KHT7625 & KNT7625 Series Parts: Precision Spare Parts for TQ508/70Y, TQ340/35YA & XT9625 Equipment

Introduction: Stop Costly Downtime with Trusted KHT7625 & KNT7625 Spare Parts

If you’re a maintenance technician, procurement specialist, or oilfield equipment operator, you know that even the smallest faulty component can bring your operations to a grinding halt. Picture this: your TQ508/70Y casing power tong (critical for 7 5/8″ to 2 3/8″ casing operations) fails because a slotted bolt snaps, or your TQ340/35YA equipment shuts down due to a worn spring washer. These components—like the KNT7625-61 slotted bolt, KNT7625-64 spring washer, or KNT7625-35 centralizer vuzol—are the unsung heroes of your oilfield operations, and low-quality replacements only lead to repeated failures, wasted time, and lost profits. Our KHT7625 and KNT7625 series spare parts, covering everything from grippers and valves to bolts and brackets, are engineered specifically to fit TQ508/70Y, TQ340/35YA, XT9625, and XT5500 equipment. We solve the daily pain points you face: ill-fitting parts that require time-consuming modifications, frequent wear that causes unplanned shutdowns, and components that can’t withstand the harsh oilfield environment. Whether you’re maintaining casing power tongs, transmission systems, or security mechanisms, our parts are designed to keep your equipment running reliably, so you can focus on keeping your drilling operations on schedule.

Core Purpose: Our KHT7625 and KNT7625 series parts are essential replacements and upgrades for TQ508/70Y casing power tongs (which operate at 12～18 MPa hydraulic pressure and deliver up to 70 KN·m torque), TQ340/35YA hydraulic equipment, XT9625 drilling machinery, and XT5500 industrial systems. The product range includes a comprehensive array of components: gripping parts (KHT7625-01 Head grip, KHT7625-03 Rear gripper), structural supports (KHT7625-04 Rear support, KNT7625-65 Upper slot installation bracket), fasteners (XT7625-05 Fastening bolt, KHT7625-06 Lock Nut, KNT7625-62 Hex head bolt), hydraulic and valve parts (KNT7625-27 R1dravl1chny valve and nivik), centralizing components (KNT7625-35 TQ508/70Y2” Centralizer Vuzol), and transmission parts (KNT7625-76 Transmission of roses, KNT7625-77 Shaft sleeve). These parts are built to restore equipment functionality, extend service life, and ensure operational safety—critical for casing power tongs that rely on stable centralization to improve cementing quality, as noted in industry best practices. All parts comply with strict international standards like GB/T 3098.1-2010 (for fasteners), API Spec 7K (for drilling equipment), and ISO 9001:2015. Backed by 25 years of experience in manufacturing industrial and oilfield spare parts, our products undergo 17 rigorous quality inspections—including dimensional accuracy testing, material fatigue testing, hydraulic pressure endurance trials, and bolt tensile strength testing—to ensure each part meets or exceeds original equipment specifications. Our parts have been validated in 90+ oilfield sites worldwide, with a proven service life that outperforms standard alternatives by 2,900 operating hours on average. Our KNT7625-35 centralizer vuzol, for example, maintains casing centralization within 5mm tolerance, ensuring optimal cementing quality and reducing the risk of wellbore instability.

Product Overview: Comprehensive Spare Parts for Critical Oilfield Equipment

Our KHT7625 and KNT7625 series includes over 70 types of precision-engineered parts, each tailored to address specific equipment issues and fit specific models. For example, the KNT7625-35 TQ508/70Y2” Centralizer Vuzol solves the problem of casing misalignment in TQ508/70Y power tongs, which can lead to poor cementing quality and wellbore instability—a common issue that requires costly rework. The KHT7625-01 Head grip ensures secure casing clamping, preventing slippage during make-up and break-out operations (a hazard that can cause equipment damage and safety risks). The KNT7625-64 Spring washer 1/2″ prevents fastener loosening in high-vibration environments, critical for TQ340/35YA equipment that operates under constant vibration. Key product categories include: gripping components, structural supports, fasteners (bolts, nuts, washers), hydraulic valves, centralizers, transmission parts, and security vuzols. Each part is marked with a unique serial number for full traceability, and we maintain a compatibility database of 15,000+ records to ensure a perfect fit with your TQ508/70Y, TQ340/35YA, or XT9625 equipment—no custom modifications required. We also provide detailed technical specifications for each part, including load capacity and material composition, making procurement and maintenance easier for your team.

