XYQ1.8 Series & XYQ3C.Z Power Pliers Accessories Supply (Including BM-D250 & BMD-400 Motors)

Introduction: End Costly Downtime with Precision-Matched XYQ1.8 & XYQ3C.Z Power Pliers Accessories

For oilfield maintenance technicians, drilling supervisors, and procurement specialists, even a small faulty accessory can bring your XYQ1.8 and XYQ3C.Z power pliers to a standstill—wasting valuable time, increasing operational costs, and putting your team’s safety at risk. A worn 3C1-53 XYQ3C.Z-31 Brake Pad, leaky GB3452.1-92 O-ring 20×2.65, loose 3C5-9 GB/T5782-2000 Hexagon bolt M20 X 60, or malfunctioning Cycloidal oil motor BM-D250 can disrupt critical workover and drilling operations, from casing make-up to sucker rod break-out. We specialize in supplying high-quality, perfectly compatible accessories designed exclusively for XYQ1.8 series (XYQ1.8Z, XYQ1.8HD, XYQ1.8B) and XYQ3C series (XYQ3C.Z, XYQ3C.B) power pliers, including essential components like jaw plates, gears, fasteners, seals, and even cycloidal hydraulic motors (BM-D250, BMD-400). Our comprehensive lineup covers every part you need to keep your equipment running smoothly, solving the most frustrating oilfield pain points and ensuring consistent performance when you need it most.

Our core purpose is to simplify your procurement and maintenance processes, providing parts that fit the first time, last longer, and eliminate the hassle of mismatched or low-quality components—critical for avoiding the "剥洋葱"式检修 headaches that often plague oilfield maintenance teams. Every accessory we supply adheres to strict industry standards, including GB/T5782-2000, GB/T93-1987, GB3452.1-92, GB882-86, and API 7K—the global gold standard for oilfield drilling equipment safety and reliability, which specifies rigorous design, manufacturing, and testing requirements for high-pressure components. We also comply with SY/T 5074-2012, the national industry standard for drilling and workover power tongs and hangers, which governs everything from component design to performance testing. With 24 years of experience in manufacturing and supplying oilfield accessories, we’ve served 430+ oilfields worldwide, delivering 255,000+ reliable parts that extend equipment service life by 2,500 working hours on average, compared to generic alternatives. We understand that in the oilfield, every minute of downtime costs money—our accessories are built to withstand the harshest conditions, reduce maintenance frequency, and keep your workover and drilling operations on track.

Product Overview: Precision-Matched Accessories for XYQ1.8 & XYQ3C.Z Power Pliers

Core Product Range & Model Compatibility

Our accessories are precision-crafted to fit the most widely used pipe & tubing power pliers in the oilfield industry—specifically the XYQ1.8 series (XYQ1.8Z, XYQ1.8HD, XYQ1.8B) and XYQ3C series (XYQ3C.Z, XYQ3C.B), which are essential for workover and drilling operations involving sucker rods, tubing, and casing. We also supply critical hydraulic components like Cycloidal oil motor BM-D250 and BMD-400 Cycloidal Hydraulic Motor, which are integral to powering these pliers. We eliminate the risk of mismatches by strictly following original equipment design drawings and dimensional standards, ensuring every part installs seamlessly without modification—aligning with the fit and function requirements outlined in SY/T 5074-2012 and API 7K’s material and testing guidelines. Key compatible models include:

• XYQ1.8 Series: XYQ1.8Z (roller, slider, brake pad), XYQ1.8HD (rear guide rod sleeve), XYQ1.8B (back clamp head body, piston, sensor cylinder assembly)

• XYQ3C Series: XYQ3C.Z (pad, positioning seat, double gear shaft, manual directional valve), XYQ3C.B (back clamp head baffle)

• Hydraulic Motors: Cycloidal oil motor BM-D250, BMD-400 Cycloidal Hydraulic Motor

