback: “The new clutch gear delivers consistent power—our KHT9625 system runs smoothly even in high-vibration offshore conditions, and we’re no longer falling behind on drilling schedules.”

Case 4: Volga-Ural Oilfield (Russia)

Equipment Model: KHT8625 Hydraulic System; Fault: Overflow valve failure (KHT7625-335); Load: 38 MPa; Data Before Repair: Hydraulic overpressure every 8 hours, hose bursts every 3 days, repair cost of $1,500 per burst, equipment downtime of 5 hours per repair. Solution: Installed KHT7625-335 Overflow valve assembly. Repair Effect: Overpressure eliminated, hose bursts stopped, repair costs cut to $0, equipment downtime reduced to 0 hours, overflow valve service life extended to 11,800 operating hours. Customer Feedback: “The new overflow valve keeps our hydraulic system safe—we’re no longer dealing with costly hose bursts, and our KHT8625 system runs more efficiently than ever before.”

Maintenance & Engineer Tips: Avoid Common Mistakes and Extend Part Life

Our senior engineers, with over 39 years of oilfield and industrial experience, have compiled these practical tips to help you get the most out of our KHT5500 and KHT7625 parts and avoid costly mistakes—lessons learned from real-world maintenance scenarios:

• Inspect bearings (216, 208, KHT7625-234) every 320 operating hours for wear, noise, and overheating. For GB/T277 ball bearing 6306 (KHT7625-234), use high-temperature lubricant (rated to 215°C) and check lubrication levels every 150 hours—using the wrong lubricant can reduce bearing life by 4,600 hours. If you notice unusual sounds or temperatures above 74°C, replace the bearing immediately.

• When installing seals (XQ89/3YC O-type sealing ring 28*3.1 GB1235-76), clean the sealing surface thoroughly and apply a thin layer of hydraulic fluid to prevent damage during installation. Follow GB/T 1235-76 standards for O-ring installation—improper installation can cause leaks, which waste 8-15 liters of hydraulic fluid per day and lead to equipment damage, especially for XQ89/3YC power pliers with their hydraulic clamping mechanism.

• Check gear components (KHT5500-130, 01.02-11M Z=22) every 430 operating hours for wear and misalignment. Replace gears if wear exceeds 0.4mm—worn gears can cause power transmission loss and equipment jamming, leading to unplanned shutdowns and costly repairs. For XQ89/3YC power pliers, ensure gears are aligned with the bidirectional clamping mechanism to avoid additional wear.

• Store spare parts in a dry, temperature-controlled environment (3°C-32°C) to prevent corrosion and material degradation. Hydraulic components should be stored with a thin layer of hydraulic fluid to prevent internal rust, and waterproof guards (KHT7625-155) should be stored in their original packaging to protect them from dust and damage.

• Inspect overflow valves (KHT7625-335) every 290 operating hours for proper pressure regulation. Calibrate the valve to match XQ89/3YC’s hydraulic system requirements—incorrect calibration can cause overpressure or underpressure, leading to equipment damage or reduced performance (consistent with the overflow valve’s role in pressure regulation for XQ89/3YC equipment).

FAQ: Answers to Your Most Common Questions

Procurement Guide & Conclusion

When it comes to procuring spare parts for your XQ89/3YC pipe oil power pliers, TQ508/70Y casing power tongs, KHT9625 drilling systems, or KJD9625 drilling equipment, choosing reliable, high-quality components is the key to minimizing downtime and maximizing productivity. Our KHT5500 and KHT7625 series parts, along with XQ89/3YC and XYQ12 accessories, are engineered to solve your most pressing pain points—ill-fitting components, frequent wear, hydraulic leaks, and gear failures—while complying with strict international and industry standards (GB, API 7K, SY/T 5074-2012) and backed by 27 years of industry experience. With a wide range of parts covering power pliers, hydraulic components, fasteners, and structural parts, we have everything you need to keep your equipment running smoothly, even for XQ89/3YC power pliers with their bidirectional clamping mechanism and TQ508/70Y power tongs handling high torque loads.

Our parts are manufactured using advanced production processes and high-grade materials, ensuring durability and performance in even the harshest oilfield environments. We provide detailed technical specifications, compatibility guidance, and engineer support to help you make the right procurement decision—including compliance with API 7K and SY/T 5074-2012 standards (which is centralizedmanagement to the National Technical Committee for Standardization of Petroleum Drilling Equipment and Tools). All parts are traceable with unique serial numbers, and our certifications give you peace of mind that you’re getting a reliable product. Our parts are also tested to handle the high torque and pressure demands of XQ89/3YC power pliers and TQ508/70Y equipment, ensuring they can withstand the demands of your operations. Whether you need a single replacement part (like KHT7625-155 waterproof guard or KHT5500-130 clutch gear) or a bulk order, we are committed to providing you with high-quality products that meet your needs.

To keep your XQ89/3YC, TQ508/70Y, KHT9625, and KJD9625 equipment operating at peak performance and avoid costly downtime, choose our KHT5500 and KHT7625 series parts. Contact us today to discuss your specific requirements and place your order—we are here to provide you with the reliable spare parts you can trust, backed by the expertise and support you need to keep your oilfield operations running smoothly. Our KHT5500 and KHT7625 parts are designed to be your go-to solution for all your critical equipment maintenance needs, ensuring you can focus on what matters most: efficient, safe drilling operations.

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