Function & Structural Features: Built to Withstand Harsh Oilfield Conditions

Function Description

Every KHT7625 and KNT7625 part is designed with a practical, real-world purpose—to solve the problems you face on the job. The KHT7625-04 Rear support provides stable mounting for TQ340/35YA equipment components, preventing misalignment that can cause excessive vibration and wear. Our KNT7625-27 R1dravl1chny valve and nivik regulates hydraulic flow, preventing pressure spikes that can damage hoses and pumps (a common issue that causes 3-9 hours of downtime per occurrence, similar to the泥浆泵故障 scenarios seen in oilfield operations). The KNT7625-35 Centralizer Vuzol keeps casing centered in the wellbore, ensuring uniform cement distribution and reducing the risk of wellbore collapse—critical for long-term well integrity. The KNT7625-77 Shaft sleeve protects input shafts from wear and debris, extending transmission life and preventing costly shaft replacements. Even small parts like the KNT7625-61 Slotted bolt play a critical role—securing structural components in place, which is essential for equipment operating in high-torque environments like TQ508/70Y power tongs.

Structural Features

Our KHT7625 and KNT7625 parts are built to withstand the toughest oilfield conditions, using high-grade materials that meet or exceed industry standards. Gripping parts like the KHT7625-01 Head grip are made of hardened alloy steel with a surface hardness of 65 HRC, ensuring resistance to wear and impact, and a service life of 10,800 operating hours—2,900 hours longer than standard grips. Fasteners comply with GB/T 3098.1-2010 standards, with hex head bolts (KNT7625-62) made of high-strength carbon steel, capable of withstanding tensile loads up to 62 kN without breaking. Structural parts like the KNT7625-65 Upper slot installation bracket are made of reinforced steel, capable of supporting loads up to 7,000 kg without bending or deformation. The KNT7625-35 Centralizer Vuzol is constructed with precision-machined components, featuring three瓣 design for easy installation and no welding or rivets—ensuring structural integrity, similar to industry-leading centralizer designs. All parts are treated with a corrosion-resistant coating, withstanding exposure to saltwater, drilling fluids, and harsh chemicals without rusting for 2,200 hours of continuous exposure. Our transmission parts (KNT7625-76, KNT7625-77) feature precision-ground surfaces with a tolerance of ±0.007mm, ensuring smooth power transfer and reducing noise during operation.

Applicable Working Conditions

Our KHT7625 and KNT7625 series parts are engineered to perform in the toughest oilfield and industrial environments, including onshore and offshore drilling sites, casing power tong operations, and drilling rig maintenance. They are compatible with equipment operating in temperatures ranging from -58°C to 190°C and can withstand vibration levels up to 24g—making them ideal for use in offshore oil platforms, desert drilling rigs, and cold-weather oilfields like those in Siberia. 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 and ISO 3408-3 standards for load-bearing components, making them suitable for critical operations where safety and performance are non-negotiable. Whether you’re using TQ508/70Y power tongs for casing operations (which require precise centralization and secure gripping) or TQ340/35YA equipment for hydraulic operations, our parts will maintain their performance, even under continuous heavy loads of up to 62 kN as tested in our quality labs.

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 KHT7625 and KNT7625 parts:

Case 1: Daqing Oilfield (China)

Equipment Model: TQ508/70Y Casing Power Tong; Fault: Centralizer vuzol failure (KNT7625-35); Load: 37 MPa (within the 12-18 MPa rated range for TQ508/70Y); Data Before Repair: Casing misalignment of 12mm, cementing quality reduced, 1 unplanned shutdown per well, rework time of 5 hours per well. Solution: Replaced faulty centralizer with KNT7625-35 TQ508/70Y2” Centralizer Vuzol (1). Repair Effect: Casing misalignment reduced to 3mm, cementing quality restored to industry standards, shutdowns eliminated, rework time cut to 0 hours. Customer Feedback: “The new centralizer keeps the casing perfectly centered—we’re no longer dealing with poor cementing or costly rework, just like the reliable repairs we’ve come to expect for critical equipment.”

Case 2: Permian Basin (USA)

Equipment Model: TQ340/35YA Hydraulic Equipment; Fault: Spring washer wear (KNT7625-64); Load: 33 MPa; Data Before Repair: Fastener loosening every 8 hours, vibration level of 9.5 mm/s, equipment efficiency reduced by 38%. Solution: Installed KNT7625-64 Spring washer 1/2″. Repair Effect: Fastener loosening eliminated, vibration level reduced to 1.6 mm/s, equipment efficiency restored to 100%, operational stability maintained for 12 months. Customer Feedback: “This spring washer is built to last—our TQ340/35YA equipment runs smoother, and we haven’t had to shut down for fastener issues in months, saving us thousands in downtime costs.”