• Associated Components: All matching parts for both series, including fasteners (GB/T5782-2000, GB/T70.1-2000), seals (GB3452.1-92), gears, rollers, and structural components

Our product range covers every critical component, from small fasteners like 3C5-9 GB/T5782-2000 Hexagon bolt M20 X 60 and GB68-85 Slotted Countersunk Head Screw M5X1O-5.8 to complex assemblies like 3C1-24 XYQ3C.Z.2 clutch gear assembly and XYQ1.8B.1 sensor cylinder assembly, as well as hydraulic motors. Whether you need a replacement GB3452.1-92 O-ring 20×2.65, a new 3C2-28 XYQ3CZ1-UB Jaw plate B, or a reliable Cycloidal oil motor BM-D250, we offer a one-stop supply solution that simplifies procurement and reduces downtime—critical for meeting tight workover schedules.

Function & Pain Point Solutions

Every accessory we supply is designed to solve the real-world problems oilfield professionals face daily—problems we’ve witnessed firsthand through decades of working alongside drilling and maintenance teams, including the "剥洋葱"式检修 challenges often encountered when troubleshooting power钳 issues. Here’s how our key products deliver tangible value, addressing common pain points and aligning with API 7K and SY/T 5074-2012 performance requirements:

• Hydraulic Motors (BM-D250, BMD-400): Prevent power loss and motor failure that halts operations. Our Cycloidal oil motor BM-D250 delivers stable power output of 250cc/rev, lasting 12,000 working hours, while the BMD-400 motor (400cc/rev) withstands 38MPa pressure—solving the common issue of motor stalling during high-torque operations, similar to the power-related problems resolved in "剥洋葱"式检修 cases.

• Fasteners & Seals (3C5-9 GB/T5782-2000 Hexagon bolt, GB3452.1-92 O-ring): Avoid loose fasteners and hydraulic leaks that damage equipment. Our GB/T5782-2000 hexagon bolt (M20 X 60) provides strong fastening, lasting 14,800 assembly cycles (meeting the standard’s 8.8-grade performance requirements), while the GB3452.1-92 O-ring (20×2.65) resists oil and high temperatures for 2,500 working hours—complying with national standards for hydraulic sealing and preventing costly leaks.

• Brake & Jaw Parts (3C1-53 XYQ3C.Z-31 Brake Pad, 3C2-28 XYQ3CZ1-UB Jaw plate B): Eliminate brake failure and jaw slippage that compromises safety. Our brake pad ensures reliable stopping power for 12,500 working hours, while the jaw plate provides a secure grip for 4,800 make-up/break-out cycles—solving the common problem of worn brakes and jaws that put operators at risk and delay operations.

• Transmission & Structural Parts (3C1-19 XYQ3C.Z-11 Double gear shaft, 3C1-34 XYQ3C.Z-22 Tailstock): Prevent gear jams and structural instability. Our double gear shaft (heat-treated to HRC 62-66) withstands 36,000 N·m torque without wear, lasting 12,000 working hours, while the tailstock maintains stable alignment under heavy loads—avoiding the gear-related issues that often require "剥洋葱"式检修 to resolve.

Structural Features

Our accessories are built to withstand the harshest oilfield conditions—from dusty onshore rigs to corrosive offshore platforms—with a focus on durability, ease of use, and long service life, all while meeting the design and manufacturing requirements of SY/T 5074-2012 and API 7K (which mandates high-pressure resistance, corrosion resistance, and low-temperature toughness for materials):

• Material Excellence: Gears, shafts, and structural parts use high-strength alloy steel (GB/T 3077, a standard referenced in SY/T 5074-2012), meeting API 7K’s material requirements for high-pressure components. O-rings and seals use oil-resistant, high-temperature fluorine rubber (compliant with GB3452.1-92) for hydraulic sealing. Fasteners like GB/T5782-2000 hexagon bolts and GB/T70.1-2000 socket head cap screws are made of high-carbon steel, ensuring high tensile strength and fatigue resistance for 14,800+ assembly cycles. Hydraulic motors (BM-D250, BMD-400) use precision-cast iron housings for durability.

• Precision Manufacturing: All parts are processed with CNC machining, ensuring dimensional accuracy within ±0.007mm—critical for components like 3C1-19 XYQ3C.Z-11 Double gear shaft and 3C1-78 XYQ3C.Z-44 pad that require a perfect fit to avoid equipment jams. This precision matches the original equipment’s specifications, eliminating the need for modification during installation, and aligns with API 7K’s product testing requirements for dimensional accuracy and performance. For fasteners like GB/T5782-2000, we strictly follow the standard’s A-level precision requirements for threads and dimensions.

• User-Centric Design: Key parts like 3C1-136 XYQ3C.Z.5-10 Ball handle and XYQ1.8.Z-19 Tailstock are designed for easy installation and maintenance, allowing technicians to replace parts in minutes rather than hours—simplifying the "剥洋葱"式检修 process often needed for power钳 maintenance. Hydraulic motors feature easy access to maintenance points, reducing downtime for service.

Applicable Working Conditions

Our accessories are engineered to perform reliably in the most challenging oilfield environments, meeting the demands of onshore, offshore, and high-torque workover and drilling scenarios—complying with API 7K (which applies to high-pressure manifold systems and auxiliary tools used in oil and gas operations) and SY/T 5074-2012 standards for drilling and workover power tongs, which cover a wide range of operational conditions:

• Onshore Oilfields: Adapt to extreme temperature ranges of -55℃ to 110℃, resisting dust, sand, and heavy vibration during workover operations. Ideal for arid regions like Turpan-Hami and Daqing, where dust and temperature fluctuations can damage low-quality parts. Our hydraulic motors, gears, and fasteners perform reliably even in these harsh conditions, maintaining performance without failure during extended workover shifts.

• Offshore Oilfields: Corrosion-resistant materials (including stainless steel fasteners and oil-resistant O-rings) prevent damage from saltwater and humid air, meeting API 7K’s corrosion resistance requirements for H₂S environments (aligned with NACE MR0175). This ensures stable performance on offshore platforms like Bohai Bay, where our GB3452.1-92 O-rings and XYQ3C.Z-31 Brake Pad resist saltwater corrosion for 3,000 working hours.

• High-Torque & Pipe Handling Operations: Suitable for deep well, horizontal well, and casing operations, where XYQ1.8 and XYQ3C.Z power pliers operate under up to 36,000 N·m torque and 38MPa hydraulic pressure—meeting API 7K’s high-pressure performance requirements and SY/T 5074-2012’s high-grade maximum torque standards. Our hydraulic motors (BM-D250, BMD-400) deliver consistent power for high-torque make-up/break-out tasks, while our accessories ensure precise pipe handling.

• Continuous Operation: Designed for 24/7 use, our accessories reduce replacement frequency—our gears and hydraulic motors can operate continuously for 12,000 working hours, while our O-rings and springs last 2,500 working hours, minimizing downtime for maintenance and aligning with the demands of modern oilfield operations.

Maintenance & Engineer’s Practical Tips (Avoid Costly Mistakes)

As an oilfield equipment engineer with 22 years of on-site experience, I’ve seen countless equipment failures caused by improper maintenance or using the wrong parts—many of which could have been avoided with simple, practical steps, similar to the "Onion-skinning-style maintenance approach used to resolve power wrench issues in real-world scenarios. From my experience working on XYQ1.8 and XYQ3C.Z power pliers (and their hydraulic motors) in workover operations, here are my tips to extend the life of your accessories and keep your equipment running smoothly, aligned with SY/T 5074-2012’s maintenance guidelines and API 7K’s testing requirements:

Hydraulic Motor Maintenance: Check Cycloidal oil motor BM-D250 and BMD-400 every 300 working hours for oil leaks and abnormal noise. Replace hydraulic oil every 1,500 working hours and clean the oil filter to prevent debris from damaging internal components—our BM-D250 motor lasts 12,000 working hours, but poor oil quality can reduce its life to 3,500 hours. This is a critical step I often emphasize to avoid the "Onion-skinning-style maintenance

•  needed for motor failures.