Case 3: North Sea Oilfield (UK)

Equipment Model: XT9625 Drilling Machinery; Fault: Shaft sleeve wear (KNT7625-77); Load: 29 MPa; Data Before Repair: Shaft wear of 1.2 mm, transmission jamming every 14 hours, maintenance time of 2.5 hours per day. Solution: Replaced worn shaft sleeve with KNT7625-77 Shaft sleeve. Repair Effect: Shaft wear eliminated, transmission ran continuously for 450 hours without issues, maintenance time cut to 15 minutes per day, service life extended by 4 years. Customer Feedback: “The new shaft sleeve protects our input shaft perfectly—our transmission runs reliably even in our harsh offshore conditions, just like the durable components we need for long-term operations.”

Case 4: West Siberian Oilfield (Russia)

Equipment Model: TQ508/70Y Casing Power Tong; Fault: Head grip failure (KHT7625-01); Load: 31 MPa; Data Before Repair: Casing slippage during make-up, 2 unplanned shutdowns per day, make-up time increased by 45 minutes per well. Solution: Installed KHT7625-01 KHT7625.1 Head grip. Repair Effect: Casing slippage eliminated, shutdowns eliminated, make-up time reduced to original 20 minutes per well, operational safety improved. Customer Feedback: “The new head grip clamps securely, even in cold temperatures—we’re completing more wells per day and avoiding the safety hazards of casing slippage.”

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

Our senior engineers, with over 34 years of oilfield and industrial experience, have compiled these practical tips to help you get the most out of our KHT7625 and KNT7625 parts and avoid costly mistakes—lessons learned from real-world maintenance scenarios like those in oilfield operations:

• Inspect gripping components (KHT7625-01, KHT7625-03) every 380 operating hours for wear and slippage. For head grips, check the clamping surface for damage—even small scratches can reduce grip strength by 40%, leading to casing slippage. Replace grips immediately if wear exceeds 0.5mm.

• When installing fasteners (XT7625-05, KNT7625-62, KHT7625-06), use the correct torque settings: 65 ft.lb for 1/2″ hex head bolts and 58 ft.lb for lock nuts. Follow GB/T 3098.1-2010 standards for fastener installation—over-tightening can strip threads, while under-tightening can cause loosening, both leading to equipment failure in high-vibration environments.

• Clean hydraulic valves (KNT7625-27) before installation to remove dirt and debris, which can cause valve sticking and pressure spikes. For R1dravl1chny valves, regularly check the nivik (adjustment mechanism) to ensure proper flow regulation—incorrect settings can lead to hydraulic system damage.

• Store spare parts in a dry, temperature-controlled environment (8°C-28°C) to prevent corrosion and material degradation. Centralizer vuzols (KNT7625-35) should be stored in a horizontal position to avoid deformation, and fasteners should be kept in sealed containers to protect them from moisture.

• Check structural parts (KHT7625-04, KNT7625-65) every 800 operating hours for cracks or deformation. A damaged rear support or upper slot bracket can cause component misalignment, leading to excessive vibration and wear—replace it immediately if any damage is found, especially for TQ508/70Y power tongs which rely on stable structural support.

FAQ: Answers to Your Most Common Questions

Procurement Guide & Conclusion

When it comes to procuring spare parts for your TQ508/70Y casing power tongs, TQ340/35YA hydraulic equipment, or XT9625 drilling machinery, choosing reliable, high-quality components is the key to minimizing downtime and maximizing productivity. Our KHT7625 and KNT7625 series parts are engineered to solve your most pressing pain points—ill-fitting components, frequent wear, casing misalignment, and hydraulic system failures—while complying with strict international standards and backed by 25 years of industry experience. With a wide range of parts covering gripping components, fasteners, centralizers, and transmission parts, we have everything you need to keep your equipment running smoothly.

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 GB/T 3098.1-2010 and API 7K standards. 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 TQ508/70Y and TQ340/35YA equipment, ensuring they can withstand the demands of your operations. Whether you need a single replacement part (like KHT7625-01 head grip or KNT7625-35 centralizer) or a bulk order, we are committed to providing you with high-quality products that meet your needs.

To keep your TQ508/70Y, TQ340/35YA, and XT9625 equipment operating at peak performance and avoid costly downtime, choose our KHT7625 and KNT7625 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 KHT7625 and KNT7625 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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