• Fastener & Seal Care: Tighten 3C5-9 GB/T5782-2000 hexagon bolts, 3C2-34 GB/T70.1-2000 socket head cap screws, and GB91-2000 split pins every 120 working hours. Loose fasteners cause vibration, which damages gear trains and structural parts. Use the correct torque wrench setting—over-tightening strips threads (a common mistake with GB/T5782-2000 bolts), while under-tightening leads to loosening. Inspect GB3452.1-92 O-rings every 330 working hours for cracks or hardening, and replace them promptly to avoid hydraulic leaks.

• Brake & Jaw Maintenance: Inspect 3C1-53 XYQ3C.Z-31 Brake Pad and 3C2-28 XYQ3CZ1-UB Jaw plate B every 400 working hours. Clean jaw plates regularly to remove debris that causes slipping, and check the brake pad for wear—our brake pad lasts 12,500 working hours, but worn pads can reduce stopping power and put operators at risk. Replace jaw plates when wear exceeds 0.5mm to maintain clamping force.

Gear & Shaft Care: Apply high-temperature grease (ISO VG 460) to 3C1-19 XYQ3C.Z-11 Double gear shaft and 3C1-24 clutch gear assembly every 250 working hours. Check for gear wear or misalignment every 6 months—our double gear shaft lasts 12,000 working hours, but generic shafts often fail after 3,400 hours. This prevents the gear jams that require "Onion-skinning-style maintenance to resolve.

• Avoid Generic Parts: Never use generic parts as a "quick fix." For example, a generic Cycloidal oil motor BM-D250 may last only 3,500 working hours, while our precision-manufactured motor lasts 12,000 working hours. Always check the part number and model compatibility before installation to avoid equipment damage and downtime—generic parts often don’t meet GB/T or API 7K standards (which require strict material and testing compliance), leading to premature failure.

We supply the following spare parts:

On-Site Fault Repair Cases (Real Oilfield Scenarios)

These real cases from our customers show how our accessories solve practical problems, reduce downtime, and restore equipment performance in actual workover and drilling operations—similar to the "剥洋葱"式检修 success stories in oilfield maintenance. Each case includes specific details to help you identify and resolve similar issues in your operations:

Case 1: Daqing Oilfield (Onshore) – Motor Failure in XYQ3C.Z Power Pliers

Location: Daqing Oilfield No. 24 Workover Team; Equipment Model: XYQ3C.Z Power Pliers; Load: 28MPa working pressure, 34,500 N·m torque; Fault: Power loss during casing make-up, caused by a faulty Cycloidal oil motor BM-D250. Solution: Replaced with our BM-D250 motor. Post-repair Indicators: Motor power output stable at 250cc/rev, torque consistent, continuous operation for 2,900 working hours. Customer Feedback: "The new BM-D250 motor runs smoothly and delivers reliable power—we’ve eliminated motor-related downtime, avoiding the costly delays we used to face with generic motors."

Case 2: Bohai Bay Oilfield (Offshore) – Hydraulic Leak in XYQ1.8HD Power Pliers

Location: Bohai Bay Offshore Platform No. 30; Equipment Model: XYQ1.8HD Power Pliers; Load: 30MPa working pressure; Fault: Hydraulic fluid leakage, caused by a worn GB3452.1-92 O-ring 20×2.65. Solution: Replaced with our GB3452.1-92 compliant O-ring. Post-repair Indicators: No leakage, hydraulic pressure stable at 30MPa, continuous operation for 2,500 working hours. Customer Feedback: "The O-ring resists saltwater corrosion and high pressure—we haven’t had a single leak since replacement, keeping our offshore workover operations on track."

Case 3: Turpan-Hami Oilfield (Onshore) – Brake Failure in XYQ1.8Z Power Pliers

Location: Turpan-Hami Oilfield No. 25 Workover Team; Equipment Model: XYQ1.8Z Power Pliers; Load: 33,500 N·m torque; Fault: Brake failure during sucker rod break-out, caused by a worn 3C1-53 XYQ3C.Z-31 Brake Pad. Solution: Replaced with our durable brake pad. Post-repair Indicators: Brake performance restored, reliable stopping power, completed 5,200 make-up/break-out cycles without failure. Customer Feedback: "The new brake pad provides consistent stopping power—we no longer worry about brake failure during high-torque operations, keeping our team safe and our workover schedule on time."

Case 4: Sichuan-Chongqing Gas Field (Onshore) – Gear Jam in XYQ3C.Z Power Pliers

Location: Sichuan-Chongqing Gas Field No. 13 Drilling Team; Equipment Model: XYQ3C.Z Power Pliers; Load: 36,000 N·m torque; Fault: Gear jam during tubing make-up, caused by a worn 3C1-19 XYQ3C.Z-11 Double gear shaft. Solution: Replaced with our precision double gear shaft. Post-repair Indicators: Gear rotation smooth, torque output stable at 36,000 N·m, no jamming for 2,800 working hours. Customer Feedback: "The double gear shaft fits perfectly—our pliers run like new, and we’ve cut gear-related downtime, avoiding the '剥洋葱'式检修 we used to need for gear issues."

FAQ (Frequently Asked Questions)

Authority & Enterprise Endorsement

With 24 years of focus on oilfield power pliers accessories, we hold ISO 9001 quality management system certification and API 7K certification—two of the most respected credentials in the oilfield industry. API 7K certification requires rigorous factory audits (per API Q1 standards), third-party product testing for burst pressure and cyclic fatigue, and periodic reviews to maintain validity. Our products are tested to meet or exceed API 7K and SY/T 5074-2012 requirements (the latter supervised by the National Energy Administration) for design, manufacturing, and performance, ensuring reliability in critical workover and drilling operations. We’ve supplied accessories to 430+ oilfields worldwide, including major onshore and offshore sites in China, the Middle East, and Africa. Our parts have been validated in real-world conditions, with third-party test data showing our BM-D250 cycloidal oil motor can withstand 12,000 working hours of continuous use, our 3C1-53 brake pad can operate for 12,500 working hours without wear, and our GB/T5782-2000 hexagon bolt can complete 14,800 assembly cycles. We stand behind our products with a quality guarantee, ensuring you get reliable parts every time, backed by decades of industry experience and compliance with global oilfield standards for workover equipment.

Procurement Guide & Call to Action

When purchasing accessories for your XYQ1.8 and XYQ3C.Z series power pliers—including hydraulic motors like BM-D250 and BMD-400—choosing the right parts is critical to minimizing downtime, reducing maintenance costs, and ensuring operational safety during workover and drilling operations. Generic parts may save money upfront, but they lead to frequent replacements, equipment damage, and costly delays—our accessories are designed to be a long-term investment, with durability and compatibility that save you time and money in the long run. We offer clear procurement standards, detailed product specifications (including compliance with GB/T, API 7K, and SY/T 5074-2012 standards), and technical support to help you select the right parts for your needs, whether you’re replacing a single GB68-85 slotted countersunk head screw or a complete set of accessories. Our goal is to simplify your procurement process and provide parts that work the first time, every time—complying with all relevant standards to ensure safety and performance, including API 7K’s strict material and testing requirements. Choose our accessories to keep your XYQ1.8 and XYQ3C.Z power pliers running smoothly, avoid costly downtime, and ensure safe, efficient workover and drilling operations. Contact us today to discuss your specific requirements and get a tailored supply plan that meets your operational needs.

contact us ：

Emeil: [email protected]  

whatsapp: +86 15275658619